青藏高原地區深對流系統特征分析
DOI:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學基金項目(42075019)、國家重點研發計劃(2018YFC1505702)、第二次青藏高原綜合科學考察研究項目(2019QZKK0102)資助


Characteristics of Deep Convective System over Tibetan Plateau
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    基于2014—2018年3—9月GPM(Global Precipitation Measurement)的數據,對青藏高原地區的深對流系統的時空分布及降水特征進行研究,結果表明:青藏高原主體地區(25°~40°N,70°~105°E)的深對流系統主要集中分布在中部、東部和南部地區,對流強度與東亞季風區其他區域相比較小,而對流強度相對較大的系統則大多分布在高原東部地區。深對流系統主要發生在夏季,7、8月份頻數達到峰值且對流較強,且主要活動區域有先向南、向西擴展再東退的特點。深對流活動主要從午后開始發展,大體呈單峰分布。高原深對流系統產生的降水強度較弱,主要集中在5 mm/h以下,其產生的降水主要來源于回波頂高度較低、面積較小的弱對流活動。

    Abstract:

    Based on the GPM (Global Precipitation Measurement mission) data from March to September in 2014-2018, the temporal and spatial distribution of the deep convective system and precipitation characteristics of the Tibetan Plateau region are studied. The results show that the deep convective systems in the main area of the Tibetan Plateau (25°-40°N, 70°-105°E) were mainly concentrated in the central, eastern and southern regions. The convective intensity was relatively small compared with other regions of the East Asian monsoon region, while the systems with relatively large convective intensity were mostly distributed in the eastern region of the Plateau. The deep convection systems mainly occurred in summer. In July and August, the frequency peaks and the convection were strong. The main activity area had the characteristics of extending southward, westward, and then retreating eastward. The deep convective activities mainly developed in the afternoon and showed a unimodal distribution. The precipitation intensity produced by the deep convective system of the plateau was relatively weak, mainly concentrated below 5 mm/h, and the precipitation produced by it also mainly was induced by weak convective activities with a low echo top height and small area.

    參考文獻
    相似文獻
    引證文獻
引用本文

谷艷茹,范廣洲.青藏高原地區深對流系統特征分析[J].氣象科技,2021,49(3):372~379

復制
分享
文章指標
  • 點擊次數:
  • 下載次數:
  • HTML閱讀次數:
  • 引用次數:
歷史
  • 收稿日期:2020-09-04
  • 定稿日期:2020-10-21
  • 錄用日期:
  • 在線發布日期: 2021-06-23
  • 出版日期: 2021-06-30
您是第位訪問者
技術支持:北京勤云科技發展有限公司
午夜欧美大片免费观看,欧美激情综合五月色丁香,亚洲日本在线视频观看,午夜精品福利在线
>