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Datums and Map Projections for-Remote-Sensing GIS and Surveying

datums, map projections, geospatial analysis, remote sensing, GIS, surveying

Datums: The Foundation of Geospatial Reference Systems

geodetic datums, horizontal datums, vertical datums, geodetic reference frames

1. Definition and Purpose of Datums in Geospatial Analysis

reference points, coordinate systems, spatial relationships

2. Commonly Used Horizontal Datums: NAD83 vs WGS84

North American Datum 1983 (NAD83), World Geodetic System 1984 (WGS84), differences between NAD83 and WGS84

3. Vertical Datums: Understanding Height References in Geospatial Analysis

orthometric height systems, geoid models, ellipsoidal heights

The Role of Map Projections in Remote Sensing and GIS Applications

map projections types, coordinate systems transformations,

1. Introduction to Map Projections: Transforming 3D Earth onto a 2D Plane

cylindrical projections, conic projections , azimuthal projections

2. Commonly Used Map Projections for Remote Sensing and GIS Applications

Mercator projection , Lambert Conformal Conic projection, Universal Transverse Mercator (UTM) projection

3. Considerations When Choosing a Map Projection for Surveying and GIS Analysis

scale distortion, area distortion, shape distortion, suitable projections for different regions

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