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首页> 外文会议>CryoSat third user workshop >A TOOLKIT FOR CRYOSAT INVESTIGATIONS BY THE ESRIN EOP-SER ALTIMETRY TEAM
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A TOOLKIT FOR CRYOSAT INVESTIGATIONS BY THE ESRIN EOP-SER ALTIMETRY TEAM

机译：ESRIN EOP-SER Altimetry团队的CryoSat调查工具包

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The scope of this work is to feature the new tool for the exploitation of the CryoSat data, designed and developed entirely by the Altimetry Team at ESRIN EOP-SER (Earth Observation – Exploitation, Research and Development). The tool framework is composed of two separate components: the first one handles the data collection and management, the second one is the processing toolkit. The CryoSat FBR (Full Bit Rate) data is downlinked uncompressed from the satellite, containing un-averaged individual echoes. This data is made available in the Kiruna CalVal server in a 10 day rolling archive. Daily at ESRIN all the CryoSat FBR data, in SAR and SARin Mode, are downloaded (around 30 Gigabytes) catalogued and archived in local ESRIN EOP-SER workstations. As of March 2013, the total amount of FBR data is over 9 Terabytes, with CryoSat acquisition dates spanning January 2011 to February 2013 (with some gaps). This archive was built by merging partial datasets available at ESTEC and NOAA, that have been kindly made available for EOP-SER team. The on-demand access to this low level data is restricted to expert users with validated ESA P.I. credentials. Currently the main users of the archiving functionality are the team members of the Project CP4O (STSECryoSat Plus for Ocean), CNES and NOAA. The second component of the service is the processing toolkit. On the EOP-SER workstations there is internally and independently developed software that is able to process the FBR data in SAR/SARin mode to generate multi-looked echoes (Level 1B) and subsequently able to re-track them in SAR and SARin mode (Level 2) over open ocean, exploiting the SAMOSA model and other internally developed models. The processing segment is used for research & development scopes, supporting the development contracts awarded confronting the deliverables to ESA, on site demonstrations/training to selected users, crosscomparison against third part products (CLS/CNES CPP Products for instance), preparation to Sentinel-3 mission, ublications, etPc. Samples of these experimental SAR/SARin L1b/L2 Products can be provided to the scientific community for comparison with self-processed data, on-request. So far, the processing has been designed and optimized for open ocean studies and is fully functional only over this kind of surface but there are plans to augment this processing capacity over coastal zones, inland waters and over land in sight of maximizing the exploitation of the upcoming Sentinel-3 Topographic mission over all surfaces. There are also plans to make the toolkit fully accessible through software “gridification” to run in the ESRin GPod (Grid Processing on Demand) Service and to extend the tool’s functionalities to support Sentinel-3 Mission (both Simulated and Real Data). Graphs and statistics about the spatial coverage and amount of FBR data actually archived on the EOP-SER workstations and some scientific results will be shown in this paper along with the tests that have been designed and performed to validate the products (tests against CryoSat Kiruna PDGS Products and against transponder data).
机译：这项工作的范围是为Esrin Eop-Ser（地球观察，研发，研发的Altimetry团队完全设计和开发的新工具。工具框架由两个单独的组件组成：第一个处理数据收集和管理，第二个是处理工具包。低温FBR（全比特率）数据从卫星中解压缩，其中包含未平均的单个回波。在10天的滚动归档中，在Kiruna Calval Server中提供了此数据。每日在ESRIN中，在SAR和Sarin模式下，在SAR和SARIN模式下，在当地ESRIN EOP-SER工作站上下载并存档约30千兆字节）。截至2013年3月，FBR数据的总量超过9兆字节，跨越2011年1月至2013年2月（带有一些差距）的冷冻收购日期。该存档是通过合并ESTEC和NOAA可用的部分数据集来构建，这些数据集已善待EOP-SER团队。对此低级数据的按需访问仅限于具有验证ESA P.I的专家用户。证书。目前，归档功能的主要用户是项目CP4O的团队成员（STSECRYOSAT Plus for Ocean），CNES和NOAA。该服务的第二个组件是处理工具包。在EOP-SER工作站上，内部和独立开发的软件能够在SAR / Sarin模式下处理FBR数据，以生成多关调光（级别1B），然后能够在SAR和Sarin模式下重新跟踪它们（ 2级）在开阔的海洋上，利用Samosa模型和其他内部开发的模型。处理段用于研究和开发范围，支持将可交付成果授予的开发合同，在现场演示/培训对选择的用户，反对第三部分产品（例如CLS / CNES CPP产品）的跨竞争，向Sentinel做准备 - 3任务，Ublex，ETPC。可以向科学界提供这些实验SAR / SARIN L1B / L2产品的样本，以便与自我处理的数据进行比较，请求。到目前为止，该加工已经为开放的海洋研究设计和优化，只有在这种表面上完全奏效，但有计划在沿海地区，内陆水域和陆地上增加这一加工能力，以便最大化剥削的陆地在所有表面上即将举行的Sentinel-3地形任务。还计划通过软件“网格”可以通过软件“网格”在ESRIN GPOD（电网处理）服务中运行，并扩展工具功能以支持Sentinel-3任务（模拟和实际数据）的功能。关于EOP-SER工作站实际存档的空间覆盖率和FBR数据量的图表和统计数据以及一些科学结果将与设计和执行的测试一起显示，以验证产品（对Cryosat Kiruna PDG的测试产品和转发器数据）。

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