...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Regional simulation of the low-level monsoon winds over the Gulf of California and southwestern United States
【24h】

Regional simulation of the low-level monsoon winds over the Gulf of California and southwestern United States

机译：加利福尼亚湾和美国西南部的低层季风风的区域模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Using a fine-scale (10-20 km) nested regional modeling system, synoptic variations in climatological summertime low-level wind fields over the Gulf of California and the southwestern United States are described. Under appropriate synoptic conditions, strong surge events can develop. These are characterized by low-level southerly flow over the entire Gulf of California with southerly winds extending into Arizona, California, and southern Nevada. Vertically, these southerly winds are present through the bottom 1-2 km of the atmosphere. Southerly flow is persistent throughout the day with some local diurnal cycling over the foothills of the Sierra Madre Occidental and northwestern Mexico. Under nonsurge conditions the simulated low-level winds have a significantly different geographic structure. Nighttime southerly flow is limited to the northeastern Gulf and small portions of southwestern Arizona. Flow over the central and southern Gulf is northerly with weak, variable winds over the foothills of the Sierra Madre Occidental. During the day, southerly winds are present over the central and northern Gulf of California, extending into southwestern Arizona; however, this southerly wind pattern does not support continuous flow from the mouth of the Gulf into northwestern Mexico. Instead, there is a westerly component associated with predominantly upslope flow over the foothills of the Sierra Madre Occidental and the Sonora Desert. [References: 30]
机译：使用精细规模（10-20 km）的嵌套区域建模系统，描述了加利福尼亚湾和美国西南部夏季气候低空风场的天气变化。在适当的天气条件下，会发生强烈的电涌事件。这些特征是整个加利福尼亚湾的低水平南风，南风向亚利桑那州，加利福尼亚州和内华达州南部延伸。从垂直方向看，这些向南的风通过大气的底部1-2 km出现。一整天持续南下，在西马德雷山脉和墨西哥西北部的山麓上有一些当地的昼夜循环。在非浪涌条件下，模拟的低空风具有明显不同的地理结构。夜间向南的流动仅限于东北海湾和亚利桑那西南部的一小部分。北部中部和南部的气流向北，微弱多变的风在西马德雷山脉的山麓上空。白天，在加利福尼亚湾中部和北部出现南风，一直延伸到亚利桑那西南部。但是，这种南风模式无法支持从海湾口到墨西哥西北部的连续流动。取而代之的是，与西马德雷山脉西部地区和索诺拉沙漠山麓上的主要是上坡流有关的西风分量。 [参考：30]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号