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WLEF High-Frequency Flux Data

Project:

CHEESEHEAD

Summary

This dataset contains the 10 Hz turbulent time series of sonic anemometer 3D winds, CO2, CH4 and H2O concentrations from the WLEF-TV US-PFa Park Falls very tall Ameriflux tower over the Chequamegon Heterogeneous Ecosystem Energy-balance Study Enabled by a High-density Extensive Array of Detectors (CHEESEHEAD) observation period. Raw data is sonic coordinate system, while corrected is after planar fit rotation and lag time correction. Note that corrected data files have "rotated_lagged" in the file names. This dataset has quality assurance and quality control applied that follows the University of Wisconsin standard tower practices and is reviewed by the DOI Ameriflux program. Plausible ranges, sensor quality flags, suspect periods, known maintenance times, and sensor flatlines are all identified and suspect data are removed. Data streams are also visually inspected for additional outliers. See the related links for the Berger et al 2001 J Tech publication to learn more about how this dataset is qualtiy controlled.

Data access

ORDER data for delivery by FTP

user agreement required

Additional information

Identifier	DOI: https://doi.org/10.26023/F5DY-MBTD-QF07
Data Quality	final
Versions	0.1 (2020-03-25)
Subscribe	Subscribe to receive email when new or updated data is available.
Related projects	CHEESEHEAD: Chequamegon Heterogeneous Ecosystem Energy-balance Study Enabled by a High-density Extensive Array of Detectors
Frequency	< 1 second
Language	English
Categories	Flux
Platforms	Flux Tower
Instruments	IRGA - Infrared Gas Analyzers Sonic Anemometer
GCMD Science Keywords	ATMOSPHERIC CARBON DIOXIDE BOUNDARY LAYER TEMPERATURE BOUNDARY LAYER WINDS METHANE U/V WIND COMPONENTS VERTICAL WIND VELOCITY/SPEED Expand keywords
Documentation	readme_UWM_WLEF_HighFreqFlux0-ard.pdf [208 KiB]
Restrictions	user agreement required: cheesehead_policy.html [5 KiB]
Related links	companion: 592.095: CHEESEHEAD 2019 Project Documentation info: Long-Term Carbon Dioxide Fluxes from a Very Tall Tower in a Northern Forest: Flux Measurement Methodology

Temporal coverage

Begin datetime	2019-06-01 00:00:00
End datetime	2019-10-31 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 45.946, Minimum (South) Latitude: 45.946
Minimum (West) Longitude: -90.272, Maximum (East) Longitude: -90.272

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

author: Ankur Desai <desai@aos.wisc.edu>
author: Jonathan Thom <jthom@ssec.wisc.edu>

Citation

Example citation following ESIP guidelines:

Desai, A., Thom, J. 2020. WLEF High-Frequency Flux Data. Version 0.1. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/F5DY-MBTD-QF07. Accessed 22 Mar 2023.

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