VIIRS/JPSS2 Imagery Resolution 6-Min L1B Swath 375m NRT

The VIIRS/JPSS2 Imagery Resolution 6-Min L1B Swath 375m Near Real Time (NRT), short-name VJ202IMG_NRT is platform-derived NASA VIIRS L1B calibrated radiances product that comprises five image-resolution or I-bands, which have a 375-meter resolution at nadir. These I-bands comprise three reflective solar bands (RSB) and two thermal emissive bands (TEB). Each of the I-bands has 32 detectors in the along-track direction with 32 rows of pixels per scan that offer a resolution that is twice finer than that of the moderate (M) and Day-Night bands (DNB). Ranging in wavelengths from 0.6 µm to 12.4 µm, the I-bands are sensitive to visible/reflective, 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 375-m swath product measure 6464 lines by 6400 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…

VJ202IMG_NRT，简称VIIRS/JPSS2影像分辨率6分钟L1B条带375米近实时（NRT），为美国国家航空航天局（NASA）VIIRS L1B校准辐射率产品，由五个图像分辨率或I波段组成，在视场中心点（下视点）处具有375米的分辨率。这些I波段包括三个反射太阳波段（RSB）和两个热辐射波段（TEB）。每个I波段沿轨迹方向具有32个探测器，每个扫描有32行像素，提供的分辨率是中波（M）波段和日夜波段（DNB）的一半。波长范围从0.6微米至12.4微米，I波段对可见/反射、近红外、短波、中波和长波红外波长敏感。该产品基于NASA VIIRS L1A原始辐射率，包含校准和地理定位的辐射率和反射率数据、质量标志以及粒度级和集合级元数据。与MODIS L1B产品5分钟的时效性相比，VIIRS L1B校准辐射率产品具有6分钟的标称时效性。375米条带产品的图像尺寸为6464行乘以6400像素。

J2 VIIRS辐射计量校准L1B再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。如需更多信息，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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