MODIS/Aqua and SeaWiFS Level 3 9KM Yearly Merged Chlorophyll Product

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: MODIS/Aqua and SeaWiFS Level 3 9KM Yearly Merged Chlorophyll Product
Description:
Abstract:
This data set consists of merged satellite measurements of global ocean chlorophyll data derived from the Moderate Resolution Imaging Spectroradiometer (MODIS), in orbit on the Aqua (formerly EOS PM) platform, and the Sea-viewing Wide Field-of-view Sensor (SeaWIFS), in orbit on the OrbView-2 (formerly SeaStar) platform. Aqua MODIS and SeaWiFS products are processed and distributed by the Ocean Biology Processing Group (OBPG). MODIS/Aqua processing details can be found at http://oceancolor.gsfc.nasa.gov/DOCS/MODISA_processing.html . SeaWiFS processing details can be found at http://oceancolor.gsfc.nasa.gov/DOCS/SW_proc.html . The Aqua MODIS and SeaWiFS Level-3 9 km merged chlorophyll products are generated routinely for daily, 8-day, monthly, seasonal and annual time periods once the refined products for each of the contributing missions are processed. Increased coverage over the single mission product is realized through the merging of the two data sets. There is a substantial improvement (> 50%) in coverage at the daily level, decreasing with the increase in the temporal period binned. The MODIS/SeaWiFS merged product is generated in essentially two steps. First, the MODIS Level-3 file is reduced in resolution from 4 to 9 km to match the global resolution of the SeaWiFS chlorophyll product. This involves combining the sum and sum squared field values for the (typically) four 4 km bins into the corresponding single 9 km bin. In the second step, the reduced-resolution MODIS file and the corresponding SeaWiFS Level-3 file are combined. Because both input files are at the same 9 km resolution, the summing is performed bin-by-bin. The Standard Mapped Image file that is generated from the merged Level-3 binned file stores scaled 16 bit integer values rather than the usual 8 bit values, giving the user much greater numerical precision. The actual images displayed on the Ocean Color website in PNG format are provided for visual inspection only. Browse Level 3 Standard Mapped Images (SMI) at http://oceancolor.gsfc.nasa.gov/cgi/level3.pl The Aqua MODIS and SeaWiFS Level 3 Merged Chlorophyll data files are available from the FTP site at ftp://oceans.gsfc.nasa.gov/Merged/
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020704
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 > OCEANS > OCEAN CHEMISTRY > PIGMENTS
Theme_Keyword: SEASTAR > ORBITAL SCIENCES CORPORATION ORBVIEW-2 SATELLITE
Theme_Keyword: AQUA > EARTH OBSERVING SYSTEM, AQUA
Theme_Keyword: MODIS > MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER
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: BIOTA
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 OCEAN
Place_Keyword: GEOGRAPHIC REGION > POLAR
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Yearly
Temporal_Keyword: Annual
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.
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
Back to Top
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
Back to Top
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 9 km
Longitude_Resolution: 9 km
Geographic_Coordinate_Units: Decimal degrees
Back to Top
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_MODIS_AQUA_SEAWIFS_L3_MYC
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/Merged/Annual/
Access_Instructions:
Access Yearly Merged MODIS-Aqua/SeaWiFS Level 3 Chlorophyll_a 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://modis.gsfc.nasa.gov/
Access_Instructions:
MODIS WEB
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://ocean...
Access_Instructions:
Data and Processing documentation
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://oceancolor.gsfc.nasa.gov/forum/oceancolor/t...
Access_Instructions:
Ocean Color Forum
Fees: Not Available
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20040521
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
Back to Top
[ Update this Record ]


Link to Web Site