Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

VIIRSN, Suomi-NPP, Level-3 SMI, Global, 4km, K490, 2012-2014, DEPRECATED OLDER VERSION, 8-Day

Metadata Updated: June 10, 2023

THIS VERSION IS DEPRECATED. (Dec 2014) SEE THE NEW erdVH2018 VERSION. VIIRSN Level-3 Standard Mapped Image (SMI), Global, 4km, Diffuse Attenuation Coefficient K490, 8-Day composite data from the Visible and Infrared Imager/Radiometer Suite (VIIRS). VIIRS is a multi-disciplinary instrument that flies on the Suomi-NPP (National Polar-orbiting Partnership) satellite. Suomi-NPP is the initial spacecraft in the JPSS (Joint Polar Satellite Systems) series of spacecraft. JPSS is our Nation's next generation polar-orbiting operational environmental satellite system. JPSS is a collaborative program between NOAA and its acquisition agent NASA. VIIRS is the successor to MODIS for Earth science data product generation. THIS IS AN EXPERIMENTAL PRODUCT: intended strictly for scientific evaluation by professional marine scientists.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Date August 29, 2022
Metadata Created Date July 21, 2022
Metadata Updated Date June 10, 2023
Reference Date(s) August 29, 2022 (creation)
Frequency Of Update

Metadata Source

Harvested from Pacific Fisheries Environmental Laboratory

Additional Metadata

Resource Type Dataset
Metadata Date August 29, 2022
Metadata Created Date July 21, 2022
Metadata Updated Date June 10, 2023
Reference Date(s) August 29, 2022 (creation)
Responsible Party NASA/GSFC OBPG (Point of Contact)
Contact Email
Guid erdVHk4908day
Access Constraints
Bbox East Long 179.97917
Bbox North Lat 89.979164
Bbox South Lat -89.97917
Bbox West Long -179.97917
Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
Frequency Of Update
Harvest Object Id fb83b0ae-fb06-4d85-8913-9f550c0b751c
Harvest Source Id 817069b7-5f4e-4664-9e6b-615af3dfcf2d
Harvest Source Title Pacific Fisheries Environmental Laboratory
Lineage Datafiles are downloaded ASAP from to NOAA NMFS SWFSC ERD. NOAA NMFS SWFSC ERD ( uses NCML to add latitude and longitude variables and slightly modify the metadata. Direct read of HDF4 file through CDM library.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-179.97917, -89.97917], [179.97917, -89.97917], [179.97917, 89.979164], [-179.97917, 89.979164], [-179.97917, -89.97917]]]}
Spatial Data Service Type ERDDAP griddap
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2012-01-01T12:00:00Z
Temporal Extent End 2014-11-17T12:00:00Z

Didn't find what you're looking for? Suggest a dataset here.