24 April 2014
I spent a little while looking at today’s images from NASA’s Terra and Aqua satellites with their amazing MODIS imager that sends back true colour images from an altitude of around 700 km. Here are a few things I spotted in just a short period of browsing this evening. Click any image for a much larger view.
Here is a view of just some Sahara sand blowing north into Greece and the Balkans.
and nearby, a nice view of the Nile Delta and the Suez Canal.
Now, notice the sea breeze front along the Florida coast. The land heats much faster than the water on a sunny day, and this warms the air above it, causing the pressure to drop. This allows cool air under higher pressure over the water to push inland. This cooler air is stable and the low-level temperature inversion keeps skies clear. Notice what happens around Mobile Bay… the sea-breeze goes MUCH farther inland??? Why?? My guess is that the shallow waters of Mobile Bay are much cooler and a south wind is allowing that cool air to penetrate much farther inland. You also have a large wetland area around the delta of the Tensaw River that keeps the air cooler.