Journal of Climate

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The Early 1990s Change in ENSO–PSA–SAM Relationships and Its Impact on Southern Hemisphere Climate
Journal of Climate - Tập 28 Số 23 - Trang 9393-9408 - 2015
Jin‐Yi Yu, Houk Paek, E. S. Saltzman, Tong Lee
Abstract This study uncovers an early 1990s change in the relationships between El Niño–Southern Oscillation (ENSO) and two leading modes of the Southern Hemisphere (SH) atmospheric variability: the southern annular mode (SAM) and the Pacific–South American (PSA) pattern. During austral spring, while the PSA maintained a strong correlation with ENSO ...... hiện toàn bộ
Northern Westerlies during the Last Glacial Maximum: Results from CMIP5 Simulations
Journal of Climate - Tập 31 Số 3 - Trang 1135-1153 - 2018
Na Wang, Dabang Jiang, Xianmei Lang
Abstract Based upon simulations from phase 5 of the Coupled Model Intercomparison Project (CMIP5), the vertical and regional characteristics of the northern westerlies during the Last Glacial Maximum (LGM) are investigated in this study. At the Northern Hemispheric scale, all nine available models simulate a poleward shift of the 200-hPa jet, and eig...... hiện toàn bộ
Global Sea Surface Temperature Forecasts Using an Improved Multimodel Approach
Journal of Climate - Tập 27 Số 10 - Trang 3505-3515 - 2014
Zaved Khan, R. Mehrotra, Ashish Sharma, A. Sankarasubramanian
AbstractWith the availability of hindcasts or real-time forecasts from a number of coupled climate models, multimodel ensemble forecasting systems have gained popularity in recent years. However, many models share similar physics or modeling processes, which may lead to similar (or strongly correlated) forecasts. Assigning equal weights to each model in space and t...... hiện toàn bộ
Global Sea Surface Temperature Forecasts Using a Pairwise Dynamic Combination Approach
Journal of Climate - Tập 24 Số 7 - Trang 1869-1877 - 2011
Shahadat Chowdhury, Ashish Sharma
Abstract This paper dynamically combined three multivariate forecasts where spatially and temporally variant combination weights are estimated using a nearest-neighbor approach. The case study presented combines forecasts from three climate models for the period 1958–2001. The variables of interest here are the monthly global sea surface temperature ...... hiện toàn bộ
The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
Journal of Climate - Tập 26 Số 8 - Trang 2546-2556 - 2013
Carol Anne Clayson, Alec S. Bogdanoff
Abstract Diurnal sea surface warming affects the fluxes of latent heat, sensible heat, and upwelling longwave radiation. Diurnal warming most typically reaches maximum values of 3°C, although very localized events may reach 7°–8°C. An analysis of multiple years of diurnal warming over the global ice-free oceans indicates that heat fluxes determined b...... hiện toàn bộ
The Role of Intraseasonal Variability in the Nature of Asian Monsoon Precipitation
Journal of Climate - Tập 20 Số 17 - Trang 4402-4424 - 2007
Carlos D. Hoyos, P. J. Webster
Abstract The structure of the mean precipitation of the south Asian monsoon is spatially complex. Embedded in a broad precipitation maximum extending eastward from 70°E to the northwest tropical Pacific Ocean are strong local maxima to the west of the Western Ghats mountain range of India, in Cambodia extending into the eastern China Sea, and over th...... hiện toàn bộ
Global Perspective of the Quasi-Biweekly Oscillation*
Journal of Climate - Tập 22 Số 6 - Trang 1340-1359 - 2009
Kazuyoshi Kikuchi, Bin Wang
Abstract The quasi-biweekly oscillation (QBW: here defined as a 12–20-day oscillation) is one of the major systems that affect tropical and subtropical weather and seasonal mean climate. However, knowledge is limited concerning its temporal and spatial structures and dynamics, particularly in a global perspective. To advance understanding of the QBW,...... hiện toàn bộ
The Impact of Tropical Cyclones on Extreme Precipitation over Coastal and Inland Areas of China and Its Association to ENSO
Journal of Climate - Tập 31 Số 5 - Trang 1865-1880 - 2018
Qiang Zhang, Xihui Gu, Jianfeng Li, Peijun Shi, Vijay P. Singh
The coastal part of China and its surrounding regions are dominated by a highly dense population and highly developed economy. Extreme precipitation events (EPEs) cause a lot of damage and hence changes in these events and their causes have been drawing considerable attention. This study investigated EPEs resulting from western North Pacific (WNP) tropical cyclones (TCs) and their potentia...... hiện toàn bộ
Contribution of Tropical Cyclones to Rainfall at the Global Scale
Journal of Climate - Tập 30 Số 1 - Trang 359-372 - 2017
Abdou Khouakhi, Gabriele Villarini, Gabriel A. Vecchi
This study quantifies the relative contribution of tropical cyclones (TCs) to annual, seasonal, and extreme rainfall and examines the connection between El Niño–Southern Oscillation (ENSO) and the occurrence of extreme TC-induced rainfall across the globe. The authors use historical 6-h best-track TC datasets and daily precipitation data from 18 607 global rain gauges with at least 25 com...... hiện toàn bộ
A Simulated Climatology of Asian Dust Aerosol and Its Trans-Pacific Transport. Part I: Mean Climate and Validation
Journal of Climate - Tập 19 Số 1 - Trang 88-103 - 2006
Tianliang Zhao, S. L. Gong, X. Y. Zhang, J. Blanchet, Ian G. McKendry, Zhiyao Zhou
Abstract The Northern Aerosol Regional Climate Model (NARCM) was used to construct a 44-yr climatology of spring Asian dust aerosol emission, column loading, deposition, trans-Pacific transport routes, and budgets during 1960–2003. Comparisons with available ground dust observations and Total Ozone Mapping Spectrometer (TOMS) Aerosol Index (AI) measu...... hiện toàn bộ
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