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Climate data for D1 chart recorder from 1982-1-1 to 1988-1-31, daily

Data set creator(s): Mark Losleben

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INSTAAR, University of Colorado
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Boulder, CO 80309-0450
(720) 369-3550

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Data Usage Summary
  • Data Use Policy

    1. Use our data freely. All Niwot LTER data products (except some recent data sets for which metadata but not data are available) are released to the public and may be freely copied, distributed, edited, remixed, and built upon under the condition that you provide acknowledgement as described below.

    2. Give proper acknowledgement. Publications, models and data products that make use of these data sets must include proper acknowledgement, including citing data sets in a similar way to citing a journal article. See http://www.datacite.org/whycitedata). The following acknowledgment should accompany any publication or citation of these data: Logistical support and/or data were provided by the NSF supported Niwot Ridge Long-Term Ecological Research project and the University of Colorado Mountain Research Station

    3. Let us know how you will use the data. The data set creators and Niwot LTER would appreciate hearing of any plans to use the data set. Consider consultation or collaboration with data set creators.

    4. Although efforts have been made to ensure that these data are of the highest quality, the possibility of errors exists. Plase notify the data manager of any errors at lternwt@colorado.edu.

Abstract:

Climatological data were collected from a Niwot Ridge climate station (D1 at 3743 m) throughout the year. Parameters measured were temperature, relative humidity, solar radiation, wind speed and run of wind. The station was instrumented with a thermohygrograph (regularly calibrated and checked with maximum and minimum thermometers and psychrometers), which was equipped with a Bourdon tube (to measure temperature) and a banjo-spread hair element (to measure relative humidity). The thermohygrograph was situated in a white, all wood, louvered Stevenson screen which was oriented with the door facing north. Solar radiation was recorded on a bimetalic strip mechanical actinometer. Ninety percent of solar radiation from 360 to 2000 nm was transmitted through the instrument's glass dome. Wind speed (peak gust) was measured with a 3-cup, AC-generating anemometer that continuously recorded onto an Esterline Angus strip chart recorder. Run of wind was measured with a Belfort totalizing cup anenometer with a counter (at a height of approximately 3 meters above ground).  Average wind speed was calculated from the peak gust trace. The thermohygrograph and actinometer both used wind-up or battery-driven clock drives that rotated the recording chart on a right cylindrical drum with a fixed period between 24 h and 861 h depending on the gears used. These clock mechanisms were virtually identical and therefore completely interchangeable among the instruments.

Location:

Study site was D1 (located on Niwot Ridge 2.6 km east of the Continental Divide). Original data are stored with the NWT LTER data manager and at the Mountain Research Station.

Date Range:

1982-1-1 to 1988-1-31

Frequency:

daily

Variables:

maximum air temperature, minimum air temperature, mean air temperature, maximum relative humidity, minimum relative humidity, mean relative humidity, maximum wind speed, mean wind speed, run of wind, total solar radiation, solar radiation as percent of solar constant

Location: D1 chart recorder

At a glance:

D1 site
Elevation: 3750 m

 

Location Group: D1

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

More data from: D1

Core Data Set: No
Discipline: Climatology/meteorology

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Creator(s)
Reference(s)
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Data Citation

Losleben, Mark. 2018. Climate data for D1 chart recorder from 1982-1-1 to 1988-1-31, daily. http://niwot.colorado.edu

Instaar
Instaar
NSF
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.

Please contact lternwt@colorado.edu with questions, comments, or for technical assistance regarding this website.

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