CAJ | 학술논문

　　引入一种新的参考大气方案，对AREM模式动力框架进行静力扣除修改，并选取暴雨个例进行后报模拟试验，考察模式改进后对暴雨过程的预报效果。试验结果表明：新静力扣除方案对模式预报强降水有较好改进，其主要表现在暴雨、大暴雨范围和强度及其中心位置预报上；新方案也提高了模式对气象要素场的预报准确度，特别是对流层中下层及下平流层的温度和纬向风预报，较模式修改前有了较明显的改进。汛期批量试验进一步证实了以上结果，该新静力扣除方案合理有效。
　　인입일충신적삼고대기방안，대AREM모식동력광가진행정력구제수개，병선취폭우개례진행후보모의시험，고찰모식개진후대폭우과정적예보효과。시험결과표명：신정력구제방안대모식예보강강수유교호개진，기주요표현재폭우、대폭우범위화강도급기중심위치예보상；신방안야제고료모식대기상요소장적예보준학도，특별시대류층중하층급하평류층적온도화위향풍예보，교모식수개전유료교명현적개진。신기비량시험진일보증실료이상결과，해신정력구제방안합리유효。
A new scheme of reference atmosphere is introduced to modify the hydrostatic extraction of AREM dynamic framework in this pa-per. A representative storm case is selected to make post-prediction simulation experimentation to validate the effects of the modified model. The results show that this new extraction does better for strong precipitation prediction. There are good impacts on the range, intensity and central location of rainstorms and severe ones. The new extraction improves AREM’s forecast exactitude of meteorological factor fields, espe-cially the prediction of temperature and zonal wind in the middle and low troposphere and low stratosphere has been more remarkably im-proved comparing with the non-revised model. A lot of simulations in flood season validate the results mentioned above. The new hydrostatic extraction is reasonable and effectual.