With projected increases in temperature in the future, the amount of water vapour that can be held at saturation – before it condenses into clouds, dew or water film – increases exponentially. As this deficit increases plants tend to close their stomata, which reduces water fluxes into the boundary layer. Do models currently capture the observed leaf-level response to increasing vapour pressure deficit? What about at very high levels of this deficit?
Tag Archive: Hawkesbury Institute for the Environment
As this newsletter goes to press, Bureau of Meteorology rainfall records show most of NSW and substantial parts of south-west Queensland remain in drought. Beyond the immediate agricultural, hydrologic and ecologic impacts, many small rural towns are starting to run out of water.
The application of a simple carbon balance model, combined with a data assimilation approach, has the potential to improve the process understanding embedded in models, which is used to predict responses of the carbon cycle to climate change.