Point clouds derived from satellite imagery, Turkmenistan, 2013-2014

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Dataset Information

These datasets cover the Main Köpetdag (Kopeh Dagh) Fault near Serdar in Turkmenistan. The point cloud data were derived via Agisoft Metashape from data acquired by SPOT-6 bi-stereo optical satellite imagery.

opentopoID: OTDS.102023.32640.4
DOI: https://doi.org/10.5069/G9Z31WWF
Platform: Structure from Motion / Photogrammetry
Data Format: Point Cloud
Dataset Acknowledgement: N/A - Acknowledgement Guidance
Dataset Citation: Walker, R., Tsai, C. (2023). Point clouds derived from satellite imagery, Turkmenistan, 2013-2014. Distributed by OpenTopography. https://doi.org/10.5069/G9Z31WWF. Accessed: 2025-06-22
Survey Date: 10/05/2013 - 10/04/2014
Survey Area: 1,874.12 km2
Publication Date: 10/24/2023
Total Number of Points: 192,073,440 pts
Point Density: 0.1 pts/m2
Coordinates System:
Horizontal: WGS 84 / UTM zone 40N [EPSG: 32640]

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3D Point Cloud Viewer


Spatial Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     Ashkabad1_utm40n.laz     437.74 MB     73,750,431     757,599,456     0.1         File Metadata    
SpatialReference: 
COMPD_CS["unknown",PROJCS["WGS 84 / UTM zone 40N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",57],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","32640"]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1.0,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.09079965939364, 56.570946905864794, 1316.5)
South-West (Lat, Lon, Elevation): (38.73439669485009, 55.888914847314645, -118.8)

Projected Coordinates (X, Y) - EPSG:32640
North-East (X, Y): (462895.0, 4326940.4)
South-West (X, Y): (403429.2, 4287888.9)

Classifications:
Class 0 (Created, never classified)73,750,431
2     Ashkabad2_utm40n.laz     705.19 MB     118,323,009     1,116,520,886     0.11         File Metadata    
SpatialReference: 
COMPD_CS["unknown",PROJCS["WGS 84 / UTM zone 40N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",57],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","32640"]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1.0,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (38.922163288835954, 57.01959704320635, 1760.5)
South-West (Lat, Lon, Elevation): (38.49541589170445, 56.4233171286653, -25.1)

Projected Coordinates (X, Y) - EPSG:32640
North-East (X, Y): (501698.8, 4308139.2)
South-West (X, Y): (449711.1, 4260942.3)

Classifications:
Class 0 (Created, never classified)118,323,009
  Summary 1.12 GB     192,073,440     1,874,120,342     0.1      
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