Co-Registered AMSR-E, QuikSCAT, and WMO Data, Version 1

Notice to Data Users:
The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited.

This data set contains the following spatially and temporally co-registered data: Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) brightness temperatures for all channels; Quick Scatterometer (QuikSCAT) backscattering coefficients; and World Meteorological Organization (WMO) ground observations acquired from more than two thousand stations. There is a large, increasing interest in the potential arising from the combination of active and passive microwave data for the extraction of geophysical parameters from spaceborne platforms. Often, one of the major obstacles is the generation of spatially and temporally co-registered data sets for testing hypotheses, validating models, and developing retrieval approaches. The temporal coverage of this data set spans from 01 January 2002 through 19 March 2009 with AMSR-E data included for the 19 June 2002 through 19 March 2009 time period. The volume of the data set is approximately two gigabytes. Data are provided in tab-delimited ASCII text files and are available via FTP.

数据集用户须知：
本数据集的文档仅由首席研究员（Principal Investigator，PI）提供，未由美国国家冰雪数据中心（National Snow and Ice Data Center，NSIDC）进行进一步完善、全面审核或编辑。因此，本数据集的相关支持服务可能较为有限。

本数据集包含以下经时空配准的协同数据：高级微波扫描辐射计-地球观测系统（Advanced Microwave Scanning Radiometer - Earth Observing System，AMSR-E）全通道亮温数据、快速散射计（Quick Scatterometer，QuikSCAT）后向散射系数，以及来自全球2000余个气象站点的世界气象组织（World Meteorological Organization，WMO）地面观测数据。

当前，学界对结合主动与被动微波数据以从星载平台反演地球物理参数的应用潜力关注度与日俱增。而构建经时空配准的数据集，用于假说检验、模型验证与反演方法开发，往往是一大核心障碍。

本数据集的时间覆盖范围为2002年1月1日至2009年3月19日，其中AMSR-E数据的覆盖时段为2002年6月19日至2009年3月19日。本数据集总容量约为2吉字节（GB），数据以制表符分隔的ASCII文本文件格式存储，可通过文件传输协议（File Transfer Protocol，FTP）获取。