Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 41, Issue 16, Pages 5883-5890Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/2014GL061179
Keywords
land-atmosphere coupling; land use and land cover change; GLACE; LUCID; WRF
Categories
Funding
- Australian Research Council [CE110001028]
- Australian postgraduate award
- CSIRO OCE
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The severity of recent droughts and heat waves have been linked to land-atmosphere feedbacks. However, investigations of how these feedbacks are influenced by land use and land cover change (LULCC) are limited. Using the Weather and Research Forecasting model with an ensemble framework of planetary boundary layer and cumulus parameterization schemes, we combine the Global Land Atmosphere Coupling Experiment methodology with LULCC to assess how LULCC affects land-atmosphere coupling strength for maximum temperature over Australia. We find a statistically significant decrease in soil moisture-temperature coupling over regions where forest changes to crops, which was consistent across the implemented model physics and background climate. This was associated with a decrease in the ensemble mean variance suggesting that LULCC influences regional climate variability via changes in the regional scale hydrology and surface energy balance. Our results highlight the need to consider land surface changes and coupling strength in combination, rather than in isolation.
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