SeaWiFS Level 3 Global Standard Mapped Product Suite

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: SeaWiFS Level 3 Global Standard Mapped Product Suite
Description:
Abstract:
This data set consists of satellite measurements of global ocean color, photosynthetically Active Radiation (PAR) and Normalized Difference Vegetation Index (NDVI) data obtained by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS), in orbit on the OrbView-2 (formerly SeaStar) platform. SeaWiFS 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/SW_proc.html 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. Visible and near infrared raw radiance counts are collected (Level 1A data) and are converted to geophysical parameters (Level 2 data). Level 3 (9 km) data processing involves both temporal and spatial binning and utilizes Level 2 Global Area Coverage (GAC) (4 km) data as input. The SeaWiFS 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 SeaWiFS 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 9 km equi-rectangular projection (and 4 km for NDVI products). 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 (L555) -Aerosol optical thickness at band 8 for atmospheric correction (T865) -Angstrom coefficient, 510-865 nm, for atmospheric correction (A510) -Diffuse attenuation coefficient at 490 nm (measure of optical clarity) (K490) Other SMI products: -SeaWiFS Level 3 PAR refers to false-colored images of Photosynthetically Active Radiation (PAR) from the sun 400-700 nm. For additional information about the PAR algorithm see http://oceancolor.gsfc.nasa.gov/DOCS/seawifs_par_wfigs.pdf -SeaWiFS NDVI refers to images of the Normalized Difference Vegetation Index - an indicator of chlorophyll distributions on land (NDVI) 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 Browse Level 3 Standard Mapped Images (SMI) at http://oceancolor.gsfc.nasa.gov/cgi/level3.pl The SeaWiFS Level 3 Mapped data files are available from the FTP site at ftp://oceans.gsfc.nasa.gov/SeaWiFS/Mapped/
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19970901
Ending_Date: Unknown
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 90.0
South_Bounding_Coordinate: -90.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL BACKSCATTER > AEROSOL REFLECTANCE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL EXTINCTION
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS > AEROSOL OPTICAL THICKNESS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL RADIANCE
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION INDEX > NDVI
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN OPTICS > EXTINCTION COEFFICIENTS > DIFFUSE ATTENUATION COEFFICIENT
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN OPTICS > OCEAN COLOR
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION > PAR
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN OPTICS > WATER-LEAVING RADIANCE > NORMALIZED WATER-LEAVING RADIANCE
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL
Theme_Keyword: EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL > CHLOROPHYLL-A
Theme_Keyword: SEASTAR > ORBITAL SCIENCES CORPORATION ORBVIEW-2 SATELLITE
Theme_Keyword: SEAWIFS > SEA-VIEWING WIDE FIELD-OF-VIEW SENSOR
Theme_Keyword: EOS > EARTH OBSERVING SYSTEM
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: SEAWIFS > SEA-VIEWING WIDE FIELD-OF-VIEW SENSOR
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > ARCTIC OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN
Place_Keyword: OCEAN > INDIAN OCEAN
Place_Keyword: OCEAN > SOUTHERN OCEAN
Place_Keyword: OCEAN > PACIFIC OCEAN
Place_Keyword: GEOGRAPHIC REGION > GLOBAL
Place_Keyword: GEOGRAPHIC REGION > GLOBAL OCEAN
Place_Keyword: GEOGRAPHIC REGION > POLAR
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Monthly Climatology
Temporal_Keyword: Monthly Climatology
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 Users.
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.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GENE CARL FELDMAN
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Data System Manager
Address: NASA/Goddard Space Flight Center
Address: Mailstop 614.8
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 286-9428
Contact_Facsimile_Telephone: (301) 286-0268
Contact_Electronic_Mail_Address: gene.c.feldman@nasa.gov
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 4, 9 km
Longitude_Resolution: 4, 9 km
Geographic_Coordinate_Units: Decimal degrees
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/GSFC/SED/ESD/GCDC/OBPG > Ocean Biology Processing Group (OBPG), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
Contact_Person: GENE CARL FELDMAN
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Data System Manager
Address: NASA/Goddard Space Flight Center
Address: Mailstop 614.8
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 286-9428
Contact_Facsimile_Telephone: (301) 286-0268
Contact_Electronic_Mail_Address: gene.c.feldman@nasa.gov
Resource_Description: OBPG_SEAWIFS_L3_MAPPED
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: HDF
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://oceancolor.gsfc.nasa.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://oceans.gsfc.nasa.gov/SeaWiFS/Mapped/
Access_Instructions:
Access SeaWiFS Level 3 Mapped Data
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://oceancolor.gsfc.nasa.gov/cgi/level3.pl
Access_Instructions:
Browse Level 3 Standard Mapped Images
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://gcmd.nasa.gov/getserf.htm?SeaDAS
Access_Instructions:
SeaWiFS Data Analysis System (SeaDAS) for processing, display, analysis, and quality control of ocean products.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://gcmd.nasa.gov/getserf.htm?Giovanni-Ocean-Co...
Access_Instructions:
Ocean Color Time-Series Online Visualization and Analysis System (Giovanni)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://oceancolor.gsfc.nasa.gov/SeaWiFS/
Access_Instructions:
SeaWIFS Project
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://oceancolor.gsfc.nasa.gov/DOCS/http://oceanc...
Access_Instructions:
Data and Processing documentation
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.rspsoc.org/documents/uploads/April2005....
Access_Instructions:
Ocean Color Forum
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20051025
Metadata_Review_Date: 20080520
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MELANIE F. MEAUX
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Electronic_Mail_Address: gsfc-gcmduso@mail.nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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