Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/9490| Title: | Geodetic positions of borehole sites of the Greenland Ice Sheet Program |
| Authors: | National Science Foundation (U.S.) Mock, S. J. |
| Keywords: | Borehole sites Geodesy Ice observations Ice strain Ice velocities Greenland Greenland Ice Sheet Program |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | CRREL report ; 76-41. |
| Description: | CRREL Report Abstract: Eight Geoceiver stations were established and suitably marked along or near the crestline of the Greenland ice sheet during GISP field operations from 1971 to 1975. At one of these stations, DYE-3, repeated Geoceiver positions indicate an ice velocity of 12.7 m yr^-1 on an azimuth of approximately 60°. Data from the International Greenland Glaciological Expedition (EGIG) surveys show that ice flow in the vicinity of Crete is radiating outward from a dome to the south. Two independent calculations of the state of equilibrium at Crete indicate ice sheet thinning rates of 0.25 to 0.37m yr^-1, while direct measurement of elevation change by EGIG indicates an ice sheet thickening rate of approximately 0.06m yr^-1. Resolution of these differences must await further geophysical work and deep drilling in the ice sheet. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/9490 |
| Appears in Collections: | CRREL Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CR-76-41.pdf | 2.54 MB | Adobe PDF |  View/Open |