Title: This should match the data set name.
CAESAR VIIRS Satellite Channel Data

Author(s)

Name(s) of the lead author and any co-authors. Indicate lead and corresponding authors:

For all authors, provide an ORCiD if available, email address and institution/organization name

For lead and corresponding authors, provide complete mailing address, telephone numbers, title or position, and website address, if applicable

William L. Smith
CERES Cloud Working Group Lead
NASA SatCORPS Principal Investigator
Climate Science Branch (E302)
Science Directorate
NASA Langley Research Center
william.l.smith@nasa.gov


1.0 Data Set Description

Introduction or abstract:
The VIIRS image dataset has been gridded to 3-km resolution. The satellites involved include:  NPP, NOAA-20, NOAA-21
Each data file represents a composite of all NOAA-VIIRS satellites over a 2-hour period
Data version number and date: v1, 10/2024
Data Status: Final
Time period covered by the data: 02/20/2024-04/13/2014
Physical location (including lat/lon/elev) of the measurement or platform: Low Earth orbit
Data Frequency: 2-hourly. The file name has the centered composite time (0100=00:00-02:00 UTC, 0300=02:00-04:00 UTC, etc.)
Data source: VIIRS instrument
Web address references: https://satcorps.larc.nasa.gov/indexV2.html
Data set restrictions: None


2.0 Instrument Description

Brief text describing the instrument and how it collects data including references
Figures (or links), if applicable
Table of specifications (i.e., accuracy, precision, frequency, resolution, etc.)
The instruments are from satellite passive radiometers: VIIRS-1km M-bands

3.0 Data Collection and Processing

Description of data collection:
Data were collected from McIDAS ADDE servers at Univ. Wisc SSEC Data Services

Description of derived parameters and processing techniques used
The composites were derived using the best satellite view angle and time match to the centered image time.

Description of quality assurance and control procedures:
Processing was checked for missing orbit data

Data intercomparisons, if applicable
None

4.0 Data Format

Data file structure: NetCDF with corresponding PNG images
Data format and layout (i.e., description of header/data records, sample records)
List of parameters with units, sampling intervals, frequency, range
reflectance 0.67um 
reflectance 0.86um
brightness temperature 3.74um
brightness temperature 10.8um
brightness temperature 12.0um
satellite ID (119=NPP, 120=N20, 121=N21)
relative time (sec)
satellite view angle (deg)
solar zenith angle (deg)
satellite relative azimuth angle (deg)

Description of flags, codes used in the data and definitions
None

5.0 Data Remarks

PI's assessment of the data (i.e., disclaimers, instrument problems, quality issues, etc.)
Missing data periods, if applicable

Software compatibility (i.e., list of existing software to view/manipulate the data plus software repository locations/links and responsible parties' contact information)
netcdf4/hdf5

6.0 References

List of publications and documents (e.g., conference proceedings, publications, theses, reports, etc.) cited in this data set description and/or using this data set. Provide links, if available.

Minnis, P., et al., 2008: Near-real time cloud retrievals from operational and research meteorological satellites. Proc. SPIE Europe Remote Sens. 2008, Cardiff, Wales, ID, 15-18 September, 7107, No. 2, 8pp. http://satcorps.larc.nasa.gov/site/doc-library/99-Minnis.etal.SPIE.abs.08.pdf

Minnis, P. et al., "CERES Edition-2 Cloud Property Retrievals Using TRMM VIRS and Terra and Aqua MODIS Data--Part I: Algorithms," in IEEE Transactions on Geoscience and Remote Sensing, vol. 49, no. 11, pp. 4374-4400, Nov. 2011, doi: 10.1109/TGRS.2011.2144601.
 
Minnis, P. et al., "CERES MODIS Cloud Product Retrievals for Edition 4--Part I: Algorithm Changes," in IEEE Transactions on Geoscience and Remote Sensing, vol. 59, no. 4, pp. 2744-2780, April 2021, doi: 10.1109/TGRS.2020.3008866.

7.0 Appendix
None