SNF NS001-TMS CANOPY REFLECTANCE 1983-84
Entry ID: SNF_NS001

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Summary
Abstract: The NS001 Thematic Mapper Simulator (TMS) was flown on the NASA C-130 aircraft over the Superior National Forest study area. TMS data were collected and processed for three days: July 13 and August 6, 1983; and June 28, 1984. The TMS was a scanning radiometer with eight wavelength bands. Band 8 was a thermal band and not processed in this study. The C-130 flew a "crisscross" pattern over the SNF, which provided a variety of sun and view angles. The TMS data were processed to provide reflectance values of study sites. These data are useful in the analysis of the bi-directional reflectance function of forest canopies. The TMS radiance values were converted to reflectance using values for insolation, atmospheric transmittance, and path scattered radiance for the appropriate solar and view angles. No measurement of these values were made, so the LOWTRAN6 atmosphere model was used to generate them. Scattering contributions calculated from the path between the canopy and the sensor were subtracted from the sensor detected radiances and divided by the incident flux to generate reflectance factors. Corrected canopy reflectance values for three days are included in the data set. Standard spherical polar coordinates, with zero degree azimuth due north, are given. Errors in the determination of these angles are possible due to the lack of precise aircraft position. The sensor zenith angles were determined from the sensor scan angle and should be accurate to within a degree. The sensor azimuth angles were determined from plotting the center points of a nadir view camera on an air photo of the area and connecting them to determine the aircraft heading. Because of the errors in this method, view azimuth accuracy is probably no more than two to three degrees. Solar zenith and azimuth were determined computationally from the time at the beginning of each flight line and should be within a degree. Sites referred to as 0 and 99 in the tables are observations of water.

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Description: SNF NS001-TMS CANOPY REFLECTANCE 1983-84


Geographic Coverage
 N: 48.1697 S: 47.6575  E: -91.7658  W: -92.5058

Data Set Citation
Dataset Originator/Creator: GOETZ, S.J.HALL, F.G.HUEMMRICH, K.F.NICKESON, J.E.STREBEL, D.E.WOODS, K.D.
Dataset Title: SNF NS001-TMS CANOPY REFLECTANCE 1983-84
Dataset Release Date: 1996
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/185
Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=185&term2attribut...


Temporal Coverage
Start Date: 1983-07-13
Stop Date: 1984-06-28


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA


Science Keywords
BIOSPHERE >VEGETATION >CANOPY CHARACTERISTICS    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >REFLECTANCE    [Definition]


ISO Topic Category
BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
C-130 >Lockheed C-130 Hercules    [Information]


Instrument
TMS >Thematic Mapper Simulator    [Information]


Project
ESIP >Earth Science Information Partners Program    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
SUPERIOR NATIONAL FOREST    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Keywords
EOSDIS


Data Set Progress
COMPLETE


Data Center
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC)    [Information]
Data Center URL: http://daac.ornl.gov/
Dataset ID: 185

Data Center Personnel
Name: ORNL DAAC USER SERVICES OFFICE
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA


Personnel
SCOTT J. GOETZ
Role: TECHNICAL CONTACT
Phone: (301) 405-1297
Fax: (301) 314-9299
Email: sgoetz at geog.umd.edu
Contact Address:
University of Maryland
Dept of Geography
LeFrak Bldg
City: College Park
Province or State: MD
Postal Code: 20742
Country: USA


ORNL DAAC USER SERVICES OFFICE
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA



Creation and Review Dates
DIF Creation Date: 1996-10-24
Last DIF Revision Date: 2012-09-11

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