Through the investigation and analysis of the operation status and training needs of the agrometeorological observation work of the grass-roots meteorological department,as well as the evaluation of training effects,t...Through the investigation and analysis of the operation status and training needs of the agrometeorological observation work of the grass-roots meteorological department,as well as the evaluation of training effects,the development of a modular curriculum system for agrometeorological observation posts was carried out. Research has shown that the structure and distribution of academic qualifications,age and professional title of the agrometeorological observation personnel currently on the job is basically reasonable,human resources are abundant and the observation work is comprehensive. However,there are problems such as lack of professional knowledge and skills,fewer training opportunities and large training needs. Therefore,the pilot training of agricultural meteorological observation still has room for improvement in terms of training frequency,curriculum arrangement,and quality of remote training.展开更多
The Global and Regional Assimilation and Prediction System (GRAPES), a limited-area regional model, was used to simulate the onset of South China Sea summer monsoon. In view of the relatively insufficient information ...The Global and Regional Assimilation and Prediction System (GRAPES), a limited-area regional model, was used to simulate the onset of South China Sea summer monsoon. In view of the relatively insufficient information about the initial field in simulation predictions, the Advanced Microwave Sounding Unit-B (AMSU-B) data from a NOAA satellite were introduced to improve the initial values. By directly using the 3-dimensional variational data assimilation system of GRAPES, two schemes for assimilation tests were designed. In the design, Test 1 (T1) assimilates both sounding and AMSU-B data, and Test 2 (T2) assimilates only the conventional sounding data, before applying the model in simulation forecasts. Comparative experiments showed that the model was very sensitive to initial fields and successful in reproducing the monsoon onset, allocation of high- and low-level wind fields during the pentad of onset, and the northward advancement of the monsoon and monsoon rain bands. The scheme, however, simulated rainfall and the location of the subtropical high with deviations from observations. The simulated location of the subtropical high was more westward and northward and the simulated rainfall for the South China Sea was larger and covered a broader area.展开更多
Based on temperature,precipitation and sunshine data at Longhui National Station during 1981-2021,temperature at 22 regional stations during 2011-2021,and lily planting information of Longya Lily Base,the feasibility ...Based on temperature,precipitation and sunshine data at Longhui National Station during 1981-2021,temperature at 22 regional stations during 2011-2021,and lily planting information of Longya Lily Base,the feasibility of meteorological conditions for the growth of Lilium brownii var.viridulum was analyzed.The results showed that in general,the climatic conditions in Longhui were suitable for planting L.brownii var.viridulum.Among them,the south hilly area was the most suitable climate area,and the north mountain area was the suitable climate area,and the northwest mountain area was the more suitable climate area.It should sufficiently use the climatic conditions of Longhui,do a good job in meteorological service of L.brownii var.viridulum,and provide favorable meteorological guarantee for farmers,to reduce the impact of adverse meteorological conditions on L.brownii var.viridulum,and improve the economic benefits of lily production.展开更多
文摘Through the investigation and analysis of the operation status and training needs of the agrometeorological observation work of the grass-roots meteorological department,as well as the evaluation of training effects,the development of a modular curriculum system for agrometeorological observation posts was carried out. Research has shown that the structure and distribution of academic qualifications,age and professional title of the agrometeorological observation personnel currently on the job is basically reasonable,human resources are abundant and the observation work is comprehensive. However,there are problems such as lack of professional knowledge and skills,fewer training opportunities and large training needs. Therefore,the pilot training of agricultural meteorological observation still has room for improvement in terms of training frequency,curriculum arrangement,and quality of remote training.
基金National 863 Special Project (2006AA01A123)Research on Interpretation Techniques for High-Resolution Numerical Prediction of Hunan ProvinceResearch on Rainstorm Forecast System with GRAPES and Its Application and Accessment in Hunan and Key Project of Science in Hunan (2008FJ1006)
文摘The Global and Regional Assimilation and Prediction System (GRAPES), a limited-area regional model, was used to simulate the onset of South China Sea summer monsoon. In view of the relatively insufficient information about the initial field in simulation predictions, the Advanced Microwave Sounding Unit-B (AMSU-B) data from a NOAA satellite were introduced to improve the initial values. By directly using the 3-dimensional variational data assimilation system of GRAPES, two schemes for assimilation tests were designed. In the design, Test 1 (T1) assimilates both sounding and AMSU-B data, and Test 2 (T2) assimilates only the conventional sounding data, before applying the model in simulation forecasts. Comparative experiments showed that the model was very sensitive to initial fields and successful in reproducing the monsoon onset, allocation of high- and low-level wind fields during the pentad of onset, and the northward advancement of the monsoon and monsoon rain bands. The scheme, however, simulated rainfall and the location of the subtropical high with deviations from observations. The simulated location of the subtropical high was more westward and northward and the simulated rainfall for the South China Sea was larger and covered a broader area.
文摘Based on temperature,precipitation and sunshine data at Longhui National Station during 1981-2021,temperature at 22 regional stations during 2011-2021,and lily planting information of Longya Lily Base,the feasibility of meteorological conditions for the growth of Lilium brownii var.viridulum was analyzed.The results showed that in general,the climatic conditions in Longhui were suitable for planting L.brownii var.viridulum.Among them,the south hilly area was the most suitable climate area,and the north mountain area was the suitable climate area,and the northwest mountain area was the more suitable climate area.It should sufficiently use the climatic conditions of Longhui,do a good job in meteorological service of L.brownii var.viridulum,and provide favorable meteorological guarantee for farmers,to reduce the impact of adverse meteorological conditions on L.brownii var.viridulum,and improve the economic benefits of lily production.
