Details zur Publikation
Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.scitotenv.2019.135845
Volltext Akzeptiertes Manuskript
Titel (primär) Using GRACE to quantify the depletion of terrestrial water storage in Northeastern Brazil: The Urucuia Aquifer System
Autor Gonçalves, R.D.; Stollberg, R.; Weiss, H. ORCID logo ; Chang, H.K.
Quelle Science of the Total Environment
Erscheinungsjahr 2020
Department ENVINF
Band/Volume 705
Seite von art. 135845
Sprache englisch
Keywords Water storage;GRACE;Subregional scale,Drought;São Francisco river;Brazilian Cerrado
Abstract Covering a plateau area of approximately 125,000 km2, the Urucuia Aquifer System (UAS) represents a national strategic water resource in the drought-stricken Northeastern part of Brazil. Variations in terrestrial water storage (TWS) extracted using a three-model-ensemble from the Gravity Recovery and Climate Experiment (GRACE) mission showed a negative balance equal to water stress. Monthly GRACE-derived water storage changes from 2002 to 2014 were compared with those derived from an independent hydrologic water balance of the region using in situ measurements and estimated evapotranspiration rates. Trend analyses revealed a TWS depletion rate of 6.5 ± 2.6 mm yr−1, but no significant decline in precipitation as observed from available data records. Water storage depletion was found to be driven by anthropogenic impacts rather than by natural climatic variability. The obtained results demonstrate that GRACE is able to adequately capture water storage changes at the subregional scale, particularly during dry seasons.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=22772
Gonçalves, R.D., Stollberg, R., Weiss, H., Chang, H.K. (2020):
Using GRACE to quantify the depletion of terrestrial water storage in Northeastern Brazil: The Urucuia Aquifer System
Sci. Total Environ. 705 , art. 135845 10.1016/j.scitotenv.2019.135845