Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007

Metadata Updated: November 5, 2019

The Annual Chlorophyll-a Concentrations component of the Indicators of Coastal Water Quality Collection consists of gridded satellite measurements of chlorophyll-a concentrations (in nanogram/cubic meter) in a band extending between 10 and 100 km from the shoreline. Chlorophyll-a concentrations are derived from NASA's Sea-viewing Wide Field-of-view Sensor (SeaWiFS). The grids are based on annual composites of SeaWiFS satellite data provided by the SeaWiFS Project, NASA/Goddard Space Flight Center and GeoEye in the form of HDF files at a resolution of 5 arc-minutes (approximately 9 x 9 km at the equator). The source files are true-color images generated from sub-sampled, calibrated, Rayleigh-corrected level-2 data, which are derived from raw radiance counts by applying sensor calibration, atmospheric corrections, and bio-optical algorithms. To arrive at chlorophyll-a concentrations, radiance counts were converted using the conversion formula provided as part of the original data files. The gridding is done by the Columbia University Center for International Earth Science Information Network (CIESIN).

Access & Use Information

Public: This dataset is intended for public access and use. 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

References

https://doi.org/10.7927/H4J96490
https://doi.org/10.7927/H48W3B88

Dates

Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Graphic Preview

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019
Publisher SEDAC
Unique Identifier C179002069-SEDAC
Maintainer
undefined
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University. 2009-12-31. Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007. Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4DN4300. https://doi.org/10.7927/H4DN4300.
Creator Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Graphic Preview File https://sedac.ciesin.columbia.edu/downloads/maps/icwq/icwq-annual-chlorophyll-a-concentration-1998-2007/sedac-logo.jpg
Harvest Object Id 5b12db9d-631a-4e1f-aa12-127311c75e62
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2009-12-31
Homepage URL https://doi.org/10.7927/H4DN4300
Language en-US
Metadata Type geospatial
Data Last Modified 2009-12-31
Program Code 026:001
Related Documents https://doi.org/10.7927/H4J96490, https://doi.org/10.7927/H48W3B88
Release Place Palisades, NY
Source Datajson Identifier True
Source Hash c8a4268508da4d96138017b3674aaf8f0adba4d4
Source Schema Version 1.1
Spatial -180.0 -90.0 180.0 90.0
Temporal 1998-01-01T00:00:00Z/2007-12-31T23:59:59Z
Category ICWQ, geospatial

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