Sierra Negra Volcano (TIR Flight 3): Galápagos, Ecuador, October 22 2018

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Dataset Information

Point cloud and temperature map of Sierra Negra Volcano (Isla Isabela, Galápagos Archipelago, Ecuador). Coverage includes two vents from Fissure 1 of the June 26, 2018 eruption of Sierra Negra and lava flows sourced from these vents. Point cloud created using Agisoft Metashape (v.1.6.1), temperature map created with additional processing in Matlab and ArcGIS. This data is used in the manuscript “Mapping and classification of volcanic deposits using multi-sensor Unoccupied Aerial Systems”, currently under review at Remote Sensing of Environment. Images taken on October 22, 2018 using a DJI Zenmuse XT thermal camera on a DJI Matrice 210 UAS. 443 total images (available upon request)

opentopoID: OTDS.092020.32715.4
DOI: https://doi.org/10.5069/G957196P
Platform: Structure from Motion / Photogrammetry
Data Format: Point Cloud, Raster
Dataset Acknowledgement: Data collection was supported by NSF EAR Postdoctoral Fellowship Award #1725768 and a WHOI Independent Research and Development Grant (PI: Adam Soule). Field work in Ecuador was conducted in cooperation with the Instituto Geofísico, the Parque Nacional Galápagos, and the Charles Darwin Research Station. Marco Córdova and Silvia Vallejo Vargas of Instituto Geofísico, Adam Soule and Meghan Jones of Woods Hole Oceanographic Institute, and Einat Lev of Lamont-Doherty Earth Observatory assisted with data collection at Sierra Negra.
Dataset Citation: Carr, B. (2020). Sierra Negra Volcano (TIR Flight 3): Galápagos, Ecuador, October 22 2018. Distributed by OpenTopography. https://doi.org/10.5069/G957196P. Accessed: 2025-05-11
Survey Date: 10/22/2018
Survey Area: 0.63 km2
Publication Date: 09/09/2020
Total Number of Points: 4,895,819 pts
Point Density: 7.73 pts/m2
Coordinates System:
Horizontal: WGS 84 / UTM zone 15S [EPSG: 32715]

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Spatial Extent
Point Cloud Extent Raster Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     Galapagos_TI_F3.laz     31.32 MB     4,895,819     633,058     7.73         File Metadata    
SpatialReference: 
COMPD_CS["unknown",PROJCS["WGS 84 / UTM zone 15S",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",-93],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","32715"]],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): (-0.7786666802, -91.11147965, 1011.18)
South-West (Lat, Lon, Elevation): (-0.7852318268, -91.12073528, 883.51)

Projected Coordinates (X, Y) - EPSG:32715
North-East (X, Y): (710163.73, 9913886.8)
South-West (X, Y): (709133.67, 9913161.22)

Classifications:
Class 0 (Created, never classified)4,895,819
    Raster Data
  File Name Size Resolution Dimensions Layer Type  
1     Galapagos_Temp3.img     68.29 MB     0.2 meter     4730 x 3745                 File Metadata    
SpatialReference Not available.

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (-0.7785565042735756, -91.11179459569918)
South-West (Lat, Lon): (-0.785333081842468, -91.12028919837415)

Projected Coordinates (X, Y) - EPSG:32715
North-East (X, Y): (710129.0, 9913899.0)
South-West (X, Y): (709183.0, 9913150.0)
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