The role of soil moisture and surface- and subsurface water flows on predictability of convection (A05)

土壤湿度以及地表和地下水流对对流可预测性的作用（A05）

• 批准号: 280672327
• 金额: --
• 依托单位: Institut für Physik der Atmosphäre
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/280672327?language=en
• 关键词: role; soil; moisture; surface; subsurface

The hypothesis that improvements in convective precipitation predictability can be achieved by a more sophisticated treatment of terrestrial hydrological processes in numerical weather prediction models will be investigated. This method will be compared and combined with a stochastic boundary layer parameterization method to account for land-atmosphere exchange variability originating from surface and subsurface lateral water flows. This will enable the critical atmospheric sensitivities to a physically enhanced representation of soil-moisture processes to be assessed.

将研究这样一种假设，即对流降水可预测性的提高可以通过数值天气预报模式中对陆地水文过程进行更复杂的处理来实现。这种方法将进行比较，并与随机边界层参数化方法相结合，以考虑地面和地下横向水流引起的陆-气交换变化。这将使关键的大气敏感性，以一个物理增强的土壤水分过程的代表性进行评估。