BAID: RADARSAT and ERS satellite SAR Images

Synthetic Aperture Radar (SAR) data are incorporated into the Barrow Area Information Database (BAID) in support of science logistics planning and subsistence hunters working on the sea ice along the coast of Barrow, Alaska. SAR is an active sensor, mounted on both the Canadian Space Agency RADARSAT-1 satellite and the European Remote Sensing Agency ERS-2 satellite. As the sensors orbit the earth, the radar signals are transmitted and then it measures how strongly those signals are scattered back. The SAR sensors can "see" both at night and through clouds. RADARSAT-1 data are in "R" files, ERS data are in "E" files. Each zip file contains documentation in an .xml file. These images from the Barrow Area Information Database are included as a result of efforts of the Systems Ecology Lab at the University of Texas at El Paso. Access to this data set is restricted. To obtain SAR source data from the Alaska Satellite Facility (ASF), users must submit a proposal to NASA for approval. Once a user has been approved to access the data and has required login information, one must use the online search tools for ASF's Data Active Archive Center (DAAC) to locate relevant scenes and to place orders. Please contact [e-mail]

合成孔径雷达（Synthetic Aperture Radar, SAR）数据已被纳入巴罗地区信息数据库（Barrow Area Information Database, BAID），用于支持阿拉斯加州巴罗沿岸海冰区域的科学后勤规划以及生计型狩猎作业。合成孔径雷达是一种主动式传感器，分别搭载于加拿大航天局的RADARSAT-1卫星与欧洲遥感局的ERS-2卫星之上。当传感器沿轨道绕地球运行时，雷达信号会被发射，并随后测量这些信号的后向散射强度。合成孔径雷达传感器可在夜间及云层遮蔽条件下完成对地观测。RADARSAT-1的数据存储为“R”格式文件，ERS数据则存储为“E”格式文件。每个压缩包均包含一份XML格式的说明文档。本批源自巴罗地区信息数据库的影像，由得克萨斯大学埃尔帕索分校系统生态学实验室贡献。本数据集的访问权限受到限制。若需从阿拉斯加卫星设施（Alaska Satellite Facility, ASF）获取SAR源数据，用户须向美国国家航空航天局（National Aeronautics and Space Administration, NASA）提交申请以获得审批。在用户获批数据访问权限并获取所需登录信息后，须通过阿拉斯加卫星设施数据主动存档中心（Data Active Archive Center, DAAC）的在线检索工具定位相关影像场景并提交订购请求。如需咨询，请发送邮件至[e-mail]