Category Archives: Climate Change

JAXA Launches GCOM-W1

The Japanese Aerospace Exploration Agency (JAXA) has successfully launched the GCOM-W1 satellite. GCOM-W1 will undertake orbital manoeuvres for 45 days to place it in constellation with the A-train satellites. GCOM-W1 is carrying the Advanced Microwave Scanning  Radiometer 2 (AMSR-2): a passive … Continue reading

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PhD thesis on the remote sensing of the Greenland Ice Sheet

Malin Johansson defended her thesis on the remote sensing of the Greenland Ice Sheet on April 20th. Her thesis is titled: Remote sensing of supra-glacial lakes on the west Greenland Ice Sheet ABSTRACT The Greenland Ice Sheet is the largest … Continue reading

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Chaos in the US Weather Satellite Communities

The Pentagon has canceled the next-generation weather satellite program Defense Weather Satellite System (DWSS), writes Space News. DWSS was to deliver weather and  environmental  mapping data to support the US military. DWSS was canceled following the Senate Appropriations Committee’s removal … Continue reading

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Africa’s Forthcoming Green Revolution (?)

I read an interesting article in the Financial Times today on Kofi Annan’s campaign promoting a new Green Revolution for Africa. There is a pervasive spectre of [highly damaging] climate change. The article is only available to registered users I am … Continue reading

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Cyclone occurrence and frequency in East Antarctica

I have been looking into the effect of weather systems, cyclones, on surface processes in Antarctica. Unfortunately, weather and climate data are not always that readily available. Having read some papers by Dr Petteri Uotila and colleagues at the University … Continue reading

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Observations of supra-glacial lakes in west Greenland using winter wide-swath synthetic aperture radar

A.MALIN Johansson† and IAN A. Brown This paper is accepted for publication in Remote Sensing Letters. Abstract Melt water gathered in supra-glacial lakes on the Greenland ice sheet contributes to reduced basal friction by input of water from the surface … Continue reading

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Firn line mapping in winter SAR data

Firn lines, like end of summer snow lines, are used as a proxy of glacier mass balance. The snow line, or long term firn line, is related to the Equilibrium Line Altitude (ELA), a useful climate indicator. Mapping the position … Continue reading

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