%0 Journal Article
%T On Efficiency of Retrospective Time Integration Scheme<br>回溯时间积分格式的有效性研究
%A You Xingtian
%A Zhu He
%A Cao Hongxing
%A <br>游性恬
%A 朱禾
%A 曹鸿兴
%J 大气科学
%D 2002
%I 
%X Adopting the barotropical quasi-geostrophic model as a dynamic kernel and taking Rossby-Haurwitz wave as an idealized field, numerical weather forecast experiments were carried out by means of both retrospective time integration scheme and leapfrog one. Results show the former can reduce the forecast error at 10-1-10-2 in comparison with the latter in case of 1h to 24h lead. Moreo- ver, the retrospective scheme is little sensitive to the time-step extending. Therefore, the computational amount for numerical integrations can be saved and valid prediction time can be enlarged when using the retrospective scheme.
%K numerical model
%K time integration scheme
%K self-memory
%K weather forecasting<br>数值模式
%K 时间积分格式
%K 自记忆
%K 天气预报
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=CDE739E38F7F89CE&yid=C3ACC247184A22C1&vid=96C778EE049EE47D&iid=0B39A22176CE99FB&sid=D537C66B6404FE57&eid=01622E3E475F966C&journal_id=1006-9895&journal_name=大气科学&referenced_num=3&reference_num=9