Atmospheric response to sea surface temperature mesoscale structures
نویسندگان
چکیده
منابع مشابه
Simulations of the Atmospheric Response to South Atlantic Sea Surface Temperature Anomalies
The sensitivity of the atmospheric circulation to sea surface temperature (SST) anomalies over the tropical and subtropical South Atlantic is studied by means of simulations with an atmospheric general circulation model (GCM). Two cases are considered depending upon the prescribed SST anomalies. The first is observed to occur during austral summers in association with a strengthening of the Sou...
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The knowledge about mesoscale and sub-mesoscale sea surface current fields is of high interdisciplinary interest, since it results in a better understanding of ocean-atmosphere interactions. However, many available numerical model results are of resolutions, which are too coarse to investigate mesoscale and sub-mesoscale turbulent features like eddies, particularly in coastal waters. In this wo...
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The introduction into a mesoscale model of random (in space) variations in roughness length, or random (in space and time) surface perturbations of temperature and friction velocity, produces a measurable, but barely significant, response in the simulated flow dynamics of the lower atmosphere. The perturbations are an attempt to include the effects of sub-grid variability into the ensemble-mean...
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NOAA/AVHRR infrared satellite imagery is well suited to the study of mesoscale dynamic structures such as vortices or temperatures fronts. Since data are delivered on a daily basis, the problem of model-ing structures in these images is an important matter. We use the spline vector eld technique to compute a dense vector eld on an image such that speciic orbits of the eld correspond to the boun...
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A novel physics-based method for determination of sea surface temperature (SST) from AVHRR is explained in detail. Starting from the equation of radiative transfer in the mean value approximation, we use variational calculus to derive an expression relating the difference between the radiance calculated using a first guess atmospheric profile and the observed satellite radiance (∆I), to the cor...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 2013
ISSN: 2169-897X
DOI: 10.1002/jgrd.50769