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CANOPY PHOTOSYNTHESIS RATES (FIFE)

Federal Geographic Data Committee (FGDC) Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: ASRAR, G.SELLERS, P.J.
Publication_Date: 1994
Title: CANOPY PHOTOSYNTHESIS RATES (FIFE)
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=27&term2attribute=fileID
Description:
Abstract:
The Canopy Photosynthesis Data Set data were collected from five sites within the FIFE study area during July 1, 1987 through October 12, 1987. The objectives of the study were to estimate canopy photosynthetic rates, respiration rates, and bulk stomatal resistance. Photosynthesis was measured by monitoring the net exchange of CO2 from the canopy to the atmosphere while the canopy is enclosed in a Plexiglas chamber equipped with a LI-COR CO2 gas analyzer. The rate of CO2 concentration change over intervals of 10 - 20 seconds is measured. This CO2 concentration rate of change is used along with other factors (e.g., the amount of canopy area enclosed, the volume of the enclosure, and temperature) to estimate the net photosynthesis rate. The stomatal resistance and conductance is calculated from the total leaf resistance (i.e., calculated via the transpiration rate along with the leaf and air temperatures) minus the boundary layer resistance. Stomatal resistance of selected species of the grass used to estimate the total canopy resistance were measured independently using a leaf diffusion porometer. The results showed that estimated values of net CO2 flux varied between about 0.25 and 1.0 [mg][m^-2][sec^-1] during IFC-2 and IFC-3, and around zero during IFC-4. Resistances ranged from 80 [sec][m^-1] to 300 [sec] [m^-1] during IFC-2 and IFC-3, rising to very high values (greater than 1000 [sec][m^-1]) during IFC-4.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19870701
Ending_Date: 19871012
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -96.55
East_Bounding_Coordinate: -96.5
North_Bounding_Coordinate: 39.1
South_Bounding_Coordinate: 39.01
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 > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE AIR TEMPERATURE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > CANOPY CHARACTERISTICS
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > VEGETATION > PHOTOSYNTHETICALLY ACTIVE RADIATION
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PHOTOSYNTHESIS
Theme_Keyword: PHOTOSYNTHESIS CHAMBER
Theme_Keyword: LICOR GAS EXCHANGE SYSTEM
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: FIFE > FIRST ISLSCP FIELD EXPERIMENT
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: CWIC > CEOS WGISS INTEGRATED CATALOG
Theme_Keyword: Eosdis
Theme_Keyword: Vegetative Properties
Theme_Keyword: Photosynthesis/photosynthetically Active
Theme_Keyword: BIOTA
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > KANSAS
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GHASSEM ASRAR
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Headquarters
Address: Code YS
City: Washington
State_or_Province: DC
Postal_Code: 20546
Country: USA
Contact_Voice_Telephone: (202) 358-0273
Contact_Electronic_Mail_Address: gasrar@sedsparc.ossa.hq.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:
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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: 27
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=27
Access_Instructions:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93...
Access_Instructions:
Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://daac.ornl.gov//FIFE/guides/Canopy_Photosynt...
Access_Instructions:
CANOPY PHOTOSYNTHESIS RATES (FIFE)
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 19940724
Metadata_Review_Date: 20110309
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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