Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Chlorophyll-a, Aqua MODIS, NPP, East US, 2002-2012 (Monthly Composite)

    Metadata Updated: June 10, 2023

    NOAA CoastWatch distributes chlorophyll-a concentration data from NASA's Aqua Spacecraft. Measurements are gathered by the Moderate Resolution Imaging Spectroradiometer (MODIS) carried aboard the spacecraft. The algorithm currently used in processing the water leaving radiance to chlorophyll concentration has not yet been accepted as science quality. In addition, assumptions are made in the atmospheric correction in order to provide the data in a timely manner.

    Access & Use Information

    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

    Dates

    Metadata Date September 1, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 10, 2023
    Reference Date(s) July 21, 2012 (creation), July 21, 2012 (issued)
    Frequency Of Update

    Metadata Source

    Harvested from Pacific Fisheries Environmental Laboratory

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 1, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 10, 2023
    Reference Date(s) July 21, 2012 (creation), July 21, 2012 (issued)
    Responsible Party NOAA NMFS SWFSC ERD (Point of Contact)
    Contact Email
    Guid erdMEchlamday
    Access Constraints
    Bbox East Long -60.0
    Bbox North Lat 50.0
    Bbox South Lat 20.0
    Bbox West Long -90.0
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id 374bcba1-c635-4011-893a-32fbb994a8b1
    Harvest Source Id 817069b7-5f4e-4664-9e6b-615af3dfcf2d
    Harvest Source Title Pacific Fisheries Environmental Laboratory
    Licence
    Lineage NASA GSFC (OBPG) 2012-07-21T13:56:55Z NOAA CoastWatch (West Coast Node) and NOAA SFSC ERD
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-90.0, 20.0], [-60.0, 20.0], [-60.0, 50.0], [-90.0, 50.0], [-90.0, 20.0]]]}
    Progress
    Spatial Data Service Type ERDDAP griddap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2002-07-16T12:00:00Z
    Temporal Extent End 2012-06-16T00:00:00Z

    Didn't find what you're looking for? Suggest a dataset here.