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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Indicators of Coastal Water Quality: Change in Chlorophyll-a Concentration 1998-2007

    Metadata Updated: February 23, 2025

    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).

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    References

    https://doi.org/10.7927/H4DN4300
    https://doi.org/10.7927/H4J96490

    Dates

    Metadata Created Date February 23, 2025
    Metadata Updated Date February 23, 2025

    Metadata Source

    Harvested from nasa test json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 23, 2025
    Metadata Updated Date February 23, 2025
    Publisher SEDAC
    Maintainer
    Identifier C179002070-SEDAC
    Data First Published 2009-12-31
    Language en-US
    Data Last Modified 2025-02-19
    Category ICWQ, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 3cb02fbd-e6b0-4608-a9c6-f29275ae8753
    Harvest Source Id a73e0c30-4684-40ef-908e-d22e9e9e5f86
    Harvest Source Title nasa test json
    Homepage URL https://doi.org/10.7927/H48W3B88
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Related Documents https://doi.org/10.7927/H4DN4300, https://doi.org/10.7927/H4J96490
    Source Datajson Identifier True
    Source Hash b5a96a6cc740b6ef138e922399b145b897ae98f3606f763b2b0fd610ff715fab
    Source Schema Version 1.1
    Spatial
    Temporal 1998-01-01T00:00:00Z/2007-12-31T00:00:00Z

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