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Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007 Entry ID: CIESIN_SEDAC_ICWQ_ACHLOA |
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Summary
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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
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Link:
GET DATA
Description: Data download page. |
Geographic Coverage
| N: 89.99928 | S: -90.0 | E: 179.99857 | W: -180.0 |
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Data Set Citation
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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 Online Resource: http://sedac.ciesin.columbia.edu/data/set/icwq-annual-chlorophyll-a... |
Temporal Coverage
| Start Date: 1998-01-01 |
| Stop Date: 2007-12-31 |
Location Keywords
Science Keywords
| OCEANS >COASTAL PROCESSES >COASTAL ELEVATION [Definition] |
ISO Topic Category
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OCEANS
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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
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Socioeconomic Data and Applications Center
[Information]
Data Center URL: http://sedac.ciesin.columbia.edu/ Dataset ID: CIESIN_SEDAC_ICWQ_ACHLOA
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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
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Distribution
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Distribution_Media:
ONLINE HTTP
Distribution_Size: 0.144000 Distribution_Format: GRID Fees: 0 |
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Distribution_Media:
ONLINE HTTP
Distribution_Size: 0.144000 Distribution_Format: GeoTIFF |
Personnel
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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 |
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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, http://sedac.ciesin.columbia.edu/data/set/icwq-ancillary-data
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, http://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyl...
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, http://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyl...
Creation and Review Dates
DIF Creation Date:
2010-05-28
Last DIF Revision Date:
2012-09-28
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