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

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).

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated April 23, 2025, 19:55 (UTC)
Created April 23, 2025, 19:55 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo 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. Version 1.00. 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 56c001f8-b9f3-4c5f-b5b2-d64c0683b88c
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C179002070-SEDAC
issued 2009-12-31
landingPage https://doi.org/10.7927/H48W3B88
language {en-US}
metadata_type geospatial
modified 2009-12-31
programCode {026:001}
publisher SEDAC
references {https://doi.org/10.7927/H4DN4300,https://doi.org/10.7927/H4J96490}
release-place Palisades, NY
resource-type Dataset
source_datajson_identifier true
source_hash 6aa1818de86784d20fcd8d3c74dcfd2e4c46c065d021a813189734918bbfda9d
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 1998-01-01T00:00:00Z/2007-12-31T00:00:00Z
theme {ICWQ,geospatial}