LBA-ECO CD-01 SIMULATED ATMOSPHERIC CIRCULATION, CO2 VARIATION, TAPAJOS: AUGUST 2001

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: DENNING, A.S.FREITAS, S. R.LONGO, M.LU, L.SAATCHI, S.S.SILVA-DIAS, M.A. DASILVA-DIAS, P.

Publication_Date: 2009

Title: LBA-ECO CD-01 SIMULATED ATMOSPHERIC CIRCULATION, CO2 VARIATION, TAPAJOS: AUGUST 2001

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=907&term2attribute=fileID

Description:

Abstract:

We have investigated mesoscale variations of atmospheric CO2 over a heterogeneous landscape of forests, pastures, and large rivers during the Santarem Mesoscale Campaign (SMC) of August 2001. The variations of atmospheric CO2 concentration were simulated using the Colorado State University (CSU) Regional Atmospheric Modeling System (RAMS) with four nested grids that included a 1-km finest grid centered on the Flona Tapajos. Surface fluxes of CO2 were prescribed in the model using idealized diurnal cycles over forest and pasture vegetation derived from flux tower observations, and over surface water using a value suggested by in situ measurements in the Amazon region. The distribution of vegetation types was derived from the 1-km International Geosphere-Biosphere Programme (IGBP) land-cover dataset version 2.0. Our simulation ran from the 1st through the 15th of August 2001, which was concurrent with the SMC. Evaluation against flux tower observations and the SMC field measurements shows that, in many respects, the model captures observed meteorological variables and CO2 concentrations reasonably well. The results also suggest that the local topography, differences in roughness length between water and land, the T shape juxtaposition of Amazon and Tapajos Rivers, and the resulting horizontal and vertical wind shears, all facilitated the generation of local mesoscale circulations. Possible mechanisms producing a lower level convergence line near the east bank of the Tapajos River during strong trade-wind conditions are also explored. Our modeling study is helping us to understand observed patterns of CO2 fluxes and concentration distribution obtained from flux towers and light aircraft.

Purpose:

Not Available

Supplemental_Information:

Not Available

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20010801

Ending_Date: 20010816

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -55.424

East_Bounding_Coordinate: -54.558

North_Bounding_Coordinate: -2.204

South_Bounding_Coordinate: -3.069

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

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 CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CARBON DIOXIDE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS

Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM

Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM

Theme_Keyword: LBA-ECO > NASA'S COMPONENT OF THE LARGE-SCALE BIOSPHERE-ATMOSPHERE EXPERIMENT IN AMAZONIA

Theme_Keyword: Rams

Theme_Keyword: Wind

Theme_Keyword: Tapajos River

Theme_Keyword: Rams Model Output

Theme_Keyword: Co2 Concentration

Theme_Keyword: Mesoscale Circulations

Theme_Keyword: Three Dimensional Winds

Theme_Keyword: Atmospheric Co2 Variations

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: ENVIRONMENT

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > SOUTH AMERICA > BRAZIL

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: A. S. DENNING

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

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

Spatial_Reference_Information:

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: 907

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=907...

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//LBA/guides/CD01_BRAMS.html

Access_Instructions:

LBA-ECO CD-01 SIMULATED ATMOSPHERIC CIRCULATION, CO2 VARIATION, TAPAJOS: AUGUST 2001

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20090116

Metadata_Review_Date: 20120814

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