منابع مشابه
Enhanced Predictions of Tides and Surges through Data Assimilation (TECHNICAL NOTE)
The regional waters in Singapore Strait are characterized by complex hydrodynamic phenomena as a result of the combined effect of three large water bodies viz. the South China Sea, the Andaman Sea, and the Java Sea. This leads to anomalies in water levels and generates residual currents. Numerical hydrodynamic models are generally used for predicting water levels in the ocean and seas. But thei...
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The data assimilation of stratospheric constituents is reviewed. Several data assimilation methods are introduced, with particular consideration to their application to stratospheric constituent measurements. Differences from meteorological data assimilation are outlined. Historically, two approaches have been used to carry out constituent assimilation. One approach has carried constituent assi...
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Using a linear version of the ECMWF radiative transfer code it is possible to evaluate the impact of a prescribed ozone climatology on the stratospheric temperatures produced by climate models. So far referenced ozone climatologies have been derived by compilations and simple spatial interpolations of satellite and soundings data with rather coarse vertical resolutions and sometimes inhomogeneo...
متن کاملThermal Tides in an Assimilation of Three Years of Thermal Emissionspectromenter Data from Mars Global Surveyor
Introduction. Thermal tides are particularly prominent in the Mars atmosphere with the result that temperature and wind fields have a strong dependence on local solar time (LT). Tides include westward propagating migrating (sun-synchronous) waves driven in response to solar heating and additional nonmigrating waves resulting from zonal variations in the thermotidal forcing. Zonal modulation of ...
متن کاملAtmospheric tides in a Mars general circulation model with data assimilation
The prominence of thermal tides in the Martian atmosphere has long been recognized, through classical theory, models and observations, including surface pressure records from the Viking and Mars Pathfinder Landers. A unique record of observations over more than two Martian years is now available from the Mars Global Surveyor spacecraft, although since the spacecraft is Sun-synchronous it is dif...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1999
ISSN: 0148-0227,2156-2202
DOI: 10.1029/1999jd900108