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Vertical Mode Initialization in a Limited Area Data Assimilation Experiment
Publisher: American Meteorological Society
Abstract: A previously reported 9-day limited area data assimilation experiment has been reported, incorporating a recently developed nonlinear vertical mode initialization scheme. It is shown that the initialization scheme significantly ...
On the Selection of Grids for Semi-Implicit Schemes
Publisher: American Meteorological Society
Abstract: It is shown that semi-implicit time differencing on a nonstaggered grid using centered time and space derivatives leads to a decoupling into four separate solutions on different subgrids. This deficiency may be successfully ...
Hemispheric-Scale Seasonality of the Southern Annular Mode and Impacts on the Climate of New Zealand
Publisher: American Meteorological Society
Abstract: The seasonality of the southern annular mode (SAM) and the resulting impacts on the climate variability of New Zealand (NZ) are investigated. As with previous studies, during summer the SAM is found to be largely zonally ...
The ANMRC Limited-Area Model: Consolidated Formulation and Operational Results
Publisher: American Meteorological Society
Abstract: The most recent version of the Australian Numerical Meteorology Research Centre limited-area primitive equations model is described in this paper. A staggered grid system has been introduced, the semi-implicit equations ...
S-Band FMCW Radar Measurements of Ocean Surface Dynamics
Publisher: American Meteorological Society
Abstract: A ground-based frequency-modulated continuous wave microwave radar has been developed and applied to the measurement of ocean surface velocities. Full Doppler spectra are available, and both range and lime variations of ...
Impacts of Land Surface Model Complexity on a Regional Simulation of a Tropical Synoptic Event
Publisher: American Meteorological Society
Abstract: A multimode Chameleon Surface Model (CHASM) with different levels of complexity in parameterizing surface energy balance is coupled to a limited-area model (DARLAM) to investigate the impacts of complexity in land surface ...
Limited-Area Model Sensitivity to the Complexity of Representation of the Land Surface Energy Balance
Publisher: American Meteorological Society
Abstract: By coupling a multimode land surface scheme with a regional climate model, three scientific issues are addressed in this paper: (i) the regional model's sensitivity to the different levels of complexity presented by the ...
LANFEX: A Field and Modeling Study to Improve Our Understanding and Forecasting of Radiation Fog
Publisher: American Meteorological Society
Abstract: AbstractFog is a high-impact weather phenomenon affecting human activity, including aviation, transport, and health. Its prediction is a longstanding issue for weather forecast models. The success of a forecast depends on ...
COLPEX: Field and Numerical Studies over a Region of Small Hills
Publisher: American Meteorological Society
Abstract: able nighttime periods, large variations in temperature and visibility often occur over short distances in regions of only moderate topography. These are of great practical significance and yet pose major forecasting ...
The Tropical Air–Sea Propagation Study (TAPS)
Publisher: American Meteorological Society
Abstract: he purpose of the Tropical Air?Sea Propagation Study (TAPS), which was conducted during November?December 2013, was to gather coordinated atmospheric and radio frequency (RF) data, offshore of northeastern Australia, in ...