Data Sets

Study area

CLPX Study Area Map. See high-resolution map. Map courtesy of NSIDC.

The CLPX Data Set Table below lists both unrestricted and restricted CLPX data sets. If you have problems accessing data or have questions, please contact NSIDC User Services.

For more information regarding the Cold Land Process Field Experiment (CLPX), please see the CLPX Overview page.

CLPX Data Sets

Title Spatial Coverage Temporal Coverage Spatial Resolution Temporal Resolution Parameter(s)
CLPX Airborne Gamma Snow and Soil Moisture Surveys, Version 1 N: 41, S: 39.5, E: -105, W: -107.5 2003/03/25 to 2003/03/31
2003/02/19 to 2003/02/21
2002/09/17
2002/02/19 to 2002/02/23
2001/09/20 to 2001/09/22
Snow Cover, Snow Water Equivalent, Soil Moisture/Water Content
CLPX Airborne: Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Data, Version 1 N: 41, S: 39.7, E: -105.5, W: -107 2002/02/19 to 2002/02/20
2002/03/25 to 2002/04/01
2002/04/04 to 2002/04/08
Grain Size, Reflectance, Snow Cover
CLPX NCAR Data Analysis and Numerical Modeling, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2001/10/01 to 2003/06/30 Air Temperature, Surface Winds
CLPX NOAA FSL Rapid Update Cycle 20 km (RUC-20) Dataset, Version 1 N: 54, S: 24, E: 66, W: -126 2002/09/30 to 2003/09/30 Air Temperature, Albedo, Atmospheric Pressure, Geopotential Height, High Level Cloud Cover, Incoming Long Wave, Incoming Solar Radiation, Latent Heat Flux, Low Level Cloud Cover
CLPX-Airborne: Airborne Synthetic Aperture Radar (AIRSAR) Imagery, Version 1 N: 40.7, S: 39.9, E: -105.9, W: -106.7 2002/03/25
2002/02/19
2002/02/21
2002/02/22 to 2002/02/24
2002/09/17
2003/03/25
2003/03/26
2003/03/28 to 2003/03/30
Radar Imagery
CLPX-Airborne: Infrared Orthophotography and Lidar Topographic Mapping, Version 1 N: 41, S: 39.5, E: -105, W: -107.5 2003/04/08 to 2003/04/09
2003/09/18 to 2003/09/19
Landforms, Lidar Returns, Topography
CLPX-Airborne: Micrometeorological Measurements Over Snow, Airborne, Version 1 2002/11/01 to 2003/03/31 Air Temperature, Atmospheric Pressure Measurements, Carbon Dioxide, Humidity, Longwave Radiation, Net Radiation, Outgoing Longwave Radiation, Precipitation Amount, Shortwave Radiation, Water Vapor Profiles
CLPX-Airborne: Multiband Polarimetric Scanning Radiometer (PSR) Imagery, Version 1 2002/02/19 to 2002/02/21
2003/02/22 to 2003/02/25
2003/03/25 to 2003/03/31
Brightness Temperature, Microwave, Microwave Imagery, Snow Cover
CLPX-Airborne: Polarimetric Ku-Band Scatterometer (POLSCAT) Data, Version 1 N: 40.00833, S: 39.76694, E: -105.71694, W: -106.025
N: 40.56667, S: 40.34167, E: -106.54167, W: -106.81694
N: 40.78361, S: 40.575, E: -106.14167, W: -106.41694
2002/02/21
2002/02/23
2002/03/25
2003/03/25
2003/03/28
2003/03/30
Radar Backscatter
CLPX-Ground: Ground Based Passive Microwave Radiometer (GBMR-7) Data, Version 1 N: 39.95, S: 39.95, E: -105.9, W: -105.9 2003/03/25
2003/02/18 to 2003/02/26
2002/12/10 to 2002/12/13
2002/10/01 to 2003/03/29
2002/01/19 to 2002/01/21
Air Temperature, Brightness Temperature, Humidity, Incoming Solar Radiation, Longwave Radiation, Precipitation Amount, Shortwave Radiation, Snow, Snow Cover, Snow Density
CLPX-Ground: Ground-Based Frequency Modulated Continuous Wave (FMCW) Radar, Version 1 N: 40.6449, S: 39.828, E: -105.7681, W: -106.6788 2003/02/19 to 2003/03/29
2002/02/19 to 2002/03/26
Radar Reflectivity, Snow Cover, Snow Depth
CLPX-Ground: Ground-Based Infrared Images of the LSOS Site, Version 1 N: 39.9066, S: 39.9066, E: -105.8829, W: -105.8829 2002/02/18 to 2002/02/22
2002/03/28 to 2002/03/30
2003/03/26 to 2003/03/30
Albedo, Canopy Characteristics, Infrared Imagery, Infrared Radiance, Longwave Radiation, Net Radiation, Outgoing Longwave Radiation, Shortwave Radiation, Thermal Infrared
CLPX-Ground: Ground-based L and Ku band polarimetric scatterometry, Version 1 N: 39.95, S: 39.95, E: -105.9, W: -105.9 2003/03/26 to 2003/03/30
2003/02/17 to 2003/02/26
Microwave Radiance, Radar Backscatter, Return Power, Snow, Snow Cover, Snow Depth
CLPX-Ground: ISA Corner Site Meteorological Data, Version 1 N: 41, S: 39.5, E: -105, W: -107.5 2002/09/01 to 2003/10/31 Air Temperature, Relative Humidity, Snow Depth, Soil Moisture/Water Content, Soil Temperature, Wind Direction, Wind Speed
CLPX-Ground: ISA Main Meteorological Data, Version 1 N: 41, S: 39.5, E: -105, W: -107.5 2002/09/20 to 2003/10/01 Air Temperature, Atmospheric Pressure Measurements, Average Wind Direction, Average Wind Speed, Longwave Incoming Radiation, Longwave Outgoing Radiation, Maximum Wind Speed, Minimum Wind Speed, Net Radiation, Precipitation Amount, Relative Humidity, Shortwave Incoming Radiation
CLPX-Ground: ISA Snow Depth Transects and Related Measurements, Version 2 N: 42, S: 38.5, E: -104, W: -108.5 2002/03/25 to 2002/03/30
2003/02/20 to 2003/02/25
2003/03/26 to 2003/03/31
2002/02/19 to 2002/02/24
Canopy Characteristics, Snow Cover, Snow Depth, Soil Temperature, Surface Roughness
CLPX-Ground: ISA Snow Pit Measurements, Version 2 N: 42, S: 38.5, E: -104, W: -108.5 2002/02/19 to 2002/03/30 Snow Density, Snow Depth, Snow/Ice, Snow/Ice Chemistry, Snow/Ice Temperature, Snow Stratigraphy
CLPX-Ground: ISA Soil Moisture Measurements, Version 1 N: 40, S: 39.8, E: -105.7, W: -106
N: 40.6, S: 40.375, E: -106.2, W: -106.8
N: 40.8, S: 40.625, E: -106.15, W: -106.4
2001/09/01 to 2003/04/30 Soil Moisture/Water Content
CLPX-Ground: Micrometeorological Data at the Local Scale Observation Site (LSOS), Version 1 N: 39.90661, S: 0, E: 0, W: -105.88294 2002/11/06 to 2003/05/29 Heat Flux, Humidity, Snow/Ice Temperature, Soil Heat Budget, Soil Moisture/Water Content, Soil Temperature, Surface Air Temperature
CLPX-Ground: Micrometeorological Measurements Over Snow, Ground-Based, Version 1 2001/12/01 to 2002/03/27
2002/11/20 to 2003/03/24
Air Temperature, Atmospheric Pressure Measurements, Carbon Dioxide, Humidity, Longwave Radiation, Net Radiation, Outgoing Longwave Radiation, Precipitation Amount, Precipitation Rate, Shortwave Radiation, Snow Depth
CLPX-Ground: Micrometeorological Measurements Over Snow, Tower Mounted, Version 1 N: 40.78361, S: 40.575, E: -106.14167, W: -106.41694 Air Temperature, Atmospheric Pressure Measurements, Carbon Dioxide, Humidity, Longwave Radiation, Net Radiation, Outgoing Longwave Radiation, Precipitation Amount, Precipitation Rate, Shortwave Radiation, Snow Depth
CLPX-Ground: Snow Measurements at the Local Scale Observation Site (LSOS), Version 1 N: 39.95, S: 39.95, E: -105.9, W: -105.9 2002/02/22 to 2002/02/23
2002/03/25 to 2002/03/30
2003/02/19 to 2003/02/20
2003/03/24 to 2003/03/30
Snow Cover, Snow Density, Snow Depth, Snow Water Equivalent, Snow Wetness, Surface Roughness
CLPX-Ground: Sub-Canopy Energetics at the Local Scale Observation Site (LSOS), Version 1 N: 39.9038, S: 39.9038, E: -105.883, W: -105.883 2001/11/01 to 2003/03/31 Canopy Characteristics, Longwave Radiation, Solar Radiation
CLPX-Ground: University of Michigan Ground-Based Microwave Radiometer, Version 1 N: 39.903611, S: 39.903611, E: -105.883056, W: -105.883056 2003/03/24 to 2003/04/02 Brightness Temperature
CLPX-Model: Land Data Assimilation System (LDAS) Data, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2001/01/01 to 2003/08/01 Air Temperature, Albedo, Canopy Characteristics, Evaporation, Heat Flux, Humidity, Land Surface Temperature, Leaf Characteristics, Precipitation Amount, Runoff, Snow, Snow Cover
CLPX-Model: Local Analysis and Prediction System: 4-D Atmospheric Analyses, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2001/09/01 to 2003/08/31 Air Temperature, Atmospheric Pressure Measurements, Cloud Amount/Frequency, Cloud Base, Cloud Ceiling, Convergence/Divergence, Dew Point Temperature, Evaporation, Humidity, Infiltration, Land Surface Temperature, Potential Temperature
CLPX-Model: Rapid Update Cycle 40km (RUC-40) Model Output Reduced Data, Version 1 N: 42.568, S: 38.394, E: -103.971, W: -108.615 2002/10/01 to 2003/06/30 Accumulated Snow, Air Temperature, Albedo, Convective Precipitation, Downward Longwave Flux, Downward Shortwave Flux, Geopotential Height, High Level Cloud Cover, Latent Heat Flux, Low Level Cloud Cover
CLPX-Satellite: AMSR-E Brightness Temperature Grids, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2003/02/01 to 2003/05/31 Brightness Temperature, Microwave Imagery, Microwave Radiance
CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances, Version 1 N: 42.05, S: 38.45, E: -103.95, W: -108.55 2001/11/09 to 2003/06/26 Infrared Imagery, Visible Imagery
CLPX-Satellite: EO-1 Hyperion Surface Reflectance, Snow-Covered Area, and Grain Size, Version 1 N: 40.3, S: 39.6, E: -105.7, W: -106 2002/02/15
2002/03/19
Grain Size, Reflectance, Snow-Covered Area
CLPX-Satellite: Landsat Thematic Mapper Imagery, Version 1 N: 41.3098, S: 39.34853, E: -104.51927, W: -107.23799 2001/11/10 to 2003/01/09 Infrared Imagery, Infrared Radiance, Reflected Infrared, Thermal Infrared, Visible Imagery, Visible Radiance
CLPX-Satellite: MODIS Radiances, Reflectances, Snow Cover and Related Grids, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2002/02/15 to 2002/05/15
2003/02/15 to 2003/05/15
Emissivity, Land Surface Temperature, Reflectance, Snow Cover, Snow/Ice, Vegetation Index, Visible Imagery, Visible Radiance
CLPX-Satellite: Multi-angle Imaging Spectroradiometer (MISR) Products, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2003/02/15 to 2003/05/15
2002/02/15 to 2002/05/15
Albedo, Visible Radiance
CLPX-Satellite: SSM/I Brightness Temperature Grids, Version 1 N: 42, S: 38.5, E: -104, W: -108.5 2003/02/01 to 2003/05/31
2002/02/01 to 2002/05/31
GEO720.0: 0.2 degrees Brightness Temperature, Microwave Imagery, Microwave Radiance