I'm trying to display a number of sea level scenarios to discuss landscape differences across time. I've created a CTM of the region now I need to display sea level at a number of reduced levels (e.g. -50m).
I've already tried extract by attribute using "value <=-50" which produces a number of error problems which seem to be related to the GDB, but I can't get round them. Could extract by mask be better?
Does anyone have a simpler or better way? In an ideal scenario I would like to display the final model with terrain changes displayed for the terrestrial data but the sea can be extracted as no data and displayed blue. However it can simply be a blue green display just showing coastline if that is the best way using ArcMap 10.3, Windows 8.