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, L3SMI, Global, 4km, Science Quality, 2003-present (8 Day Composite)

    Metadata Updated: June 10, 2023

    This dataset has Level 3, Standard Mapped Image, 4km, chlorophyll-a concentration data from NASA's Aqua Spacecraft. Measurements are gathered by the Moderate Resolution Imaging Spectroradiometer (MODIS) carried aboard the spacecraft. This is Science Quality data. This is the August 2015 version of this dataset.

    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 3, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 10, 2023
    Reference Date(s) July 4, 2022 (creation)
    Frequency Of Update

    Metadata Source

    Harvested from Pacific Fisheries Environmental Laboratory

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 3, 2022
    Metadata Created Date November 12, 2020
    Metadata Updated Date June 10, 2023
    Reference Date(s) July 4, 2022 (creation)
    Responsible Party NASA/GSFC/OBPG (Point of Contact)
    Contact Email
    Guid erdMH1chla8day
    Access Constraints
    Bbox East Long 179.9792
    Bbox North Lat 89.97916
    Bbox South Lat -89.97917
    Bbox West Long -179.9792
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id 8c986dc9-63de-4252-8015-6c83f973aca2
    Harvest Source Id 817069b7-5f4e-4664-9e6b-615af3dfcf2d
    Harvest Source Title Pacific Fisheries Environmental Laboratory
    Licence
    Lineage Files downloaded daily from https://oceandata.sci.gsfc.nasa.gov/MODIS-Aqua/L3SMI to NOAA SWFSC ERD (erd.data@noaa.gov) ERDDAP adds the time dimension. Direct read of HDF4 file through CDM library
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-179.9792, -89.97917], [179.9792, -89.97917], [179.9792, 89.97916], [-179.9792, 89.97916], [-179.9792, -89.97917]]]}
    Progress
    Spatial Data Service Type ERDDAP griddap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2003-01-05T00:00:00Z
    Temporal Extent End 2022-06-14T00:00:00Z

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