Results 61 to 70 of about 5,019 (261)
International Journal of Climatology, EarlyView.We studied rainfall variability and cyclicity in six Homogeneous Regions of Rainfall Anomalies (HRRA) in Southeast South America (SESA) from 1961 to 2020 to understand the occurrence of droughts and above‐average rainfall. We use a continental analysis scale, focusing on seasonal, interannual, and interdecadal cycles, and their association with modes ...
Tainã Costa Peres +4 more
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Simulation of the diurnal variation of the tropical convection
Acta Physica Sinica, 2009 The diurnal variation of the tropical convection is investigated using hourly outputs from a two-dimensional cloud-resolving model simulation. The features of cloud microphysics in tropical convections are proposed by the contrastive analysis of the simulation. The model is forced by the observational data obtained from tropical ocean global atmosphere
null Ping Fan, null Luo Zhe-Xian
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The Impacts of Southwest Indian Ocean Tropical Cyclones on Transient Weather in Réunion
International Journal of Climatology, EarlyView.Tropical cyclones which make passage near Réunion can have significant impacts on transient weather relative to long‐term means on the island. In this paper, these impacts were determined by a topological analysis of non‐landfalling tropical cyclones. The relationship between storm intensity, distance, duration, and seasonality plays an equal role in ...
Alexi M. Marinaki, Jennifer M. Fitchett
wiley +1 more source
Dynamical theories of tropical convection
Australian Meteorological Magazine, 1989 Recent observations show that, in contrast to the middle-latitude atmosphere, the tropical atmosphere is very nearly neutral to reversible parcel ascent from the sub-cloud layer. This realisation, together with the failure of classical convection theory and Conditional Instability of the Second Kind (CISK) to explain many observed features of tropical ...
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Observed Linkages Between Marine Heatwaves and Extreme Weather Over Land: A New Zealand Case Study
International Journal of Climatology, EarlyView.Marine heatwaves consistently warm New Zealand's land surface, but rainfall impacts occur only when synoptic systems enable moisture transport. This 38‐year analysis shows MHWs act as thermodynamic background drivers of heat and conditional amplifiers of extreme rainfall events or droughts.
Matthew Chinappa +3 more
wiley +1 more source
Mesoscale cyclogenesis over the western north Pacific Ocean during TPARC [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2013 Three cases of mesoscale marine cyclogenesis over the subtropics of the Western Pacific Ocean are investigated. Each case occurred during the THORPEX Pacific Asia Regional Campaign and Tropical Cyclone Structure (TCS-08) field phases in 2008.
Christopher A. Davis +4 more
doaj +1 more source
On the Separation of Tropical Convective and Stratiform Rains
Journal of Applied Meteorology, 2002 Abstract This work resolves an apparent conflict between the results of Yuter and Houze and Atlas et al. concerning relations between radar reflectivity factor Z and rainfall rate R derived from essentially the same drop size data observed aloft during the Tropical Ocean and Global Atmosphere program's (TOGA) Coupled Ocean–Atmosphere Response ...
Carlton W. Ulbrich, David Atlas
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Subseasonal Predictability of Weekly Rainfall and Rainy Season Onset Over East Africa
International Journal of Climatology, EarlyView.This study evaluates the subseasonal predictability of weekly rainfall and rainy season onset over East Africa using the ECMWF extended range forecast model. Results show strong skill in forecasting weekly rainfall up to 4 weeks ahead, with higher accuracy during the March–May ‘long rains’ season.
Emmah Mwangi +3 more
wiley +1 more source
A stochastic multicloud model for tropical convection [PDF]
Communications in Mathematical Sciences, 2010 A stochastic model for representing the missing variability in global climate models due to unresolved features of organized tropical convection is presented here. We use a Markov chain lattice model to represent small scale convective elements which interact with each other and with the large scale environmental variables through convective available ...
Khouider, Boualem +2 more
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Permafrost and Periglacial Processes, EarlyView.ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca +6 more
wiley +1 more source