AIRBORNE LASER ALTIMETRY OVER THE CENTRAL WEST ANTARCTIC ICE SHEET
The portion of the West Antarctic ice sheet (WAIS) encompassing the ice divide separating the Pine Island and Ross Embayments and ice stream D within the Ross Embayment is a particular focus for WAIS research. Proposed activities include both deep ice coring and shallow coring traverses near the div...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.222.2861 http://www.isprs.org/proceedings/XXXII/3-W14/pdf/p167.pdf |
| Summary: | The portion of the West Antarctic ice sheet (WAIS) encompassing the ice divide separating the Pine Island and Ross Embayments and ice stream D within the Ross Embayment is a particular focus for WAIS research. Proposed activities include both deep ice coring and shallow coring traverses near the divide as well as a seismological traverses of the ice stream onset. Here we report on results of the laser altimetry component of a 100,000 line-km aerogeophysical survey (on a 5.3 km grid) collected by the Support O±ce for Aerogeophysical Research (SOAR) covering ice stream D from the ice divide to the grounding line (Figure 1). This survey utilized a 16 uJ (total energy) pulsed laser (23 nsec pulse at 1064 nm) with a 1.8 to 3.5 m footprint (for a typical °ight elevations of 500-1000 m). The average range from the aircraft to the ice surface was determined every |
|---|