Polar-Orbiting satellites flying over Florida viewed remarkable changes in water quality from before and after the passage of Hurricane Ian. Imagery from Suomi-NPP, for example, from 25 September and 30 September, toggled below (imagery derived from the VIIRS Today website), shows a large increase in turbidity in the Gulf (and over the Atlantic... Read More
GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed the widespread coverage of ice across Lake Erie on 31 January 2022. Surface winds were generally light across the region, minimizing wind stress on the pack ice. A careful inspection of the imagery revealed some straight pathways cut through the ice by US... Read More
A MODIS-based true-color cloud-free image, above, from SSEC’s Real Earth (link) shows a distinct lack of snow cover — for early November!!! — over the USA and Canada. These BRDF (Bidirectional Reflectance Distribution Function) fields account for sun angle, viewing angle and surface type; data over the past 16 days are used in... Read More
GOES-16 (GOES-East) “Red” Visible (0.64 µm) images (above) showed the wind-driven consolidation of ice within Green Bay during the 03 March – 04 March 2021 period. Northerly winds in the wake of a cold frontal passage on 03 March led to the fracturing of land-fast ice in the far northern portion of Green Bay... Read More
