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UID:seminar-15390@epss.ucla.edu
DTSTAMP:20260522T193452Z
DTSTART:20260513T153000Z
DTEND:20260513T163000Z
SUMMARY:Geophysics &#038\; Geology (245/287): Alonzo Olitt &#8211\; Deriving Trends of Seasonal Water Cycles in Europe using GRACE-FO and Elastic Displacements Measured by GPS
LOCATION:e.g.\, 3853 Slichter Hall
DESCRIPTION:Speaker: Alonzo Olitt

Affiliation: EPSS\, UCLA

Date: Monday\, May 13\, 2026

Time: 12:00 PM



Abstract
GPS measurements of the vertical motion of Earth’s surface along with gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) and GRACE-Follow On (GRACE-FO) missions provide valuable data to analyze changes in terrestrial water storage (TWS) as a function of position and time. These integrated datasets effectively quantify TWS variations across global and regional scales. Here we expand upon previous studies that have incorporated GPS and GRACE(-FO) to determine long-term water cycle changes in the United States\, by applying similar methodologies to provide one of the first looks into water cycle changes throughout Europe. Through applying a standard list of processing steps\, we filter out unwanted signals in GPS measurements of vertical ground motion and identify GPS stations in Europe measuring only elastic displacements. By analyzing these elastic GPS displacements alongside GRACE(-FO) inferred data\, we identify local and regional water cycle trends over the past 23 years\, offering crucial insights into Europe's hydrological evolution.
URL:https://epss.ucla.edu/geophysics-geology-245-287-alonzo-olitt-deriving-trends-of-seasonal-water-cycles-in-europe-using-grace-fo-and-elastic-displacements-measured-by-gps/
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