Impact of Convective and Land Surface Parameterization Schemes on the Simulation of Surface Temperature and Precipitation Using RegCM4.7 During Summer Period Over the DPR Korea

IF 1.9 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

pure and applied geophysics Pub Date : 2024-08-13 DOI:10.1007/s00024-024-03490-4

Kum-Ryong Jo, Song-Ryong Kim, Ki-Song Pak, Hyok-Chol Kim, Yong-Sik Ham

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Abstract

This paper has investigated the impact of convective parameterization schemes (CPS) and land surface models (LSM) on the simulation of summer climate over the Democratic People’s Republic of Korea (DPR Korea) using the regional climate model (RegCM 4.7). The sensitivity experiments with two LSMs [Biosphere Atmosphere Transfer Scheme (BATS) and Community Land Model (CLM 3.5)] and four CPSs (Grell, Emanuel, Grell over land and Emanuel over ocean (GL_EO), Emanuel over land and Grell over ocean (EL_GO)) at 30 km horizontal resolution are carried out in summer (from June to August) for 10 years (2001–2010) for this purpose. The simulation results are compared with the available observation data provided from the State Hydro-Meteorological Administration of the DPR Korea (SHMAK). The results show that summer mean circulation patterns (SMCP) and summer averaged surface temperature (SAST) is well captured for most of the simulations, but summer rainfall is not well represented by RegCM 4.7. The performance of the CLM3.5 scheme is better in all the simulations than the BATS scheme. Among the CPSs, the EL_GO scheme shows the smallest biases in the simulation of SAST and summer rainfall. The simulations using EL_GO with CLM3.5 shows the best performance in simulating the SAST and summer rainfall over the study region among the considered CPSs and LSMs. These results will be helpful to improve the prediction of climate change over the DPR Korea.

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对流和陆面参数化方案对使用 RegCM4.7 模拟朝鲜夏季地表温度和降水的影响

本文利用区域气候模式（RegCM 4.7）研究了对流参数化方案（CPS）和陆地表面模式（LSM）对朝鲜民主主义人民共和国（朝鲜）夏季气候模拟的影响。为此，在水平分辨率为 30 千米的 10 年（2001-2010 年）夏季（6 月至 8 月），使用两个 LSM（生物圈大气传输方案（BATS）和社区陆地模式（CLM 3.5））和四个 CPS（Grell、Emanuel、Grell 陆地和 Emanuel 海洋（GL_EO）、Emanuel 陆地和 Grell 海洋（EL_GO））进行了敏感性实验。模拟结果与朝鲜国家水文气象局（SHMAK）提供的现有观测数据进行了比较。结果表明，大多数模拟都很好地捕捉到了夏季平均环流模式（SMCP）和夏季平均地表温度（SAST），但 RegCM 4.7 对夏季降雨的表现不佳。在所有模拟中，CLM3.5 方案的性能均优于 BATS 方案。在 CPS 中，EL_GO 方案在模拟 SAST 和夏季降雨时显示的偏差最小。在所考虑的 CPS 和 LSM 中，使用 EL_GO 与 CLM3.5 进行的模拟在模拟研究区域的 SAST 和夏季降雨方面表现最佳。这些结果将有助于改善对朝鲜气候变化的预测。

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来源期刊

pure and applied geophysics 地学-地球化学与地球物理

CiteScore

4.20

自引率

5.00%

发文量

240

审稿时长

9.8 months

期刊介绍： pure and applied geophysics (pageoph), a continuation of the journal "Geofisica pura e applicata", publishes original scientific contributions in the fields of solid Earth, atmospheric and oceanic sciences. Regular and special issues feature thought-provoking reports on active areas of current research and state-of-the-art surveys. Long running journal, founded in 1939 as Geofisica pura e applicata Publishes peer-reviewed original scientific contributions and state-of-the-art surveys in solid earth and atmospheric sciences Features thought-provoking reports on active areas of current research and is a major source for publications on tsunami research Coverage extends to research topics in oceanic sciences See Instructions for Authors on the right hand side.