Chlorophyll-a, Aqua MODIS, NPP, 0.0125°, West US, EXPERIMENTAL, 2002-present (Monthly Composite)


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.

Data and Resources

Metadata Date

Metadata Tags

GCMD Keywords

CF Standard Names

Freeform Tags

Online Access

OPeNDAP (DAP Client Access)

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OGC:WCS (OGC Web Coverage Service)

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OGC:WMS (OGC Web Map Service)

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Distribution Formats
  • OPeNDAP
Point of Contact NOAA NMFS SWFSC ERD
NOAA NMFS SWFSC ERD
erd.data@noaa.gov
Online Resource
Originator NOAA NMFS SWFSC ERD
NOAA NMFS SWFSC ERD
erd.data@noaa.gov
Online Resource
Source of level 2 data. NASA GSFC (OBPG)
Dataset Point of Contact NOAA NMFS SWFSC ERD
erd.data@noaa.gov
General Documentation
Associated Documentation CoastWatch (https://coastwatch.noaa.gov/)
Date(s) creation: 2019-12-07
issued: 2019-12-07
creation: 2019-12-07
issued: 2019-12-07
creation: 2019-12-07
issued: 2019-12-07
creation: 2019-12-07
issued: 2019-12-07
creation: 2019-12-07
issued: 2019-12-07
Use Limitations The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Time Period 2002-08-16T12:00:00Z to 2019-11-15T12:00:00Z
Spatial Bounding Box Coordinates N: 51.0° S: 22.0° E: 255.0° W: 215.0°
Theme keywords GCMD Science Keywords
  • altitude
  • aqua
  • chemistry
  • chla
  • chlorophyll
  • chlorophyll-a
  • coast
  • coastwatch
  • color
  • concentration
  • concentration_of_chlorophyll_in_sea_water
  • data
  • degrees
  • Earth Science > Oceans > Ocean Chemistry > Chlorophyll
  • experimental
  • imaging
  • moderate
  • modis
  • MWchla
  • national
  • noaa
  • node
  • npp
  • ocean
  • ocean color
  • oceans
  • orbiting
  • partnership
  • polar
  • polar-orbiting
  • resolution
  • sea
  • seawater
  • spectroradiometer
  • time
  • US
  • water
  • wcn
  • west

CF Standard Name Table v70
  • mass_concentration_of_chlorophyll_a_in_sea_water
  • altitude
  • latitude
  • longitude
  • time

Data Center keywords Uncategorized
  • NOAA NMFS SWFSC ERD

Project keywords Uncategorized
  • CoastWatch (https://coastwatch.noaa.gov/)

Use Constraints The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Lineage Statement Sat Dec 14 15:03:33 2019: /opt/conda/bin/ncks -4 -L3 -O --output=/tmp/packrat_tmp_4fb09bca2dd94318bab4b12b6f833841 /tmp/packrat_tmp_4fb09bca2dd94318bab4b12b6f833841 2019-12-14T15:00:19Z (local files) 2019-12-14T15:00:19Z http://coastwatch.pfeg.noaa.gov/erddap/griddap/erdMWchlamday.nc?chlorophyll[(2019-11-01T00:00:00Z):1:(2019-11-01T23:00:00Z)][(0.0):1:(0.0)][(22.0):1:(51.0)][(215.0):1:(255.0)]