Brief Communication: Update on the GPS Reflection Technique for Measuring Snow Accumulation in Greenland
GPS Interferometric Reflectometry (GPS-IR) is a technique that can be used to measure snow accumulation on ice sheets. The footprint of the method (~ 1000 m^2) is larger than many other in situ methods. A long-term comparison with hand-measurements yielded an accuracy assessment of 2 cm. Depending o...
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://doi.org/10.5194/tc-2019-303 https://www.the-cryosphere-discuss.net/tc-2019-303/ |
| Summary: | GPS Interferometric Reflectometry (GPS-IR) is a technique that can be used to measure snow accumulation on ice sheets. The footprint of the method (~ 1000 m^2) is larger than many other in situ methods. A long-term comparison with hand-measurements yielded an accuracy assessment of 2 cm. Depending on the placement of the GPS antenna, these data are also sensitive to firn density. The purpose of this short note is to make public GPS-IR measurements of snow accumulation for four sites in Greenland, compare these records with in situ sensors, and to make available open source GPS-IR software to the cryosphere community. |
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