Satellite stereo pointclouds of the Yasman and Vakhsh Valleys, Tajikistan

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Dataset Information

This data was collected to search for surface ruptures of the 1949 Mw7.6 Khait Earthquake. It is a 232 km2 area of Worldview-3 imagery which has been processed to create an elevation pointcloud. The area encompasses the northern slope of the Yasman Valley, the town of Khait, the Khait Landslide, triggered by the 1949 earthquake. The point cloud was derived by applying the NASA Ames Stereo Pipeline toolkit. These worldview footprints are labelled P00X where X=1,2,3,4. Also included is a footprint derived from Pleiades stereo imagery 174km2 on the Vakhsh Fault covering near vertical ruptures higher up the valley side. This was derived using Agisoft Metashape Pro v1.6

opentopoID: OTDS.072025.32642.1
DOI: https://doi.org/10.5069/G9GH9G5W
Platform: Structure from Motion / Photogrammetry
Data Format: Point Cloud
Dataset Acknowledgement: N/A - Acknowledgement Guidance
Dataset Citation: Johnson, B. (2025). Satellite stereo pointclouds of the Yasman and Vakhsh Valleys, Tajikistan. Distributed by OpenTopography. https://doi.org/10.5069/G9GH9G5W. Accessed: 2026-06-04
Survey Date: 06/01/2020 - 10/01/2021
Survey Area: 458.19 km2
Publication Date: 07/21/2025
Total Number of Points: 1,523,487,780 pts
Point Density: 3.33 pts/m2
Coordinates System:
Horizontal: WGS 84 / UTM zone 42N [EPSG: 32642]

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Spatial Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     p001_pc.laz     1.14 GB     367,111,350     95,219,517     3.86         File Metadata    
SpatialReference: 
PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.26534166476562, 70.91931881903761, 3221.769128)
South-West (Lat, Lon, Elevation): (39.168727425566, 70.76182384135684, 1534.893705)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (665580.8805, 4347978.157)
South-West (X, Y): (652201.3237, 4336978.978)

Classifications:
Class 0 (Created, never classified)367,111,350
2     p002_pc.laz     711.83 MB     188,816,595     48,189,026     3.92         File Metadata    
SpatialReference: 
PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.21835375735032, 70.71401666838702, 3692.418827)
South-West (Lat, Lon, Elevation): (39.16538743898244, 70.561335702668, 1947.519655)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (647966.9243, 4342407.598)
South-West (X, Y): (634886.9025, 4336290.949)

Classifications:
Class 0 (Created, never classified)188,816,595
3     P003.laz     1.71 GB     262,481,427     93,552,483     2.81         File Metadata    
SpatialReference: 
PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.268511824391524, 71.03442843423763, 3912.548622)
South-West (Lat, Lon, Elevation): (39.176831060809164, 70.89343502199445, -221.5297624)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (675504.3658, 4348546.976)
South-West (X, Y): (663553.0517, 4338107.535)

Classifications:
Class 0 (Created, never classified)262,481,427
4     P004.laz     1.99 GB     314,174,098     29,908,584     10.5         File Metadata    
SpatialReference: 
PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.22802808834509, 70.77532309148893, 3494.129054)
South-West (Lat, Lon, Elevation): (39.170047635597214, 70.69764858062356, 1717.106647)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (653238.6528, 4343583.248)
South-West (X, Y): (646654.2383, 4337019.749)

Classifications:
Class 0 (Created, never classified)314,174,098
5     pleiades_segment_1_utm_42N.laz     1017.04 MB     205,284,946     98,882,431     2.08         File Metadata    
SpatialReference: 
COMPD_CS["WGS 84 / UTM zone 42N + unknown",PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.17089308625289, 71.41031643431761, 3989.9)
South-West (Lat, Lon, Elevation): (39.08418500598313, 71.27601645724799, 1977.715)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (708223.079, 4338508.369)
South-West (X, Y): (696861.23, 4328584.612)

Classifications:
Class 0 (Created, never classified)205,284,946
6     pleiades_segment_2_utm_42N.laz     938.54 MB     185,619,364     92,438,024     2.01         File Metadata    
SpatialReference: 
COMPD_CS["WGS 84 / UTM zone 42N + unknown",PROJCS["WGS 84 / UTM zone 42N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",69],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32642"]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (39.1764734773237, 71.5107667643964, 4198.212)
South-West (Lat, Lon, Elevation): (39.08881312244986, 71.3959369740059, 2167.614)

Projected Coordinates (X, Y) - EPSG:32642
North-East (X, Y): (716884.764, 4339363.333)
South-West (X, Y): (707221.276, 4329365.094)

Classifications:
Class 0 (Created, never classified)185,619,364
  Summary 7.44 GB     1,523,487,780     458,190,063     3.33      
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