DISCHMEX - Impact of extreme land-surface heterogeneity on micrometeorology over spring snow-cover

This dataset contains eddy-covariance measurements in the ablation period of 2014-2016. Measurements were taken from two turbulence towers over a long-lasting snow patch, which are 5 m apart from each other (2014 and 2015). The turbulence towers were equipped with two YOUNG ultrasonic anemometers mounted 0.7 m (in 2014) and 3.3 m (in 2015) above snow-free ground, two ultrasonic anemometers (CSAT3, Campbell Scientific, Inc.) mounted at 2.6 m (in 2014) and 2.2 m (in 2015) above snow-free ground and one anemometer (DA-600, Kaijo Denki) mounted at 0.3 m above snow surface.

The measurement setup changed in 2016 and includes a measurement above the snow-free ground in upwind direction (Swiss coordinates: 790191/176689). The measurement tower is equipped with one ultrasonic anemometer (CSAT3, Campbell Scientific, Inc.) in 3.3 m above the snow-free ground. Additionally, one measurement tower is installed above the long-Lasting snow patch and equipped with the same setup as 2015.

Turbulence data were sampled at a frequency of 20 Hz. The processing of the data to quality controlled fluxes has been done with the Biomicrometeorology flux software (Thomas et al., 2009). The program applies plausibility tests and a despiking test after Vickers and Mahrt (1997) on the measured data. The routine further applies a time-lag correction and considers the deployment (e.g. the sonic azimuth). A frequency response correction (Moore, 1986) is done and a three-dimensional rotation is performed. Finally, quality assurance/quality control (QA/QC) flags after Foken et al., (2004) are issued and fast Fourier transform power and co-spectra are calculated. The change in snow height is considered in the post-processing for every measurement day. The turbulence data were averaged to 30 minute intervals.

Funding Information:

This work was supported by:
  • Funding information not available.

Citation:

Mott, Rebecca; Schlögl, Sebastian; Dirks, Lisa; Lehning, Michael (2017). DISCHMEX - Impact of extreme land-surface heterogeneity on micrometeorology over spring snow-cover. WSL Institute for Snow and Avalanche Research SLF. doi:10.16904/10.

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DOI 10.16904/10
Publication State Published
Authors
  • Email: mottfoo(at)slf.ch Given Name: Rebecca Family Name: Mott Affiliation: WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Email: sebastian.schloeglfoo(at)slf.ch Given Name: Sebastian Family Name: Schlögl Affiliation: Ècole Polytechnique Fèdèrale de Lausanne, Lausanne, Switzerland School of Architecture, Civil and Environmental Engineering, Laboratory of Cryospheric Sciences (CRYOS) and WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Email: lisa.dirksfoo(at)stmail.uni-bayreuth.de Given Name: Lisa Family Name: Dirks Affiliation: WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
  • Email: lehningfoo(at)slf.ch Given Name: Michael Family Name: Lehning Affiliation: Ècole Polytechnique Fèdèrale de Lausanne, Lausanne, Switzerland School of Architecture, Civil and Environmental Engineering, Laboratory of Cryospheric Sciences (CRYOS) and WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland
Contact Person Given Name: Rebecca Family Name: Mott Email: mottfoo(at)slf.ch Affiliation: SLF
Subtitles
Publication Publisher: WSL Institute for Snow and Avalanche Research SLF Year: 2017
Dates
  • Type: Created Date: 2014-04-17 End Date: 2014-05-28
  • Type: Created Date: 2015-04-15 End Date: 2015-05-29
  • Type: Created Date: 2016-04-21 End Date: 2016-06-06
Version 1.0
Type Dataset
General Type Dataset
Language English
Location The dataset was recorded at the Gletschboden area (2094 m asl) in the upper Dischma valley, Davos, Switzerland. Swiss coordinates: 790211/176539
Content License ODbL with Database Contents License (DbCL)    [Open Data]
Last Updated October 31, 2019, 23:25 (UTC)
Created July 19, 2017, 07:02 (UTC)

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