通过对NCEP再分析资料(分辨率1°×1°)、常规高空气象观测资料、MICAPS预报场以及多普勒雷达资料的运用,从动力、不稳定能量条件、雷达回波等方面对2019年6月固原市一次强对流天气过程进行综合分析。结果表明:此次强对流...通过对NCEP再分析资料(分辨率1°×1°)、常规高空气象观测资料、MICAPS预报场以及多普勒雷达资料的运用,从动力、不稳定能量条件、雷达回波等方面对2019年6月固原市一次强对流天气过程进行综合分析。结果表明:此次强对流天气过程以雷雨大风和冰雹为主,降雹类型主要为冷槽型。对流回波强度基本维持在55 d Bz以上,有明显的弓形回波出现,对流单体移速较快,整体条件有利于冰雹大风的出现。展开更多
The agro-meteorological conditions for film mulching planting in autumn in Xiji, Ningxia was studied by using the meteorological data from the national basic stations over the years, including the mulching planting of...The agro-meteorological conditions for film mulching planting in autumn in Xiji, Ningxia was studied by using the meteorological data from the national basic stations over the years, including the mulching planting of corn in autumn in differ- ent stages from 1985 to 1986, the mulching planting in different stages after the appearance of effective precipitation in October, and the wind simulation experimen- tal data of blower. Precipitation suitability analysis model before autumn film mulching and crop growth period was simulated to analyze the effective precipitation weather before mulching planting in autumn, and simulations were also made to temperature suitability analysis model during soil preparation and film mulching peri- ods in autumn, the suitability function of optimal sowing time about the soil moisture dynamic changes in autumn in different times, the best water conservation effect in film mulching period at different time after the appearance of effective precipitation, the wind resistance function of film mulching in autumn. All the simulation work was of high referential value to carry out meteorological service and agricultural weather forecast about film mulching in autumn.展开更多
文摘通过对NCEP再分析资料(分辨率1°×1°)、常规高空气象观测资料、MICAPS预报场以及多普勒雷达资料的运用,从动力、不稳定能量条件、雷达回波等方面对2019年6月固原市一次强对流天气过程进行综合分析。结果表明:此次强对流天气过程以雷雨大风和冰雹为主,降雹类型主要为冷槽型。对流回波强度基本维持在55 d Bz以上,有明显的弓形回波出现,对流单体移速较快,整体条件有利于冰雹大风的出现。
基金Supported by the Program for Scientific Research of Ningxia Meteorological Bureau in 2015~~
文摘The agro-meteorological conditions for film mulching planting in autumn in Xiji, Ningxia was studied by using the meteorological data from the national basic stations over the years, including the mulching planting of corn in autumn in differ- ent stages from 1985 to 1986, the mulching planting in different stages after the appearance of effective precipitation in October, and the wind simulation experimen- tal data of blower. Precipitation suitability analysis model before autumn film mulching and crop growth period was simulated to analyze the effective precipitation weather before mulching planting in autumn, and simulations were also made to temperature suitability analysis model during soil preparation and film mulching peri- ods in autumn, the suitability function of optimal sowing time about the soil moisture dynamic changes in autumn in different times, the best water conservation effect in film mulching period at different time after the appearance of effective precipitation, the wind resistance function of film mulching in autumn. All the simulation work was of high referential value to carry out meteorological service and agricultural weather forecast about film mulching in autumn.