Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why transform from PSAD56 to WGS84?

April 26, 2017transform wgs84

0

Posted

Why transform from PSAD56 to WGS84?

1 Answer

1

Posted

Short answer: because google maps uses WGS84 and original data is in PSAD56 Long answer: All the original data are in the provisional south american datum of 1956. The national cartographic institute in Ecuador (map producers, Instituto Geográfico Militar http://www.igm.gov.ec/) uses this datum, the sattelite images and air photo’s are georeferenced in the PSAD 56 and for the field work (tracks, routes, poi’s) this datum is used. World Geodetic System 1984 WGS-84 is the reference system used by the Global Positioning System. It is also used for google maps.