Mesoscale and Microscale Meteorology National Center for Atmospheric Research

Niwot Ridge Pilot Experiment Information

• Scientific Goals:

  • To understand the significance of the horizontal transport of CO_2 in the nocturnal boundary layer.
    
  • To study correlations between CO_2 transport and surface heteorogeneity.
    
  • The expected results will help to better understand the global carbon balance.
    
  • A detailed description of the scientific motivation and goals: pdf
  
  
• Meeting notes .
  
• List of Participants
  
• Area maps:
  • Overview map of the area
    
  • Map of the CU Ameriflux Tower, USGS Towers, and NCAR Towers
    
  • Towers/Instruments with an IR Orthophoto Image overlay at 0.8-km Scale
    
  • 1 km DEM map with towers
    
  • 2 km DEM map with towers
    
  • CIR Orthographic Image of the Research Area (courtesy of LTER ).
    The photos to create this image were taken on 27 August 1990 as part of the NHAP/NAPP Program .
    For more info on the image go here
    For an overlay of the image and towers at different scales go here
    
• Differential GPS Locations of the instruments at the Ameriflux Tower Site
  
• All the available variable names
  
• Britt LiCor Intercomparison Details
  
• Facilities:
  • NCAR Towers (West=s1, NCAR Tower=s2, East=s3, Central=ce)
    
    • NCAR ATD Niwot02 Webpage
    • Instrumentation Layout: png or pdf
    • Data Available: T, Tsoil, RH, Barometric Pressure, Wind Speed/Dir, Precip , ?
  • NCAR Hydra
    • NCAR ATD Niwot02 Webpage
    • Hydra information
      
    • Inlet Locations: png or pdf
  • Tether Balloon
    • Balloon1 will have 3 RMT DX6100 gas analyzers.
    • Balloon2 will have 1 LiCor 6262 gas analyzers.
• Area existing facilities
  • CU Ameriflux Tower site:
    • CU Ameriflux Site Webpage (Monson/Turnipseed)
    • Instrumentation Layout: gif or pdf
    • One above canopy tower (26m) and one 6m mini-tower (plus several in-canopy towers).
    • 26 m Tower (and 6-m "mini-tower") Details:
      • GPS Location: 40 deg., 1' 58.4" N, 105 deg., 32' 47.0" W, Elevatation=30 50 m.
      • Instrumentation Table
    • Other Measurements at the CU Ameriflux Site: Table
  • USGS Towers
    • Part of Earth Surface Dynamics Research at USGS (Anderson)
    • Instrumentation Layout: png or pdf
    • One above canopy tower (33 m), an 8 m tower, and one 6 m tower.
    • 33 m Tower Details:
    • Location: about 150m SW of the CU Ameriflux 26 m tower.
    • Instrumentation Table
    • Subcanopy 6 m "North" Tower Details:
    • Location: about 75m True N of the LiCor shack.
    • Instruments at 2 levels: 1m and 6m. (not yet equipped with sonics)
    • Subcanopy 6 m "South" Tower Details:
    • Location: about 100m S-SW of the CU Ameriflux 26 m tower.
    • Instruments at 2 levels: 1m and 6m.
    • Instrumentation Table
  • C-1 MET Station (NOAA C-1 Climate Station)
    
    • Niwot Ridge LTER Webpage
    • Below Niwot Ridge at 3022m (9,912 ft).
    • North of Ameriflux Tower (near the road?)
    • Data Available: T, Tsoil, RH, Barometric Pressure, Wind Speed/Dir, Precip , ?
  • Niwot Ridge Saddle MET Station
    
    • Niwot Ridge LTER Webpage
    • On Niwot Ridge at 3528m (11,572 ft).
    • Data Available: T, Tsoil, RH, Barometric Pressure, Wind Speed/Dir, Precip , ?
    • Location of the Tundracam
  • D-1 MET Station
    
    • Niwot Ridge LTER Webpage
    • On Niwot Ridge at 3739m (12,264 ft).
    • Data Available: T, Tsoil, RH, Barometric Pressure, Wind Speed/Dir, Precip , ?
  • List of Relevant Papers and Reports
    
  • Example Plots (Using CU Ameriflux Tower Data).
    
  • Site Photos:
    • 2001: August - Site Visit
      
    • 2002:
      (29 July), Site visit
      (13 August), Images of Balloon, Instruments on CU Tower
      (19 August), Hydra (in lab)
      (20 August), Hydra Deployment
      (10 September), Site Visit, Tower Photos
      (16 September), LiCor Intercomparison
      (30 September), Teardown, Tower Photos
      

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    Related Sites:

    • ATD Webpage for the Pilot Project
      
    • Niwot Ridge Ameriflux tower webpage : Main information source
      
    • University of Colorado Mountain Research Station (MRS)
      
    • Niwot Ridge Long-Term Ecological Research (LTER): GIS and Other Information
      
    • CU AmeriFlux Daily Log
      
    • GIS Information/Data for Boulder County
      

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    For more information contact:
    Jielun Sun (jsun@ucar.edu)
    Sean Burns (sean@ucar.edu)
    
    

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    Copyright © UCAR 2001 - Photo Credits - Disclaimer - mmminfo@ncar.ucar.edu

    Last Modified: 14 May 2001