Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-16-0505.1 |
Influences of Boreal Summer Intraseasonal Oscillation on Heat Waves in Monsoon Asia | |
Hsu, Pang-Chi1; Lee, June-Yi2,3; Ha, Kyung-Ja2,4; Tsou, Chih-Hua5 | |
2017-09-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; South Korea; Taiwan |
英文摘要 | By analyzing observation-based high-resolution surface air temperature (SAT) data over the Asian monsoon region (here called "monsoon Asia'') for 1981-2007, the modulation by boreal summer intraseasonal oscillation (BSISO) of heat wave (HW) occurrence is examined. Strong SAT variability and a high probability of HW occurrence on intraseasonal time scales are found consistently in the densely populated regions over central India (CI), the YangtzeRiver valley in China (YR), Japan (JP), and theKorean Peninsula (KP). The two distinct BSISO modes (30-60-day BSISO1 and 10-30-day BSISO2) show different contributions to HW occurrence in monsoon Asia. A significant increase in HW occurrence over CI (YR) is observed during phases 2-3 (8-1) of BSISO2 when the 10-30-day anticyclonic and descending anomaly induce enhanced upward thermal heating and sensible heat flux (warm advection) around the areas. On the other hand, the northeastward propagating BSISO1 is closely connected to the increased HW probability over JP and KP. During phases 7-8 of BSISO1, the 30-60-day subsidence along with the low-level anticyclonic anomaly moves into northeastern Asia, leading to enhanced diabatic (adiabatic) warming near surface in JP (KP). Analysis of a three-dimensional streamfunction tendency equation indicates that diabatic cooling induced by the BSISO-related suppressed convections is the main forcing term of anticyclonic anomaly although it is largely offset by the decreased static stability associated with adiabatic warming. The BSISO-related vorticity advection leads to an anticyclonic (cyclonic) tendency to the northwestern (southeastern) part of the center of anticyclonic anomaly, favoring northwestward development of the BSISO anomalous circulations and thus providing a favorable condition for HW occurrence over the western Pacific-East Asia sector. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408613400006 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; GRIDDED PRECIPITATION DATASET ; OUTGOING LONGWAVE RADIATION ; WESTERN NORTH PACIFIC ; NORTHWESTWARD PROPAGATION ; EXTREME PRECIPITATION ; DENSE NETWORK ; RAIN GAUGES ; CLIMATE ; TEMPERATURE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19887 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change, Key Lab Meteorol Disaster,Minist Educ, Nanjing, Jiangsu, Peoples R China; 2.Pusan Natl Univ, Res Ctr Climate Sci, Busan, South Korea; 3.Pusan Natl Univ, IBS Ctr Climate Phys, Busan, South Korea; 4.Pusan Natl Univ, Dept Atmospher Sci, Busan, South Korea; 5.Natl Taiwan Normal Univ, Dept Earth Sci, Taipei, Taiwan |
推荐引用方式 GB/T 7714 | Hsu, Pang-Chi,Lee, June-Yi,Ha, Kyung-Ja,et al. Influences of Boreal Summer Intraseasonal Oscillation on Heat Waves in Monsoon Asia[J]. JOURNAL OF CLIMATE,2017,30(18). |
APA | Hsu, Pang-Chi,Lee, June-Yi,Ha, Kyung-Ja,&Tsou, Chih-Hua.(2017).Influences of Boreal Summer Intraseasonal Oscillation on Heat Waves in Monsoon Asia.JOURNAL OF CLIMATE,30(18). |
MLA | Hsu, Pang-Chi,et al."Influences of Boreal Summer Intraseasonal Oscillation on Heat Waves in Monsoon Asia".JOURNAL OF CLIMATE 30.18(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论