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EXPLOITATION OF GOCE AND CRYOSAT-2 DATA – COMBINED APPLICATIONS

机译:GOCE和CRYOSAT-2数据的综合应用

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The two ESA Earth Explorer Core missions CryoSat-2rnand GOCE provide a unique opportunity for exploring arnbroad variety of scientific applications in the fields ofrnGeodesy, Oceanography and Cryospheric research.rnBoth missions are currently in orbit and acquiringrnmeasurement data. Combining the data derived from therntwo missions allows computing oceanographic productsrnsuch as Absolute Dynamic Topography (ADT) with arnspatial resolution and accuracy higher than currentrnsolutions.rnTo get an idea of possible improvements in spatialrnresolution and accuracy with respect to the utilization ofrnprevious missions’ data, a preliminary case study in thernPacific region will demonstrate the ADT quality. Thernproducts used within the case study will be GOCE-onlyrnand CryoSat-2-only Low Rate Mode level 2 (LRM L2)rndatasets on one hand and multi-mission altimetryrnproducts and non-GOCE derived geoid models on thernother hand. Parameters for comparison are, due to thernlimited availability of CryoSat-2 data, along trackrndifferences and correlation coefficients for single passesrnof CryoSat-2. An example for an ADT map replacingrnCryoSat-2 data with Envisat data is presented to showrnthe performance of the techniques applied.
机译:两次ESA Earth Explorer核心任务CryoSat-2rn和GOCE为探索大地测量学,海洋学和冰冻圈研究领域中广泛的科学应用提供了独特的机会。这两个任务目前都在轨道上并获取测量数据。结合两次任务获得的数据,可以计算出具有比当前解决方案更高的空间分辨率和精度的绝对动态地形(ADT)之类的海洋学产品。要想就先前任务的数据利用方面在空间分辨率和准确性方面可能有所提高,在太平洋地区的案例研究将证明ADT的质量。案例研究中使用的产品一方面是仅GOCE,仅是CryoSat-2低速率模式2级(LRM L2)数据集,另一方面是多任务altimetryrn产品和非GOCE派生的大地水准面模型。由于CryoSat-2数据的无限可用性,用于比较的参数沿单次传递CryoSat-2的磁道差和相关系数。给出了一个ADT映射用Envisat数据替换CryoSat-2数据的示例,以显示所应用技术的性能。

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