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Monitoring Earths ice sheets from space Andrew Shepherd School of Geosciences, Edinburgh.

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Presentation on theme: "Monitoring Earths ice sheets from space Andrew Shepherd School of Geosciences, Edinburgh."— Presentation transcript:

1 Monitoring Earths ice sheets from space Andrew Shepherd School of Geosciences, Edinburgh

2 Monitoring Earths ice sheets from space Climate change Satellite observations Ice Sheets and Sea level

3 Monitoring Earths ice sheets from space Climate change

4 Monitoring Earths ice sheets from space Slow climate change Climate Change Mt Kilimanjaro, 1993

5 Monitoring Earths ice sheets from space Slow climate change Climate Change Mt Kilimanjaro, 2000

6 Monitoring Earths ice sheets from space Abrupt climate change Sea level contribution of Antarctica & GreenlandClimate Change

7 Monitoring Earths ice sheets from spaceClimate Change Abrupt climate change Larsen Ice Shelf, 2002

8 Monitoring Earths ice sheets from space Abrupt climate change Larsen embayment, 2005 Climate Change

9 Monitoring Earths ice sheets from space Domack et al., 2005 Climate Change Abrupt climate change Larsen sea bed, 2005

10 Monitoring Earths ice sheets from space IPCC, 2001 IPCC Assessment reports (1990, 1995, 2001) Global warming 0.6  C rise since 1900 Climate Change

11 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

12 Monitoring Earths ice sheets from space Thermal expansion Glaciers & ice caps Greenland Antarctica Measured sea level 1961-2003 Climate Change 1993-2003

13 Monitoring Earths ice sheets from spaceClimate Change

14 Monitoring Earths ice sheets from spaceClimate Change

15 Monitoring Earths ice sheets from space Satellite observations

16 Monitoring Earths ice sheets from space AltimetryInterferometryGravimetry Monitoring Earths ice sheets from space

17 Satellite observations Altimetry

18 Monitoring Earths ice sheets from space Mass change from volume change Satellite observations Altimetry

19 Monitoring Earths ice sheets from spaceSatellite observations Interferometry

20 Monitoring Earths ice sheets from spaceSatellite observations Interferometry

21 Monitoring Earths ice sheets from space Mass change from glacier flow Satellite observations Interferometry

22 Monitoring Earths ice sheets from spaceSatellite observations Gravimetry

23 Monitoring Earths ice sheets from space Mass change from orbit change Satellite observations Gravimetry

24 Monitoring Earths ice sheets from space Sea level contribution

25 Monitoring Earths ice sheets from space 343 km 3 ~ 1mm global sea level = 1 km Sea level 1 km 3 = 270 pints per person =

26 Monitoring Earths ice sheets from space Greenland

27 Monitoring Earths ice sheets from spaceGreenland 0.0 to 0.6 mm per year

28 Monitoring Earths ice sheets from spaceGreenland

29 Monitoring Earths ice sheets from space Antarctica

30 Monitoring Earths ice sheets from spaceAntarctica -0.1 to +0.4 mm per year

31 Monitoring Earths ice sheets from spaceAntarctica

32 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

33 Monitoring Earths ice sheets from space UK today Summary

34 Monitoring Earths ice sheets from space UK today No Polar Ice Sheets Summary


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