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首页> 外文会议>CryoSat third user workshop >VALIDATION OF CRYOSAT-2 PRODUCTS OVER THE CONTINENTAL ICE SHEET IN EAST ANTARCTICA
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VALIDATION OF CRYOSAT-2 PRODUCTS OVER THE CONTINENTAL ICE SHEET IN EAST ANTARCTICA

机译：在东南部的大陆冰盖上验证冷冻剂-2产品

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One of the main goals of the CryoSat-2 mission is to observe the variations in the elevation of the continental ice sheets within a few centimeters accuracy. To fulfill these high quality claims the CryoSat-2 Level 2 products need to be validated against independent measurements. We use several data sets to validate these products in central East Antarctica. Especially the remarkably flat terrain over the subglacial Lake Vostok yields an excellent opportunity for a comparison with the results of the laser altimeter mission ICESat. We present the results of these investigations like the estimated offset and accuracy as well as an intercomparison of both data sets with different elevation models. Furthermore, we use several kinematic GNSS profiles which were recorded during the participation of members of the Institut für Planetare Geod?sie (IPG) of TU Dresden in the Russian Antarctic Expedition (RAE) between 2001 and 2012. After 2006 these data sets also include 6 continental traverses with a length of about 1600km each between the coast and the Russian Antarctic research Station Vostok (78?28′S, 106?50′E). With an accuracy of about 16cm we can use these data to show that the surface height changes in this region are negligible small. Hence, these data sets are appropriate for a direct comparison of the CryoSat-2 products with ground based observations. Additional to ESA’s Baseline-B dataset, we also compare a retracked dataset by V. Helm from Alfred-Wegener-Institute. This yields the opportunity to to have a close look at the respective characteristics of these two solutions.
机译：冷冻机2任务的主要目标之一是在几厘米的精度范围内观察大陆冰盖升高的变化。为了满足这些优质声明，需要验证低温-2级产品，以防止独立测量。我们使用多个数据集来验证中东南极洲中央东部的这些产品。特别是斯莫利斯湖沃斯托克的非常平坦的地形产生了与激光高度计任务ICESAT的结果进行比较的绝佳机会。我们介绍了这些调查的结果，如估计的偏移和准确性以及与不同高度模型的数据集的相互熟练。此外，我们使用多种运动学GNSS档案，该概况在InstitutFürPlanetareGeod的成员参与期间记录了俄罗斯南极探险（RAE）在2001年至2012年之间的TU德累斯顿（RAE）。2006年后，这些数据集还包括6大陆横向，海岸和俄罗斯南极研究站Vostok之间的长度约为1600km（78？28，106？50'e）。精度约为16厘米，我们可以使用这些数据来表明该区域的表面高度变化可忽略不计。因此，这些数据集适合于直接比较与基于地面的观察结果的低温-2产品。 eSA的Baseline-B数据集附加，我们还从Alfred-Wegener-Institute比较V. Helm的Retracked DataSet。这产生了仔细观察这两个解决方案的各个特征的机会。

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