The Water Data Podcast

55:01

How can we measure Evapotranspiration from Space?...

The Water Data Podcast ·

2026/09/29

Can we measure evapotranspiration from space? And when a satellite produces a map of crop water use, how certain are those numbers?Dr. Gilles Boulet joins host Veena Srinivasan for a deep dive into one of the most important and difficult-to-measure components of the hydrological cycle: evapotranspiration.Evapotranspiration, or ET, combines evaporation from soil with transpiration through vegetation. In many semi-arid landscapes, it accounts for most of the water leaving the land surface. However,

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71:23

25 Years of Watching Groundwater at the Kabini...

The Water Data Podcast ·

2026/09/15

What can 25 years of observing the same watershed teach us about groundwater? Can intensive pumping make groundwater deeper in valleys than on hills? Can decades of depletion be reversed by just a few exceptionally wet years? And how does fertilizer applied at the surface end up contaminating groundwater tens of metres below?Professor Shekhar Muddu joins host Veena Srinivasan on the Water Data Podcast for a deep dive into the Kabini Critical Zone Observatory and what decades of field measurements

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72:41

Why Safe Drinking Water Is More Than a Technology...

The Water Data Podcast ·

2026/09/01

What does it actually take to provide safe and affordable drinking water for everyone? And if households must store, filter, boil or buy water before they can safely drink it, can we really say the water system is providing a service?In this episode of The Water Data Podcast, host Veena Srinivasan speaks with Professor Isha Ray, formerly of the Energy and Resources Group at the University of California, Berkeley, about drinking water access, affordability, inequality and the hidden labour involved

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70:07

Why More Water Won't Fix Water Scarcity with Newsha...

The Water Data Podcast ·

2026/08/18

How does saving water create a financial crisis for the utilities that supply it? And why do cities continue building water systems based on laws, infrastructure, and climate assumptions that are no longer relevant?In this episode of The Water Data Podcast, Newsha Ajami joins host Veena Srinivasan to unpack the hidden risks inside modern water systems- from outdated water rights and groundwater overuse to drought, demand management, decentralised reuse, and climate resilience.Newsha Ajami is an

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53:29

How does the world measure water? with Maggie Kossida

The Water Data Podcast ·

2026/08/04

What does it mean to measure water for the entire planet? Who collects the data behind SDG 6? And how do numbers from hundreds of countries become a global picture of water security, sanitation, wastewater, ecosystems and governance?In this episode of The Water Data Podcast, Dr Maggie Kossida , from the UN-Water Integrated Monitoring Initiative for SDG 6 joins host Veena Srinivasan.Dr Kossida helps coordinate one of the world’s most ambitious water-data efforts: bringing together information from

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49:39

Can Data Help Communities Govern Water with...

The Water Data Podcast ·

2026/07/21

What if technology was designed not to manage communities, but to strengthen their voice and agency?In this episode of the Water Data Podcast, Professor Aaditeshwar Seth of IIT Delhi joins host Veena Srinivasan. Aaditeshwar is the co-founder of Gram Vaani and one of the key people behind CoreStack, a digital public infrastructure for commons, resilience, and equity.In this episode, Aaditeshwar traces his journey from computer science and rural communication networks to building participatory tools

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58:00

Water Security: 80 Years of Global Water Policy with...

The Water Data Podcast ·

2026/07/07

Where did the idea of “water security” come from? How did countries around the world come to agree on shared goals for drinking water, sanitation, river basin management and sustainable development? And why does water still lack the kind of global institutional architecture that exists for climate change and biodiversity?In this episode, Dr Roberto Lenton, one of the world’s leading voices on water security and international development joins host Veena Srinivasan for a conversation on the evolution

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51:09

Water Accounting across Scales with Wim Bastiannsen

The Water Data Podcast ·

2026/06/23

How can satellites measure crop water use from space? Can they help farmers irrigate more precisely, improve yields, and make water distribution fairer across canal systems?In this episode of the Water Data Podcast, Veena Srinivasan speaks with Professor Wim Bastiaanssen, a pioneer in satellite-based evapotranspiration mapping and the original developer of SEBAL — the Surface Energy Balance Algorithm.Professor Bastiaanssen explains how satellite imagery can estimate actual evapotranspiration, soil

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66:16

The Deep Politics of Canal Irrigation in India with...

The Water Data Podcast ·

2026/06/11

Why do canal irrigation systems repeatedly produce head-tail inequality? Why do some farmers receive reliable water while others are systematically deprived for decades?In this episode, Veena Srinivasan speaks with Professor Peter Mollinga, a leading scholar of irrigation and water governance, about the politics of canal irrigation systems in India. Drawing from nearly 40 years of research on the Tungabhadra Left Bank Canal in Karnataka, the conversation explores the origins of “protective

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77:54

California's Groundwater Governance Successes | Dr....

The Water Data Podcast ·

2026/05/26

California’s groundwater crisis did not emerge overnight. Decades of unrestricted pumping, falling groundwater levels, land subsidence, disappearing streamflows, and recurring droughts eventually pushed the state toward one of the world’s most ambitious groundwater governance reforms: the Sustainable Groundwater Management Act (SGMA).In this episode of the Water Data Podcast, Dr. Maurice Hall, Senior Advisor for Climate Resilient Water Systems at the Environmental Defense Fund, joins host Veena

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73:14

The Hidden Politics of Water Systems | Margreet...

The Water Data Podcast ·

2026/05/12

Why is water never just a technical problem? Who gets water, who loses access, and who gets to decide?In this episode of the Water Data Podcast, Professor Margreet Zwarteveen, an internationally recognised scholar of water governance, irrigation, gender, and the politics of natural resources, joins host Veena Srinivasan, Executive Director at WELL Labs.Margreet Zwarteveen is Professor of Water Governance Education at IHE Delft and Professor of Governance and Inclusive Development at the University

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56:15

How Satellite Tech Imaged the Global Groundwater...

The Water Data Podcast ·

2026/04/28

How can a satellite measure water buried deep underground? What can space-based observations tell us about groundwater depletion across the world? And how is this data shaping the future of water policy and governance?Professor Jay Famiglietti, a leading hydrologist and former NASA scientist, joins host Veena Srinivasan on this episode of the Water Data Podcast to discuss the revolutionary GRACE satellite mission.Jay is a Global Futures Professor at Arizona State University and is widely known for

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1:48

The Water Data Podcast is back with Season 3!

The Water Data Podcast ·

2026/04/27

Listen to host Veena Srinivasan as she continues to talk to researchers, innovators, government officials and business leaders working on the forefront of water systems. The show features rich conversations on the science, systems, and stories that shape our water future. Episodes drop every other Tuesday. Subscribe to our YouTube channel for more updates. Watch episodes from season two here: https://youtube.com/playlist?list=PLrHB5gd1QIB8Tc2zlGRrz5QCxxP70FNBh&si=oQ-hH87g7...

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75:34

The Social Science of Water: Beyond Hydrology ft...

The Water Data Podcast ·

2026/03/03

What does water have to do with power, caste, labor, and economic policy? In this episode of the Water Data Podcast, Professor Trevor Birkenholtz (Penn State University) explains how political ecology helps us understand groundwater, irrigation, and large-scale water infrastructure in India. Trevor Birkenholtz is a political ecologist and development geographer with regional interests in South Asia and the United States. His empirical interests are in water-supply development, water infrastru...

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57:53

Participatory Groundwater Management with Himanshu...

The Water Data Podcast ·

2026/02/17

In this episode of The Water Data Podcast, host Veena Srinivasan speaks with Dr. Himanshu Kulkarni, hydrogeologist and co-founder of ACWADAM, about groundwater science in India – from basalt aquifers and rural irrigation to springshed revival in the Himalayas and participatory groundwater management.This episode was recorded in November 2025 on the sidelines of a two-day event celebrating the life and work of Dr. Himanshu Kulkarni, marking his recognition with the 2025 International Water Prize by

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75:09

Himanshu Kulkarni and Indian Hydrogeology | The Water...

The Water Data Podcast ·

2026/02/03

In this episode of The Water Data Podcast, host Veena Srinivasan speaks with Dr. Himanshu Kulkarni, hydrogeologist and co-founder of ACWADAM, about groundwater science in India – from basalt aquifers and rural irrigation to springshed revival in the Himalayas and participatory groundwater management.This episode was recorded in November 2025 on the sidelines of a two-day event celebrating the life and work of Dr. Himanshu Kulkarni, marking his recognition with the 2025 International Water Prize by

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73:28

The Art of Good Hydrological Modelling | Hubert Savenije

The Water Data Podcast ·

2026/01/20

How can simple models explain the complexity of rivers, landscapes and water systems? Why does hydrology sometimes struggle to connect theory and reality?In this episode of the Water Data Podcast, Veena Srinivasan speaks with Prof. Hubert Savenije, Emeritus Professor of Hydrology at TU Delft and one of the most influential thinkers in modern hydrological science.They discuss Hubert’s early journey in hydrology and how intuition shaped his scientific thinking, the importance of embracing uncertainty

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68:09

Nitrogen and Phosphorous Leave a Legacy of Water...

The Water Data Podcast ·

2026/01/06

When a lake turns green with algae, or nitrate shows up in drinking water, the most obvious question would be: Why can’t we fix this quickly?In this episode of the Water Data Podcast, Veena Srinivasan speaks with Professor Nandita Basu from the University of Waterloo about nitrogen and phosphorus legacies – the hidden nutrient stores in soils, groundwater, and sediments that keep polluting waterways for decades.They unpack how the Haber-Bosch process transformed agriculture, why nitrogen use

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70:55

Eco-Hydrology with Jagdish Krishnaswamy

The Water Data Podcast ·

2025/12/09

How do forests shape our water security? Why do rivers need to flow? And what happens to fish, turtles and gharials when dams shut off water?In this episode, host Veena Srinivasan speaks with Jagdish Krishnaswamy to explore the science that connects hydrology, ecology, and the people who depend on India’s rivers and landscapes. From the Western Ghats to the Himalayas, from springs to large reservoirs, this episode dives into decades of pioneering field research, where data collection meets

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72:50

Creating Space for Water Collaboration with Henk Ovink

The Water Data Podcast ·

2025/11/25

In this episode, host Veena Srinivasan speaks with Henk Ovink who is often called the world’s first “Water Diplomat” for a deep and wide-ranging conversation on trust, global cooperation, imagined redundancy, and the future of water governance around the world. Henk Ovink, joins host Veena Srinivasan on Season 2, Episode 9 of the Water Data Podcast. Henk has had an extraordinary career shaping water diplomacy and resilience - from serving as the Special Envoy for International Water Aff...

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