I am brazilian's student of oceanography and I have a question about seamat's gpan subroutine. In this subroutine it's calculated the Geopotential Anomaly as the integral of svan(Specific Volume Anomaly) from the sea surface to the bottom. Thus RELATIVE TO SEA SURFACE.
But, I need to calculate relative to 1000m deeph.
How do I do it?
Please, if anybody could help me I need this until monday!
Thanks and by!