22-27 September 2019
Trade Fairs and Congress Center (FYCMA)
Europe/Madrid timezone

Climate Change Effects on Groundwater: Expectations and Observations

24 Sep 2019, 10:00
30m
Trade Fairs and Congress Center (FYCMA)

Trade Fairs and Congress Center (FYCMA)

Av. de José Ortega y Gasset, 201 29006 Malaga, Spain
Oral Topic 2 - Groundwater and climate change Plenary

Speaker

Matthew Rodell (NASA Goddard Space Flight Center)

Description

Groundwater storage fluctuates more slowly than the near-surface, non-frozen components of terrestrial water storage (soil moisture and surface waters), but because of its larger range of variability it is often more indicative of long period climate changes. Hindering groundwater’s use as an indicator of water cycle and climate variability is the paucity of long term, continuous measurement records that are publicly available. Further, it is challenging to distinguish climate change impacts on groundwater levels from natural variability and direct anthropogenic effects. In this presentation we will review the current state of understanding of how climate change is influencing or could potentially influence groundwater recharge and storage. We will also quantify and attribute apparent trends in terrestrial water storage observed worldwide by the NASA/German Gravity Recovery and Climate Experiment (GRACE) satellite mission during 2002-2016. Many of the apparent trends were dominated by groundwater storage variations, and climate change appears to be a factor in some cases. In particular, water storage increases in northern Eurasia and Canada and decreases in northern Africa and southern Asia are consistent with climate model predictions.

Primary authors

Matthew Rodell (NASA Goddard Space Flight Center) Prof. James Famiglietti (University of Saskatchewan) Dr David Wiese (NASA Jet Propulsion Laboratory) Dr John Reager (NASA Jet Proplusion Laboratory) Ms Hiroko Beaudoing (University of Maryland) Dr Felix Landerer (NASA Jet Propulsion Laboratory) Dr Min-Hui Lo (National Taiwan University)

Presentation Materials

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