4.7. VIIRS Frontend¶
The VIIRS Frontend operates on Science Data Record (SDR) and Environmental Data Record (EDR) files from the Suomi National Polar-orbiting Partnership’s (NPP) Visible/Infrared Imager Radiometer Suite (VIIRS) instrument. The VIIRS frontend ignores filenames and uses internal file content to determine the type of file being provided, but SDR and EDR HDF5 files are typically named as below and have corresponding geolocation files:
SVI01_npp_d20120225_t1801245_e1802487_b01708_c20120226002130255476_noaa_ops.h5
The VIIRS frontend supports all basic SDR bands created by the instrument. These are identified as the products shown
below. It supports terrain corrected or non-terrain corrected navigation files. Geolocation files must be included
when specifying filepaths to frontends and glue scripts. The VIIRS frontend can be specified to the p2g_glue script
with the frontend name viirs.
Product Name Description i01 I01 Reflectance Band i02 I02 Reflectance Band i03 I03 Reflectance Band i04 I04 Brightness Temperature Band i05 I05 Brightness Temperature Band m01 M01 Reflectance Band m02 M02 Reflectance Band m03 M03 Reflectance Band m04 M04 Reflectance Band m05 M05 Reflectance Band m06 M06 Reflectance Band m07 M07 Reflectance Band m08 M08 Reflectance Band m09 M09 Reflectance Band m10 M10 Reflectance Band m11 M11 Reflectance Band m12 M12 Brightness Temperature Band m13 M13 Brightness Temperature Band m14 M14 Brightness Temperature Band m15 M15 Brightness Temperature Band m16 M16 Brightness Temperature Band dnb Raw DNB Band (not useful for images) histogram_dnb Histogram Equalized DNB Band adaptive_dnb Adaptive Histogram Equalized DNB Band dynamic_dnb Dynamic DNB Band from Steve Miller and Curtis Seaman. Uses erf to scale the data. ifog Temperature difference between I05 and I04
Note
Terrain corrected geolocation for the DNB band has recently been added and is included in the non-TC file (GDNBO).
This may cause some confusion to users as the VIIRS frontend currently only checks for terrain corrected data. To
use non-TC data use the --no-tc flag (described below).
| author: | David Hoese (davidh) |
|---|---|
| author: | Ray Garcia (rayg) |
| organization: | Space Science and Engineering Center (SSEC) |
| copyright: | Copyright (c) 2012-2015 University of Wisconsin SSEC. All rights reserved. |
| date: | Oct 2014 |
| license: | GNU GPLv3 |
4.7.1. Command Line Arguments¶
usage: p2g_glue viirs <backend> [-h] [--list-products] [--no-tc]
[-p PRODUCTS [PRODUCTS ...]] [--adaptive-bt]
[--i-bands] [--m-bands]
- Options:
--list-products=False List available frontend products and exit --no-tc=True Don’t use terrain-corrected navigation -p, --products Specify frontend products to process --adaptive-bt Create adaptively scaled brightness temperature bands --i-bands Add all I-band raw products to list of products --m-bands Add all M-band raw products to list of products
