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

Description

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.

Resources

Name Format Description Link
53 https://www.envidat.ch/dataset/10-16904-10/resource/c97df0fe-0691-4123-9d12-73909311f289
34 https://www.envidat.ch/dataset/10-16904-10/resource/622ba326-7828-4f83-868c-94ad784c1841
57 https://www.envidat.ch/dataset/10-16904-10/resource/0425d29f-b2cd-4092-afe6-00ca6fbd2303
57 https://www.envidat.ch/dataset/10-16904-10/resource/fb937402-fc94-4121-9d55-809664005628
57 https://www.envidat.ch/dataset/10-16904-10/resource/81cb8412-b9bf-4ac8-a65b-7fdd0c597087
57 https://www.envidat.ch/dataset/10-16904-10/resource/9e551281-5120-4041-860e-8d2fc911c9dd
57 https://www.envidat.ch/dataset/10-16904-10/resource/d9037751-fbdf-438c-a1b0-03aa3301c065
57 https://www.envidat.ch/dataset/10-16904-10/resource/60ca7742-4ab9-49f6-9318-3dac0c4ae4bd
57 https://www.envidat.ch/dataset/10-16904-10/resource/25ce04fb-452c-439e-b1fe-8ef2ccb1ea4e
57 https://www.envidat.ch/dataset/10-16904-10/resource/e78a7861-5a9d-458f-b66d-d180292f6840
57 https://www.envidat.ch/dataset/10-16904-10/resource/96640b5b-18e4-4de4-b19b-d8be3fabe9a6
57 https://www.envidat.ch/dataset/10-16904-10/resource/68c609d2-beb3-45b7-bbd4-cdf33de5f6e1
57 https://www.envidat.ch/dataset/10-16904-10/resource/b5c85840-bf9f-4605-b4c7-9d05b00f2cdc
57 https://www.envidat.ch/dataset/10-16904-10/resource/3e7cd0af-60cb-4026-8e8f-7c0736c45f5b
57 https://www.envidat.ch/dataset/10-16904-10/resource/486e31a9-78e2-4736-9cad-a40c0958662c
57 https://www.envidat.ch/dataset/10-16904-10/resource/43081c3a-5d6c-4f7c-9259-b221e82f9b61
57 https://www.envidat.ch/dataset/10-16904-10/resource/9e551281-5120-4041-860e-8d2fc911c9dd
57 https://www.envidat.ch/dataset/10-16904-10/resource/25ce04fb-452c-439e-b1fe-8ef2ccb1ea4e
57 https://www.envidat.ch/dataset/10-16904-10/resource/81cb8412-b9bf-4ac8-a65b-7fdd0c597087
57 https://www.envidat.ch/dataset/10-16904-10/resource/68c609d2-beb3-45b7-bbd4-cdf33de5f6e1
57 https://www.envidat.ch/dataset/10-16904-10/resource/486e31a9-78e2-4736-9cad-a40c0958662c
57 https://www.envidat.ch/dataset/10-16904-10/resource/43081c3a-5d6c-4f7c-9259-b221e82f9b61
34 https://www.envidat.ch/dataset/10-16904-10/resource/622ba326-7828-4f83-868c-94ad784c1841
57 https://www.envidat.ch/dataset/10-16904-10/resource/d9037751-fbdf-438c-a1b0-03aa3301c065
57 https://www.envidat.ch/dataset/10-16904-10/resource/b5c85840-bf9f-4605-b4c7-9d05b00f2cdc
57 https://www.envidat.ch/dataset/10-16904-10/resource/fb937402-fc94-4121-9d55-809664005628
57 https://www.envidat.ch/dataset/10-16904-10/resource/3e7cd0af-60cb-4026-8e8f-7c0736c45f5b
57 https://www.envidat.ch/dataset/10-16904-10/resource/e78a7861-5a9d-458f-b66d-d180292f6840
57 https://www.envidat.ch/dataset/10-16904-10/resource/60ca7742-4ab9-49f6-9318-3dac0c4ae4bd
57 https://www.envidat.ch/dataset/10-16904-10/resource/0425d29f-b2cd-4092-afe6-00ca6fbd2303
57 https://www.envidat.ch/dataset/10-16904-10/resource/96640b5b-18e4-4de4-b19b-d8be3fabe9a6
53 https://www.envidat.ch/dataset/10-16904-10/resource/c97df0fe-0691-4123-9d12-73909311f289

Tags

  • patchy-snow-covers
  • turbulent-sensible-heat-fluxes
  • eddy-covariance-measurements
  • dischmex
  • snow-patch

Topics

  • EDUC

Categories