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Tracking Groundwater with the Ambient Seismic Field.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Tracking Groundwater with the Ambient Seismic Field./
作者:	Clements, Timothy.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	151 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-06, Section: B.
Contained By:	Dissertations Abstracts International83-06B.
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28716616
ISBN:	9798496525459

Tracking Groundwater with the Ambient Seismic Field.
Clements, Timothy.

Tracking Groundwater with the Ambient Seismic Field. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 151 p.

Source: Dissertations Abstracts International, Volume: 83-06, Section: B.

Thesis (Ph.D.)--Harvard University, 2021.

This item must not be sold to any third party vendors.

Aquifers are vital groundwater reservoirs for residential, agricultural, and industrial activities worldwide. Tracking their state with high temporal and spatial resolution is critical for water resource management at the regional scale yet is rarely achieved from a single dataset. Here, we show that variations in groundwater levels can be mapped in space and time using perturbations in seismic velocity (dv/v). We employ the computing language Julia and cloud computing resources to make daily measurements of dv/v across California from the cross-correlation and auto-correlation of the ambient seismic field. We compare our results to estimates of groundwater from groundwater wells, precipitation and satellite measurements. dv/v reproduces the groundwater level changes that are marked by the multi-year depletions and rapid recharges typical of California's cycles of droughts and floods. dv/v correlates spatially with vertical surface displacements and deformation measured with GPS and the GRACE satellite.

ISBN: 9798496525459Subjects--Topical Terms:

535228
Geophysics.
Subjects--Index Terms:

Cloud computing resources

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300 $a 151 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-06, Section: B.
500 $a Advisor: Denolle, Marine A.
502 $a Thesis (Ph.D.)--Harvard University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Aquifers are vital groundwater reservoirs for residential, agricultural, and industrial activities worldwide. Tracking their state with high temporal and spatial resolution is critical for water resource management at the regional scale yet is rarely achieved from a single dataset. Here, we show that variations in groundwater levels can be mapped in space and time using perturbations in seismic velocity (dv/v). We employ the computing language Julia and cloud computing resources to make daily measurements of dv/v across California from the cross-correlation and auto-correlation of the ambient seismic field. We compare our results to estimates of groundwater from groundwater wells, precipitation and satellite measurements. dv/v reproduces the groundwater level changes that are marked by the multi-year depletions and rapid recharges typical of California's cycles of droughts and floods. dv/v correlates spatially with vertical surface displacements and deformation measured with GPS and the GRACE satellite.
590 $a School code: 0084.
650 4 $a Geophysics. $3 535228
650 4 $a Water resources management. $3 794747
653 $a Cloud computing resources
653 $a Groundwater reservoirs
653 $a Ambient seismic field
690 $a 0373
690 $a 0467
690 $a 0595
710 2 $a Harvard University. $b Earth and Planetary Sciences. $3 3168947
773 0 $t Dissertations Abstracts International $g 83-06B.
790 $a 0084
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28716616