Geolocation Shift Log for ECOSTRESS Scenes Across Ten Study Sites
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This dataset includes the geolocation shift logs for ECOSTRESS scenes across ten study sites: O‘ahu, Hawaii; Chesapeake Bay, Maryland-Virginia; Puget Sound, Washington; Tutuila, American Samoa; Florida Keys, Florida; Liverpool Bay, United Kingdom; Puerto Rico; Guam; Los Angeles, California; and Brisbane, Australia. There is an individual csv file per study site, each including the following fields: filename, datetime, azimuth_deg (direction of the geolocation shift), and distance_m (magnitude of the shift in meters). Each scene was manually shifted using the GeoViewer tool by Longenecker, et al. to derive these values. ECOSTRESS (ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station) acquires thermal imagery from the International Space Station (ISS) which causes some spatial misalignment relative to true ground locations due to the ISS's variable orbit, and pointing geometry. The azimuth and distance values in this dataset represent the magnitude and direction of these geolocation errors and can be used to assess or correct spatial offsets in ECOSTRESS data.
本数据集涵盖10个研究区域内ECOSTRESS(ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station,空间站载人生态系统热辐射计实验)影像的地理定位偏移日志,研究区域包括:夏威夷州瓦胡岛、马里兰州-弗吉尼亚州切萨皮克湾、华盛顿州普吉特湾、美属萨摩亚图图伊拉岛、佛罗里达州佛罗里达群岛、英国利物浦湾、波多黎各、关岛、加利福尼亚州洛杉矶以及澳大利亚布里斯班。每个研究区域对应一个独立的CSV文件,各文件均包含以下字段:文件名(filename)、日期时间(datetime)、方位角(azimuth_deg,即地理定位偏移方向)、偏移距离(distance_m,单位:米,代表偏移量大小)。所有影像场景均由朗格内克(Longenecker)等学者借助GeoViewer工具手动完成偏移校正,以推导上述字段的数值。 ECOSTRESS搭载于国际空间站(ISS),用于获取热红外遥感影像。由于国际空间站轨道可变且指向几何存在差异,其获取的影像会相对于真实地面位置产生空间错位。本数据集记录的方位角与距离数值,即代表这类地理定位误差的方向与幅值,可用于评估或校正ECOSTRESS数据中的空间偏移。



