MODIS/Aqua Level 3 Global Ocean Mapped 4 KM Monthly Ocean Color Products
Entry ID: OBPG_MODIS_AQUA_L3_M4M_OC

[ Get Data ]
[ Update this Record ]

Summary
Abstract: This data set consists of satellite measurements of global ocean color data
obtained by the Moderate Resolution Imaging Spectroradiometer (MODIS), in orbit
on the Aqua (formerly EOS PM) platform. MODIS ocean color products are
processed and distributed by the Ocean Biology Processing Group (OBPG).
Processing details can be found at
http://oceancolor.gsfc.nasa.gov/DOCS/MODISA_processing.html

The Aqua MODIS Level 3 standard mapped image (SMI) products are integer
representations of binned data products. This image is an 8-bit,
two-dimensional array of an Equidistant Cylindrical projection of the globe.
(The capability to produce 16-bit SMI products has been implemented by the
OBPG, and the MODIS Ocean Color products are expected to be regenerated as
16-bits values at the next reprocessing in about 1 year.) Each SMI product
contains one image of a geophysical parameter and is stored in one physical HDF
file. The Level 3 binned products are used to generate mapped data products on
4 and 9 km equi-rectangular projection. The products are generated for the
following binning periods: Daily, 8-Day, Monthly, Monthly Climatology,
Seasonal, Seasonal Climatology, Annual, Cumulative.

Five SMI products are generated from each standard Ocean Color binned data
product, one for each of the following geophysical parameters:

-Chlorophyll-a concentration (CHLO)
-Normalized water-leaving radiance at band 5 (L551)
-Aerosol optical thickness at band 8 for atmospheric correction (T869)
-Angstrom coefficient, 531-869 nm, for atmospheric correction (A531)
-Diffuse attenuation coefficient at 490 nm (measure of optical clarity) (K490)

Each SMI product represents data binned over the period covered by the parent
product. The arithmetic mean is used in each case to obtain the values for the
SMI grid points from the binned data products.

More detailed information on the Level-3 Standard Mapped Image data product
format specifications can be found in the document at
http://oceancolor.gsfc.nasa.gov/DOCS/Ocean_Level-3_SMI_Products.pdf

Please, read the MODIS Ocean Parent document for more details:
http://gcmd.nasa.gov/getdif.htm?MODIS_OCEAN_PARENT

Browse Level 3 Standard Mapped Images (SMI) at
http://oceancolor.gsfc.nasa.gov/cgi/level3.pl

The Aqua MODIS Level 3 Mapped data files are available from the FTP site at
ftp://oceans.gsfc.nasa.gov/MODISA/Mapped/

Related URL
Link: GET DATA
Description: Access MODIS/Aqua Level 3 Mapped 4 KM Monthly Ocean Color Data


Link: GET DATA
Description: Browse Level 3 Standard Mapped Images


Link: GET RELATED SERVICE METADATA (SERF)
Description: SeaWiFS Data Analysis System (SeaDAS) for processing, display, analysis, and
quality control of ocean products.


Link: VIEW PROJECT HOME PAGE
Description: MODIS WEB


Link: VIEW RELATED INFORMATION
Link: VIEW RELATED INFORMATION
Description: Data and Processing documentation


Parent DIF
This data set description is a member of a collection. The collection is described in
MODIS_OCEAN_PARENT


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Temporal Coverage
Start Date: 2002-07-04


Location Keywords
OCEAN > ARCTIC OCEAN
OCEAN > ATLANTIC OCEAN
OCEAN > INDIAN OCEAN
OCEAN > SOUTHERN OCEAN
OCEAN > PACIFIC OCEAN
GEOGRAPHIC REGION > GLOBAL
GEOGRAPHIC REGION > GLOBAL OCEAN
GEOGRAPHIC REGION > POLAR


Data Resolution
Latitude Resolution: 4 km
Longitude Resolution: 4 km
Temporal Resolution: Monthly


Science Keywords
ATMOSPHERE >AEROSOLS >AEROSOL BACKSCATTER >AEROSOL REFLECTANCE    [Definition]
ATMOSPHERE >AEROSOLS >AEROSOL EXTINCTION    [Definition]
ATMOSPHERE >AEROSOLS >AEROSOL OPTICAL DEPTH/THICKNESS >AEROSOL OPTICAL THICKNESS    [Definition]
ATMOSPHERE >AEROSOLS >AEROSOL RADIANCE    [Definition]
OCEANS >OCEAN CHEMISTRY >PIGMENTS    [Definition]
OCEANS >OCEAN OPTICS >ATTENUATION/TRANSMISSION    [Definition]
OCEANS >OCEAN OPTICS >EXTINCTION COEFFICIENTS >DIFFUSE ATTENUATION COEFFICIENT    [Definition]
OCEANS >OCEAN OPTICS >OCEAN COLOR    [Definition]
OCEANS >OCEAN OPTICS >WATER-LEAVING RADIANCE >NORMALIZED WATER-LEAVING RADIANCE    [Definition]
OCEANS >OCEAN CHEMISTRY >PIGMENTS >CHLOROPHYLL    [Definition]
OCEANS >OCEAN CHEMISTRY >PIGMENTS >CHLOROPHYLL >CHLOROPHYLL-A    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
OCEANS


Platform
AQUA >Earth Observing System, AQUA    [Information]


Instrument
MODIS >Moderate-Resolution Imaging Spectroradiometer    [Information]


Project
EOS >Earth Observing System    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]


Access Constraints
None


Use Constraints
Publications of research results utilizing these data must acknowledge the
Ocean Biology Processing Group (OBPG) at the NASA Goddard Space Flight Center,
Greenbelt, MD, USA.


Data Set Progress
IN WORK


Originating Center
OBPG


Data Center
Ocean Biology Processing Group (OBPG), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA    [Information]
Data Center URL: http://oceancolor.gsfc.nasa.gov/
Dataset ID: Level 3 Mapped Daily

Data Center Personnel
Name: GENE CARL FELDMAN
Phone: (301) 286-9428
Fax: (301) 286-0268
Email: gene.c.feldman at nasa.gov
Contact Address:
Data System Manager
NASA/Goddard Space Flight Center
Mailstop 614.8
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA



Distribution
Distribution_Media: FTP
Distribution_Format: HDF


Personnel
MELANIE F. MEAUX
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov


GENE CARL FELDMAN
Role: TECHNICAL CONTACT
Phone: (301) 286-9428
Fax: (301) 286-0268
Email: gene.c.feldman at nasa.gov
Contact Address:
Data System Manager
NASA/Goddard Space Flight Center
Mailstop 614.8
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


DR. CHARLES R. MCCLAIN
Role: INVESTIGATOR
Phone: 301-286-5377
Fax: 301-286-0268
Email: Charles.R.McClain at nasa.gov
Contact Address:
NASA/Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA



Creation and Review Dates
DIF Creation Date: 2005-10-25
Last DIF Revision Date: 2006-04-11

[ Update this Record ]


Link to Web Site