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How do heat and drought connect to weather and landscape?

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Weather Research and Forecasting Model

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Heat and drought are interconnected with weather and landscape in various ways. Extreme weather events like droughts and heatwaves can significantly impact forest ecosystems. For instance, in the Pantanal wetland, a severe drought in 2020 led to record-breaking wildfires due to the compound effect of dry conditions and high temperatures, highlighting the influence of land-atmosphere feedbacks on fire risk. Additionally, in the Southwest United States, a heatwave exacerbated by severe drought conditions demonstrated how preexisting drought can intensify heatwaves through land-atmosphere feedbacks. Furthermore, studies in southeast Australia showed that drought can alter bird assemblages in landscapes with varying levels of native vegetation cover, indicating how landscape properties can influence the impact of drought on biotic communities. These findings underscore the complex interactions between heat, drought, weather, and landscape dynamics.

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Open access•Journal Article•DOI Inferring drought and heat sensitivity across a Mediterranean forest region in southwest Western Australia: a comparison of approaches N.C. Brouwers, R. van Dongen, George Matusick, Nicholas C. Coops, G. Strelein, Giles E. St. J. Hardy - Show less +5 more 01 Oct 2015-Forestry 15 Citations	Heat and drought impact landscape through satellite imagery-based mapping, probability models, and sensitivity analysis, aiding in understanding and managing forest ecosystems under changing climate conditions.
Open access•Journal Article•DOI Cascading Drought‐Heat Dynamics During the 2021 Southwest United States Heatwave Christian Peters 24 Jun 2022-Geophysical Research Letters 9 Citations	Heat and drought interact in a cascading manner, impacting weather and landscapes. Drought alters the surface energy budget, influencing lower atmosphere temperatures and circulations, potentially exacerbating heatwaves.
Open access•Journal Article•DOI Landscape properties mediate the homogenization of bird assemblages during climatic extremes Angie Haslem, Dale G. Nimmo, James Q. Radford, Andrew F. Bennett - Show less +3 more 01 Dec 2015-Ecology 24 Citations	Extreme weather events like drought impact bird assemblages. Landscape properties influence changes in bird communities during climatic extremes, potentially mediating homogenization or differentiation across landscapes.
Open access•Journal Article•DOI Landscape-scale assessment of tree crown dieback following extreme drought and heat in a Mediterranean eucalypt forest ecosystem N.C. Brouwers, George Matusick, Katinka X. Ruthrof, T.J. Lyons, Giles E. St. J. Hardy - Show less +4 more 01 Jan 2013-Landscape Ecology 100 Citations	Heat and drought impact tree crown dieback in a Mediterranean eucalypt forest, with factors like geology, topography, and climate influencing vulnerability, highlighting landscape-scale effects of extreme weather events.
Posted Content•DOI The impact of compound drought and heatwave events on the unprecedented 2020 fire season in the Pantanal, Brazil 27 Mar 2022	Compound drought and heatwaves exacerbate fire risk by creating hot spells with high temperatures, leading to ideal conditions for atmospheric heating, evaporation, and precipitation deficits, impacting landscapes and weather patterns.

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