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  3. Slow-moving landslides and subsiding fan deltas mapped from Sentinel-1 InSAR in the Glacier Bay region, Alaska and British Columbia, 2018-2020

Slow-moving landslides and subsiding fan deltas mapped from Sentinel-1 InSAR in the Glacier Bay region, Alaska and British Columbia, 2018-2020

Dates

Publication Date
Start Date
2018-06-01
End Date
2020-10-31

Citation

Kim, J., Coe, J.A., Lu, Z., Avdievitch, N.N., and Hults, C.P., 2022, Slow-moving landslides and subsiding fan deltas mapped from Sentinel-1 InSAR in the Glacier Bay region, Alaska and British Columbia, 2018-2020: U.S. Geological Survey data release, https://doi.org/10.5066/P99KCP4M.

Summary

This data release contains four GIS shapefiles, one Google Earth kmz file, and five metadata files that summarize results from Interferometric Synthetic Aperture Radar (InSAR) analyses in the Glacier Bay region of Alaska and British Columbia. The principal shapefile (Moving_Ground) and the kmz file (GBRegionMovingGround) contain polygons delineating slow-moving (0.5-6 cm/year in the radar line-of-sight direction) landslides and subsiding fan deltas in the region. Landslides and fan deltas were identified from displacement signals captured by InSAR interferograms of Sentinel-1 C-band Synthetic Aperture Radar images. The images were acquired at 12-day intervals from June to October from 2018 to 2020. We applied the persistent scatterer [...]

Contacts

Point of Contact :
Jeffrey A Coe
Process Contact :
Jinwoo Kim
Originator :
Jinwoo Kim, Jeffrey A Coe, Zhong Lu, Nikita N Avdievitch, Chad Hults
Metadata Contact :
GHSC Data Steward, Geologic Hazards Science Center
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Geologic Hazards Science Center
USGS Mission Area :
Natural Hazards

Attached Files

Click on title to download individual files attached to this item.

summary_metadata.xml
“Summary metadata”
Original FGDC Metadata
View 		23.46 KB application/fgdc+xml
MetaDataZipped.zip
“Metadata for GIS shapefiles” 		17.05 KB application/zip
GBRegionMovingGround.kmz
“Glacier Bay movement Google Earth kmz file” 		146.02 KB application/vnd.google-earth.kmz
GBRegionMovingGround.zip
“Glacier Bay movement GIS shapefiles” 		137.73 KB application/zip

Purpose

The purpose of this work was to detect areas of moving ground in the Glacier Bay region that could be hazardous to visitors of Glacier Bay National Park and Preserve. The areas of moving ground that we have identified could be combined with other data sets to produce a predictive subaerial landslide susceptibility map for the Glacier Bay region. Continued remote monitoring of these areas is warranted, especially where they are in close proximity to water, where displacement waves (tsunamis) could be generated by rapid landslide movement.

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P99KCP4M

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