Find the firn line! The suitability of ERS-1 and ERS-2 SAR data for the analysis of glacier facies on Icelandic icecaps
Find the firn line! The suitability of ERS-1 and ERS-2 SAR data for the analysis of glacier facies on Icelandic icecaps
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DOI：
10.1080/014311699211714
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发表时间：
1999
影响因子：
3.4
通讯作者：
I. Brown;M. Kirkbride;R. Vaughan
中科院分区：
文献类型：
--
作者：
I. Brown;M. Kirkbride;R. Vaughan
冰岛的冰盖是气候波动的敏感指标。可以使用遥感技术来确定冰川相的边界;合成孔径雷达数据是监测冰川相的第一个真实的机会，没有定期或年际间隔的云衰减。这项研究评估了冰川相，特别是对冰岛冰盖的雪线高度（弗拉）的监测数据的整体适用性。结果表明，在垂直方向上，雪线的位置在± 20- 40 m之间。这些结果得到了航空照片和地面数据的验证。据认为，与其他卫星数据相比，RAIDS（快速信息传播系统）处理的数据在这类应用方面更为有利。
Icelandic Icecaps are sensitive indicators of climatic fluctuations. Glacier facies boundaries can be identified using remote sensing techniques; SAR data represents the first real opportunity to monitor glacier facies, without cloud attenuation at regular or inter-annual intervals. This study assesses the overall suitability of the data for the monitoring of glacier facies and in particular the firn line altitude (FLA) on Icelandic Icecaps. The results show that the firn line can be identified and located to within +/- 20-40m (vertically). These results were validated using aerial photograph and ground data. RAIDS (Rapid Information Dissemination System) processed data were found to compare favourably with other satellite data for this type of application.