JPSS-1 CrIS Level 1B Full Spectral Resolution V2 (SNDRJ1CrISL1B) at GES DISC

The Cross-track Infrared Sounder (CrIS) Level 1B Full Spectral Resolution (FSR) data files contain radiance measurements along with ancillary spacecraft, instrument, and geolocation data of the CrIS instrument on the Joint Polar Satellite System-1 (JPSS-1) platform. This platform is also know as NOAA-20 (National Oceanic and Atmospheric Administration). The JPSS-1 mission with CrIS instrumentation is a follow-on to the Suomi National Polar-orbiting Partnership (SNPP) mission. The CrIS instrumentation and data processing system is nearly identical to that of the SNPP satellite.

CrIS is designed to be used with the ATMS (Advanced Technology Microwave Sounder) instrument. Processing the data from both of these instruments together is referred to as CrIMSS (Cross-Track Infrared and Microwave Sounder Suite).

The FSR files have 2,223 channels (*2211 apodized channels): 637 (*633) shortwave channels from 3.9 to 4.7 microns (2555 to 2150 cm-1), 869 (*865) midwave channels from 5.7 to 8.05 microns (1752.5 to 1242.5 cm-1), and 717 (*713)longwave channels from 9.1 to 15.41 microns (1096.25 to 648.75 cm-1). Each CrIS field-of-regard (FOR) contains 9 field-of-views (FOVs) arranged in a 3X3 array. The Level 1B files contain 30 FORs in the cross track direction and 45 in the along track direction. Data products are constructed on six minute boundaries.

If you were redirected to this page from a DOI from an older version, please note this is the current version of the product. Please contact the GES DISC user support if you need information about previous data collections.

跨轨红外探测器（"Cross-track Infrared Sounder, CrIS"）的1级B类全光谱分辨率（"Full Spectral Resolution, FSR"）数据文件，包含搭载于联合极轨卫星系统1号（"Joint Polar Satellite System-1, JPSS-1"）平台的CrIS仪器的辐射亮度测量数据，以及配套的航天器、仪器与地理定位辅助数据。该平台亦被称为NOAA-20（美国国家海洋和大气管理局）。搭载CrIS仪器的JPSS-1任务，是苏奥米国家极轨伙伴卫星（"Suomi National Polar-orbiting Partnership, SNPP"）任务的后续项目。CrIS仪器与数据处理系统，与SNPP卫星的对应系统几乎完全一致。

CrIS设计用于与先进技术微波探测器（"Advanced Technology Microwave Sounder, ATMS"）配合使用。将这两台仪器的数据联合处理的流程，被称为跨轨红外与微波探测器套件（"Cross-Track Infrared and Microwave Sounder Suite, CrIMSS"）。

全光谱分辨率文件共包含2223个通道（其中2211个为切趾通道）：包括637个（*633）短波通道，波段范围为3.9至4.7微米（对应波数2555至2150 cm⁻¹）；869个（*865）中波通道，波段范围为5.7至8.05微米（对应波数1752.5至1242.5 cm⁻¹）；以及717个（*713）长波通道，波段范围为9.1至15.41微米（对应波数1096.25至648.75 cm⁻¹）。每个CrIS视场范围（"Field-of-Regard, FOR"）包含9个视场（"Field-of-View, FOV"），以3×3阵列排布。1级B类文件在跨轨方向包含30个视场范围，沿轨方向包含45个视场范围。数据产品以6分钟为时间边界进行构建。

若您从旧版本的数字对象标识符（"Digital Object Identifier, DOI"）链接重定向至本页面，请注意此处为该产品的当前版本。若您需要过往数据采集的相关信息，请联系GES DISC用户支持团队。