Microclimate modelling at macro scales: a test of a general microclimate model integrated with gridded continental-scale soil and weather data
AuthorKearney, MR; Shamakhy, A; Tingley, R; Karoly, DJ; Hoffmann, AA; Briggs, PR; Porter, WP
Source TitleMethods in Ecology and Evolution
University of Melbourne Author/sKearney, Michael; Tingley, Reid; Hoffmann, Ary; SHAMAKHY, ALIREZA; Karoly, David
AffiliationArchitecture, Building and Planning
School of Botany
School of Earth Sciences
Document TypeJournal Article
CitationsKearney, MR; Shamakhy, A; Tingley, R; Karoly, DJ; Hoffmann, AA; Briggs, PR; Porter, WP, Microclimate modelling at macro scales: a test of a general microclimate model integrated with gridded continental-scale soil and weather data, Methods in Ecology and Evolution, 2014, 5 (3), pp. 273 - 286
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The microclimate experienced by organisms is determined by local weather conditions. Yet the environmental data available for predicting the effect of climate on the distribution and abundance of organisms are typically in the form of long-term average monthly climate measured at standardized heights above the ground.Here, we demonstrate how hourly microclimates can be modelled mechanistically over decades at the continental scale with biologically suitable accuracy.We extend the microclimate model of the software package niche mapper to capture spatial and temporal variation in soil thermal properties and integrate it with gridded soil and weather data for Australia at 0 center dot 05 degrees resolution.When tested against historical observations of soil temperature, the microclimate model predicted 85% of the variation in hourly soil temperature across 10years from the surface to 1m deep with an accuracy of 2-3 center dot 3 degrees C (c. 10% of the temperature range at a given depth) across an extremely climatically diverse range of sites.This capacity to accurately and mechanistically predict hourly local microclimates across continental scales creates new opportunities for understanding how organisms respond to changes in climate.
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