CLPX-Ground: Sub-Canopy Energetics at the Local Scale Observation Site (LSOS)  View Catalog Page Entry ID
NSIDC-0170
Summary
This data set consists of solar and longwave radiation data from beneath two pine canopies (one uniform, one discontinuous) at the Local Scale Observation Site (LSOS) of the Cold Land Processes Field Experiment (CLPX) in northern Colorado. The LSOS is a 100 x 100-m study site located within the Fraser Intensive Study Area (ISA). The study area has flat topography with both a dense pine stand and an open pine stand. Data were collected during February and March 2002 and 2003.
This work addresses two of the overall CLPX questions: (1) How do the extent and evolution of snow and frozen landscapes affect fluxes, storage, and transformations of water, energy, and carbon? (2) At what scales does spatial variability of key state variables in the cryosphere (including snow characteristics, soil moisture, the extent of frozen soils, and the transition between frozen and thawed conditions) control fluxes and transformations of water, energy, and carbon, and can remote sensing resolve this variability at these scales?
The NASA CLPX is a multi-sensor, multi-scale experiment that focuses on extending a local-scale understanding of water fluxes, storage, and transformations to regional and global scales. Within a framework of nested study areas in the central Rocky Mountains of the western United States, ranging from 1-ha to 160,000 km2, intensive ground, airborne, and spaceborne observations are collected. Data collection focuses on two seasons: mid-winter, when conditions are generally frozen and dry, and early spring, a transitional period when both frozen and thawed, dry and wet conditions are widespread.
Geographic Coverage
Spatial Coordinates:
N: 39.9038°
S: 39.9038°
E: -105.883°
W: -105.883°
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Data Set Citation
Dataset Creator: Hardy, J., G. Koenig, D. Cline, K. Elder, R. Davis
Dataset Title: CLPX-Ground: Sub-Canopy Energetics at the Local Scale Observation Site (LSOS)
Dataset Release Date: 2002-11-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0170.html
Temporal Coverage
Start Date: 2001-11-01
Stop Date: 2003-03-31
Location Keywords
- CONTINENT NORTH AMERICA COLORADO
- GEOGRAPHIC REGION NORTHERN HEMISPHERE
Science Keywords
- Atmosphere Atmospheric Radiation Longwave Radiation
- Atmosphere Atmospheric Radiation Solar Radiation
- Biosphere Vegetation Canopy Characteristics
Ancillary Keywords
- Canopy Cover
- Direct Solar Radiation
- Longwave Downward Radiation
- Longwave Radiation
- Reflected Solar Radiation
- Solar Radiation
- Climatology/Meteorology/Atmosphere
Instrument
- INFRARED RADIOMETERS
- PYRGEOMETERS
Project
- CLPX Cold Land Processes Field Experiment
Data Center
NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@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
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@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: 18 - 209 KB
Distribution Format: GIF
Distribution Media: FTP
Distribution Size: 18 - 209 KB
Distribution Format: JPEG
Distribution Media: FTP
Distribution Size: 18 - 209 KB
Distribution Format: ASCII Text
Personnel
Janet Hardy
Role: INVESTIGATOR
Phone: 1 603 646 4306
Email: Janet.P.Hardy@erdc.usace.army.mil
Contact Address:
- CRREL
- US Army Engineer Research & Development Center
- ERDC - CRREL
- 72 Lyme Road
City: Hanover
Province or State: NH
Postal Code: 03755
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@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
Related URL
VIEW PROJECT HOME PAGE
CLPX Site
VIEW PROJECT HOME PAGE
Register as a CLPX user
Reference
Hardy, J., D. Cline, K. Elder, R. Davis, R. Armstrong, G. Castres Saint-Martin, R. DeRoo, T. Graf, Y. Koh, T. Koike, H-P. Marshall, K. McDonald, T. Painter, and K. Sarabandi (submitted). An Overview of Data from the Local Scale Observation Site of the Cold Land Processes Experiment (CLPX). Submitted to the Journal of Hydrometeorology.
Hardy, JP, R. Melloh, G. Koenig, J. Pomeroy, D. Marks and T. Link (2003). Solar variability beneath open and dense conifer canopies. Invited paper in Proceedings 2003 IUGG Meeting, June 30-July 11, 2003, (Sapporo, Japan), pp. C30-003.
Hardy, JP, R. Melloh, D. Marks, G. Koenig, J. Pomeroy, and T. Link (submitted). Solar Radiation Transmission Through Conifer Canopies. Submitted to Agricultural and Forest Meteorology.
Melloh R, J. Ballard, J. Hardy, C. Woodcock, J. Liu, J. Smith, G. Koenig, R. Davis (2003). Spatial distribution of canopy gaps in lodgepole pine forest. In Proceedings 60th Eastern Snow Conference, June 4-6, Sherbrooke, Quebec, Canada.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2002-11-01
Last DIF Revision Date: 2012-07-12
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