Posts From GIS Resources
Maximum Value Composite Images (MVC’s): A solution for Cloudy Image to calculate NDVI
When the satellite views an area at any one time, a large part of the image may be cloud, which has a very low NDVI (approximately 0.002). This gives no
Total Station And Its Applications In Surveying
1. Introduction The Total station is designed for measuring of slant distances, horizontal and vertical angles and elevations in topographic and geodetic works, tachometric surveys, as well as for solution
Possible Applications of GPS
Since GPS is all-weather, real-time, continuously available, economic and very precise positioning technique, almost unlimited possibilities are opened up for its use in geodesy, surveying, navigation and related fields, including
GPS Field Observation and Data Processing
1. Planning of GPS observation Before starting a GPS Survey Campaign, the following points should be kept in mind. 1.1. Pre Survey planning:- A satellite “sky plot” or visibility chart
GPS Surveying Techniques
There are wide variety of GPS applications, which is matched by a similar diversity of user equipment and techniques. Nevertheless, the most fundamental classification system for GPS technique is
Fundamentals of GPS Signal And Data
1. GPS Signal Characteristics 1.1. Signal structure GPS satellite transmits signals at two frequencies, designated L1 and L2 on which three binary modulations are impressed. The C/A- code, the
Introduction to GPS
GLOBAL POSITIONING SYSTEM 1. Introduction The NAVSTAR Global Positioning System (GPS) is a satellite-based radio positioning and time – transfer system designed, financed, deployed and operated by US Department of
Fundamemtals of Hyperspectral Remote Sensing
Introduction Hyperspectral remote sensing is the science of acquiring digital imagery of earth materials in many narrow contiguous spectral bands. Hyperspectral sensors or imaging spectrometers measure earth materials and produce
Hyperspectral Remote Sensing
Hyperspectral remote sensing is the science of acquiring digital imagery of earth materials in many narrow contiguous spectral bands. Hyperspectral sensors or imaging spectrometers measure earth materials and produce complete spectral
Snow Cover Mapping using Satellite Remote Sensing Data
Having accurate estimations of snow cover characteristics during the snow-melt season is indispensable for efficient hydrological modeling and snow-melt runoff forecasting. Direct measurements of snow depth at a single station
