Bidirectional Reflectance Measurements of Forest Canopy Using PORTABLE

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: Donald W. Deering

Publication_Date: Unknown

Title: Bidirectional Reflectance Measurements of Forest Canopy Using PORTABLE

Edition:

Geospatial_Data_Presentation_Form: ASCII Tables

Series_Information:

Series_Name: FED MAC Home Page

Issue_Identification:

Publication_Information:

Publication_Place: NASA/GSFC

Publisher: NASA/GSFC

Other_Citation_Details:

Online_Linkage: http://forest.gsfc.nasa.gov/

Description:

Abstract:

Forest Ecosystem Dynamics Multisensor Airborne Campaign (FED MAC): Bidirectional Reflectance Measurements of Forest Canopy Using PARABOLA The Biospheric Sciences Branch (formerly Earth Resources Branch) within the Laboratory for Terrestrial Physics at NASA's Goddard Space Flight Center and associated University investigators are involved in a research program entitled Forest Ecosystem Dynamics (FED) which is fundamentally concerned with vegetation change of forest ecosystems at local to regional spatial scales (100 to 10,000 meters) and temporal scales ranging from monthly to decadal periods (10 to 100 years). The nature and extent of the impacts of these changes, as well as the feedbacks to global climate, may be addressed through modeling the interactions of the vegetation, soil, and energy components of the boreal ecosystem. The Portable Apparatus for Rapid Acquisition of Bidirectional Observations of Land and Atmosphere, or PARABOLA instrument (see Deering and Leone, 1986 for a complete description) was employed to measure the directional radiances in essentially the complete 4 pi irradiance field above and below the spruce-hemlock canopy under cloudless and overcast sky. The PARABOLA is a three-channel (visible, near infrared, and mid-infrared; 0.650-0.670, 0.810-0.840, and 1.620-1.690 um, respectively), radiometer with a scanning head that turns on two axes, which enables the acquisition of radiance data for almost the complete sky- and ground-looking hemispheres in 15 degrees instantaneous field-of-view sectors in only 11 s. Measurements were made during the 1989 experiment with the instrument deployed on the meteorological tower using a 6.5 m triangular truss boom. To avoid tower shadowing in 1991, a specially contructed 32 m telescopic mast was supported on a 4 m long by 1.8 m wide, hollow-frame trailer adapted for mounting the PARABOLA. The FED Home Page is at: http://forest.gsfc.nasa.gov/.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Walthall, C.L., M. Kim, D.L. Williams, B.W. Meeson, P.A. Agbu, J.A. Newcomer, and E.L. Levine. 1993. Data sets for modeling: a retrospective collection of bidirectional reflectance and forest ecosystem dynamics multisensor aircraft campaign data sets. Remote Sensing of Environment; 46:340-346. Deering, D.W., and T.F. Eck. 1992. Canopy Albedo and Transmittance in a Spruce-Hemlock Forest in mid-September. Agriculture and Forest Meteorology 59:237-248. Deering, D.W., E.M. Middleton, and T.F. Eck. 1994. Reflectance Anisotropy for a Spruce-Hemlock Forest Canopy. Remote Sensing of Environment; 47:242-260. Deering, D.W., and P. Leone. 1986. A Sphere-Scanning Radiometer for Rapid Directional Measurements of Sky and Ground Radiance. Remote Sensing of Environment; 19:1-24.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19890916

Ending_Date: 19910825

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -68.0

East_Bounding_Coordinate: -68.0

North_Bounding_Coordinate: 45.0

South_Bounding_Coordinate: 45.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD INSTRUMENT

Theme_Keyword_Thesaurus: PROJECT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > RADIATIVE FLUX > TOTAL HEMISPHERIC DIFFUSE FLUX

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > REFLECTANCE > BIDIRECTIONAL REFLECTANCE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION > DOWNWELLING RADIATION

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > SOLAR RADIATION > UPWELLING RADIATION

Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE

Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > REFLECTED INFRARED

Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > PLATFORM CHARACTERISTICS > VIEWING GEOMETRY

Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE FLUX

Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE RADIANCE

Theme_Keyword: PARABOLA > PORTABLE APPARATUS RAPID ACQUISITION BIDIRECTIONAL OBSERV LAND AND ATMOS

Theme_Keyword: RADIOMETERS

Theme_Keyword: FED MAC > FOREST ECOSYSTEM DYNAMICS MULTISENSOR AIRBORNE CAMPAIGN

Theme_Keyword: Fed Mac

Theme_Keyword: Hemlock

Theme_Keyword: Parabola

Theme_Keyword: Spruce

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: GEOSCIENTIFIC INFORMATION

Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE

Temporal:

Temporal_Keyword_Thesaurus: GCMD

Temporal_Keyword: Decadal

Temporal_Keyword: Decadal

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: THOMAS F. ECK

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA

Address: Goddard Space Flight Center

Address: Mailstop 614.4

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: 301-614-6625

Contact_Facsimile_Telephone: 301-614-6695

Contact_Electronic_Mail_Address: Thomas.F.Eck@nasa.gov

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: NASA/GSFC/SED/ESD/HBSL/BSB/FED > Forest Ecosystem Dynamics Project, Biospheric Sciences Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Contact_Person: BRUCE COOK

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA

Address: Goddard Space Flight Center

Address: Mailstop 614.4

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Electronic_Mail_Address: bruce.cook@nasa.gov

Resource_Description: FEDMAC_PARABOLA

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ASCII

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://forest.gsfc.nasa.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://forest.gsfc.nasa.gov/

Access_Instructions:

Fees: Free

Metadata_Reference_Information:

Metadata_Date:

Metadata_Review_Date: 20110505

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: TYLER B. STEVENS

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Global Change Master Directory

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: (301) 614-6898

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time