Identification_Information: Citation: Citation_Information: Originator: Goddard Space Flight Center (GSFC), and 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 Edition: 1.00 Geospatial_Data_Presentation_Form: tabular, map Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: http://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007 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. 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: 180.000000 North_Bounding_Coordinate: 90.000000 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: ISO Topic Theme_Keyword: Oceans 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 Characteristics > Salt Water Theme_Keyword: CIESIN > Environmental Protection > Water Forms > Coastal Waters Theme_Keyword: CIESIN > Environmental Protection > Water Forms > Coastal Zones Theme_Keyword: CIESIN > Environmental Protection > Water Forms > Oceans Theme_Keyword: CIESIN > Environmental Protection > Water Quality Theme: Theme_Keyword_Thesaurus: GCMD Parameter Valids Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Pigments > Chlorophyll 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: Conservation Place: Place_Keyword_Thesaurus: CIESIN Location Terms, version 2.0 Place_Keyword: Region > Equatorial Place_Keyword: Global Place_Keyword: Region > Mid-Latitude Place_Keyword: Continent > North America Place_Keyword: Region > Oceania Place_Keyword: Region > Polar Place_Keyword: Continent > South America 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_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: Goddard Space Flight Center (GSFC), and 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 Edition: 1.00 Geospatial_Data_Presentation_Form: raster Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: http://sedac.ciesin.columbia.edu/data/set/icwq-annual-chlorophyll-a-concentration-1998-2007 Cross_Reference: Citation_Information: Originator: Goddard Space Flight Center (GSFC), and Center for International Earth Science Information Network (CIESIN)/Columbia University Publication_Date: 2009 Title: Indicators of Coastal Water Quality: Ancillary Data Edition: 1.00 Geospatial_Data_Presentation_Form: vector, raster Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: http://sedac.ciesin.columbia.edu/data/set/icwq-ancillary-data Data_Quality_Information: Lineage: 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. Spatial_Data_Organization_Information: Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: NASA Socioeconomic Data and Applications Center (SEDAC) 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_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. Standard_Order_Process: Ordering_Instructions: The data in Microsoft Excel (XLS)and Comma Separated Values (CSV), and maps in Portable Document Format (PDF) and Joint Photographic Experts Group (JPG) formats are available from the from the NASA Socioeconomic Data and Applications Center (SEDAC). Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: XLSX, CSV File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/data-download Access_Instructions: Data accessible via direct download. Digital_Form: Digital_Transfer_Information: Format_Name: PDF, PNG Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/maps Access_Instructions: Maps accesible via direct download. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Metadata_Reference_Information: Metadata_Date: 20090715 Metadata_Review_Date: 20130228 Metadata_Future_Review_Date: 20140228 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration 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: +1 845-365-8988 Contact_Facsimile_Telephone: +1 845-365-8922 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