Author:

Keywords:

Science & Technology, Life Sciences & Biomedicine, Physical Sciences, Environmental Sciences, Meteorology & Atmospheric Sciences, Environmental Sciences & Ecology, agrometeorology, soil temperature, simulation model, soil climate, soil freezing and thawing, soil cover effects, agricultural soils, SURFACE-TEMPERATURE, CLIMATE-CHANGE, MODEL, WATER, RADIATION, DYNAMICS, PREDICTION, SUBMODEL, MOISTURE, PLANT, 0401 Atmospheric Sciences, 0502 Environmental Science and Management, 3701 Atmospheric sciences, 3702 Climate change science

Abstract:

A one-dimensional simulation model that simulates daily mean soil temperature on a daily time-step basis, named AGRISOTES (AGRIcultural SOil TEmperature Simulation), is described. It considers ground coverage by biomass or a snow layer and accounts for the freeze/thaw effect of soil water. The model is designed for use on agricultural land with limited (and mostly easily available) input data, for estimating soil temperature spatial patterns, for single sites (as a stand-alone version), or in context with agrometeorological and agronomic models. The calibration and validation of the model are carried out on measured soil temperatures in experimental fields and other measurement sites with various climates, agricultural land uses and soil conditions in Europe. The model validation shows good results, but they are determined strongly by the quality and representativeness of the measured or estimated input parameters to which the model is most sensitive, particularly soil cover dynamics (biomass and snow cover), soil pore volume, soil texture and water content over the soil column.