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SeaWiFS Level 2 Global Area Coverage (GAC), Local Area Coverage (LAC), and Merged LAC (MLAC) Data Products

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Abstract: This data set consists of global satellite measurements by the Sea-viewing Wide
Field-of-view Sensor (SeaWiFS), in orbit on the OrbView-2 (formerly SeaStar)
platform. SeaWiFS acquires approximately 15 pole-to-pole orbital swaths of
data per day, and approximately 90% of the ocean surface is scanned every two
days. SeaWiFS products are processed and distributed by the Ocean Biology
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Description: Browse Level 2 Data Products (GAC, LAC, MLAC)
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Temporal Coverage
Start Date: 1997-09-01
Data Resolution
Latitude Resolution: 4 km
Longitude Resolution: 4 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Temporal Resolution Range: Hourly - < Daily
Access Constraints From the start of instrument operations through January 1, 1998, all SeaWiFS
data is free and available to the public. Following January 1, 1998, SeaWiFS
data for scientific research will ONLY be available to Authorized Users who
have registered with the SeaWiFS Project. Any individual scientist who will be
conducting research that employs SeaWiFS data must be a registered Authorized
User. A single Authorized User cannot obtain data to be used anonymously by
members of a research group; all of the members of the group must be Authorized
Use Constraints Publications of research results utilizing these data must acknowledge the
SeaWiFS Project and the Ocean Biology Processing Group (OBPG) at the NASA
Goddard Space Flight Center, Greenbelt, MD, USA.
Data Set Progress
Originating Center
Data Center
Ocean Biology Processing Group (OBPG), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Data Center URL:
Dataset ID: SeaWiFS Level 2 GAC
Dataset ID: SeaWiFS Level 2 LAC
Dataset ID: SeaWiFS Level 2 MLAC

Data Center Personnel
Phone: (301) 286-9428
Fax: (301) 286-0268
Email: gene.c.feldman at
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 Media: FTP
Distribution Format: HDF
Email: gsfc-gcmduso at
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2005-10-25
Last DIF Revision Date: 2006-04-11
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