2 edition of Detection and dynamics of principal modes of Asian summer monsoon variability found in the catalog.
Detection and dynamics of principal modes of Asian summer monsoon variability
by University of Tokyo, Center for Climate System Research in [Tokyo]
Written in English
|Series||Report -- no. 21., Report (Tōkyō Daigaku. Center for Climate System Research) -- no. 21.|
|Contributions||Tōkyō Daigaku. Center for Climate System Research.|
|The Physical Object|
|Pagination||102 p. :|
|Number of Pages||102|
Keywords: East Asian summer monsoon; re-analysis datasets; precipitation 1. Introduction The East Asian summer monsoon (EASM) is an important part of the global climate system and plays a vital role in the Asian climate. It inﬂuences the livelihood and the socioeconomic status of over a billion residents who live in the EASM dominated region. Abstract. The effects of SST anomalies on the interannual and intraseasonal variability of the Asian summer monsoon have been studied by multivariate statistical analyses of hPa wind and rainfall fields simulated in a set of ensemble integrations of the ECMWF atmospheric GCM, referred to as the PRISM experiments.
Forced and internal modes of variability of the East Asian summer monsoon J. Liu1, B. Wang 2,3, and J. Yang4 1State Key Laboratory of Lake Science and Environment, NIGLAS, Nanjing, , China 2Department of Meteorology and IPRC, University of Hawaii at Manoa, Honolulu, HI , USA. Positive values are found over the East Asian and South Asian summer monsoon areas (EAS, SAS; May, ; Boo et al., ), which is in agreement with scenario simulations (Christensen et al., ). Even if changes are not significant over many of these regions due to the high variability of precipitation, they show a pattern of response to.
The Asian Summer Monsoon: Characteristics, Variability, Teleconnections and Projection focuses on the connections between the Indian Summer and East Asian Summer Monsoons, also including the South China Sea Summer Monsoon. While these systems have profound differences, their interactions have significant impacts on the climatic regimes in the region and throughout the : Paperback. Zonal Flow Variability Linking the ENSO/Monsoon Systems M. Watanabe1, F.-F. Jin2, and M. Kimoto1 1: CCSR, University of Tokyo, 2: Dpt. Meteorology, University of Hawaii Step back to the atmospheric response to El Niño attempt to interpret the zonal flow variability associated with ENSO ENSO influence to the Asian summer monsoon.
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Principal modes of Asian summer monsoon variability are identified. By using vertically integrated moisture flux, principal modes represent better separation than commonly used variables such as rainfall, winds and outgoing longwave radiation. An empirical orthogonal function of vertically integrated moisture flux within the South, Southeast and East Asia during summertime is Author: N.
Yasutomi, M. Kimoto. Principal modes of climatological variation of the Asian summer monsoon are investigated. Data used in this study include the high cloud fraction produced by the International Satellite Cloud Climatology Project and sea level pressure, and and mb geopotential heights from ECMWF analysis for the five summers of – The Asian summer monsoon response to global warming is investigated by a transient green‐house warming integration with the ECHAM4/OPYC3 CGCM.
It is demonstrated that increases of greenhouse gas concentrations intensify the Asian summer monsoon and its by: 1. Introduction. The East Asian Summer Monsoon (hereafter EASM) is a major feature of the June/July/August (JJA) global atmospheric circulation (see Ding and Chan for a review).As noted by Rodwell and Hoskins (), the rainfall associated with the monsoon sustains about half the human population; clearly, understanding the variability of the EASM is a problem of major socio‐economic Cited by: Modes of variability have typically been identified through statistical analysis of observational and model data and are generally described by a characteristic spatial pattern and its associated timeseries (Christensen et al., ).
While these modes of variability are at most quasiperiodic, they are oscillatory in character, and their state Author: Armand Hernández, Celia Martin-Puertas, Paola Moffa-Sánchez, Eduardo Moreno-Chamarro, Pablo Ortega.
To what extent the Asian summer monsoon (ASM) rainfall is predictable has been an important but long-standing issue in climate science. Here we introduce a predictable mode analysis (PMA) method to estimate predictability of the ASM rainfall.
The PMA is an integral approach combining empirical analysis, physical interpretation and retrospective prediction.
The effects of SST anomalies on the interannual and intraseasonal variability of the Asian summer monsoon have been studied by multivariate statistical analyses of hPa wind and rainfall fields simulated in a set of ensemble integrations of the ECMWF atmospheric GCM—Predictability Experiments for the Indian Summer Monsoon (PRISM) experiments.
The Late Pliocene is thought to be characterized by the simultaneous intensification of both the East Asian winter monsoon (EAWM) and East Asian summer monsoon (EASM). However, the evolution of the EASM during the Pliocene remains still controversial and only little is known about the dynamics of the EASM during the Pliocene on orbital time scales.
The South Asian summer monsoon (SASM) displays variability on time scales from intraseasonal, through interannual, to decadal and beyond (e.g., Webster et al.
; Gadgil ; Turner and Annamalai ; Schneider et al. ).The standard deviation of interannual variability of SASM rainfall amounts to approximately 10% of the long-term mean summer rainfall (Gadgil ). This is a comprehensive interdisciplinary text book summarizing new knowledge of Asian monsoon climate variability, dynamics, modeling, and prediction from intraseasonal to geological time scales.
The East Asian summer monsoon (EASM) is a key component of the Asian Monsoon system affecting regional precipitation in East Asia and thus human culture, society, and development. Despite this, decadal‐ to centennial‐scale EASM dynamics remain poorly understood over the last millennium.
We study the two primary modes of variability associated with the East Asian summer monsoon, as identified using a multivariate Empirical Orthogonal Function (EOF) analysis.
The second mode is shown to be related to changes in intensity of the South Asian High at hPa while, consistent with previous work, the first mode is associated with an index for the shear vorticity of the hPa zonal.
Monsoon Dynamics, J. Lighthill and R. Principal modes of ra infall-SST variability of the model outputs of the South and East Asian summer monsoon variability and their tele-connections. Lau K-M, Wu HT () Principal modes of rainfall–SST variability of the Asian summer monsoon: a reassessment of the monsoon–ENSO relationship.
J Clim – CrossRef Google Scholar Lau K-M, Yang S () The Asian monsoon and predictability of the tropical ocean-atmosphere system. The Asian summer monsoon dynamics at the orbital scale are a subject of considerable debate. The validity of Asian speleothem δ18O records as a proxy for summer monsoon intensity is questioned.
Edited the book “The Asian Monsoon”Springer/Praxis Publishing Co., J. Yang, T.-J. Zhou, and Z. Wu, Distinct principal modes of early and late summer rainfall anomalies in East Asia.
B., J. Yang, T. Zhou, and B. Wang, Interdecadal changes in the major modes of Asian-Australian monsoon variability: Strengthening. The positive spring SAM not only tends to decrease the dust weather frequency over northern China and increase the summer surface air temperature over northeast China, but is also significantly linked to the weak East Asian monsoon [3,4,5], South China Sea monsoon, Indian monsoon, North American summer monsoon, and West African summer monsoon.
The Variability of the Asian Summer Monsoon Yihui DING National Climate Center, China Meteorological Administration, Beijing, P.R. China Mode (IODM) and teleconnection patterns for interannual variability and the year oscillation for the cesses and dynamics of the Asian monsoon, including dynamics of tropical waves, coupled.
Defining the intensity of the East Asian summer monsoon (EASM) has been extremely controversial. This paper elaborates on the meanings of 25 existing EASM indices in terms of two observed major modes of interannual variation in the precipitation and circulation anomalies for the – period.
The northern and southern modes of East Asian winter monsoon and their relationships with El Niño-Southern Oscillation Xiong Chen, Chongyin Li, Xin Li and Mingyang Liu 20 August | International Journal of Climatology, Vol. 38, No. examined the intraseasonal variability of the Asian summer monsoon (ASM) in atmospheric general circulation models (AGCMs).
They found that many models are able to simulate the dominant dynamical pattern of sub-seasonal variability, but have difﬁculty in simulating the precipitation patterns and higher-order modes of sub-seasonal variability.
Variability of Indian Summer Monsoon. The dominant variability of XBL δ 18 O c aligns well with Northern Hemisphere summer (June–August) insolation (NHSI) variation on a ∼kyr cycle associated with precession of the Earth’s orbit.
Low δ 18 O c values, heavier precipitation, or stronger ISM B are associated with higher NHSI, and vice versa.
The record is also punctuated by many.Using NASA MERRA2 daily data, we investigated the origin, maintenance and variability of the Asian Tropopause Aerosol Layer (ATAL) in relation to variations of the Asia Monsoon Anticyclone (AMA.