Problem
Read the matlab file MABelev.mat which contains the elevation for the Middle Atlantic Bight region of the eastern US at 5 minute intervals (MABelev) along with latitude (MABlat) and longitude (MABlon) arrays.
Write a script to read the elevation data set. Create an RGB image the same size as the elevation array. Color all points above sea level (elev > 0) black and color all points below sea level blue. Also create 3 other images for the case that sea level is 1 m and 5 m above as well as 5 m below current sea level.