文章利用NCEP FNL全球再分析资料、日喀则市各气象站逐小时数据、日喀则雷达站资料、FY-2G卫星资料对2023年8月6~7日日喀则市强降水天气进行诊断分析,结果表明:此次强降水天气过程中,高空动量下传作用较为显著,由孟加拉湾输送至我国青...文章利用NCEP FNL全球再分析资料、日喀则市各气象站逐小时数据、日喀则雷达站资料、FY-2G卫星资料对2023年8月6~7日日喀则市强降水天气进行诊断分析,结果表明:此次强降水天气过程中,高空动量下传作用较为显著,由孟加拉湾输送至我国青藏高原地区的暖湿气流与偏北气流交汇,为强降水的发生发展提供了较为有利的天气形势。低空辐合、高空辐散产生的抽吸作用,利于垂直上升运动的加强和维持,为强降水天气的发生发展提供了较为有利的动力条件。本次对流系统在500 hPa高原切变线东侧生成,发展过程中与多个小对流云团接触融合与高原切变线位置重合,随着高原切变线的发展移动而变化。Based on NCEP FNL global reanalysis data, hourly data of meteorological stations in the Shigatse area, data from the Shigatse radar station and FY-2G satellite data, this paper makes a diagnostic analysis of the heavy precipitation weather in the Shigatse area from August 6 to 7, 2023. The results show that during the heavy precipitation weather process, the downward transmission of high-altitude momentum is more significant. The warm and humid airflow from the Bay of Bengal to the Qinghai-Tibet Plateau of China intersects with the northerly airflow, which provides a more favorable weather situation for the occurrence and development of heavy precipitation. The suction effect caused by low-altitude convergence and high-altitude divergence is conducive to the strengthening and maintenance of vertical ascending motion, which provides favorable dynamic conditions for the occurrence and development of heavy precipitation weather. The convective system was formed on the east side of the plateau shear line at 500 hPa. During the development process, it contacted and merged with multiple small convective clouds and coincided with the position of the plateau shear line, which changed with the development and movement of the plateau shear line.展开更多
本文以西藏自治区日喀则市为例,以现状评估为基础,着重分析其在地理区位、战略定位、发展阶段、城镇化方式、生活方式等各方面的特殊性,分析其村庄发展存在的主要问题,并以落实国家战略要求为前提,以问题为导向,提出村庄布局优化策略,...本文以西藏自治区日喀则市为例,以现状评估为基础,着重分析其在地理区位、战略定位、发展阶段、城镇化方式、生活方式等各方面的特殊性,分析其村庄发展存在的主要问题,并以落实国家战略要求为前提,以问题为导向,提出村庄布局优化策略,为边境地区,特别是西南边境地区的村庄布局优化路径提供借鉴意义。This article takes Shigatse City in the Xizang Autonomous Region as an example. Based on the current situation assessment, it focuses on analyzing its particularities in terms of geographical location, strategic positioning, development stage, urbanization mode, lifestyle, etc., and analyzes the main problems in its village development. Based on the premise of implementing national strategic requirements and problem-oriented approach, a village layout optimization strategy is proposed to provide reference for the optimization path of village layout in border areas, especially in the southwest border area.展开更多
文摘文章利用NCEP FNL全球再分析资料、日喀则市各气象站逐小时数据、日喀则雷达站资料、FY-2G卫星资料对2023年8月6~7日日喀则市强降水天气进行诊断分析,结果表明:此次强降水天气过程中,高空动量下传作用较为显著,由孟加拉湾输送至我国青藏高原地区的暖湿气流与偏北气流交汇,为强降水的发生发展提供了较为有利的天气形势。低空辐合、高空辐散产生的抽吸作用,利于垂直上升运动的加强和维持,为强降水天气的发生发展提供了较为有利的动力条件。本次对流系统在500 hPa高原切变线东侧生成,发展过程中与多个小对流云团接触融合与高原切变线位置重合,随着高原切变线的发展移动而变化。Based on NCEP FNL global reanalysis data, hourly data of meteorological stations in the Shigatse area, data from the Shigatse radar station and FY-2G satellite data, this paper makes a diagnostic analysis of the heavy precipitation weather in the Shigatse area from August 6 to 7, 2023. The results show that during the heavy precipitation weather process, the downward transmission of high-altitude momentum is more significant. The warm and humid airflow from the Bay of Bengal to the Qinghai-Tibet Plateau of China intersects with the northerly airflow, which provides a more favorable weather situation for the occurrence and development of heavy precipitation. The suction effect caused by low-altitude convergence and high-altitude divergence is conducive to the strengthening and maintenance of vertical ascending motion, which provides favorable dynamic conditions for the occurrence and development of heavy precipitation weather. The convective system was formed on the east side of the plateau shear line at 500 hPa. During the development process, it contacted and merged with multiple small convective clouds and coincided with the position of the plateau shear line, which changed with the development and movement of the plateau shear line.
文摘本文以西藏自治区日喀则市为例,以现状评估为基础,着重分析其在地理区位、战略定位、发展阶段、城镇化方式、生活方式等各方面的特殊性,分析其村庄发展存在的主要问题,并以落实国家战略要求为前提,以问题为导向,提出村庄布局优化策略,为边境地区,特别是西南边境地区的村庄布局优化路径提供借鉴意义。This article takes Shigatse City in the Xizang Autonomous Region as an example. Based on the current situation assessment, it focuses on analyzing its particularities in terms of geographical location, strategic positioning, development stage, urbanization mode, lifestyle, etc., and analyzes the main problems in its village development. Based on the premise of implementing national strategic requirements and problem-oriented approach, a village layout optimization strategy is proposed to provide reference for the optimization path of village layout in border areas, especially in the southwest border area.
