Entry_ID: NSIDC-0172
Entry_Title: CLPX-Ground: ISA Main Meteorological Data
Group: Data_Set_Citation
   Dataset_Creator: Elder, K. and A. Goodbody. 
   Dataset_Title: CLPX-Ground: ISA Main Meteorological Data
   Dataset_Release_Date: 2004-02-01
   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-0172.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kelly
   Last_Name: Elder
   Email: kelder@fs.fed.us
   Phone: 1 970 498 1233 
   Fax: 1 970  498 1212 
   Group: Contact_Address
      Address: USFS RMRS
      Address: Rocky Mountain Research Station
      Address: USDA Forest Service
      Address: 240 West Prospect Road
      City: Fort Collins
      Province_or_State: CO
      Postal_Code: 80526
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kelly
   Last_Name: Elder
   Email: kelder@fs.fed.us
   Phone: 1 970 498 1233 
   Fax: 1 970  498 1212 
   Group: Contact_Address
      Address: USFS RMRS
      Address: Rocky Mountain Research Station
      Address: USDA Forest Service
      Address: 240 West Prospect Road
      City: Fort Collins
      Province_or_State: CO
      Postal_Code: 80526
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Angus
   Last_Name: Goodbody
   Email: goodbody@lamar.colostate.edu
   Phone: 1 970 498 1273 
   Fax: 1 970  498 1212 
   Group: Contact_Address
      Address: USFS RMRS
      Address: USFS Rocky Mountain Research Station
      Address: USDA Forest Service
      Address: 240 West Prospect Rd
      City: Fort Collins
      Province_or_State: CO
      Postal_Code: 80526
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Angus
   Last_Name: Goodbody
   Email: goodbody@lamar.colostate.edu
   Phone: 1 970 498 1273 
   Fax: 1 970  498 1212 
   Group: Contact_Address
      Address: USFS RMRS
      Address: USFS Rocky Mountain Research Station
      Address: USDA Forest Service
      Address: 240 West Prospect Rd
      City: Fort Collins
      Province_or_State: CO
      Postal_Code: 80526
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Nick
   Last_Name: Rutter
   Email: nrutter@nohrsc.nws.gov
   Phone: 1 952 361 6610 x230
   Fax: 1 952  361 6634 
   Group: Contact_Address
      Address: NOHRSC
      Address: 1735 Lake Drive West
      City: Chanhassen
      Province_or_State: MN
      Postal_Code: 55317
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Pressure
   Variable_Level_1: Atmospheric Pressure Measurements
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Radiation
   Variable_Level_1: Longwave Radiation
   Detailed_Variable: Longwave Incoming Radiation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Radiation
   Variable_Level_1: Longwave Radiation
   Detailed_Variable: Longwave Outgoing Radiation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Radiation
   Variable_Level_1: Net Radiation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Radiation
   Variable_Level_1: Shortwave Radiation
   Detailed_Variable: Shortwave Incoming Radiation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Radiation
   Variable_Level_1: Shortwave Radiation
   Detailed_Variable: Shortwave Outgoing Radiation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Temperature
   Variable_Level_1: Air Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Water Vapor
   Variable_Level_1: Humidity
   Detailed_Variable: Relative Humidity
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Winds
   Variable_Level_1: Boundary Layer Winds
   Detailed_Variable: Average Wind Direction
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Winds
   Variable_Level_1: Boundary Layer Winds
   Detailed_Variable: Average Wind Speed
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Winds
   Variable_Level_1: Boundary Layer Winds
   Detailed_Variable: Maximum Wind Speed
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Winds
   Variable_Level_1: Boundary Layer Winds
   Detailed_Variable: Minimum Wind Speed
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Winds
   Variable_Level_1: Boundary Layer Winds
   Detailed_Variable: Standard Deviation Wind Direction
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Precipitation
   Variable_Level_1: Precipitation Amount
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Frozen Ground
   Variable_Level_1: Soil Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Cover
   Detailed_Variable: Snow Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Density
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Depth
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Chemistry
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Water Equivalent
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Frozen Ground
   Variable_Level_1: Soil Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Land Temperature
   Variable_Level_1: Skin Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Soils
   Variable_Level_1: Soil Moisture/Water Content
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Soils
   Variable_Level_1: Soil Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Topography
   Variable_Level_1: Surface Roughness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Density
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Chemistry
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow/Ice Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Water Equivalent
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Air Temperatures
Keyword: Atmospheric Pressure
Keyword: Incoming Radiation
Keyword: Incoming Shortwave Radiation
Keyword: Land Surface Temperature
Keyword: Longwave Downward Radiation
Keyword: Longwave Radiation
Keyword: Near-surface Air Temperatures
Keyword: Net Radiation
Keyword: Precipitation
Keyword: Precipitation Amount
Keyword: Relative Humidity
Keyword: Shortwave Radiation
Keyword: Snow Depth
Keyword: Snow Surface Temperature
Keyword: Snow Temperature
Keyword: Soil Moisture
Keyword: Soil Temperatures
Keyword: Surface Soil Moisture
Keyword: Surface Temperature
Keyword: Surface Winds
Keyword: Ten Meter Temperatures
Keyword: Two-Meter Air Temperature
Keyword: Wind Direction
Keyword: Wind Speed
Keyword: Wind Velocity
Sensor_Name: HUMIDITY SENSORS
Sensor_Name: INFRARED THERMOMETERS
Sensor_Name: NET RADIOMETERS
Sensor_Name: PRESSURE SENSORS
Sensor_Name: RADIOMETERS
Sensor_Name: RAIN GAUGES
Sensor_Name: SOIL MOISTURE PROBE
Sensor_Name: TEMPERATURE LOGGERS
Sensor_Name: TEMPERATURE PROBES
Sensor_Name: THERMOCOUPLES
Sensor_Name: ULTRASONIC DEPTH GAUGE
Sensor_Name: WIND VANES
Source_Name: FIXED OBSERVATION STATIONS
Source_Name: GROUND-BASED OBSERVATIONS
Source_Name: GROUND STATIONS
Source_Name: METEOROLOGICAL STATIONS
Group: Temporal_Coverage
   Start_Date: 2002-09-20
   Stop_Date: 2003-10-01
End_Group
Data_Set_Progress: in work
Group: Spatial_Coverage
   Southernmost_Latitude: 39.5
   Northernmost_Latitude: 41
   Westernmost_Longitude: -107.5
   Easternmost_Longitude: -105
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: UNITED STATES OF AMERICA
   Detailed_Location: COLORADO
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: NORTHERN HEMISPHERE
End_Group
Project: CLPX > Cold Land Processes Field Experiment
Group: Quality

   The available data product has been processed to a Level 1 standard.  This 
   means that raw data (Level 0 data), which was downloaded on approximately a 
   monthly basis, haveeen concatenated into one continuous file per 
   meteorological tower. Data have then been filtered twice for faulty values.  
   The first filtering process was done manually in order to recognize 
   instrument, wiring, or programming problems.  The second filtering process was 
   done computationally to remove blank values or any faulty values that fall 
   outside of acceptable boundaries for each instrument.  Faulty data and missing 
   data were replaced with a default value of 8999.

   Data that were considered suspect during manual filtering were left in Level 1 
   files even after they were identified as suspect.  This was done when 
   technicians recognized potential inconsistencies but were either unsure of the 
   cause or were unable to verify their assumptions.  Rather than alter the 
   dataset without definitive proof of faulty data, data were left for further 
   interpretation and quality control by future investigators. Although we have a 
   high level of confidence in the products that are delivered in this dataset, 
   future investigators should implement their own quality control procedures.  A 
   qualitative assessment of potentially faulty data is provided.

End_Group
Data_Set_Language: English
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 345 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Summary

   This data set contains meteorological observations at ten sites throughout the 
   Small Regional Study Area (SRSA) of the Cold Land Processes Field Experiment 
   (CLPX) in Fraser, Colorado, USA. Nine identical meteorological towers were 
   located close to the center of each Intensive Study Area (ISA). Another 
   meteorological tower was located close to the Local-Scale Observation Site 
   (LSOS) within the Fraser Meso-Cell Study Area (MSA). At each site, 
   measurements were made at 10 m above ground level (air temperature, relative 
   humidity, radiation, leaf wetness, wind speed, and direction); approximately 1 
   m above maximum anticipated snow depth (air temperature, relative humidity, 
   wind speed, wind direction and, in the North Park MSA only, precipitation); 
   and snow depth, snow surface temperature, snow temperature profile, soil 
   moisture, and soil temperatures. Snow pits were also dug at the meteorological 
   sites, and snow density, temperature, and stratigraphy were recorded. 
   Meteorological observations were recorded at a 10-minute temporal resolution 
   between 20 September 2002 and 1 October 2003, although data were not 
   necessarily continuous throughout this time period for all towers. 
   Meteorological measurements were made to support investigations of spatial and 
   temporal variations in accumulation and ablation of the seasonal snowpack 
   within the study areas. 

   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.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/clpx/
   Description: CLPX Site
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/clpx/clpx_pits.html
   Description: CLPX Snow Pits
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/forms/nsidc0112.html
   Description: Register as a CLPX user
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2004-02-01
Last_DIF_Revision_Date: 2013-06-28
DIF_Revision_History:  updated version and citation