Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W)
This dataset is associated with the article "Supraglacial Stream Sediment Variability on the Greenland Ice Sheet Over the 2019 Melt Season" submitted to the journal Remote Sensing of the Environment. The dataset includes digital elevation models (DEMs) and orthomosaic images of the Greenla...
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dataone:doi:10.18739/A2RN3087N 2024-06-03T18:46:51+00:00 Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) Sasha Leidman Ablation zone of the Greenland Ice Sheet in Southwest Greenland, ~2 km from the ice edge outside of Kangerlussuaq, Greenland. Colloquially known as Point 660. ENVELOPE(-51.0,-49.0,68.0,67.0) BEGINDATE: 2019-07-22T00:00:00Z ENDDATE: 2019-08-15T00:00:00Z 2022-08-23T22:30:51.792Z https://doi.org/10.18739/A2RN3087N unknown Arctic Data Center Greenland Ice Sheet UAV Supraglacial Streams Drone Digital Elevation Model Structure from Motion Ablation Zone Dataset dataone:urn:node:ARCTIC https://doi.org/10.18739/A2RN3087N 2024-06-03T18:18:39Z This dataset is associated with the article "Supraglacial Stream Sediment Variability on the Greenland Ice Sheet Over the 2019 Melt Season" submitted to the journal Remote Sensing of the Environment. The dataset includes digital elevation models (DEMs) and orthomosaic images of the Greenland Ice Sheet (spatial extent: 67.155 - 67.165 N, 49.986-50.000 W). DEMs and Orthomosaic images were produced from image collected with an 18-megapixel FC3610 camera mounted on a DJI Phantom 3 quadcopter UAV (July 22-August 11, 2019) or a 17-megapixel L1D-20c camera mounted on a Mavic 2 Pro quadcopter UAV (August 14-15, 2019). Images from the UAV were analyzed in Agisoft Metashape Pro v1.6.5, a Structure-from-Motion software program. High quality dense point clouds were georeferenced to the UTM (Universal Transverse Mercator) 22N projection using markers placed around the study site including orange plastic trays (0.35 x 0.25 meter (m)), orange panted rocks (~0.1 m diameter), and red tarps with black X's to demark the center point (1.5 x 1.5 m). Ground control point markers were geolocated using a UNAVCO Trimble R7 GNSS running in PPK (Post-Processed Kinematic) and corrected using a base station located ~2 kilometers (km) away on bedrock on the ice edge. DEMs and Orthomosaics were exported using the maximum resolution (0.003 - 0.013 m resolution). All images were collected within 2 hours of solar noon. Images were used to digitize the location of supraglacial stream shorelines within the catchment area and to analyze the distribution of sediment throughout the melt season to determine if changes in supraglacial streamflow effected sediment deposition and the absorption of solar radiation. Dataset Greenland Ice Sheet Kangerlussuaq Arctic Data Center (via DataONE) Center Point ENVELOPE(173.160,173.160,52.926,52.926) Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-51.0,-49.0,68.0,67.0) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Greenland Ice Sheet UAV Supraglacial Streams Drone Digital Elevation Model Structure from Motion Ablation Zone |
spellingShingle |
Greenland Ice Sheet UAV Supraglacial Streams Drone Digital Elevation Model Structure from Motion Ablation Zone Sasha Leidman Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
topic_facet |
Greenland Ice Sheet UAV Supraglacial Streams Drone Digital Elevation Model Structure from Motion Ablation Zone |
description |
This dataset is associated with the article "Supraglacial Stream Sediment Variability on the Greenland Ice Sheet Over the 2019 Melt Season" submitted to the journal Remote Sensing of the Environment. The dataset includes digital elevation models (DEMs) and orthomosaic images of the Greenland Ice Sheet (spatial extent: 67.155 - 67.165 N, 49.986-50.000 W). DEMs and Orthomosaic images were produced from image collected with an 18-megapixel FC3610 camera mounted on a DJI Phantom 3 quadcopter UAV (July 22-August 11, 2019) or a 17-megapixel L1D-20c camera mounted on a Mavic 2 Pro quadcopter UAV (August 14-15, 2019). Images from the UAV were analyzed in Agisoft Metashape Pro v1.6.5, a Structure-from-Motion software program. High quality dense point clouds were georeferenced to the UTM (Universal Transverse Mercator) 22N projection using markers placed around the study site including orange plastic trays (0.35 x 0.25 meter (m)), orange panted rocks (~0.1 m diameter), and red tarps with black X's to demark the center point (1.5 x 1.5 m). Ground control point markers were geolocated using a UNAVCO Trimble R7 GNSS running in PPK (Post-Processed Kinematic) and corrected using a base station located ~2 kilometers (km) away on bedrock on the ice edge. DEMs and Orthomosaics were exported using the maximum resolution (0.003 - 0.013 m resolution). All images were collected within 2 hours of solar noon. Images were used to digitize the location of supraglacial stream shorelines within the catchment area and to analyze the distribution of sediment throughout the melt season to determine if changes in supraglacial streamflow effected sediment deposition and the absorption of solar radiation. |
format |
Dataset |
author |
Sasha Leidman |
author_facet |
Sasha Leidman |
author_sort |
Sasha Leidman |
title |
Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
title_short |
Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
title_full |
Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
title_fullStr |
Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
title_full_unstemmed |
Digital elevation models (DEMs) and ortho-mosaic imagery derived from uncrewed aerial vehicle (UAV) images over Point 660 in Southwest Greenland (67.16 N, 49.99 W) |
title_sort |
digital elevation models (dems) and ortho-mosaic imagery derived from uncrewed aerial vehicle (uav) images over point 660 in southwest greenland (67.16 n, 49.99 w) |
publisher |
Arctic Data Center |
publishDate |
|
url |
https://doi.org/10.18739/A2RN3087N |
op_coverage |
Ablation zone of the Greenland Ice Sheet in Southwest Greenland, ~2 km from the ice edge outside of Kangerlussuaq, Greenland. Colloquially known as Point 660. ENVELOPE(-51.0,-49.0,68.0,67.0) BEGINDATE: 2019-07-22T00:00:00Z ENDDATE: 2019-08-15T00:00:00Z |
long_lat |
ENVELOPE(173.160,173.160,52.926,52.926) ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-51.0,-49.0,68.0,67.0) |
geographic |
Center Point Greenland Kangerlussuaq |
geographic_facet |
Center Point Greenland Kangerlussuaq |
genre |
Greenland Ice Sheet Kangerlussuaq |
genre_facet |
Greenland Ice Sheet Kangerlussuaq |
op_doi |
https://doi.org/10.18739/A2RN3087N |
_version_ |
1800872154767556608 |