Thaw Depth and Vegetation Radiance Measurements, Happy Valley, AK, 1994
Entry ID: ARCSS103

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Summary
Abstract: This data set contains measurements for permafrost active layer thaw depth and vegetation reflectance (red and near-infrared bandwidths) at the Happy Valley Flux Study Site in northern Alaska during the summer of 1994. Sampling was conducted in a 1000-m square grid pattern, with sample points spaced 100 m apart. Median values for thaw depths were determined from five replicate measurements using a thaw probe. Vegetation radiance values are averages of five measurements collected from an area approximately 5 square meters at each grid point. Radiometric measurements were collected with Exotech-100BX, 4-channel radiometers fit with spectral filters corresponding to the SPOT/HRV-XS satellite bandwidths.

Related URL
Link: GET DATA
Description: data ftp site


Link: GET DATA
Description: access to data and documentation


Geographic Coverage
 N: 69.149 S: 69.141  E: -148.84  W: -148.863
 Min Depth: 1 CM  Max Depth: 64 CM

Data Set Citation
Dataset Originator/Creator: Walter C. Oechel
Dataset Title: Thaw Depth and Vegetation Radiance Measurements, Happy Valley, AK, 1994
Dataset Release Date: 2003-01-01
Dataset Release Place: Boulder, CO, U.S.A.
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Data Presentation Form: tables
Online Resource: http://nsidc.org/data/arcss103.html


Temporal Coverage
Start Date: 1994-06-06
Stop Date: 1994-07-17


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA
GEOGRAPHIC REGION > ARCTIC
GEOGRAPHIC REGION > POLAR
VERTICAL LOCATION > LAND SURFACE


Data Resolution
Vertical Resolution: 1 cm


Science Keywords
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >ALPINE/TUNDRA    [Definition]
BIOSPHERE >VEGETATION >CANOPY CHARACTERISTICS    [Definition]
BIOSPHERE >VEGETATION >CARBON    [Definition]
BIOSPHERE >VEGETATION >VEGETATION INDEX    [Definition]
TERRESTRIAL HYDROSPHERE >SNOW/ICE >PERMAFROST >ACTIVE LAYER    [Definition]
LAND SURFACE >SOILS >CARBON    [Definition]
SPECTRAL/ENGINEERING >INFRARED WAVELENGTHS >INFRARED RADIANCE    [Definition]
SPECTRAL/ENGINEERING >VISIBLE WAVELENGTHS >VISIBLE RADIANCE    [Definition]
CRYOSPHERE >FROZEN GROUND >ACTIVE LAYER    [Definition]
CRYOSPHERE >FROZEN GROUND >SEASONALLY FROZEN GROUND    [Definition]
LAND SURFACE >FROZEN GROUND >ACTIVE LAYER    [Definition]
LAND SURFACE >FROZEN GROUND >SEASONALLY FROZEN GROUND    [Definition]


ISO Topic Category
BIOTA
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER
INLAND WATERS


Platform
GROUND-BASED OBSERVATIONS    [Information]


Instrument
PROBES    [Information]
RADIOMETERS    [Information]


Project
ARCSS >Arctic System Science    [Information]
ARCSS/LAII/FLUX >Arctic System Science/Land-Atmosphere-Ice Interaction/fluxes    [Information]
NSF/OPP >Office of Polar Programs, National Science Foundation    [Information]


Keywords
ADCC
Alaska
ARCSS103
Arctic System Science Data Coordination Center
Carbon Flux
CO2 Flux
Happy Valley
LAII
National Science Foundation
NSF
NSIDC
OPP-9216109
OPP-9318527
OPP9216109
OPP9318527
reflectance
spectral vegetation index


Data Set Progress
COMPLETE


Originating Center
ADCC


Data Center
National Snow and Ice Data Center    [Information]
Data Center URL: http://nsidc.org
Dataset ID: ARCSS103

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Arctic System Science Data Coordination Center    [Information]
Data Center URL: http://nsidc.org/arcss/
Dataset ID: ARCSS103

Data Center Personnel
Name: NSIDC ARCSS USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Frozen Ground Data Center    [Information]
Data Center URL: http://nsidc.org/fgdc/
Dataset ID: ARCSS103

Data Center Personnel
Name: NSIDC FGDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA



Distribution
Distribution_Media: ftp
Distribution_Size: 2.5 - 4 KB
Distribution_Format: comma-delimited text files


Personnel
WALTER C. OECHEL
Role: INVESTIGATOR
Phone: (619) 594-4818 x6613
Email: oechel at sunstroke.sdsu.edu
Contact Address:
San Diego State University
Department of Biology
Global Change Research Group
5500 Campanile Drive
City: San Diego
Province or State: CA
Postal Code: 92182-0001
Country: USA


ALLEN S. HOPE
Role: INVESTIGATOR
Phone: (619) 594-2777
Email: hope1 at mail.sdsu.edu
Contact Address:
San Diego State University
5500 Campanile Drive
City: San Diego
Province or State: CA
Postal Code: 92182-4493
Country: USA


DOUGLAS A. STOW
Role: INVESTIGATOR
Phone: (619) 594-5498
Fax: (619) 594-4938
Email: stow at mail.sdsu.edu
Contact Address:
San Diego State University
Department of Geography
5500 Campanile Drive
City: San Diego
Province or State: CA
Postal Code: 92182-4493
Country: USA


J. B. FLEMING
Role: INVESTIGATOR


NSIDC USER SERVICES
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA


Publications/References
Hope A.S., Fleming J.B., Vourlitis G.L., Stow D.A., Oechel W.C., and T. Hack. 1995. Relating CO2 fluxes to spectral vegetation indices in tundra landscapes: Importance of footprint definition. Polar Record 31: 245-250.

Hope A.S., McMichael C.E., Stow D.A., Fleming J.B., Vourlitis G., Oechel W.C., and S. Hastings. 1995. Direct estimates of CO2 flux in arctic environments using a spectral vegetation index. Proceedings IGARSS'97 Conference, Florence Italy.

McMichael C.E., Hope A.S., Stow D.A., and J.B. Fleming. 1997. The relationship between active layer depth and a spectral vegetation index in arctic tundra landscapes of the North Slope of Alaska. International Journal of Remote Sensing 18(11): 2371-2382.

McMichael C.E., Hope A.S., Stow D.A., Fleming J.B., Vourlitis G.L., and W.C. Oechel. 1999. Estimating CO2 exchange at two sites in Arctic tundra ecosystems during the growing season using a spectral vegetation index. International Journal of Remote Sensing 20(4): 683-698.

Creation and Review Dates
DIF Creation Date: 2002-10-30
Last DIF Revision Date: 2012-05-11

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