… RTK, which achieves performances in the number of some centimeters, is a technique generally used in surveying applications. Division of Aid and Rehabilitation: DEM of catastrophe susceptible places can help in examining the problems of disaster. Utilization of topographical maps and DEM will relieve the selection of relief distribution https://contoursurvey38382.timeblog.net/68173478/the-2-minute-rule-for-contour-survey