The Madden–Julian oscillation (MJO), also known as the intraseasonal oscillation (ISO), is a planetaryscale mode of variation in the tropical Indian and western Pacific Oceans. Basic questions about the MJO are why it propagates eastward at;5 m s, why it lasts for intraseasonal time scales, and how it interacts with the fine structure that is embedded in it. This study will test the hypothesis ...

A better understanding of multiscale interactions within the Madden–Julian oscillation (MJO), including momentum exchanges, is critical for improved MJO prediction skill. In this study, convective momentum transport (CMT) associatedwith theMJO is analyzed based on theNOAAClimate Forecast SystemReanalysis (CFSR). A three-layer vertical structure associated with the MJO, as previously suggested i...

کچ ی هد پ ی ش مز ی هن ه و فد : ساسا د مردنس رد نامرد ي سفنت سرتس ي ظنت نادازون داح ي سکا لدابت م ي و نژ د ي سکا ي د هدوب نبرک تسا طسوت هک کبس اـه ي ناـمرد ي فلتخم ي هلمجزا لکتورپ INSURE ماجنا م ي دوش ا اذل . ي هعلاطم ن فدهاب اقم ي هس عضو ي ت اه ي ندب ي عضو رب رمد و زاب قاط ي سفنت ت ي هـب لاتـبم سراـن نادازون ردنس د م ي سفنت سرتس ي لکتورپ اب نامرد تحت داح INSURE ماجنا درگ ...

The moisture budget associated with the eastward-propagating Madden–Julian oscillation (MJO) was diagnosed using 1979–2001 40-yr ECMWF Re-Analysis (ERA-40) data. A marked zonal asymmetry of the moisture relative to the MJO convection appears in the planetary boundary layer (PBL, below 700 hPa), creating a potentially more unstable stratification to the east of the MJO convection and favoring th...

صخلملا The aim of this study isto examine whether radiofrequency (RF) used in cellular phone communications at a specific absorption rate (SAR) less than 1.2 w/kg could increase the spontaneous rate of sister chromatid exchanges (SCE) or elicit alterations both in the cell replication index (CRI) and mitotic index (MI) in human peripheral blood lymphocytes. Whole blood samples were obtained fro...

5 This work studies the significance of asymmetry in systems of organized convection asso6 ciated with the Madden-Julian oscillation (MJO). Satellite infrared brightness temperature 7 data for the period 1983–2006 were decomposed into subsets symmetric and antisymmetric 8 about the equator. Using a recent nonlinear objective method called nonlinear Laplacian 9 spectral analysis, modes of variab...

The barrier layer, the layer between the bottom of the density-defined mixed layer and the isothermal layer in the upper ocean, may play a role in air-sea dynamics. In the present study, data from Argo profiling floats in the tropical Indian Ocean and a mooring at 90 E, 0 N are used to examine subseasonal variations in upper ocean salinity and barrier-layer thickness (BLT) during boreal winter....

Broadly speaking, the influence of the MJO on precipitation over the tropics occurs by eastward propagation of Rossby wave trains from the tropical Pacific Ocean (Muza et al. 2009). Previous observational and modeling studies generally indicated that MJO and ENSO has a decadal variation and seasonal dependence (Tang and Yu, 2008; Hendon et al. 2007), however, them has not been well identified d...