Soil temperature series in Vallon de Nant catchment, Switzerland

• Main Author: Vittoz, Pascal
• Format: Dataset
• Language: English
• Published: Zenodo 2021
• Subjects: Vallon de Nant; Alps; temperature; record; Switzerland; soil; Polygonum viviparum; Salix herbacea
• Online Access: https://dx.doi.org/10.5281/zenodo.4715668; https://zenodo.org/record/4715668

Soil temperature has been recorded continuously at 4 sites in the Vallon de Nant, Switzerland, from July 21st, 2009 to November 16th, 2018. The elevation of the sites ranges between 1240 and 2640 m asl. All plots are on calcareous bedrock. Dominant species are: T1: montane forest dominated by Fagus sylvatica and Abies alba in overstorey, Sanicula europaea and Oxalis acetosella in understorey. T2: mesohygrophilous, subalpine pasture dominated by Carex ferruginea and Alchemilla vulgaris. T3: lower alpine, mesophilous grassland, dominated by Festuca melanopsis, Sesleria caerulea and Carex ferruginea. T4: upper alpine grassland, dominaed by Salix herbacea, Salix retusa and Polygonum viviparum. Measures are realized every hour using a temperature logger GeoPrecision M-Log5W (GeoPrecision GmbH, Ettlingen, Germany) with an accuracy of +/- 0.1°C @0°C. For more information see http://www.geoprecision.com/en/ Description of files: - coordinates.csv: elevation and geographic coordinates (in WGS84 and CH1903) of the sites, start and end date of each time series and number of missing points. - coordinates.xlsx: same file in xlsx format. - data.csv: timeline (in dd/mm/yyy HH/MM format) and time series of temperatures (in °C) at the 4 sites. - data.xlsx: same file in xlsx format. - matlab_data.mat: data in MatLab format with 't' the timeline, 'data' a matrix of 4 columns with temperature data, and 'alt' and 'name' the altitude and name of the 4 points, respectively. - soil_temperature.png: a plot of the timeseries. - T1_1240m.jpg: picture of the site T1 in the Vallon de Nant. - T2_1530m.jpg: picture of the site T2 in the Vallon de Nant. - T3_2150m.jpg: picture of the site T3 in the Vallon de Nant. - T4_2650m.jpg: picture of the site T4 in the Vallon de Nant. Contact: Pascal Vittoz, Institute of Earth surface dynamics, University of Lausanne; [e-mail]