Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Improved air-sea flux algorithms in an ocean-atmosphere coupled model for simulation of global ocean SST and its tropical Pacific variability Abstract Enhanced algorithm for air-sea exchange parameterisation for momentum, sensible and latent heat flux parameterisation improves the climatic simulation of global sea surface temperature (SST) distribution and its Tropical Pacific variability. Based upon analyses and summary of field programs, we constructed new algorithms for...
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Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Assessing the impact of observations on ocean forecasts and reanalyses: Part 2, Regional applications Abstract Ocean forecast and reanalysis systems routinely assimilate ocean observations to constrain ocean models to predict the three-dimensional ocean circulation. Under GODAE OceanView the operational ocean modelling community has developed a suite of global ocean forecast and analysis systems. Each system has a critical dependence on ocean observations – routinely...
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Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Climate projections for southern Australian cool-season rainfall: insights from a downscaling comparison Abstract The projected drying of the extra-tropics under a warmer climate has large implications for natural systems and water security in southern Australia. Downscaling of global climate models offers the prospect of insights into the regional patterns of rainfall change in the mid-latitudes in the typically wetter cool season. The comparison of statistical and a...
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Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Extreme monthly rainfall in a changing climate Abstract The new CSIRO and BOM (2015) climate projections for Australia are largely based on simulations of the coming century from an ensemble of some 40 CMIP5 global climate models. By 2080-2099, with strong global warming under the RCP8.5 forcing scenario, the median projection for mean annual rainfall is a decrease of around 10%, aside from little change in northern Australia, however the 10 to 90 percentile range is...
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Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Impact of different solar penetration depths on climate simulations Abstract Three different estimates of shortwave attenuation depth (SWAD) of photosynthetically active radiation (PAR) derived from remotely sensed ocean colour data have been tested in an ocean general circulation model (OGCM) forced with interannual atmospheric forcings. Two estimates (referred to as Kd(PAR]_1^-1 and Kd(PAR]_2^-1 are calculated from different algorithms based on the diffusive attenuation...
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