Journal article

Decreases in relative humidity across Australia

Eleanor Denson, Conrad Wasko, Murray C Peel

ENVIRONMENTAL RESEARCH LETTERS | IOP PUBLISHING LTD | Published : 2021

Abstract

How relative humidity is changing is important for our understanding of future changes in precipitation and evaporation. For example, decreases in relative humidity have the potential to increase evaporation and evapotranspiration increasing water scarcity. Since projected precipitation changes are highly uncertain, there is significant research relating precipitation changes to more certain local temperature increases, but such research often assumes relative humidity will remain constant. Here, we investigate how absolute and relative humidity across Australia have changed over 1955-2020. Absolute humidity, measured by dew point temperature, has remained relatively constant, while relative..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

Conrad Wasko receives funding from The University of Melbourne McKenzie Postdoctoral Fellowship scheme and Australian Research Council (DE210100479, DP200101326). Data used in this study was obtained from the Australian Bureau of Meteorology at www.bom.gov.au/climate/data/stations/.The Nino 3.4 index is freely available from https://psl.noaa.gov/gcos_wgsp/Timeseries/Data/nino34.long.anom.data.Conrad Wasko acknowledges conversations with Chris Lucas and Johan Visser.