William M. F. Grey

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It is increasingly apparent that the future of the Amazon rainforest is under threat from both climate change and agricultural practices. Here we use a 13-year time series of (A)ATSR derived aerosol optical depth (AOD) measurements to examine the role of aerosols in the interaction between deforestation, biomass burning and drought over the Amazon. The(More)
It is becoming accepted that remote sensing can provide the spatial resolution and coverage and, increasingly, the temporal length of observations required to constrain and validate climate models, and to identify seasonal and interannual change on a global scale. Surface reflectance and aerosol optical depth (AOD) are both important parameters in climate(More)
We are producing a global dataset of aerosol properties from the ATSR-2 (Along-track Scanning Radiometer) and AATSR (Advanced Along-track Scanning Radiometer) missions. Together this represents a dataset spanning nearly 12-years from 1995 to the present. Atmospherically-corrected surface reflectance is also generated allowing quantitative analysis of the(More)
Atmospheric aerosol properties and land surface re-flectance can be retrieved from dual-angle AATSR measurements. In this paper a map of aerosol optical depth at 550 nm covering the Sahel and Southern Sahara region is presented. The map is a composite of thirty-two 500 km wide AATSR strip-lines acquired throughout March 2003. Verification is performed using(More)
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