monitoring earths ice sheets from space andrew shepherd school of geosciences, edinburgh
TRANSCRIPT
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Monitoring Earths ice sheets from space
Andrew Shepherd
School of Geosciences, Edinburgh
![Page 2: Monitoring Earths ice sheets from space Andrew Shepherd School of Geosciences, Edinburgh](https://reader035.vdocuments.site/reader035/viewer/2022070415/56649e715503460f94b6fd62/html5/thumbnails/2.jpg)
Monitoring Earths ice sheets from space
Climate change
Satellite observations
Ice Sheets and Sea level
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Monitoring Earths ice sheets from space
Climate change
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Monitoring Earths ice sheets from space
Slow climate change
Climate Change
Mt Kilimanjaro, 1993
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Monitoring Earths ice sheets from space
Slow climate change
Climate Change
Mt Kilimanjaro, 2000
![Page 6: Monitoring Earths ice sheets from space Andrew Shepherd School of Geosciences, Edinburgh](https://reader035.vdocuments.site/reader035/viewer/2022070415/56649e715503460f94b6fd62/html5/thumbnails/6.jpg)
Monitoring Earths ice sheets from space
Abrupt climate change
Sea level contribution of Antarctica & Greenland Climate Change
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Monitoring Earths ice sheets from space Climate Change
Abrupt climate change
Larsen Ice Shelf, 2002
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Monitoring Earths ice sheets from space
Abrupt climate change
Larsen embayment, 2005
Climate Change
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Monitoring Earths ice sheets from space
Domack et al., 2005
Climate Change
Abrupt climate change
Larsen sea bed, 2005
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Monitoring Earths ice sheets from space
IPCC, 2001
IPCC Assessment reports (1990, 1995, 2001)
Global warming
0.6 C rise since 1900
Climate Change
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Monitoring Earths ice sheets from space
IPCC, 2001
Global sea level rise
IPCC Assessment reports (1990, 1995, 2001)
15 cm rise since 1900
Climate Change
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Monitoring Earths ice sheets from space
Thermal expansion
Glaciers & ice caps
Greenland
Antarctica
Measured sea level
1961-2003Climate Change
1993-2003
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Monitoring Earths ice sheets from space Climate Change
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Monitoring Earths ice sheets from space Climate Change
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Monitoring Earths ice sheets from space
Satellite observations
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Monitoring Earths ice sheets from space
Altimetry Interferometry Gravimetry
Monitoring Earths ice sheets from space
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Monitoring Earths ice sheets from space Satellite observations
Altimetry
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Monitoring Earths ice sheets from space
Mass change from volume change
Satellite observations
Altimetry
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Monitoring Earths ice sheets from space Satellite observations
Interferometry
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Monitoring Earths ice sheets from space Satellite observations
Interferometry
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Monitoring Earths ice sheets from space
Mass change from glacier flow
Satellite observations
Interferometry
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Monitoring Earths ice sheets from space Satellite observations
Gravimetry
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Monitoring Earths ice sheets from space
Mass change from orbit change
Satellite observations
Gravimetry
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Monitoring Earths ice sheets from space
Sea level contribution
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Monitoring Earths ice sheets from space
343 km3 ~ 1mm global sea level
=
1 km
1 km
1 km
7 km
7 km
7 km
Sea level
1 km3= 270 pints per person
=
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Monitoring Earths ice sheets from space
Greenland
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Monitoring Earths ice sheets from space Greenland
0.0 to 0.6 mm per year
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Monitoring Earths ice sheets from space Greenland
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Monitoring Earths ice sheets from space
Antarctica
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Monitoring Earths ice sheets from space Antarctica
-0.1 to +0.4 mm per year
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Monitoring Earths ice sheets from space Antarctica
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Monitoring Earths ice sheets from space
Satellite observations reveal sudden and recent changes in ice sheet flow
Climate models do not include these processes
Sea level projections are therefore of limited value
Summary
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Monitoring Earths ice sheets from space
UK today
Summary
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Monitoring Earths ice sheets from space
UK today
No PolarIce Sheets
Summary