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

[ Get Data ]
[ Update this Record ]

Summary
Abstract: 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).

The data in ArcGIS GRID and Tagged Image File Format (TIFF) and American Standard Code for Information Interchange (ASCII) formats are available from the from the NASA Socioeconomic Data and Applications Center (SEDAC).


Purpose: To provide a gridded version of existing SeaWiFS data in GIS-compatible formats in order to determine concentrations of chlorophyll-a in the coastal water column and to facilitate the integration with other data.

Related URL
Link: GET DATA
Description: Data download page.


Link: GET DATA > ECHO
Description: Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.


Geographic Coverage
 N: 89.99928 S: -90.0  E: 179.99857  W: -180.0

Data Set Citation
Dataset Originator/Creator: Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Dataset Title: Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007
Dataset Release Date: 2009
Dataset Release Place: Palisades, NY
Dataset Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Version: 1.00
Data Presentation Form: raster, maps
Dataset DOI: http://dx.doi.org/10.7927/H4DN4300


Temporal Coverage
Start Date: 1998-01-01
Stop Date: 2007-12-31


Location Keywords
CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA
CONTINENT > AFRICA
CONTINENT > ASIA
GEOGRAPHIC REGION > OCEANIA
CONTINENT > EUROPE
CONTINENT > NORTH AMERICA
GEOGRAPHIC REGION > EQUATORIAL
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > MID-LATITUDE
GEOGRAPHIC REGION > POLAR
CONTINENT > SOUTH AMERICA


Science Keywords
OCEANS >COASTAL PROCESSES >COASTAL ELEVATION    [Definition]


ISO Topic Category
OCEANS


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
ICWQ >Indicators of Coastal Water Quality    [Information]


Access Constraints
None


Use Constraints
The Goddard Space Flight Center (GSFC) and Trustees of Columbia University in the City of New York hold the copyright of this dataset. Users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from GSFC or CIESIN. Users should acknowledge GSFC and CIESIN as the source used in the creation of any reports, publications, new data sets, derived products, or services resulting from the use of this data set. GSFC or CIESIN also request reprints of any publications and notification of any redistributing efforts.


Keywords
Environment


Data Set Progress
COMPLETE


Originating Center
SEDAC


Data Center
Socioeconomic Data and Applications Center    [Information]
Data Center URL: http://sedac.ciesin.columbia.edu/
Dataset ID: CIESIN_SEDAC_ICWQ_ACHLOA

Data Center Personnel
Name: SEDAC USER SERVICES
Phone: +1 845-365-8920
Fax: +1 845-365-8922
Email: ciesin.info at ciesin.columbia.edu
Contact Address:
61 Route 9W, P.O. Box 1000
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


World Data Center for Human Interactions in the Environment    [Information]
Data Center URL: http://sedac.ciesin.columbia.edu/wdc/
Dataset ID: CIESIN_SEDAC_ICWQ_ACHLOA

Data Center Personnel
Name: ROBERT CHEN
Phone: 1-845-365-8952
Fax: 1-845-365-8922
Email: bchen at ciesin.columbia.edu
Contact Address:
WDC for Human Interactions in the Environment
CIESIN/Columbia University
P. O. Box 1000
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA



Distribution
Distribution_Media: ONLINE HTTP
Distribution_Size: 0.144000
Distribution_Format: GRID
Fees: 0

Distribution_Media: ONLINE HTTP
Distribution_Size: 0.144000
Distribution_Format: GeoTIFF


Personnel
SEDAC USER SERVICES
Role: TECHNICAL CONTACT
Phone: +1 845-365-8920
Fax: +1 845-365-8922
Email: ciesin.info at ciesin.columbia.edu
Contact Address:
61 Route 9W, P.O. Box 1000
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


CIESIN METADATA ADMINISTRATION
Role: DIF AUTHOR
Phone: +1 845-365-8988
Fax: +1 845-365-8922
Email: metadata at ciesin.columbia.edu
Contact Address:
61 Route 9W, P.O. Box 1000
City: Palisades
Province or State: New York
Postal Code: 10964
Country: USA


Publications/References
Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University (2009), Indicators of Coastal Water Quality: Ancillary Data, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, doi:http://dx.doi.org/10.7927/H4J96490

Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University (2009), Indicators of Coastal Water Quality: Change in Chlorophyll-a Concentration 1998-2007, NASA Socioeconomic Data and Applications Center (SEDAC), Palisades, NY, doi:http://dx.doi.org/10.7927/H48W3B88

VLIZ (2006), Maritime Boundaries Geodatabase, http://www.vliz.be/vmdcdata/marbound

Creation and Review Dates
DIF Creation Date: 2010-05-28
Last DIF Revision Date: 2014-06-06

[ Update this Record ]


Link to Web Site