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Archive: Apr 2011

Burn scars in Kansas and Oklahoma

A McIDAS false-color Red/Green/Blue (RGB) image (created using MODIS Bands 07/02/01) showed numerous “burn scars” (red-enhanced features) that remained from recent fire activity across eastern Kansas and eastern Oklahoma on 05 April 2011 (above). Previous blog posts displayed imagery of the fires as... Read More

Shear Instabilities over the Gulf of Alaska

Water vapor imagery from Monday 4 April 2011 over the Gulf of Alaska shows the development of what appears to be Kelvin-Helmholtz instability, an instability that occurs in regions of strong shear. In this case, the shear zone occurs within a gradient of moisture along the edge of a polar... Read More