SAFARI 2000 AERONET-DERIVED DIFFUSE SPECTRAL IRRADIANCE FOR EIGHT CORE SITES

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: PRIVETTE, J.L.
Publication_Date: 2005
Title: SAFARI 2000 AERONET-DERIVED DIFFUSE SPECTRAL IRRADIANCE FOR EIGHT CORE SITES
Edition:
Geospatial_Data_Presentation_Form: Online Files
Series_Information:
Series_Name:
Issue_Identification:
Publication_Information:
Publication_Place: Oak Ridge, Tennessee, U.S.A.
Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Other_Citation_Details:
Online_Linkage: http://mercury.ornl.gov/ornldaac/send/query?term2=791&term2attribute=fileID
Description:
Abstract:
This data set contains monthly mean values of diffuse irradiance fraction [f(Ediff), or ratio of diffuse-to-total irradiance] at ground level for a 30-degree solar zenith angle and in seven spectral bands (MODIS bands 1-7) as well broadband visible (400-700 nm), near-infrared (700-3000 nm) and shortwave (400-3000 nm). Values are provided for eight SAFARI 2000 core sites, including Ghanzi/Okwa River Crossing, Maun (Main and Floodplain Towers), Pandamatenga, and Tshane, Botswana; Skukuza, South Africa; Etosha National Park, Namibia; and Mongu, Zambia. The fractions were estimated with the 6S radiative transfer model, given the mean aerosol optical depth (AOT) values from AERONET sunphotometer measurements. Where sunphotometers were not deployed at a SAFARI 2000 core site, the nearest neighbor sunphotometer data were used. A rough estimate of the likely spatial extrapolation error is provided. These data can be used to estimate typical surface albedo (blue sky conditions) from the theoretical black-sky and white-sky albedo values provided in the MODIS albedo product (MOD43), as well as in other applications.Data for all eight sites are contained in one ASCII file, in csv format. The data file provides the ratio of diffuse (atmospherically-scattered) irradiance to total irradiance, both at ground level, for the eight sites in southern Africa. Mean values are provided for each of 12 months in 10 spectral bands between 0.4 and 4.0 microns, computed for a 30-degree solar zenith angle. The native resolution of the AERONET sunphotometer data varies, but is typically less than 1 hour. Information about the site location, IGBP classification, and nearest AERONET sunphotometer site is also provided.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000101
Ending_Date: 20001231
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 15.9144
East_Bounding_Coordinate: 31.4969
North_Bounding_Coordinate: -15.4389
South_Bounding_Coordinate: -25.0197
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: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR IRRADIANCE
Theme_Keyword: FIELD INVESTIGATION
Theme_Keyword: SUN PHOTOMETERS
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: CWIC > CEOS WGISS INTEGRATED CATALOG
Theme_Keyword: Aot
Theme_Keyword: Mod43
Theme_Keyword: Modis
Theme_Keyword: Eosdis
Theme_Keyword: Aeronet
Theme_Keyword: F(ediff)
Theme_Keyword: Safari 2000
Theme_Keyword: Sunphotometer
Theme_Keyword: Surface Albedo
Theme_Keyword: White-sky Albedo
Theme_Keyword: Black-sky Albedo
Theme_Keyword: Diffuse Irradiance
Theme_Keyword: Aerosol Optical Depth
Theme_Keyword: Diffuse Irradiance Fraction
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENVIRONMENT
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: JEFFREY L. PRIVETTE
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
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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:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: ORNL_DAAC > THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC)
Contact_Person: ORNL DAAC USER SERVICES OFFICE
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: ORNL DAAC User Services Office
Address: Oak Ridge National Laboratory
City: Oak Ridge
State_or_Province: TN
Postal_Code: 37831-6407
Country: USA
Contact_Voice_Telephone: (865) 574-7447
Contact_Electronic_Mail_Address: uso@daac.ornl.gov
Resource_Description: 791
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://daac.ornl.gov/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=791...
Access_Instructions:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://daac.ornl.gov//S2K/guides/diffuse_irradianc...
Access_Instructions:
SAFARI 2000 AERONET-DERIVED DIFFUSE SPECTRAL IRRADIANCE FOR EIGHT CORE SITES
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20050601
Metadata_Review_Date: 20120523
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ORNL DAAC USER SERVICES OFFICE
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: ORNL DAAC User Services Office
Address: Oak Ridge National Laboratory
City: Oak Ridge
State_or_Province: TN
Postal_Code: 37831-6407
Country: USA
Contact_Voice_Telephone: (865) 574-7447
Contact_Electronic_Mail_Address: uso@daac.ornl.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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