Results 41 to 50 of about 2,670 (210)

Initiation of Boreal Summer Intraseasonal Oscillation: Dynamic Contribution by Potential Vorticity

Monthly Weather Review, 2012
Abstract Potential vorticity (PV) thinking conceptually connects the upper-level (upper troposphere in the extratropics and middle troposphere for the tropics) dynamical process to the lower-level process. Here, the initiation mechanism of the boreal summer intraseasonal oscillation (BSISO) in the tropics is investigated using PV ...
Eun-Ji Song, Kyong-Hwan Seo
openaire   +1 more source

Mechanism for northward propagation of boreal summer intraseasonal oscillation: Convective momentum transport [PDF]

Geophysical Research Letters, 2010
This study demonstrates that the momentum transport by cumulus convection plays a significant role in the organization and northward propagation of intraseasonal (ISO) convection anomalies over the Indian and western Pacific regions during boreal summer.
In‐Sik Kang, Daehyun Kim, Jong‐Seong Kug   +2 more
openaire   +1 more source

Intraseasonal rainfall variability in the Bay of Bengal during the Summer Monsoon: coupling with the ocean and modulation by the Indian Ocean Dipole [PDF]

, 2017
The Indian Summer Monsoon rainfall exhibits pronounced intraseasonal variability in the Bay of Bengal (BoB). This study examines the intraseasonal rainfall variability with foci on the coupling with sea surface temperatures (SST) and its interannual ...
Jongaramrungruang, Siraput, Seo, Hyodae, Ummenhofer, Caroline C.   +2 more
core   +3 more sources

Closing the sea surface mixed layer temperature budget from in situ observations alone: Operation Advection during BoBBLE [PDF]

, 2020
Sea surface temperature (SST) is a fundamental driver of tropical weather systems such as monsoon rainfall and tropical cyclones. However, understanding of the factors that control SST variability is lacking, especially during the monsoons when in situ ...
A Okubo, AB Kara, AE Gill, AJ Matthews, B Bourlès, BGM Webber, BN Goswami, D Shankar, DV Hansen, E Roget, GA Meehl, JV George, M Feng, MA Cane, MJ McPhaden, MJ McPhaden, MJ McPhaden, MJ McPhaden, NE Graham, NH Saji, PN Vinayachandran, PV Joseph, RC Levine, RL Sriver, S Gadgil, S Gadgil, S-B Kim, TR Knutson, Y Li   +28 more
core   +1 more source

Sub-seasonal to seasonal drivers of dry extreme rainfall events over Northeast Thailand

Frontiers in Climate, 2023
The interannual El Niño-Southern Oscillation (ENSO) and the Boreal Summer Intraseasonal Oscillation (BSISO) strongly modulate sub-seasonal to seasonal rainfall variability, leading to dry extreme rainfall events (DEREs) over Northeast (NE) Thailand.
Abayomi A. Abatan, Matthew Collins, Mukand S. Babel, Dibesh Khadka, Yenushi K. De Silva   +4 more
doaj   +1 more source

Is there regime behavior in monsoon convection in the late 20th century? [PDF]

, 2010
Mixture model techniques are applied to a daily index of monsoon convection from ERA‐40 reanalysis to show regime behavior. The result is the existence of two significant regimes showing preferred locations of convection within the Asia/Western‐North ...
A. G. Turner, A. Hannachi, Anderson, Charney, Goswami, Hannachi, Hannachi, Hannachi, Krishnamurthy, Krishnamurthy, Krishnan, Molteni, Palmer, Rajeevan, Rajeevan, Sperber, Sperber, Straus, Turner, Uppala, Wang, Webster, Woollings   +22 more
core   +1 more source

Influence of the Qinghai-Xizang Plateau Spring Snow Cover Variation on the Boreal Summer Intraseasonal Oscillation

Gaoyuan qixiang, 2022
Snow cover over the Qinghai-Xizang Plateau （QXP） is an important physical factor that affects the Asian monsoon system through atmospheric circulation.The boreal summer intraseasonal oscillation （BSISO， including a 30~60-day BSISO mode named BSISO1 and a
Yanchao CAO, Xiaochun WANG
doaj   +1 more source

Ocean Rossby waves as a triggering mechanism for primary Madden-Julian events [PDF]

, 2012
The Madden–Julian Oscillation (MJO) is sporadic, with episodes of cyclical activity interspersed with inactive periods. However, it remains unclear what may trigger a Madden–Julian (MJ) event which is not immediately preceded by any MJO activity: a ...
Battisti, Chelton, Chelton, Donald, Ducet, Flatau, Fu, Fu, Fu, Giese, Han, Han, Harrison, Heimbach, Hendon, Hendon, Inness, Izumo, Jones, Kessler, Kessler, Klingaman, Lau, Le Traon, Liebmann, Madden, Madden, Marshall, Marshall, Matthews, Matthews, Matthews, Matthews, Matthews, Matthews, McCreary, McPhaden, Oliver, Rashid, Reynolds, Salby, Shinoda, Webber, Wheeler, Woolnough, Woolnough, Wunsch, Xie, Zhang   +48 more
core   +1 more source

Intraseasonal variation of the East Asian summer monsoon associated with the MJO [PDF]

, 2018
We investigate the daily variability of the East Asian summer monsoon (EASM) by projecting daily wind anomaly data onto the two major modes of an interannual multivariate Empirical Orthogonal Functions analysis.
Chen, Chen, Dee, Ding, Ding, Ding, Gollan, Greatbatch, Kang, Kikuchi, Kiladis, Lin, Madden, Moon, Nitta, North, Sun, Teng, Wang, Wheeler, Wu, Xie, Yasunari, Zhang   +23 more
core   +1 more source

Phase locking of the Boreal Summer Intraseasonal Oscillation in the Indian Ocean

, 2023
The Boreal Summer Intraseasonal Oscillation (BSISO), which is characterized by a northeastward move of convective systems at a 30- to 60-day cycle, is the dominant intraseasonal variability in the Indo-Pacific warm pool region during boreal summer. Previous studies have discussed a phase-locking feature of the BSISO with respect to the annual cycle and
Sakamoto, T., Ukita, J., Honda, M.
openaire   +2 more sources