Statistical Correction of the SL-AV Model Long-term Forecasts of Surface Air Temperature for the Territory of Northern Eurasia

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
R. M. Vil’fand, S. V. Emelina, V. A. Tischenko, M. A. Tolstykh, V. M. Khan
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引用次数: 0

Abstract

For the territory of Northern Eurasia, a scheme for the statistical correction of surface air temperature forecasts has been developed for periods of 1–4 months on the basis of the SL-AV model using the MOS concept. For statistical correction of operational temperature forecasts, the regression parameters and EOF expansion coefficients obtained by cross-validation on historical forecasts were used. Due to the internal relationships of the model output data, the proposed scheme allows improving the skill of surface characteristic forecasts. A significant improvement in the skill of deterministic air temperature forecasts by using statistical correction is manifested in transition seasons. The scheme of statistical correction is constantly evolving. Further development of the statistical correction technology involves the use of neural networks and forecast indices of atmospheric circulation.

Abstract Image

SL-AV 模型对欧亚大陆北部地区地表气温长期预测的统计修正
摘要 在欧亚北部地区,以 SL-AV 模式为基础,利用 MOS 概念,制定了 1-4 个月期间地表气温预报的统计校正方案。为了对业务气温预报进行统计校正,使用了通过对历史预报进行交叉验证获得的回归参数和 EOF 扩展系数。由于模式输出数据的内部关系,所提出的方案可以提高地表特征预报的技能。在过渡季节,通过使用统计校正,确定性气温预报的技能得到了明显改善。统计校正方案在不断发展。统计校正技术的进一步发展涉及到神经网络和大气环流预报指数的使用。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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