VIIRS/JPSS2 Moderate Resolution 6-Min L1B Swath 750m NRT

The Near Real Time (NRT) VIIRS/JPSS2 Moderate Resolution 6-Min L1B Swath 750m, short-name VJ202MOD_NRT is the Joint Polar-orbiting Satellite System-2 (JPSS-2/NOAA-21; referred to hereafter as J2) platform-derived NASA VIIRS L1B calibrated radiances product that comprises of sixteen moderate-resolution or M-bands with a spatial resolution of 750-meters at nadir. These M-bands comprise eleven reflective solar bands (RSB) and five thermal emissive bands (TEB). Each of the M-bands has 16 detectors in the along-track direction with 16 rows of pixels per scan that provide a 750-m resolution. Ranging in wavelengths from 0.402 µm to 12.49 µm, the M-bands are sensitive to visible, near-, shortwave-, mediumwave-, and longwave-infrared wavelengths. Derived from the NASA VIIRS L1A raw radiances, this product includes calibrated and geolocated radiance and reflectance data, quality flags, and granule- and collection-level metadata. In contrast to a MODIS L1B product, which temporally spans 5 minutes, the VIIRS L1B calibrated radiances product contains a nominal temporal duration of 6 minutes. The image dimensions of the 750-m swath product measure 3232 lines by 3200 pixels.

The J2 VIIRS radiometric calibration Level-1B reprocessing includes a few calibration updates for the reflective solar bands (RSB), but no significant changes for the day-night band (DNB) or thermal emissive bands (TEB). For more information download VIIRS Level 1 Product User's Guide at:

https://ladsweb.modaps.eosdis.nasa.gov/archive/Document%20Archive/Scien…

实时近地 (NRT) VIIRS/JPSS2 中分辨率 6 分钟 L1B 扫宽 750 米数据集，简称 VJ202MOD_NRT，是基于联合极地轨道卫星系统-2（JPSS-2/NOAA-21，以下简称 J2）平台并由美国国家航空航天局 (NASA) VIIRS L1B 校准辐射率产品派生而成。该产品包含十六个中分辨率或 M 波段，在视场中心点处的空间分辨率为 750 米。这些 M 波段包括十一个反射太阳波段（RSB）和五个热辐射波段（TEB）。每个 M 波段沿轨迹方向具有 16 个探测器，每扫描行有 16 行像素，提供 750 米的分辨率。波长范围从 0.402 微米到 12.49 微米，M 波段对可见光、近红外、短波红外、中波红外和长波红外波长敏感。该产品由 NASA VIIRS L1A 原始辐射率派生，包含校准和地理定位的辐射率和反射率数据、质量标志以及粒度和收集级元数据。与时间跨度为 5 分钟的 MODIS L1B 产品相比，VIIRS L1B 校准辐射率产品具有 6 分钟的标称时间跨度。750 米扫描宽度产品的图像尺寸为 3232 行和 3200 像素。

J2 VIIRS 辐射度 L1B 重处理包括对反射太阳波段（RSB）的一些校准更新，但对于日夜波段（DNB）或热辐射波段（TEB）没有显著变化。更多信息，请下载 VIIRS L1 产品用户指南：

https://ladsweb.modaps.eosdis.nasa.gov/archive/Document%20Archive/Scien…”
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