Vivid 2020
收藏资源简介:
This is a licensed dataset from Maxar-DigitalGlobe, Inc. USDA-FPAC-BC-GEO Branch acquired this Hawaiian Islands Vivid Orthoimagery Mosaic dataset directly from Maxar-DigitalGlobe, Inc. Digital orthoimagery combines the image characteristics of a digital image with the geometric qualities of a map. The primary dynamic digital orthophoto is a 30-50 centimeter ground resolution, image cast to the customer specified projection and datum defined in the Spatial Reference Information section of this metadata document. The overedge is included to facilitate tonal matching for mosaicking and ensure full coverage if the imagery is reprojected. The normal orientation of data is by lines (rows) and samples (columns). Each line contains a series of pixels ordered from west to east with the order of the lines from north to south. Maxar-DigitalGlobe Vivid Standard Satellite Orthoimagery mosaic was delivered to USDA in GeoTIFF file format. Maxar-DigitalGlobe Vivid mosaic is from WV-2, WV-2, WV-4 and Geo1 satellites. Vivid Standard Orthoimagery dataset is .5 m/50 cm ground resolution, 4 Bands, 8 Bits Pan-Sharpen GeoTIFF files. The mosaic is cloud patched, tone matched and has a horizontal accuracy of 5 meters at CE 90%. The Maxar-DigitalGlobe Vivid Standard Satellite Composite Orthoimagery Mosaic contains 363 tiles for all of the Hawaiian Islands. 304 out of 363 tiles were collected in 2019-2020. The majority of the tiles from 2014-2016 are for an area in eastern Kauai. Please contact the Hawaii Statewide GIS Program with questions about this map service at gis@hawaii.gov.
本数据集为Maxar-DigitalGlobe公司(Maxar-DigitalGlobe, Inc.)授权数据集。美国农业部-FPAC-BC-GEO部门直接从Maxar-DigitalGlobe公司获取了本夏威夷群岛维维德正射影像(Orthoimagery)镶嵌数据集。 数字正射影像融合了数字图像的影像特性与地图的几何属性。本数据集的核心动态数字正射影像地面分辨率为30至50厘米,其投影与基准面严格遵循本元数据(metadata)文档空间参考信息章节中用户指定的参数设置。数据集包含边缘溢出数据,以方便镶嵌作业时的色调匹配,并确保影像重投影后覆盖范围完整无缺。 数据的常规组织方式为行(lines,即rows)与采样点(samples,即columns):每一行的像素按从西向东的顺序排列,而行的整体排列顺序则为从北向南。 Maxar-DigitalGlobe维维德标准卫星正射影像镶嵌包以GeoTIFF文件格式交付给美国农业部。本维维德镶嵌影像由WV-2、WV-2、WV-4以及Geo1卫星采集所得。维维德标准正射影像数据集的地面分辨率为0.5米/50厘米,包含4个波段,为8位全色锐化(Pan-Sharpen)GeoTIFF文件。该镶嵌影像已完成云修补与色调匹配,其水平精度在CE 90%置信水平下可达5米。 Maxar-DigitalGlobe维维德标准卫星合成正射影像镶嵌数据集覆盖整个夏威夷群岛,共计包含363个影像块。其中304个影像块采集于2019至2020年,剩余2014至2016年采集的影像块大多覆盖考艾岛东部区域。 若对本地图服务存有疑问,请联系夏威夷全州地理信息系统项目,官方联系邮箱:gis@hawaii.gov。



