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

Metadata Updated: November 5, 2019

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" dataset. 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. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

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

Dates

Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Maps Download Page

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date November 5, 2019
Publisher SEDAC
Unique Identifier C179002070-SEDAC
Maintainer
undefined
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University. 2009-12-31. Indicators of Coastal Water Quality: Change in Chlorophyll-a Concentration 1998-2007. Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H48W3B88. https://doi.org/10.7927/H48W3B88.
Creator Goddard Space Flight Center - GSFC, and Center for International Earth Science Information Network - CIESIN - Columbia University
Graphic Preview Description Maps Download Page
Graphic Preview File https://sedac.ciesin.columbia.edu/data/set/icwq-change-in-chlorophyll-a-concentration-1998-2007/maps
Harvest Object Id 2a8d3150-dea4-485d-983f-95fb7f387c2f
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2009-12-31
Homepage URL https://doi.org/10.7927/H48W3B88
Language en-US
Metadata Type geospatial
Data Last Modified 2009-12-31
Program Code 026:001
Related Documents https://doi.org/10.7927/H4J96490, https://doi.org/10.7927/H4DN4300
Release Place Palisades, NY
Source Datajson Identifier True
Source Hash c63c2f12aa0955c6b169dde3c4953f8301e29530
Source Schema Version 1.1
Spatial -180.0 -90.0 180.0 90.0
Temporal 1998-01-01T00:00:00Z/2007-12-31T23:59:59Z
Category ICWQ, geospatial

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