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Groundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Models

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dc.contributor.authorKhorrami, Mohammaden
dc.contributor.authorShirzaei, Manoochehren
dc.contributor.authorGhobadi-Far, Khosroen
dc.contributor.authorWerth, Susannaen
dc.contributor.authorCarlson, Graceen
dc.contributor.authorZhai, Guangen
dc.coverage.cityMexico Cityen
dc.coverage.countryMexicoen
dc.date.accessioned2023-10-10T13:27:15Zen
dc.date.available2023-10-10T13:27:15Zen
dc.date.issued2023-03en
dc.description.abstractGroundwater withdrawal can cause localized and rapid poroelastic subsidence, spatially broad elastic uplift of low amplitude, and changes in the gravity field. Constraining groundwater loss in Mexico City, we analyze data from the Gravity Recovery and Climate Experiment and its follow-on mission (GRACE/FO) and Synthetic Aperture Radar (SAR) Sentinel-1A/B images between 2014 and 2021. GRACE/FO observations yield a groundwater loss of 0.85-3.87 km(3)/yr for a region of similar to 300 x 600 km surrounding Mexico City. Using the high-resolution interferometric SAR data set, we measure >35 cm/yr subsidence within the city and up to 2 cm/yr of uplift in nearby areas. Attributing the long-term subsidence to poroelastic aquifer compaction and the long-term uplift to elastic unloading, we apply respective models informed by local geology, yielding groundwater loss of 0.86-12.57 km(3)/yr. Our results suggest Mexico City aquifers have been depleting at faster rates since 2015, exacerbating the socioeconomic and health impacts of long-term groundwater overdrafts.en
dc.description.notesThis work was partially funded by the National Aeronautics and Space Administration (NASA) Grant 80NSSC21K0061. M.S. and M.K. contributions are supported by DOE Grant DE-SC0019307. The authors appreciate the Geological Society of America's support (hydrogeology division).en
dc.description.sponsorshipNational Aeronautics and Space Administration (NASA) [80NSSC21K0061]; DOE [DE-SC0019307]; Geological Society of Americaen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1029/2022GL101962en
dc.identifier.eissn1944-8007en
dc.identifier.issn0094-8276en
dc.identifier.issue5en
dc.identifier.othere2022GL101962en
dc.identifier.urihttp://hdl.handle.net/10919/116439en
dc.identifier.volume50en
dc.language.isoenen
dc.publisherAmerican Geophysical Unionen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectporoelastic subsidenceen
dc.subjectupliften
dc.subjectInSARen
dc.subjectGRACE-derived total water storageen
dc.subjectgroundwater mass lossen
dc.subjectelastic load modelsen
dc.titleGroundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Modelsen
dc.title.serialGeophysical Research Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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