Close

Service Interruption

The NSIDC Web site and data services are currently having intermittent problems and may be unavailable. We are working to restore these services as soon as possible and apologize for any inconvenience this may cause. Please contact NSIDC User Services for assistance.



CLPX-Ground: Ground Based Passive Microwave Radiometer (GBMR-7) Data

View Catalog Page

Entry ID

NSIDC-0165

Summary

This data set contains brightness temperature observations of the snow cover at the Local Scale Observation Site (LSOS) of the Cold Land Processes Field Experiment (CLPX) in Fraser, Colorado, USA. Measurements were taken at 18.7, 23.8, 36.5, and 89 GHz (vertical/horizontal polarization) using a ground-based passive microwave radiometer (GBMR-7). Three different measurement techniques were used: 1) scans of undisturbed total snow cover, 2) angular scans with varying incidence angles (30 to 70 degrees), and 3) scans of bare soil and new snow accumulation. In addition to observed snow brightness temperatures, the data set includes snow pit characteristics (density, snow temperature, stratigraphy, snow crystal size, soil moisture) and meteorological forcing data observations (wind speed, wind direction, air temperature, relative humidity, downward long-wave radiation, downward short-wave radiation and precipitation). Snow cover brightness measurements were made 19-21 January 2002, 10-13 December 2002, 18-26 February 2003 and 25 March 2003. Snow pit and meteorological measurements were made between 1 October 2002 and 29 March 2003.

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: 39.95°     S: 39.95°     E: -105.9°     W: -105.9°    

Data Set Citation

Dataset Creator: Graf, T., T. Koike, H. Fujii, M. Brodzik, and R. Armstrong.
Dataset Title: CLPX-Ground: Ground Based Passive Microwave Radiometer (GBMR-7) Data
Dataset Release Date: 2003-10-13
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0165.html

Temporal Coverage

Start Date: 2003-03-25
Stop Date: 2003-03-25

Start Date: 2003-02-18
Stop Date: 2003-02-26

Start Date: 2002-12-10
Stop Date: 2002-12-13

Start Date: 2002-10-01
Stop Date: 2003-03-29

Start Date: 2002-01-19
Stop Date: 2002-01-21

Location Keywords

  • CONTINENT NORTH AMERICA
  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA
  • GEOGRAPHIC REGION NORTHERN HEMISPHERE

Science Keywords

  • Atmosphere Atmospheric Radiation Incoming Solar Radiation
  • Atmosphere Atmospheric Radiation Longwave Radiation
  • Atmosphere Atmospheric Radiation Shortwave Radiation
  • Atmosphere Atmospheric Temperature Air Temperature
  • Atmosphere Atmospheric Water Vapor Humidity
  • Atmosphere Atmospheric Winds Surface Winds
  • Atmosphere Precipitation Precipitation Amount
  • Atmosphere Precipitation Snow
  • Cryosphere Snow/Ice Snow Cover
  • Cryosphere Snow/Ice Snow Density
  • Cryosphere Snow/Ice Snow Depth
  • Cryosphere Snow/Ice Snow/Ice Temperature
  • Cryosphere Snow/Ice Snow Melt
  • Cryosphere Snow/Ice Snow Stratigraphy
  • Cryosphere Snow/Ice Snow Water Equivalent
  • Land Surface Soils Soil Moisture/Water Content
  • Spectral/Engineering Microwave Brightness Temperature
  • Terrestrial Hydrosphere Snow/Ice Snow Cover
  • Terrestrial Hydrosphere Snow/Ice Snow Density
  • Terrestrial Hydrosphere Snow/Ice Snow Depth
  • Terrestrial Hydrosphere Snow/Ice Snow/Ice Temperature
  • Terrestrial Hydrosphere Snow/Ice Snow Melt
  • Terrestrial Hydrosphere Snow/Ice Snow Stratigraphy
  • Terrestrial Hydrosphere Snow/Ice Snow Water Equivalent

Ancillary Keywords

  • Air Temperature
  • Incoming Shortwave Radiation
  • Longwave Downward Radiation
  • Near-surface Air Temperatures
  • Passive Microwave
  • Passive Microwave Brightness Temperatures
  • Passive Microwave Data
  • Passive Microwave Radiation
  • Precipitation
  • Precipitation Amount
  • Relative Humidity
  • Scanning Multichannel Microwave Radiometer
  • Snow Depth
  • snow grain size
  • Snowpack
  • Snow Pits
  • Snow Properties
  • Snow Surface Temperature
  • Wind Direction
  • Wind Speed

Platform

  • GROUND-BASED OBSERVATIONS

Instrument

  • MSR Microwave Scanning Radiometer

Project

  • CLPX Cold Land Processes Field Experiment

Quality

Data has undergone QC.

Access Constraints

Accessible only by CLPX approved investigators until October 2004.

Data Set Progress

in work

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: 5 KB
Distribution Format: PNG

Distribution Media: FTP
Distribution Size: 1 - 3789 KB
Distribution Format: ASCII Text (.txt)

Distribution Media: FTP
Distribution Size: 43 - 453 KB
Distribution Format: Joint Photographic Expert Group (JPEG) (.jpg)

Personnel

Tobias Graf
Role: INVESTIGATOR
Phone: 81 (0)3 5841 6107
Fax: 81 (0)3 5481 6130
Email: tgraf@hydra.t.u-tokyo.ac.jp
Contact Address:

  • University of Tokyo
  • Department of Civil Engineering, River & Environmental Engineering
  • Department of Civil Engineering, River & Environmental Engineering,
  • Laboratory 7-3-1,
  • University of Tokyo
  • Hongo,
  • Bunkyo-ku

City: Tokyo
Postal Code: 113-8656
Country: Japan

Tobias Graf
Role: INVESTIGATOR
Phone: 81 (0)3 5841 6107
Fax: 81 (0)3 5481 6130
Email: tgraf@hydra.t.u-tokyo.ac.jp
Contact Address:

  • University of Tokyo
  • Department of Civil Engineering, River & Environmental Engineering
  • Department of Civil Engineering, River & Environmental Engineering,
  • Laboratory 7-3-1,
  • University of Tokyo
  • Hongo,
  • Bunkyo-ku

City: Tokyo
Postal Code: 113-8656
Country: Japan

Toshio Koike
Role: INVESTIGATOR

Hideyuki Fujii
Role: INVESTIGATOR

Mary J. Brodzik
Role: INVESTIGATOR
Email: brodzik@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449

Richard Armstrong
Role: INVESTIGATOR
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: rlax@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • National Snow and Ice Data Center
  • CIRES 449 UCB
  • University of Colorado

City: Boulder
Province or State: Colorado
Postal Code: 80309-0449
Country: USA

Richard Armstrong
Role: INVESTIGATOR
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: rlax@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • National Snow and Ice Data Center
  • CIRES 449 UCB
  • University of Colorado

City: Boulder
Province or State: Colorado
Postal Code: 80309-0449
Country: USA

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

Kazama, S, T. Rose, and R. Zimmerman.1999. 'A Precision Autocalibrating 7ch Radiometer for Environmental Research Applications' Journal of The Remote Sensing Society of Japan, Vol. 19, No. 3, pp. 37-45.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2003-10-13
Last DIF Revision Date: 2013-07-19

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

Back to Top