"Water that fills voids, cracks, or other spaces between particles of clay, silt, sand, gravel or rock within a saturated zone or formation (aquifer) below the soil surface." (Virginia Polytechnic Institute and State University, n.y.)

“Groundwater is fresh water (from rain or melting ice and snow) that soaks into the soil and is stored in the tiny spaces (pores) between rocks and particles of soil. Groundwater accounts for nearly 95 percent of the nation’s fresh water resources. It can stay underground for hundreds of thousands of years, or it can come to the surface and help fill rivers, streams, lakes, ponds, and wetlands. Groundwater can also come to the surface as a spring or be pumped from a well. Both of these are common ways we get groundwater to drink. About 50 percent of our municipal, domestic, and agricultural water supply is groundwater. “ (EPA New England & of Site Remediation, n.d.)

“Groundwater is Earth's largest reservoir of fresh, liquid water. Accounting for more than 20% of water usage worldwide and 43% of irrigation water (Earman & Dettinger, 2011; Fetter, 2001; Zektser & Everett, 2004), groundwater serves as the primary source of freshwater for over 2 billion people across the globe (Alley et al., 2002; Famiglietti et al., 2011; Gleeson et al., 2012; WWAP, 2015). “ (Adams et al., 2022)

Sources

Virginia Polytechnic Institute and State University. "A Glossary of Water-Related Terms", by Brian Benham. Publication 442-759

Adams, Kyra H., John T. Reager, Paul Rosen, David N. Wiese, Tom G. Farr, Shanti Rao, Bruce J. Haines, et al. 2022. “Remote Sensing of Groundwater: Current Capabilities and Future Directions.” Water Resources Research 58 (10). John Wiley & Sons, Ltd: e2022WR032219. doi:10.1029/2022WR032219.

EPA New England, Us, and Office of Site Remediation. 2025. “Groundwater.” Accessed September 22.

Could you describe your professional career and/or personal experiences related to space technology and water? Where does your interest in those sectors come from?

I started my research career in 2013, with research interests revolving around various environmental concerns that were deeply rooted in water related issues of Pakistan. Having an educational background in Space Science, it was quite intuitive to possess understanding of the very high potential of applicability of Geospatial technologies in the water sector.

Est ce que les Technologies Spatiales Peuvent Améliorer les Provisions WASH dans les Camps et Quartiers Informels

Le droit humain à l'eau et à l'assainissement

À quoi ressemble votre routine matinale ? Pour la plupart des lecteurs, je suppose que vous utilisez les toilettes, vous vous lavez les mains et peut-être que vous prenez une douche. Cependant, vous arrive-t-il de vous arrêter pour réfléchir à l'eau que vous utilisez sous la douche ou au savon que vous utilisez pour vous laver les mains ?

Technologies Spatiales pour la Détection, la Surveillance et la Gestion des Eaux Souterraines

Les réserves mondiales d'eau souterraine

Les eaux souterraines représentent 30 % des ressources en eau douce de la planète (Shiklomanov 1993) (figure 1) et fournissent au niveau mondial 36 % de l'eau potable, 42 % de l'eau d'irrigation et 24 % de l'eau industrielle, témoignant de leur valeur considérable (Global Environment Facility 2021).

From Jakarta to Nusantara: Land subsidence and other pressing water challenges in a sinking mega city

Jakarta, “the sinking city”, is the current capital city of Indonesia. Located on the Java Sea, this coastal city is home to nearly 30 million people within the greater-Jakarta area. Jakarta has grappled with water management issues for decades, leading to several current day water-related crises. Access to a reliable, potable water supply is extremely limited as there is a significant disparity between those with piped water access and those without. Citizens without piped water access have consequently relied heavily on groundwater and have dug thousands of unregulated wells as a result. This has led to a second water crisis – the chronic overextraction of Jakarta’s underground aquifers. Land subsidence is of the utmost concern as this sinking city is placed at high flood risk from the surrounding ocean. Approximately 40% of Jakarta now lies below sea level as a result and predictive models suggest that the entire city will be underwater by 2050 (Gilmartin, 2019). Compounding these problems, the climate crisis has led to significant sea level rise as glaciers and ice caps continue to melt (Intergovernmental Panel on Climate Change, 2019; Lindsey, 2022). As the city of Jakarta continues to sink and sea levels rise, millions of citizens within Jakarta are at extremely high risk of flooding, particularly during monsoon season. Thousands of residents have already been forced to abandon their homes in search of improved conditions and higher ground (Garschagen et al., 2018).

Comment l'espace a révolutionné les affaissements?

Traduit de l'anglais par Mussa Kachunga Stanis

Introduction

L’affaissement de terrain est un phénomène mondial et se définit comme :

"Un tassement progressif ou un affaissement soudain de la surface de la Terre dû à l'enlèvement ou au déplacement de matériaux terrestres souterrains" - National Oceanic and Atmospheric Administration (2021)

Space-based technologies and data complementing GRACE datasets for groundwater assessments and monitoring

With increasing populations, groundwater abstraction also increased as about half of the global urban population access their water through aquifers (Foster et al., 2020). With 74% of the world population depending on it for safe drinking water services and sanitation (WHO and UNICEF, 2021), groundwater plays a vital role in health.

Technologies Spatiales pour la Détection, la Surveillance et la Gestion des Eaux Souterraines

Les réserves mondiales d'eau souterraine

Can space technologies help improve WASH provision in camps and informal settlements?

The Human Right to water and sanitation

What does your morning routine look like? For most readers I’d assume you use the toilet, wash your hands, and maybe take a shower. However, do you ever stop to consider the water you use to shower, or the soap you use to wash your hands? Often, especially in developed countries, these things are taken for granted, rightly considering access to adequate water, sanitation, and hygiene (WASH) as basic Human Rights (Figure 1).

United Nations/Ghana/PSIPW - 5th International conference on the use of space technology for water resources management

From 10 to 13 May 2022, the United Nations Officer for Outer Space Affairs organized the 5th International conference on the use of space technology for water resources management. The conference was hosted in a hybrid format in Accra, Ghana, by the University of Energy and Natural Resources, Sunyani on behalf of the Government of Ghana. The event was attended by several senior government representatives of the host country including Dr. Mahamudu Bawumia, Vice President of the Republic of Ghana, the Honorary Minister of Education Dr.

От Джакарты до Нусантары: проседание грунта и другие насущные проблемы с водой в тонущем мегаполисе

Джакарта, «тонущий город», является нынешней столицей Индонезии. Расположенный на берегу Яванского моря, этот прибрежный город является домом для почти 30 миллионов человек в районе Большой Джакарты. Джакарта десятилетиями боролась с проблемами управления водными ресурсами, что привело к некоторым нынешним кризисам, связанным с водой. Доступ к надежному питьевому водоснабжению крайне ограничен, поскольку существует значительная разница между теми, кто имеет доступ к водопроводной воде, и теми, кто его не имеет. Граждане, не имеющие доступа к водопроводной воде, в значительной степени зависят от грунтовых вод и в результате вырыли тысячи нерегулируемых колодцев. Это привело ко второму водному кризису: постоянному чрезмерному извлечению водоносных горизонтов Джакарты. Проседание грунта вызывает наибольшую обеспокоенность, поскольку этот тонущий город подвергается высокому риску наводнений со стороны окружающего океана. В результате примерно 40 процентов территории Джакарты в настоящее время находится ниже уровня моря, и прогностические модели предполагают, что к 2050 году весь город окажется под водой (Gilmartin, 2019). Эти проблемы усугубляются тем, что климатический кризис привел к значительному повышению уровня моря, поскольку ледники и ледяные шапки продолжают таять (Intergovernmental Panel on Climate Change, 2019; Lindsey, 2022). В связи с тем, что город Джакарта продолжает опускаться, а уровень моря повышается, миллионы жителей Джакарты подвергаются чрезвычайно высокому риску наводнений, особенно в сезон муссонов (рис. 1). Тысячи жителей уже были вынуждены покинуть свои дома в поисках улучшенных условий и возвышенностей (Garschagen et al., 2018).

How has space revolutionised subsidence?

Introduction

Land subsidence is a global phenomenon and is defined as:

“a gradual settling or sudden sinking of the Earth's surface due to removal or displacement of subsurface earth materials” - National Oceanic and Atmospheric Administration (2021)

Can space technologies help improve WASH provision in camps and informal settlements?

The Human Right to water and sanitation

Space technologies in the detection, monitoring and management of groundwater

Global groundwater supplies

Groundwater accounts for 30% of Earth’s freshwater resources (Shiklomanov 1993) (Figure 1) and is estimated to globally provide 36% of potable water, 42% of irrigation water, and 24% of industrial water – indicating its significant value (Global Environment Facility 2021). Groundwater affords a host of benefits, from providing better protection against drought and microbiological contamination than surface waters, to being generally low cost and accessible to many users.

От Джакарты до Нусантары: проседание грунта и другие насущные проблемы с водой в тонущем мегаполисе

How has space revolutionised subsidence?

Introduction

Land subsidence is a global phenomenon and is defined as:

“a gradual settling or sudden sinking of the Earth's surface due to removal or displacement of subsurface earth materials” - National Oceanic and Atmospheric Administration (2021)

Est ce que les Technologies Spatiales Peuvent Améliorer les Provisions WASH dans les Camps et Quartiers Informels

Le droit humain à l'eau et à l'assainissement

Space technologies in the detection, monitoring and management of groundwater

Global groundwater supplies

Global Precipitation Mission: Improved, accurate and timely global precipitation information

Continuous and reliable global precipitation information is crucial for myriad of weather, climate and hydrological applications. The importance of precipitation in the form of rain, hail, sleet, snow etc. is known to science and clear to a layman. However, it’s quite tricky to measure past precipitation trends or predicting accurate future forecasts. There are three main categories of precipitation data sets available: ground based, satellite-based and blended products of ground and space data (Climate Data Guide, 2014).

From Jakarta to Nusantara: Land subsidence and other pressing water challenges in a sinking mega city

Comment l'espace a révolutionné les affaissements?

Traduit de l'anglais par Mussa Kachunga Stanis

Introduction

L’affaissement de terrain est un phénomène mondial et se définit comme :

"Un tassement progressif ou un affaissement soudain de la surface de la Terre dû à l'enlèvement ou au déplacement de matériaux terrestres souterrains" - National Oceanic and Atmospheric Administration (2021)

Interview with Claudia Ruz Vargas, Researcher at IGRAC

Claudia Ruz Vargas is a civil engineer, graduated from the University of Santiago, Chile, with an international master’s degree in Groundwater and Global change. Her master thesis focused on groundwater modelling for recharge and saline intrusion risk assessment under climate change scenarios, in Cape Verde. Claudia has six years of work experience as a project engineer and researcher. She is currently a researcher at the International Groundwater Resources Assessment Centre (IGRAC), where she is involved in projects of high impact on the groundwater sector. In this interview, we talked to her about her career path, and how she has contributed to an improved and more sustainable management of groundwater resources, at a regional and global levels.

Interview with Hannah Ritchie, PhD student in WASH at Cranfield University

Hannah has always had a love for the outdoors and especially for being by the sea. From her interest in both hydrogeology and development, developed during her undergraduate studies in geology and her travels respectively, she is now undertaking a PhD in WASH, researching water security in rural communities in Kenya. Hannah undertook a six-month internship with Space4Water at UNOOSA in 2021, where she developed her understanding of the importance and application of space-based technologies in the water sector. She believes that groundwater and sanitation are two areas where space technologies are currently under-exploited but in which they hold a lot of potential.

Interview with Dr Khalid Mahmood, Assistant Professor at the University of the Punjab

Could you describe your professional career and/or personal experiences related to space technology and water? Where does your interest in those sectors come from?

Interview with Joshua Ubah, Geospatial Environmental Engineer

Joshua is a Master’s student in Tropical Hydrogeology and Environmental Engineering at Technische Universität of Darmstadt. His interest is focused on hydrogeological processes, groundwater modelling, application of remote sensing and GIS in environmental studies, water management and climate change. He also works as a graduate Intern at AgriWatch BV, a company that applies geospatial solutions for precision Agriculture. As a graduate intern, he applies his interdisciplinary knowledge in developing smart-farming solutions using space-based technologies to farmers in the Twente region of the Netherlands. He deploys satellite imagery, field studies and machine learning algorithms to predict the effect of climate change on arable crops. He also utilizes precipitation data to predict rainfall events to aid farmers in determining planting and harvesting periods. Joshua earned a bachelor’s degree in Geological Sciences, his bachelor’s thesis research aimed at carrying out paleoenvironmental reconstruction using paleocurrent indicators of water flow and direction, and application of ArcGIS to produce maps. Currently, he is working on his master’s thesis with emphasis on the impact of the ancient climate on the paleoenvironment particularly on vegetation, where he tries to research plants response to long-term greenhouse periods and short-term warming events on various timescales throughout Earth's history. His research interests revolve around the application of space technologies in providing solutions and tackling climate change.

Interview with Shagun Garg, Doctoral Researcher, University of Cambridge

In this interview, Shagun Garg, a Doctoral Researcher at the University of Cambridge, shares his journey working at the intersection of water and space technologies. From early experiences with groundwater-related land subsidence in Delhi to improving flood detection methods, his work highlights the advantages and limitations of satellite data in tackling real-world water challenges. Shagun discusses how nature-based solutions, remote sensing, and machine learning come together in his current research to support more sustainable water management. He also reflects on the importance of inclusive approaches that don’t leave out regions or people due to technical constraints. Throughout, he emphasises curiosity, collaboration, and the value of noticing what others might overlook.

Interview with Cadence Kaumoana, Chair at Te Huia and Rangiwherowhero Trust

Short description of the Māori community

Our community is made up of direct descendents from our ancestors; Te Huia and Rangiwherowhero. Our Trust is made up of over 700 beneficiaries and is from the Ngāti Maniapoto and Ngāti Apakura tribes which has over 60,000 overall affiliated tribal members.

Interview with Prof. Hesham El-Askary

Interview with Naledi Msiya

Describe your professional (and/or personal) experience relating to water (and space technologies). Please indicate whether an experience is related to water or to both, space and water).

I have always had an interest for science and the environment and before starting university I was introduced to hydrology which really caught my interest and led me to studying a BSc Degree in Hydrology and Geography.

Interview with Hafsa, Aeman, National Researcher, International Water Management Institute (IWM), CGIAR

In the interview, Hafsa Aeman discusses her passion for integrating water resource management with space technologies. She uses remote sensing and AI to tackle challenges like seawater intrusion and coastal erosion, focusing on vulnerable coastal ecosystems. By leveraging satellite data, her work provides critical insights for sustainable water management, crucial for communities impacted by climate change. Ms Aeman highlights the significant role of space technology in water management, especially through remote sensing, which helps monitor precipitation, soil moisture, and groundwater levels. Her proudest achievement is a publication on seawater intrusion, recognized for its innovative use of AI and remote sensing, contributing to Pakistan’s Living Indus initiative. At the International Water Management Institute (IWMI), Hafsa’s research integrates AI and remote sensing to optimize water and irrigation management systems. She emphasizes the importance of addressing seawater intrusion, which poses threats to agriculture, ecosystems, and global food security. She also underscores the role of community engagement in sustainable water management through capacity-building workshops for farmers, promoting smarter irrigation practices. She advocates for leadership opportunities for young scientists and believes AI can revolutionize water management by enabling more accurate and efficient data analysis. Rain, symbolizing renewal and sustenance, is her favorite aggregate state of water.

Interview with Amin Shakya, PhD Candidate at the University of Twente

We present an interview with Amin Shakya, a PhD candidate at the ITC Faculty of Geo-information science and earth observation at the University of Twente. We delve into Amin’s first engagements with geospatial technologies, his current PhD research on river discharge estimation using earth observation, as well as his prior work on groundwater analysis using space technologies. Further, Amin is engaged with the youth community particularly with the Groundwater Youth Network. We discuss his take on the role of youth in climate change adaptation. Throughout this interview, we touch upon various water challenges across the globe, from disaster risk management in Nepal, to urban water challenges in Mexico, to his current PhD research focused in Europe and in Africa.

Interview with Yolanda Lopez-Maldonado

Name of the community

Maya

Short description of community and hydrogeology of the area

Yucatan is located in the southeast portion of Mexico. The total area of Yucatan is 124, 409 km2 and the population (by 2018) was ca. 2.1 million inhabitants. The landscape of the area is defined by a highly permeable karstic soil, a notable absence of rivers or permanent freshwater resources in the surface, and a high number of natural wells or sinkholes (locally called cenotes, from the Maya word t´sonot).

Interview with Melody Lepine, Director at the Mikisew Cree First Nation Government and Industry Relations

Suncor upgrader, tailing ponds, Athabasca River and Tar/oil sands in Northern Alberta. Photograph taken by Garth Lenz, 2019

Photo by Garth Lenz.

Short description of the Mikisew Cree First Nation community

Nestled on the northwest shore of Lake Athabasca, Fort Chipewyan is one of the most northern communities in the Regional Municipality of Wood Buffalo. Isolated by nature, Fort Chipewyan can only be accessed by plane or boat in the summer and by a winter road in the winter.

Call for local perspectives: Groundwater challenges

Local perspectives and case studies

The aim of the local perspectives and case studies feature is to learn about gaps in water resource management from affected individuals, communities, civil society, professionals, researchers or organisations in the field to identify needs or potential solutions that space technologies could contribute to.

European Space Agency’s “Water Scarcity” Kick-Start

The challenge

Water is one of the most important substances on Earth and covers 70% of the planet. However, freshwater makes up a very small fraction with 97% being saline and ocean-based. While the amount of freshwater on the planet has remained fairly constant over time, the world’s population has exploded, meaning that freshwater is threatened by significant forces, like overdevelopment, polluted runoff, and global warming.

Call for abstracts - until 31 August - for the 5th SADC Groundwater conference

The SADC Groundwater Management Institute will host its 5th SADC Groundwater Conference on 16, 17 & 18 November 2022.

The conference is held annually, with the primary objective of providing a platform for the advancement of knowledge sharing on sustainable management of groundwater at national and transboundary levels across SADC Members States

This year the event will be physically held in Windhoek, Namibia with an online participation option.

Interview with Shagun Garg, Doctoral Researcher, University of Cambridge

Interview with Naledi Msiya

Describe your professional (and/or personal) experience relating to water (and space technologies). Please indicate whether an experience is related to water or to both, space and water).

Interview with Hafsa, Aeman, National Researcher, International Water Management Institute (IWM), CGIAR

Interview with Amin Shakya, PhD Candidate at the University of Twente

Interview with Claudia Ruz Vargas, Researcher at IGRAC

Interview with Hannah Ritchie, PhD student in WASH at Cranfield University

Interview with Joshua Ubah, Geospatial Environmental Engineer

PSIPW announces winners for its 10th Award (2022)

On 5 June 2022, the Prize Council, under the chairmanship of the president of King Saud University Dr. Badran Al-Omar, and under the direction of PSIPW President HRH Prince Khalid Bin Sultan Bin Abdulaziz, approved the winners for the 10th Award (2022) of the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW).

PSIPW 10th Award Winners Honoured at the United Nations Office in Vienna for their Innovative Solutions to Water Scarcity

The 10th Awards Ceremony of the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW) was held under the Patronage of the Custodian of the Two Holy Mosques, King Salman Bin Abdulaziz Al Saud on 13 December 2022 at the United Nations Office in Vienna, Vienna International Centre.

The 10th Awards Ceremony of the Prince Sultan Bin Abdulaziz International Prize for Water (2022)

Under the Patronage of the Custodian of the Two Holy Mosques,
King Salman Bin Abdulaziz Al Saud

and organised by

the Permanent Mission of Saudi Arabia to the United Nations in Vienna

and with the cooperation of

The third Space4Water Stakeholder Meeting

co-organised by the United Nations Office for Outer Space Affairs (UNOOSA)
and the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW)

The 11th Awards Ceremony of the Prince Sultan Bin Abdulaziz International Prize for Water (2024)

Under the Patronage of the Custodian of the Two Holy Mosques,
King Salman Bin Abdulaziz Al Saud

and supported by

Call for local perspectives: Groundwater challenges

Local perspectives and case studies

Interview with Cadence Kaumoana, Chair at Te Huia and Rangiwherowhero Trust

Short description of the Māori community

Interview with Yolanda Lopez-Maldonado

Name of the community

Maya

Short description of community and hydrogeology of the area

Interview with Melody Lepine, Director at the Mikisew Cree First Nation Government and Industry Relations

Photo by Garth Lenz.

Short description of the Mikisew Cree First Nation community

Introduction to Modflow and Model Use

This course provides basic knowledge about MODFLOW and Model Muse, which can be used to develop, run, and post-process models. MODFLOW in Model Muse combines many of the capabilities found in MODFLOW 6, MODFLOW-2005, MODFLOW-NWT, MODFLOW-USG, and MODFLOW-LGR, and provides a platform for adding packages.

ARSET - Groundwater monitoring using observations from NASA’s Gravity Recovery and Climate Experiment (GRACE) missions

Overview

Groundwater makes up roughly 30% of global freshwater. It also provides drinking water for the world’s population and irrigation for close to one third of global agricultural land. Because of this level of reliance, monitoring groundwater is crucial for water resources and land management. The Gravity Recovery and Climate Experiment (GRACE) and GRACE-Follow On (GRACE-FO) missions from NASA and the German Research Centre for Geosciences (GFZ) provide large-scale terrestrial water storage estimation from mid-2000 to present.

ARSET - Water resource management using NASA Earth science data

Overview:

This online course covers precipitation (rainfall and snow fraction), soil moisture, evapotranspiration, runoff and streamflow, groundwater, and lake level heights. Participants are introduced to a number of NASA data products.

Objective:

Participants will be able to use NASA remote sensing observations and land-atmosphere models to:

Webinar: Groundwater for Water Security in Africa

Overview

This webinar is meant to contribute to the AMCOW Pan African Groundwater Programme (APAGroP) and its various capacity building actions. The webinar is intended to support African Member States and other relevant stakeholders to develop and implement evidence-based groundwater policy and practice in Africa for improved lives and livelihoods.

ARSET - Groundwater monitoring using observations from NASA’s Gravity Recovery and Climate Experiment (GRACE) missions

Overview:

Groundwater makes up roughly 30% of global freshwater. It also provides drinking water for the world’s population, and irrigation for close to 1/3rd of global agricultural land. Because of this level of reliance, monitoring groundwater is crucial for water resources and land management. The Gravity Recovery and Climate Experiment (GRACE) and GRACE-Follow On (GRACE-FO) missions from NASA and the German Research Centre for Geosciences (GFZ) provide large-scale terrestrial water storage estimation from mid-2000 to present.

Water-ForCE Webinar: Water and Agriculture

During this webinar, we will be discussing water quality (run-off from agriculture, pollution of surface water for irrigation) and quantity of water (drought, extreme rainfall, groundwater level, soil moisture) to tackle the water and agriculture domains for the Copernicus Roadmap.

Speakers:

The 40th IAHR World Congress in Vienna, Austria 2023

The 40th IAHR World Congress in Vienna, Austria, from August 21st to 25th, 2023.

The main theme of the 40th IAHR World Congress will be “Rivers – Connecting Mountains and Coasts” focusing attention on the importance of considering the integral water cycle to address present and future challenges.

International Conference on Groundwater Investigations and Remote Sensing Techniques

ICGIRST 2021: 15. International Conference on Groundwater Investigations and Remote Sensing Techniques aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Groundwater Investigations and Remote Sensing Techniques.

ICSWGWI 2022: 16. International Conference on Surface Water and Ground Water Interactions - Lisbon, Portugal

The International Research Conference is a federated organization dedicated to bringing together a significant number of diverse scholarly events for presentation within the conference program. Events will run over a span of time during the conference depending on the number and length of the presentations. With its high quality, it provides an exceptional value for students, academics and industry researchers.

Third International Conference on Water and Climate

This year, at the invitation of the Moroccan authorities and in partnership with the Ministry of Equipment and Water of the Kingdom of Morocco, the International Network of Basin Organizations (INBO) and the World Water Council (WWC), the 3rd International Conference on Water and Climate (ICWC 3) will be held on 6 and 7 July 2023 in Fez, Morocco.

The role of groundwater in advancing Africa’s socio-economic development

The African Ministers Council on Water (AMCOW) is hosting a webinar that will discuss the significance and contribution of groundwater to water security including domestic supply for drinking and sanitation, agricultural and industrial productions as well as ecosystem services in Africa.

The webinar will feature expert presentations and panel discussions among groundwater experts from the private sector, CSOs, academia and research institutions both within and outside Africa.

49th IAH Congress The International Association of Hydrogeologists

The theme of the 49th IAH Congress is “Groundwater Sustainability and Poverty Reduction”. Poverty reduction is a top priority for most countries in the world. Unfortunately, most of the poor countries and regions have been faced with serious problems of water scarcity and contamination. It is the mission and ultimate responsibility of the international community of hydrogeologists to help the people get access to sustainable safe supply of fresh groundwater.

IWA Digital World Water Congress

The IWA Digital World Water Congress is a major virtual event which aims to bring together global stakeholders from across the industry. Attendees of the event will include scientists, academics, water professionals, utilities, regulators and engineers.

II Making Groundwater Visible

March 9 through March 30 Digital Event

Stories of the several communities around the planet with the groundwater are extremely important because make the groundwater visible for all!

This is the aim of the second edition of our event: to talk about groundwater for everyone.

50th International Association of Hydrogeologists Congress 2023

The 50th Congress of the International Association of Hydrogeologists will be hosted at the Cape Town International Convention Centre in Cape Town, South Africa from 17 to 22 September 2023.

The Congress theme for IAH 50 is Groundwater: A Matter of Scale. This theme combines scientific advances through local to global scale experiments and case studies, with those extending over various temporal scales.

The 11th Awards Ceremony of the Prince Sultan Bin Abdulaziz International Prize for Water (2024)

Winners for the 11th Award

Leading international scientists with a diversity of backgrounds -- including materials science, chemistry, engineering, and environmental science, as well as hydrology -- won the five prizes for a wide variety of relevant, groundbreaking solutions that promise to help provide needed drinking water to the world's people.

WMO HydroHub Youth Symposium

Water data of adequate quality and quantity is a prerequisite to address the increasing water-related challenges around the world and support decision-making in all aspects of water resources management. Enhancing the provision of water data is vital to effective water resources management and the provision of safe and reliable water supplies. In this regard, the youth engagement in the innovation and operations of water monitoring systems is essential.

5th Space for Hydrology Workshop

The European Space Agency, in the context of the "Earth Observations Science for Society" Programme, the Global Energy and Water EXchanges project (GEWEX) of the World Climate Research Programme and Centre National d'Études Spatiales (CNES) are organising a sequel joint event to Hydrospace2021 and EO4Water2020, called 5th Space for Water Cycle and Hydrology Workshop, HYDROSPACE 2023.

XVIII World Water Congress

Water is for all, including humans and nature. As a precious natural resource, water plays a vital role in meeting human needs, preserving the environment and developing our countries. Thus, water management should consider, coordinate and balance the various needs, and fundamentally achieve harmony, which embodies a dynamic, coordinated, appropriate and equitable relationship, between humans and nature.

Groundwater Summit

Overview:

In 2022, the international World Water Day (WWD) will be dedicated to groundwater. As usual, the World Water Development Report (WWDR) for that year will be about the same topic: groundwater. Groundwater Summit is envisaged as a central celebration of the WWD, and the venue for launching the WWDR.

Groundwater: Mediterranean and Semi-Arid Regions

GROUNDWATER: Mediterranean and Semi-Arid Regions

16 Feb - 1 Apr 2022 – Online Webinar

A series of webinars about the current challenges of groundwater management.

The distribution of water resources varies at regional and global scales, with intensifying shifts mainly due to population growth, rapid urbanization, higher living standards, water pollution, and changing climates. The pressure on groundwater in particular is becoming a universal challenge, but the crisis is more serious in arid and semi-arid areas.

UNESCO-IWRA Online Conference

The overarching theme of the Online Conference is “Emerging Pollutants: Protecting Water Quality for the Health of People and the Environment”. This theme was selected to focus the conference on the intersection of the science-policy interface when addressing emerging pollutants, and steps and mechanisms that must be pursued to protect the health of people and the environment.

The Online Conference will highlight the ways the world can advance knowledge, research and solutions for managing emerging pollutants to improve and protect water quality in a changing world.

Fifth Space4Water Stakeholder Meeting

Co-organised by the United Nations Office for Outer Space Affairs (UNOOSA)
and the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW)

29-30 May 2025, Vienna, in person, with selected sessions in hybrid format

Groundwater, key to the Sustainable Development Goals

The « Agenda 2030 », the 17 « Sustainable Development Goals » (SDGs), their 169 targets and their 240 well attended indicators, multinational and multilateral roadmaps, constitute a great message of hope for the future of human societies and terrestrial ecosystems, currently facing the impacts of global change.

30th Danube Conference 2023

Danube Conferences traditionally are the common connections of the hydrological regional cooperation. These meetings commenced in Budapest in 1961. Since 1975, cooperation has been conducted within the framework of the International Hydrological Programme (IHP) of UNESCO.

14th National Monitoring Conference

The National Water Quality Monitoring Council (NWQMC) will host its 14th National Monitoring Conference from March 10 to 14, 2025, in Green Bay, Wisconsin at the KI Convention Center. All federal, state, tribal and local water professionals, nonprofits, academia, water consultants and industry, and volunteer scientists are welcome at this important national forum on monitoring Great Lakes, groundwater, streams, rivers, lakes, wetlands, estuaries, and oceans.

International Conference on Environmental and Water Resources Engineering

Overview

ICEWRE 2021: International Conference on Environmental and Water Resources Engineering is the premier interdisciplinary forum for the presentation of new advances and research results in the fields of Environmental and Water Resources Engineering. The conference will bring together leading academic scientists, researchers and scholars in the domain of interest from around the world.

This year the conference will be held digitally

Prices

Early Registration Ticket Fees:

United Nations/Ghana/PSIPW - 5th International conference on the use of space technology for water resources management

Rationale and context

The United Nations Office for Outer Space Affairs (UNOOSA) and the Government of Ghana are jointly organizing a Conference with the support of the Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW) to promote the use of space technology in water management to the benefit of developing countries.

The Conference will be held in Accra, Ghana, from 10- 13 May 2022, hosted by the University of Energy and Natural Resources on behalf of the Government of Ghana.

GIRE3D International Congress

Abstract: Arid regions are known for their limited water resource potential. The sustainable management of water resources in these areas is a permanent challenge, due to the growing demand, linked to population growth coupled with the negative impacts of climate change. The GIRE3D 4th edition 2023 is an opportunity for all water stakeholders to exchange methodologies adapted to the exploitation and management of water in such contexts.

IAHR Groundwater Webinar on Roles of Uncertainty in the Assessment of Subsurface Flow and Transport

Modern models of flow and transport across environmental and industrial porous media have reached a remarkable level of complexity, with the aim of capturing the nature of target phenomena and processes. The level of complexity of these models could hamper unambiguous understanding of relationships among model inputs and outputs of interest. This is a critical aspect in a variety of scenarios, including flow and reactive transport in heterogenous aquifers and sustainable use of underground resources. All of these settings are associated with multiple sources of uncertainty.

IWRA XIX World Water Congress

Event banner with location and date of conference

Hosted by the International Water Resources Association (IWRA) and the Ministry of Equipment and Water (MEE) of the Kingdom of Morocco, the Congress will take place at the PICKALBATROS Hôtel Du Golf in Marrakech, Morocco, from December 1-5, 2025, under the theme “Water in a Changing World: Innovation and Adaptation.”

Local Perspectives Case Studies

Women and their everyday lives related to Water: Ilankuzhali Elavarasan

The town administration has cutoff the supply of canned water for drinking and the only potable drinking water is the municipal pipes established at every streets. The water is untreated, clogged and sometimes smell much. There is no confidence that the water is consumable. The village people tend to drink it untreated due to lack of awareness. This may lead to developing diseases like worms, Cholera, etc on the long run.

The extraction of information on groundwater for a geographically small, water-scarce and groundwater reliant region

The Kingdom of Bahrain has an arid climate with minimal rainfall amount per year. The rapid increase in urbanization and population growth has placed a huge demand on water resources. The only natural resources available in the country and what has been relied on historically for water usage are spring waters and ground water, which are quickly being depleted due to the increasing demands on water needs. To understand the quantity of groundwater currently available to support the country’s survival needs, space technologies are a crucial tool that can be explored.

Decline in groundwater levels and quality

Photo of a cenote in Merida Yucatan, CC license

Decline in groundwater quality is the challenge I have observed and experience in my country. Groundwater systems are particularly important in places where no rivers flows on the surface. In Yucatan, Mexico, for example, there are no rivers on the surface but we can find the Yucatán Peninsula Aquifer one of the biggest aquifers in the world. Today, the peninsula only has a population of 2 million, yet groundwater is being overexploited and polluted. In the peninsula, all socio-economic sectors rely directly or indirectly on groundwater. The main users – agriculture and industry – are causing high levels of pollution and severely overexploiting the cenotes. The quality of groundwater is also being affected by the construction of roads, buildings and other modifications that include pumping wells, infrastructure for tourism and the use of technology to extract and modify groundwater. In addition, warmer temperatures and increasingly unpredictable rainfall during the year are making it harder to store water. Another factor is that the large number of cenotes and lack of reliable hydrological data are making it difficult for users to monitor and control their usage of groundwater. Consequently, the population faces a greater risk to its groundwater reserves than is currently recognized. I would like use time–space evidence from the natural and social sciences for Earth information systems, but to find approaches to better integrate Indigenous knowledge and in situ observations from local communities that can be used to identify/estimate parameters that can support the management of aquifers.Y

Water security: A tracking and quantifying methodology for monitoring water resources in a water scarce region

The Kingdom of Bahrain has an arid to semi-arid climate with minimal rainfall amount per year. The rapid increase in urbanization and population growth has placed a huge demand on water resources. The only natural resources available in the country and what has been relied on historically for water usage are spring waters and ground water, which are quickly being depleted due to the increasing demands on water needs. Due to the limits of groundwater and spring waters, they are now majorly complemented with non-conventional water resources to supply the country’s needs. The country has invested heavily in water desalination plants of sea water to meet domestic needs and tertiary sewage treatment plants for municipal and agricultural uses through water and treated wastewater networks.

Water scarcity in Egypt’s arid regions

Satellite image of Toshka Lakes in Egypt

Egypt faces significant water scarcity due to its arid climate, rapid population growth, and dependency on the Nile River. Limited rainfall and inefficient water management exacerbate the crisis. Space technology can play a crucial role in monitoring water resources, optimizing agricultural water use, and identifying potential groundwater sources.

Water availability and management strategies for spring-dependent smallholder farms in southwest Kyrgyzstan

A view of the Khojabakirgan River flowing through the village of Layli in Leilek District, Kyrgyzstan. The river winds through a broad valley with scattered trees, farmland, and dry hills under a clear blue sky.

Water availability is a critical issue for smallholder farmers in Southwest Kyrgyzstan, where natural springs serve as the primary water source for irrigation, livestock, and household use. However, these springs are becoming increasingly unreliable due to climate change, land degradation, and inefficient management practices. Water-related challenges include: Seasonal and interannual fluctuations in spring discharge, leading to water shortages during dry periods. Climate change impacts, such as rising temperatures and altered precipitation patterns, reducing groundwater recharge. Water loss due to inefficient infrastructure, including seepage and evaporation from open channels. Lack of monitoring and sustainable management strategies, leading to overuse and depletion of spring water resources. These challenges directly impact agricultural productivity, food security, and rural livelihoods, making it essential to develop adaptive water management strategies to optimize spring water use and ensure long-term sustainability. This research focuses on hydrological assessments, water conservation techniques, and community-based management approaches to improve water security for smallholder farmers in the region.

Groundwater resource management using artificial intelligence and remote sensing technologies

Groundwater is a critical resource for drinking water, agriculture, and industry. With increasing anthropogenic activities and exponentially increasing population, groundwater in India is facing several challenges, related to quality as well as quantity, due to over-extraction, pollution, and climate change. Over-exploitation of groundwater may impact the availability and quality of groundwater which is not sustainable. Moreover, due to pollution in surface water, groundwater quality is also affected. In most of the cities of India, the quality of groundwater is below standard. Remote sensing and artificial intelligence can play a very vital role in monitoring the quantity as well as quality of groundwater. As, it is clear that presently no remote sensors can directly be used for groundwater observations, but by using surface features anomalies and gravity data obtained by various satellites, optimal groundwater management can be done using remote sensing. Space4water is one of the best communities addressing water related issues and work towards sustainable solutions. For the last three years, I am following this community, and I find that the community consists of scientists, NGO, policy makers etc. This combination has the potential to resolve issues related to any challenges related to social issues. I am looking for few global research partners who work for groundwater management using space technology. I am equally looking for data driven resource persons who can collaborate with me on real field conditions of various countries, related to groundwater management. What has been done so far is listed below: • Worked on GRACE satellite data and used it in field condition to study groundwater anomalies of few cities of India. • Developed spatio-temporal maps of Standardized Groundwater Index (SGI). • Worked on water quality of water bodies. • Used various satellite data to map water spread areas of various water bodies. • Worked on machine learning models to study in situ remediation of contaminated groundwater.

Lack of continuous qualitative and quantitative groundwater data for groundwater management within the Congo Basin

The Congo Basin (CB), home to the world’s second-largest river basin and tropical rainforest (Laraque et al., 2020), holds significant groundwater resources (Kasongo-Numbi, 2008; MacDonald et al., 2012; Tourian et al., 2023). Despite the abundance of surface water within the region, groundwater is a crucial source of freshwater for the vast majority of the CB’s population. It plays a vital role in sustaining human consumption, particularly for the rural population, also, for ecosystems and agriculture even though the latter is still rainfed. Domestic water use constitutes the first sector that withdraw the large amount of groundwater in the basin. The water withdrawal is projected to grow significantly due to the human population that is expected to double by 2050 in Africa (Partow, 2011, United Nations, 2019). Additionally, considering the emerging importance of the global change due to climate change and environmental alterations that have already affected surface water within the basin (Reed and Miranda, 2007; Wongchuig et al., 2023), groundwater is likely to become a critical resource for future development in the region. Therefore, there is an urgent need for a sustainable groundwater management. However, groundwater management in the CB faces numerous challenges.

Escalating water scarcity and groundwater overextraction in Jordan: climate-driven droughts and the urgent need for integrated resource management

This challenge centers on Jordan’s worsening water crisis, one of the most severe globally. The country faces chronic water scarcity due to naturally low rainfall, limited renewable water sources, and rapid population growth. The crisis is further intensified by climate-driven droughts and unsustainable groundwater extraction, which together threaten long-term water security. The challenge aims to develop space-based monitoring and management strategies to better understand, predict, and mitigate the compounding impacts of drought and groundwater depletion on national water systems.

Local Groundwater Balance Model

graphic describing the model - including tanks, drinking water, precipitation, water loss, etc.

The development of the LGBM was made by quantifying flows and distribution of groundwater in a local aquifer, with the ultimate goal to influence groundwater literacy.

Socio-groundwater toolbox

Graph describing the interactions between social, economic and political settings, related ecosystems, local knowledge, land and resource management as well as social instututios and other world views

To date, hydrological issues are playing a key role in the implementation of the goals in which water has a crosscutting role linked to many other Sustainable Development Goals (SDG’s) set in the 2030 Agenda. According to SDG 6, there is a need to monitor eight different interrelated targets globally. At present, several global tools and initiatives for water monitoring exist. A prerequisite for their implementation is to have a thorough knowledge of the system and a consistent database, usually collected at a country and global scale worldwide.

Global Gravity-based Groundwater Product

Groundwater is an essential factor for ecosystems and humanity alike. It ensures ecosystem stability, energy and food security, and promotes human health. Groundwater is the largest component of global liquid freshwater resources in the water cycle, providing about 30% of the total freshwater. Groundwater accounts for 33% of the global water withdrawals by mankind, with more than two billion people depending on groundwater as primary water resource. However, despite its importance, groundwater is often not included in sustainable water management actions and plans.

Rural Water Supply Network

The Rural Water Supply Network (RWSN) is the global network for rural water supply professionals, with 11,000 members in more than 150 countries. RWSN is a strategic global platform for knowledge sharing and collaboration in the water sector with a central focus on the achievement of universal access to safe, affordable water supplies.

Deepwaters.ai

DeepWaters AI uses satellite data and AI to find underground drinking water and pipe leaks. It has created a map of the Earth’s underground water, with up to 98% accuracy. It was awarded a European Space Agency AI Kickstart contract in 2018. DeepWaters AI is supported by Esri, Amazon and Nvidia startup programs. It is a UK based social impact startup, that donates 51% of profits to water philanthropy. DeepWaters AI combines neural networks with ESA Sentinel 1 & 2 satellite data.

Prince Sultan Bin Abdulaziz International Prize for Water

The Prince Sultan Bin Abdulaziz International Prize for Water (PSIPW) is a scientific prize with a focus on innovation. Established in 2002 by HRH Crown Prince Sultan Bin Abdulaziz, it rewards the efforts made by scientists, inventors and research organizations around the world which contribute to the sustainable availability of potable water and the alleviation of the escalating global problem of water scarcity.

Remote Sensing, GIS and Climatic Research Lab, University of the Punjab

The emerging demand of GIS and Space Applications for Climate Change studies for the socio-economic development of Pakistan along with Government of Pakistan Vision 2025, Space Vision 2047 of National Space Agency of Pakistan, and achievement of UN Sustainable Development Goals (SDGs) impelled the Higher Education Commission of Pakistan (HEC) to establish Remote Sensing, GIS and Climatic Research Lab (RSGCRL) at University of the Punjab, Lahore, Pakistan.

Department of Geodesy and Geoinformation of the TU Wien

Geodesy and Geoinformation take on key roles in our modern society as provider of information about geographical locations, environmental processes, physical fundamentals and are pivotal in enabling access to social relevant spatial data. Since its early days in the 19th century, the TU Wien hosts scientists and engineers undertaking geospatial data research. Today, a multitude of research fields in the evolving domain of geodesy and geoinformation is in the scope of our academic institution.

Deltares

Deltares is an independent institute for applied research in the field of water, subsurface and infrastructure. Throughout the world, we work on smart solutions, innovations and applications for people, environment and society.

University of Energy and Natural Resources

The University of Energy and Natural Resources (UENR) was established by an Act of Parliament, Act 830, 2011 on December 31, 2011. The University is a public funded national institution which seeks to provide leadership and management of energy and natural resources and be a centre of excellence in these critical areas.

International Groundwater Resources Assessment Centre

IGRAC is a research centre that provides groundwater data and information to enhance knowledge and wisdom, support decision making, and promote a world where groundwater is managed sustainably and equitably. Through monitoring and assessment, based on in-situ data and information, we focus our research on groundwater quantity, groundwater quality and transboundary aquifers. IGRAC contributes to capacity development, advocacy and awareness-raising, through knowledge exchange at multiple levels.

Kandel

Tejendra Kandel

Ph.D. Researcher (Ph.D. Candidate) at University of Virginia

Tejendra Kandel is a PhD Candidate in Hydrology at the University of Virginia, Department of Environmental Sciences. His research focuses on eco-hydrological dynamics in mountainous watersheds, particularly in Nepal’s mid-hills, where communities face increasing water scarcity due to climate change, land-use shifts, unplanned pine plantations, and deforestation.

Aeman

Hafsa Aeman

Senior Research Officer - Geoinformatics, CGIAR International Water Management Institute

Hafsa Aeman is a Senior Research Officer at the International Water Management Institute (IWMI) in Pakistan. In this capacity, she is deeply involved in various projects, notably the Water Resource Accountability in Pakistan (WRAP) and NEXU Gains initiatives, both supported by the UK Foreign, Commonwealth, and Development Office (FCDO). These projects are geared towards augmenting capacity for water resource management at the provincial and district levels.

Dekongmen

Benjamin Wullobayi Dekongmen

PhD Candidate University of Energy and Natural Resources

Benjamin is a poised and passionate Geospatial enthusiast and Environmental Hydrologist with a strong research focus on Groundwater Recharge, Flood Risks Terrain and Climate Change modelling. He has a wide range of expertise in GIS and Remote Sensing, Soil and Water Assessment Tool (SWAT), Python, and Google Earth Engine.

Ruz Vargas

Claudia Ruz Vargas

Researcher International Groundwater Resources Assessment Centre

Claudia Ruz Vargas is a researcher at the International Groundwater Resources Assessment Centre (IGRAC), in Delft, the Netherlands. Through her work at IGRAC, she became a steward for the Essential Climate Variable (ECV) Groundwater at the Global Climate Observing System (GCOS), a programme co-sponsored by the World Meteorological Organization (WMO), the Intergovernmental Oceanographic Commission of UNESCO (IOC-UNESCO), UN Environment, and the International Science Council (ISC).

Space-based Solution

Identification of potential locations/recharge for shallow groundwater in geographically small countries - mapping completed - need in situ data

Map of potential shallow groundwater locations or recharge areas in Bahrain

Solution summary

To address the challenge of water security in Bahrain, this solution integrates space-based technologies and geospatial analysis to identify and monitor potential water resources, particularly shallow groundwater. The methodology involves the use of satellite-derived datasets and terrain modelling tools to analyse hydrological behaviour, soil moisture, and elevation-based drainage characteristics.

Three main data sources were incorporated into the solution:

Groundwater resource management using artificial intelligence and remote sensing technologies - in development

Collaborating actors

Department of Soil & Water Conservation Engineering, GBPUAT Pantnagar
Indian Institute of Technology Delhi (IIT Delhi)
Dr. Rajendra Prasad Central Agricultural University, Pusa
Central University of Jharkhand, India
Assam University, Silchar

Groundwater

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