Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Coupled initialization in an ocean-atmosphere tropical cyclone prediction system Abstract A coupled ocean–atmosphere dynamical ensemble prediction system is used to study coupled initialization and bred cyclic modes in the case of Tropical Cyclone (TC) Yasi. Ocean initial perturbations are constructed to identify the fastestgrowing nonlinear modes in the ocean response to the TC. The ensemble provides a characterization ofhowinitial andevolving dynamical ocean perturbations...
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Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Climate and competition in abundance trends in native and invasive Tasmanian gulls Abstract Climate and competition influence seabird population size yet are rarely considered simultaneously. Here, we consider the influence of climate on nominal abundance trends, and test for evidence of interspecific competition based on 31 yr of count data from 3 co-occurring gull species in southeastern Tasmania. The silver gull Chroicocephalus novaehollandiae and Pacific gull Larus...
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Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
The Southwest Pacific Ocean circulation and climate Abstract The Southwest Pacific Ocean Circulation and Climate Experiment (SPICE) is an international research program under the auspices of CLIVAR. The key objectives are to understand the Southwest Pacific Ocean circulation and the South Pacific Convergence Zone (SPCZ) dynamics, as well as their influence on regional and basin-scale climate patterns. South Pacific thermocline waters are transported in the westward flowing...
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Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Self-energy stochastic subgrid modelling in simulations of quasi-geostrophic and boundary layer flows Abstract Stochastic models are developed for the subgrid turbulence interactions in simulations of three-dimensional boundary layers, and quasi-geostrophic atmospheres and oceans. In geophysical (and engineering) simulations it is not possible to resolve all scales of motion, so one must resort to large eddy simulation (LES), where the large eddies are resolved on a...
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Posted by Liz Adams on Aug 28, 2015 in Abstracts, Abstracts 2015
Seasonality of biological and physical controls on surface ocean CO2 from hourly observations at the Southern Ocean Time Series site south of Australia Abstract The Subantarctic Zone (SAZ) is important for air-sea CO2 exchange, ventilation of the lower thermocline, and nutrient supply to global ocean productivity. Here we present the fi rst high-resolution autonomous observations of mixed layer CO2 partial pressure (pCO2) and hydrographic properties covering a full annual...
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