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Climate data for D1 data loggers (CR23X and CR1000) from 2000-7-5 to ongoing, 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 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

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Climatological data were collected from a Niwot Ridge climate station (D1) throughout the year. From July 5 2000 through October 23 2013, data were recorded using a Campbell Instruments CR23X data logger. Subsequently, data were recorded
using a Campbell Instruments CR1000 data logger. Maximum and minimum values are recorded instantaneously, with a sampling interval of 5 seconds. Daily averages and totals were calculated from 17,280 individual measurements. This instrument was programmed to generate both hourly and daily output. Beginning in June 25 2009, 10 minute output was also generated. Daily output generated by the logger ended in 2014.


Study site was D1 (located on Niwot Ridge 2.6 km east of the Continental Divide). Raw data are stored on the Niwot Ridge LTER server.

Date Range:

2000-7-5 to ongoing




maximum temperature, minimum temperature, average temperature, maximum relative humidity, minimum relative humidity, average relative humidity, maximum barometric pressure, minimum barometric pressure, average barometric pressure, maximum wind speed, time of maximum wind speed, minimum wind speed, average wind speed, average wind direction, average solar radiation, total solar radiation, average soil temperature 5 cm depth, average soil moisture 5 cm depth

Location: D1 data loggers (CR23X and CR1000)

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
Award Or Grant: DEB1027341, DEB1637686

Data Citation

Losleben, Mark. 2019. Climate data for D1 data loggers (CR23X and CR1000) from 2000-7-5 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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