Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University
Publication Date: 2009
Title: Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007
Geospatial Data Presentation Form: raster digital data, maps
Publication Information:
Publication Place: Palisades, NY
Publisher: Socioeconomic Data and Applications Center (SEDAC), Columbia University
Online Linkage: http://sedac.ciesin.columbia.edu/es/seawifs.html
Description:
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. 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).
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.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1998
Ending Date: 2007
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180.000000
East Bounding Coordinate: 179.998560
North Bounding Coordinate: 89.999280
South Bounding Coordinate: -90.000000
Keywords:
Theme:
Theme Keyword Thesaurus: General
Theme Keyword: Chlorophyll
Theme Keyword: Coastal Zones
Theme Keyword: SeaWiFS
Theme:
Theme Keyword Thesaurus: NASA Mission
Theme Keyword: Environmental Sustainability (ES)
Theme:
Theme Keyword Thesaurus: Project
Theme Keyword: Environmental Sustainability Index (ESI)
Theme:
Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Oceans
Theme:
Theme Keyword Thesaurus: NBII Node
Theme Keyword: Northeast Information Node (NIN)
Theme:
Theme Keyword Thesaurus: SEDAC Topic
Theme Keyword: Sustainability Indicators
Theme:
Theme Keyword Thesaurus: WDC Theme
Theme Keyword: Sustainability
Theme:
Theme Keyword Thesaurus: CIESIN Indexing Vocabulary Version 2.1 (GCMD Format)
Theme Keyword: CIESIN > Environmental Protection > Water Forms > Coastal Zones
Theme:
Theme Keyword Thesaurus: GCMD Parameter Valids
Theme Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coastal Elevation
Theme:
Theme Keyword Thesaurus: CSA-NBII Biocomplexity
Theme Keyword: Coastlines
Theme:
Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Country
Theme:
Theme Keyword Thesaurus: EI Gateway Vocabulary
Theme Keyword: Oceanography
Theme:
Theme Keyword Thesaurus: GIS Format
Theme Keyword: GIS
Place:
Place Keyword Thesaurus: CIESIN Location Terms, version 2.0
Place Keyword: Continent/Region > Africa
Place Keyword: Continent/Region > Asia
Place Keyword: Continent/Region > Australia
Place Keyword: Continent/Region > Equatorial
Place Keyword: Continent/Region > Europe
Place Keyword: Continent/Region > Global
Place Keyword: Continent/Region > Mid-Latitude
Place Keyword: Continent/Region > North America
Place Keyword: Continent/Region > Oceania
Place Keyword: Continent/Region > Polar
Place Keyword: Continent/Region > South America
Access Constraints: None
Use Constraints:
The 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 CIESIN. Users should acknowledge 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. CIESIN also request reprints of any publications and notification of any redistributing efforts.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Socioeconomic Data and Applications Center (SEDAC) User Services
Contact Address:
Address Type: mailing and physical address
Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: NY
Postal Code: 10964
Country: USA
Contact Voice Telephone: +1 845-365-8920
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Cross Reference:
Citation Information:
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University
Publication Date: 2009
Title: Indicators of Coastal Water Quality: Change in Chlorophyll-a Concentration 1998-2007
Geospatial Data Presentation Form: tabular digital data
Publication Information:
Publication Place: Palisades, NY
Publisher: Socioeconomic Data and Applications Center (SEDAC), Columbia University
Online Linkage: http://sedac.ciesin.columbia.edu/es/seawifs.html
Cross Reference:
Citation Information:
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University
Publication Date: 2009
Title: Indicators of Coastal Water Quality: Ancillary Data
Geospatial Data Presentation Form: vector digital data, raster digital data
Publication Information:
Publication Place: Palisades, NY
Publisher: Socioeconomic Data and Applications Center (SEDAC), Columbia University
Online Linkage: http://sedac.ciesin.columbia.edu/es/seawifs.html
Data Quality Information
Section Index
Lineage:
Process Step:
Process Description:
To produce this data set CIESIN converted SeaWiFS data from their original HDF format into ESRI GRID, clipped grids to remove all but the grid cells 10-100 km from the coastline, and converted radiances to chlorophyll-a concentrations (in nanograms/cubic meter).
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Raster
Raster Object Information:
Raster Object Type: Grid Cell
Row Count: 944
Column Count: 276
Vertical Count: 1
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: Other Grid System's Definition
Other Grid System's Definition:
Other Grid System's Definition: Geographic
Planar Coordinate Information:
Planar Coordinate Encoding Method: Row and Column
Coordinate Representation:
Abscissa Resolution: 0.008333
Ordinate Resolution: 0.008333
Planar Distance Units: meters
Geodetic Model:
Horizontal Datum Name: WGS84
Ellipsoid Name: WGS84
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257224
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Socioeconomic Data and Applications Center (SEDAC) User Services
Contact Address:
Address Type: mailing and physical address
Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: NY
Postal Code: 10964
Country: USA
Contact Voice Telephone: +1 845-365-8920
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Resource Description: CIESIN_SEDAC_SEAWIFS_ACHLOA
Distribution Liability:
CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN.
Standard Order Process:
Ordering Instructions:
The data and maps are available from the from the Socioeconomic Data and Applications Center (SEDAC) in ArcGIS GRID and Tagged Image File Format (TIFF) and American Standard Code for Information Interchange (ASCII) formats via direct download at http://sedac.ciesin.coumbia.edu/es/seawifs.html.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: GRID
File Decompression Technique: unzip
Transfer Size: 0.144000
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Maps are accessible via direct download.
Digital Form:
Digital Transfer Information:
Format Name: GeoTIFF
File Decompression Technique: unzip
Transfer Size: 0.144000
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Maps are accessible via direct download.
Available Time Period:
Metadata Reference Information
Section Index
Metadata Date: 2009/07/13
Metadata Review Date: 2010/03/11
Metadata Future Review Date: 2011/03/11
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Person: CIESIN Metadata Administration
Contact Organization: Center for International Earth Science Information Network at Columbia University
Contact Address:
Address Type: Mailing
Address: P.O. Box 1000
City: Palisades
State or Province: NY
Postal Code: 10030
Country: USA
Contact Electronic Mail Address: metadata@ciesin.columbia.edu
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
GeoMedia
Catalog report generated Thursday, March 11, 2010