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Remote Sensing Observations of Moder...

Sutterley, Tyler Clark.

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Remote Sensing Observations of Modern-Day Regional Ice Sheet Change.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Remote Sensing Observations of Modern-Day Regional Ice Sheet Change./
作者:	Sutterley, Tyler Clark.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
面頁冊數:	132 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-10(E), Section: B.
Contained By:	Dissertation Abstracts International77-10B(E).
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10117008
ISBN:	9781339784113

Remote Sensing Observations of Modern-Day Regional Ice Sheet Change.
Sutterley, Tyler Clark.

Remote Sensing Observations of Modern-Day Regional Ice Sheet Change. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 132 p.

Source: Dissertation Abstracts International, Volume: 77-10(E), Section: B.

Thesis (Ph.D.)--University of California, Irvine, 2016.

This item is not available from ProQuest Dissertations & Theses.

The Earth's great ice sheets are losing mass at accelerating levels, rising global sea levels and posing a significant problem to society. The ice sheets contain enough water to raise sea level by 65 meters, and are the largest reservoirs of freshwater on the planet. Measurements of current ice sheet mass change are important in order to assess their current contribution to sea level rise, and to constrain future projections. There are three general approaches for measuring the current mass balance of ice sheets: the gravimetric method using time-variable gravity measurements, the altimetric method combining surface elevation change measurements with estimates of the density change, and the mass budget method combining rates of mass input from snow and rain with rates of mass output from meltwater runoff, ice discharge and other processes. In this dissertation, we use multiple independent measurements to assess the current uncertainties in mass balance efforts, and to create new estimates of current ice sheet mass change. We investigate key regions of Antarctica, where changes in the ice sheet velocity structure have led to accelerating mass losses. We compile new assessments of the mass change of the Greenland ice sheet, where increased rates of surface runoff and losses from ice sheet dynamics have dramatically shifted the mass balance regime. The work helps constrain estimation errors from GRACE, provides new constraints to ice sheet and glacial isostatic adjustment models, and helps improve our general understanding of the mechanisms driving current ice sheet mass change.

ISBN: 9781339784113Subjects--Topical Terms:

535228
Geophysics.

Remote Sensing Observations of Modern-Day Regional Ice Sheet Change.
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