THE BEST SIDE OF CONTOUR SURVEY IN DHAKA

In particular, isobathytherms are strains displaying depths of h2o with equal temperature, isohalines show traces of equivalent ocean salinity, and isopycnals are surfaces of equal h2o density.An isohyet or isohyetal line (from Historic Greek ὑετός (huetos) 'rain') is usually a line on a map signing up for details of equivalent rainfall in a

Early hydrographic surveys consisted of depths measured by sounding pole and hand guide line, with positions based on three-position sextant fixes to mapped reference factors. Lead lines ended up ropes, or traces, with depth markings and direct weights connected.Horizontal positions (latitude and longitude) are recorded using Differential World wid