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Infilled climate and heat flux data for Tvan towers data loggers (CR3000) from 2008-1-1 to ongoing, daily

Data set creator(s): John Knowles; Peter Blanken

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For methodology questions, contact Peter Blanken
University of Colorado, UCB 260

Boulder, CO 80303

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Two identical 3-meter towers were installed near T-Van in 2007, and continuous meteorological and eddy covariance data are presented beginning in 2008. The sampling interval was 5 seconds for the meteorological data and 10 Hz for the eddy covariance data, and 30-minute means of all variables were calculated using a Campbell Scientific CR3000 datalogger. The 30-minute mean data were subsequently averaged to create this 24-hour mean dataset. Information about specific sensors, instrumental orientation, units, and data post-processing and infilling procedures are contained in the metadata for this file.


Eddy covariance towers were located near Tvan in alpine tundra fellfield/dry meadow vegetation. The east tower (3502 m asl) was situated 50 horizontal meters northwest of T-Van (source of 120-V AC power), and the west tower (3504 m asl) was 50 horizontal meters west of the east tower along the prevailing wind direction and a 7.8% snow-scoured slope.  
Latitude: 40 degrees 03 minutes 11 seconds north
Longitude: 105 degrees 35 minutes 11 seconds west

Date Range:

2008-1-1 to ongoing




air temperature, relative humidity, air pressure, wind speed, wind direction, net radiation, soil temperature, volumetric water content, latent heat flux, sensible heat flux, soil heat flux, net ecosystem exchange

Location: Tvan towers data loggers (CR3000)

At a glance:

T-Van, photo credit: John Knowles


Location Group: Tvan

Found within: Niwot Ridge (USFS - UNESCO Biosphere Reserve)
Located in: USFS - UNESCO Biosphere Reserve
(Click to learn more about these locations)

More data from: Tvan

Core Data Set: No
Discipline: Climatology/meteorology, Biogeochemistry
Award Or Grant: DEB1637686

Data Citation

Knowles, John. Blanken, Peter. 2019. Infilled climate and heat flux data for Tvan towers data loggers (CR3000) from 2008-1-1 to ongoing, daily.

CU Boulder

This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-1637686. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necesarily reflect the views of the National Science Foundation.

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