VIIRS/NPP Moderate Resolution Terrain-Corrected Geolocation 6-Min L1 Swath 750m NRT

The VIIRS/NPP Moderate Resolution Terrain-Corrected Geolocation L1 6-Min Swath 750m Near Real Time (NRT) product, short-name VNP03MOD_NRT includes the geolocation fields that are calculated for each VIIRS moderate resolution band (M-band) Line of sight (LOS) for all orbits at the nominal resolution of 750 m. The locations and ancillary information correspond to the intersection of the centers of each Field of View (FOV) from 16 detectors in an ideal M-band on the Earth's surface. A digital terrain model is used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit ephemeris data, the instrument telemetry and the digital elevation model. The geolocation fields contained within the VNP03MOD Geolocation files include geodetic latitude, longitude, surface height above the geoid, solar zenith and azimuth angles, satellite zenith and azimuth angles, and a land/water mask for each 750m sample. Additional information is included in the header to enable the calculation of the approximate location of the center of the detectors for any of the VIIRS bands. This product is used as input by subsequent VIIRS Moderate Resolution products, particularly those produced by the Land team.

该数据集为VIIRS/NPP中高分辨率地形校正地理定位L1 6分钟宽条带750米近实时(NRT)产品，简称VNP03MOD_NRT，其中包含了针对每个VIIRS中高分辨率波段(M波段)视场(LOS)的地理定位字段，这些字段是针对所有轨道在750米标准分辨率下计算得出的。该位置及相关辅助信息与地球上理想M波段中16个探测器视场中心的交点相对应。利用数字地形模型来模拟地球表面。主要输入包括航天器姿态和轨道摄动数据、仪器遥测数据和数字高程模型。VNP03MOD地理定位文件中包含的地理定位字段包括大地纬度、经度、相对于大地水准面的地表高度、太阳天顶角和方位角、卫星天顶角和方位角以及每个750米样本的土地/水域掩膜。头部信息中还包含额外信息，以支持计算VIIRS各波段探测器中心的大致位置。该产品被后续的VIIRS中高分辨率产品用作输入，特别是那些由陆地团队生产的产品。