Satellite Image of the Day: October 16, 2004
(click here for previous images of the day from RUSMART)

NOAA's Hydrometeorologial Prediction Center (HPC) "Daily National Forecast" image shows a daily national weather prediction

Satellites: NOAA-15 and NOAA-17, part of NOAA's 850km-high (530 mile-high) Polar Orbiting satellites

The thermal effects of bodies of water
Bodies of water regulate temperature because they store heat during the day and then slowly release that heat during these cool fall evenings.
Water serves to regulate the temperature of the surrounding areas. The high heat capacity of the Atlantic Ocean, for example, serves to keep New England warmer than one might think for a place so far north (e.g. Montana).
In these two images, you can see the effects of smaller bodies of water (lakes and rivers). In the visible image, the lakes are seen in the early morning (around 8am). In the thermal image, the lakes are visible as being warmer than the surrounding land of the cool countryside.
Click on the images below for higher-resolution (~100k) versions.
 

False color view (visible wavelengths) Thermal view (infrared wavelengths)