Differences in geographical coordinates of minefields in Colombia according to their acquisition method

The scourge of explosive devices such as landmines, improvised and unexploded ordnance, a product armed conflicts in several countries around the world, has set great precedent violation fundamental human rights. In Colombia, efforts government NGOs to reduce their effects have succeeded clearing minefields more than 8 million square metres destroying 7000 devices. standards for finding (Confirmed Hazardous Areas - CHAs) include determination geographical coordinates (Latitude Longitude) based on DATUM WGS84. However, precision or accuracy location these according capture method been little studied analysed, so this research investigates three methods capturing simulated minefield (CHAs), interesting results: (1) static with dual frequency GNSS receivers presented standard deviation 4 millimetres corroborating high accuracy, by Stop Go it ranged between 19 respect mean showing also control simple radiation confirmed obtaining positional difference 4.62 centimetres, (2) obtained navigator yielded 219.28 very similar that (3) azimuths distances without correction magnetic declination 235.73; when corrected declination, gave 53. 32, which showed reliability long is applied starting from point sufficient coordinate accuracy.