NSDI for vietnam (1) 1. Spatial data has been collected
{"Image DocumentName": "NSDI for vietnam (1) 1. Spatial data has been collected", "Image ImageDescription": "a. National coordinates constructed based on National Geodetic Reference System VN-2000 connected to International GPS Service (IGS). b. Geodetic coordinates networks of the 0 and 1st and 2nd orders include over 2,000 control points covering whole country and major islands; the 3rd order (cadastral coordinates network) includes over 10,000 points to ensure at least 1 point per one commune. c. Digital topographic maps at the scales 1/1,000,000, 1/500,000, 1/250,000, 1/100,000 and 1/50,000 covering whole country were completed. Digital topographic maps at the scale 1/10,000 covering whole country and at the scale 1/5,000 and 1/2,000 covering urban areas are implementing (topographic map system includes the information layers: relief elevation, administrative boundary system, hydrologic system, transport system, biology cover, population distribution and economic infrastructure, and place name).", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}