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Esa Cryovex 2011 Airborne Campaign For Cryosat-2 Calibration And Validation

机译：Esa Cryovex 2011 airborne Campaign for Cryosat-2校准和验证

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摘要

After the successful launch of CryoSat-2 in April 2010, the first direct validation campaign of the satellite was carried out in the April-May 2011. DTU Space has been involved in ESA’s CryoSat Validation Experiment (CryoVEx) with airborne activities since 2003. To validate the performance of the CryoSat-2 radar altimeter (SIRAL), the aircraft is equipped with an airborne version of the SIRAL altimeter (ASIRAS) together with a laser scanner. Of particular interest is to study the penetration depth of SIRAL into both land- and sea ice. This can be done by comparing the radar and laser measurements, as the laser reflects on the surface, and by overflight of laser reflectors. In the spring of 2011 the DTU Space airborne team visited five main validation sites: Devon ice cap (Canada), Austfonna ice cap (Svalbard), the EGIG line crossing the Greenland Ice Sheet, as well as the sea ice north of Alert and sea ice around Svalbard in the Fram Strait. Selected tracks were planned to match CryoSat-2 passes and a few of them were flown in formation flight with the Alfred Wegener Institute (AWI) Polar-5 carrying an EM-bird. We present an overview of the 2011 airborne campaign together with first results of the CryoSat-2 underflights.
机译：在2010年4月成功发射CryoSat-2之后，2011年4月至2011年5月进行了卫星的首次直接验证活动。自2003年以来，DTU Space参与了ESA的CryoSat验证实验（CryoVEx）的机载活动。为了验证CryoSat-2雷达高度计（SIRAL）的性能，飞机配备了机载版本的SIRAL高度计（ASIRAS）和激光扫描仪。特别感兴趣的是研究SIRAL在陆地和海冰中的渗透深度。这可以通过比较雷达和激光的测量结果（当激光在表面上反射时）以及通过激光反射器的飞越来完成。 2011年春季，DTU太空机队访问了五个主要的验证地点：德文郡冰盖（加拿大），奥斯福纳冰盖（斯瓦尔巴特群岛），穿越格陵兰冰原的EGIG线以及Alert和Sea北部的海冰在弗拉姆海峡的斯瓦尔巴群岛周围结冰。已计划选择与CryoSat-2通道相匹配的轨道，其中一些轨道是与Alfred Wegener Institute（AWI）Polar-5一起搭载EM鸟的编队飞行。我们将介绍2011年空降战役的概况以及CryoSat-2飞行中的初步成果。

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