期刊名称：Revista Internacional de Contaminación Ambiental
印刷版ISSN：0188-4999
出版年度：1997
卷号：13
期号：1
页码：23-34
语种：Spanish
出版社：Centro de Ciencias de la Atmósfera
摘要：A Diagnostic Atmospheric lower-layer System (SDA) has been elaborated in the Roshydrometcentre (Moscow) for meteorological data supply of pollution transfer modelling with the EMEP program. SDA allows for an operational receipt of dynamical characteristics (pressure, velocity of the wind, temperature on 1000, 925, 850, and 700 mb) and precipitation values in the points of a 150 km grid every 6 hours. The dynamical SDA block is based on quasi-3D objective analysis, utilizing all available WWW observation data. Fields of hydrodynamic spectral forecast model at 0,6,12 and 18 hours are used as first guess. This model has a resolution of 4 levels up to 1.5 km and T40 spherical horizontal truncation. All basic physical processes of the atmosphere, such as a cloud-radiation interaction, PEL parametrization, large-scale and convective precipitation, large-scale and convective clouds and processes on soil are included in the model. The precipitation diagnosis is performed with the average in every EMEP grid point over neighbouring synoptic data in the 150 km radius circle. If no precipitation data are available the forecast of convective and large-scale precipitation by spectral model on 72 hours is used, giving the best precipitation forecast The SDA system has become operational since January 1, 1994 with data storage. An analysis of SDA run results is presented in this report. It is shown that the basic meteorological values arc in satisfying agreement with one another and with empirical data. The wind velocity fields realistically reflect the large scale structure of the atmosphere circulation. The fields of the temperature and precipitation by synoptic analysis demonstrate a satisfactory localization of the main air mass and frontal zones.
其他摘要：A Diagnostic Atmospheric lower-layer System (SDA) has been elaborated in the Roshydrometcentre (Moscow) for meteorological data supply of pollution transfer modelling with the EMEP program. SDA allows for an operational receipt of dynamical characteristics (pressure, velocity of the wind, temperature on 1000, 925, 850, and 700 mb) and precipitation values in the points of a 150 km grid every 6 hours. The dynamical SDA block is based on quasi-3D objective analysis, utilizing all available WWW observation data. Fields of hydrodynamic spectral forecast model at 0,6,12 and 18 hours are used as first guess. This model has a resolution of 4 levels up to 1.5 km and T40 spherical horizontal truncation. All basic physical processes of the atmosphere, such as a cloud-radiation interaction, PEL parametrization, large-scale and convective precipitation, large-scale and convective clouds and processes on soil are included in the model. The precipitation diagnosis is performed with the average in every EMEP grid point over neighbouring synoptic data in the 150 km radius circle. If no precipitation data are available the forecast of convective and large-scale precipitation by spectral model on 72 hours is used, giving the best precipitation forecast The SDA system has become operational since January 1, 1994 with data storage. An analysis of SDA run results is presented in this report. It is shown that the basic meteorological values arc in satisfying agreement with one another and with empirical data. The wind velocity fields realistically reflect the large scale structure of the atmosphere circulation. The fields of the temperature and precipitation by synoptic analysis demonstrate a satisfactory localization of the main air mass and frontal zones.
关键词：EMEP program; pollution transport; quasi 3-D multivanate analysis of meteorological data; precipitation objective diagnosis;EMEP program; pollution transport; quasi 3-D multivanate analysis of meteorological data; precipitation objective diagnosis
其他关键词：EMEP program; pollution transport; quasi 3-D multivanate analysis of meteorological data; precipitation objective diagnosis
