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Indicators of Coastal Water Quality

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  • Collection Overview
  • Methods
  • Data Sets (3)
    • Change in Chlorophyll-a Concentration, v1 (1998 – 2007)
    • Ancillary Data, v1 (1998 – 2007)
    • Annual Chlorophyll-a Concentration, v1 (1998 – 2007)
  • Map Gallery (8)
  • Map Services (1)

Change in Chlorophyll-a Concentration, v1 (1998 – 2007)

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  • Data Download
  • Maps
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  • Metadata

Browse Metadata

Identification Data Quality Spatial Data Organization Spatial Reference Entity and Attribute Distribution Metadata Reference File Formats: XML, HTML, Text

Identification Information:

Citation:
Citation Information:
Originator: Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Publication Date: 20091231
Publication Time:
Title:
Indicators of Coastal Water Quality: Change in Chlorophyll-a Concentration 1998-2007
Edition: 1.00
Geospatial Data Presentation Form: tabular, map, map service
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H48W3B88
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Description:
Abstract:
The Change in Chlorophyll-a Concentrations 1998-2007 component of the Indicators of Coastal Water Quality Collection represents a tabular time series of the chlorophyll-a concentrations for each grid cell, derived from the "Indicators of Coastal Water Quality:: Annual Chlorophyll-a Concentration 1998-2007" data set. Chlorophyll-a concentrations are derived from NASA's Sea-viewing Wide Field-of-view Sensor (SeaWiFS). The grid cells are organized by country, and the percentage of change from 1998-2007 is calculated for each cell. Each time series was assessed with a linear regression, and cells with statistically significant trends in chlorophyll-a concentrations are identified. The rows of the table are linked to a sequence grid from the "Indicators of Coastal Water Quality:: Ancillary Data" collection to facilitate the mapping of the trend values for selected countries and areas of interest. The data are processed and compiled by the Columbia University Center for International Earth Science Information Network (CIESIN).
Purpose:
To provide tabular data on the trends of chlorophyll-a concentration on a pixel by pixel basis for identifying areas with improving, declining, and stable coastal water quality that can provide guidance for decision making in the context of coastal management.
Supplemental Information:
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19980101
Beginning Time:
Ending Date: 20071231
Ending Time:
Currentness Reference:
publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180.000000
East Bounding Coordinate: 180.000000
North Bounding Coordinate: 90.000000
South Bounding Coordinate: -90.000000
Data Set G-Polygon:
Data Set G-Polygon Outer G-Ring:
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Keywords:
Theme:
Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Oceans
Theme:
Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Country
Theme:
Theme Keyword Thesaurus: SEDAC Theme
Theme Keyword: Conservation
Theme Keyword: Health
Theme Keyword: Marine and Coastal
Theme Keyword: Remote Sensing
Theme Keyword: Sustainability
Theme:
Theme Keyword Thesaurus: GCMD Science Keywords, Version 8.6
Theme Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
Place:
Place Keyword Thesaurus: U.S. States and Territories
Place Keyword: Alaska
Place Keyword: Hawaii
Place:
Place Keyword Thesaurus: CIESIN Location Terms, Version 3.1
Place Keyword: Antarctica
Place Keyword: Australia
Place Keyword: Global
Place Keyword: Albania
Place Keyword: Algeria
Place Keyword: American Samoa
Place Keyword: Angola
Place Keyword: Anguilla
Place Keyword: Antigua and Barbuda
Place Keyword: Argentina
Place Keyword: Azores
Place Keyword: Bahamas
Place Keyword: Bahrain
Place Keyword: Bangladesh
Place Keyword: Barbados
Place Keyword: Belgium
Place Keyword: Belize
Place Keyword: Benin
Place Keyword: Bermuda
Place Keyword: Brazil
Place Keyword: British Indian Ocean Territory
Place Keyword: British Virgin Islands
Place Keyword: Bulgaria
Place Keyword: Cambodia
Place Keyword: Cameroon
Place Keyword: Canada
Place Keyword: Cape Verde
Place Keyword: Cayman Islands
Place Keyword: Chile
Place Keyword: China
Place Keyword: Colombia
Place Keyword: Comoros
Place Keyword: Congo
Place Keyword: Cook Islands
Place Keyword: Costa Rica
Place Keyword: Cote D'Ivoire
Place Keyword: Croatia
Place Keyword: Cuba
Place Keyword: Cyprus
Place Keyword: Denmark
Place Keyword: Djibouti
Place Keyword: Dominica
Place Keyword: Dominican Republic
Place Keyword: Ecuador
Place Keyword: Egypt
Place Keyword: El Salvador
Place Keyword: Equatorial Guinea
Place Keyword: Eritrea
Place Keyword: Estonia
Place Keyword: Faeroe Islands
Place Keyword: Falkland Islands
Place Keyword: Fiji
Place Keyword: Finland
Place Keyword: France
Place Keyword: French Guiana
Place Keyword: French Polynesia
Place Keyword: Gabon
Place Keyword: Gambia
Place Keyword: Georgia
Place Keyword: Germany
Place Keyword: Ghana
Place Keyword: Glorioso Islands
Place Keyword: Greece
Place Keyword: Greenland
Place Keyword: Grenada
Place Keyword: Guadeloupe
Place Keyword: Guatemala
Place Keyword: Guernsey
Place Keyword: Guinea
Place Keyword: Guinea-Bissau
Place Keyword: Guyana
Place Keyword: Haiti
Place Keyword: Heard Island and McDonald Islands
Place Keyword: Honduras
Place Keyword: Howland Island
Place Keyword: Iceland
Place Keyword: India
Place Keyword: Indonesia
Place Keyword: Iran
Place Keyword: Ireland
Place Keyword: Israel
Place Keyword: Italy
Place Keyword: Jamaica
Place Keyword: Japan
Place Keyword: Jarvis Island
Place Keyword: Juan de Nova Island
Place Keyword: Kuwait
Place Keyword: Latvia
Place Keyword: Lebanon
Place Keyword: Liberia
Place Keyword: Libya
Place Keyword: Lithuania
Place Keyword: Malaysia
Place Keyword: Maldives
Place Keyword: Mauritania
Place Keyword: Mauritius
Place Keyword: Mayotte
Place Keyword: Mexico
Place Keyword: Micronesia
Place Keyword: Montserrat
Place Keyword: Morocco
Place Keyword: Mozambique
Place Keyword: Myanmar
Place Keyword: Namibia
Place Keyword: Netherlands
Place Keyword: Netherland Antilles
Place Keyword: New Caledonia
Place Keyword: New Zealand
Place Keyword: Nicaragua
Place Keyword: Nigeria
Place Keyword: Niue
Place Keyword: Norfolk Island
Place Keyword: North Korea
Place Keyword: Northern Mariana Islands
Place Keyword: Norway
Place Keyword: Oman
Place Keyword: Pakistan
Place Keyword: Palau
Place Keyword: Panama
Place Keyword: Papua New Guinea
Place Keyword: Peru
Place Keyword: Philippines
Place Keyword: Pitcairn Islands
Place Keyword: Poland
Place Keyword: Portugal
Place Keyword: Puerto Rico
Place Keyword: Qatar
Place Keyword: Reunion
Place Keyword: Romania
Place Keyword: Russia
Place Keyword: St Helena
Place Keyword: St Kitts and Nevis
Place Keyword: St Lucia
Place Keyword: St Vincent and The Grenadines
Place Keyword: Samoa
Place Keyword: Sao Tome and Principe
Place Keyword: Saudi Arabia
Place Keyword: Senegal
Place Keyword: Serbia
Place Keyword: Seychelles
Place Keyword: Sierra Leone
Place Keyword: Solomon Islands
Place Keyword: Somalia
Place Keyword: South Africa
Place Keyword: South Georgia Island
Place Keyword: South Korea
Place Keyword: South Sandwich Islands
Place Keyword: South Sudan
Place Keyword: Spain
Place Keyword: Sri Lanka
Place Keyword: Suriname
Place Keyword: Sweden
Place Keyword: Syrian Arab Republic
Place Keyword: Taiwan
Place Keyword: Tanzania
Place Keyword: Thailand
Place Keyword: Togo
Place Keyword: Tokelau
Place Keyword: Tonga
Place Keyword: Trinidad and Tobago
Place Keyword: Tunisia
Place Keyword: Turkey
Place Keyword: Turks and Caicos Islands
Place Keyword: Tuvalu
Place Keyword: Ukraine
Place Keyword: United Arab Emirates
Place Keyword: United Kingdom
Place Keyword: United States of America
Place Keyword: Uruguay
Place Keyword: Vanuatu
Place Keyword: Venezuela
Place Keyword: Vietnam
Place Keyword: Wake Islands
Place Keyword: Wallis and Futuna Islands
Place Keyword: Western Sahara
Place Keyword: Yemen
Place Keyword: Bouvet Island
Place Keyword: Jersey
Place Keyword: Kenya
Place Keyword: Madagascar
Stratum:
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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 data set. 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.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
Contact Person:
Contact Position:
Contact Address:
Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Browse Graphic:
Browse Graphic File Name: https://sedac.ciesin.columbia.edu/downloads/maps/icwq/icwq-change-in-chlorophyll-a-concentration-1998-2007/chlorophyll-a-trends-1998-2007-black-sea-thumbnail.jpg
Browse Graphic File Description:
% Chlorophyll-a Concentration Change (1998-2007): Black Sea
Browse Graphic File Type: JPEG
Data Set Credit:
Security Information:
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Cross Reference:
Citation Information:
Originator: Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Publication Date: 20091231
Publication Time:
Title:
Indicators of Coastal Water Quality: Annual Chlorophyll-a Concentration 1998-2007
Edition: 1.00
Geospatial Data Presentation Form: raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4DN4300
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Citation Information:
Originator: Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Publication Date: 20091231
Publication Time:
Title:
Indicators of Coastal Water Quality: Ancillary Data
Edition: 1.00
Geospatial Data Presentation Form: vector, raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: https://doi.org/10.7927/H4J96490
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Data Quality Information:

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Process Step:
Process Description:
Yearly concentrations contained in "Indicators of Coastal Water Quality:: Annual Chlorophyll-a Concentration 1998-2007" were combined into a time series table, and the following statistics were calculated to characterize trends over time: slope of regression of chlorophyll-a concentration on year (SLOPE), r-square values of regression (R2), change in percent between 1998 and 2007 (expressed relative to 1998) (CHANGE), and p-value of regression (P). Percentage change from all grid cells showing significant trends were combined in the column SCHANGE, and cells with non-significant trends were given the value -999999. Region assignments followed UN classifications. For more details on procedures, see project documentation available at http://sedac.ciesin.columbia.edu/es/seawifs.html.
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Spatial Data Organization Information:

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Entity and Attribute Information:

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Distribution Information:

Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
Contact Person:
Contact Position:
Contact Address:
Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Resource Description: CIESIN_SEDAC_ICWQ_CCHLOA
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.
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Fees: 0
Ordering Instructions:
The data in Comma-Separated Values File (.csv), and Microsoft Excel (.xls) formats; the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
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Format Name: Excel
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File Decompression Technique: Unzip
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Computer Contact Information:
Network Address:
Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/data-download
Access Instructions:
Data accessible via the data set landing page.
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Format Name: CSV
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/data-download
Access Instructions:
Data accessible via the data set landing page.
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/maps
Access Instructions:
Maps accessible via the data set landing page.
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Format Name: PNG
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/maps
Access Instructions:
Maps accessible via the data set landing page.
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Format Name: WMS
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Network Resource Name: https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/maps/services
Access Instructions:
Web Map Services accessible via the data set landing page.
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Beginning Date: 20091231
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Ending Date: Present
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Metadata Reference Information:

Metadata Date: 20090715
Metadata Review Date: 20220831
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration
Contact Person:
Contact Position:
Contact Address:
Address Type: mailing and physical address
Address:
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8988
Contact TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: metadata@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: universal time
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