Geodetic Data for USGS Glaciers: Orthophotos, Digital Elevation Models, Glacier Boundaries and Surveyed Positions ...

• Main Authors: Christopher J. Mcneil, Caitlyn E Florentine, Valerie A Bright, Mark J. Fahey, Evan McCann, Christopher F. Larsen, Evan E Thoms, David E. Shean, Lisa A Mckeon, Rod S. March, William Keller, Erin N Whorton, Shad R O'Neel, Emily H Baker, Louis Sass, Katherine E Bollen
• Format: Dataset
• Language: unknown
• Published: U.S. Geological Survey 2019
• Subjects: Glaciology; Alaska; Washington; Montana; Cryosphere; Glaciers; Snow and ice cover; Glaciers/Ice Sheets; Ablation Zones/Accumulation Zones; Glacier Elevation/Ice Sheet Elevation; Glacier Mass Balance/Ice Sheet Mass Balance; Glaciation; Gulkana Glacier; Wolverine Glacier; Sperry Glacier; Lemon Creek Glacier; South Cascade Glacier; Cascade Glacier; Lemon Creek; glacier; glaciers; Ice Sheet
• Online Access: https://dx.doi.org/10.5066/p9r8bp3k; https://www.sciencebase.gov/catalog/item/5d7adbcde4b0c4f70d02a4d6

This data release provides geodetic measurements collected since the mid-1940s to characterize the surface elevation, area, and motion of glaciers studied by the U.S, Geological Survey. The primary glaciers of focus are the Benchmark Glaciers of North America which include Gulkana, Wolverine, and Lemon Creek Glaciers in Alaska, Sperry Glacier in Montana, and South Cascade Glacier in Washington state (USA). The data include: historic and contemporary glacier boundary outlines, point data from GNSS surveys, Digital Elevation Models (DEM), and orthorectified aerial photos and satellite imagery (Orthos). This data release is updated periodically. The "versionHistory.txt" file included with this data release describes updates made in each version. ...