Results 91 to 100 of about 57,002 (295)

Modelling monsoons: understanding and predicting current and future behaviour [PDF]

, 2011
The global monsoon system is so varied and complex that understanding and predicting its diverse behaviour remains a challenge that will occupy modellers for many years to come.
Giannini, Alessandra, Kimoto, Masahide, Mechoso, C. Roberto, Meehl, Gerald, Slingo, Julia Mary, Sperber, Kenneth, Turner, Andrew George   +6 more
core   +1 more source

Tropical Cyclone Rainfall Spatial Asymmetries in the Lesser Antilles

International Journal of Climatology, EarlyView.
Rainfall is not proportional to the Saffir‐Simpson wind‐based categories. Lower category tropical cyclones (TS, H1, H2 and H3) can generate more intense rainfall than H4 and H5. Rainfall is asymmetric; as a tropical cyclone intensifies or weakens, the location of peak rainfall shifts.
Catherine Nabukulu, Janneke Ettema, Bastian van den Bout, Victor. G. Jetten   +3 more
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 ...
openaire   +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
openaire   +1 more source

Spatiotemporal Evolution of Hydroclimatic Variables in the Brazilian Semi‐Arid Region Through the Aridity Index and Susceptibility to Desertification

International Journal of Climatology, EarlyView.
Over the past 60 years, noticeable changes have been observed in the main hydroclimatological variables, driven by both natural and anthropogenic factors. In the context of climate change, such behaviour may adversely affect the state's economic activities, as well as increase the recurrence of extreme events in the region.
Ronaldo Guilherme Santos Lima, Izaias Rodrigues de Souza Neto, André Quintão de Almeida, Vania Elisabete Schneider, Ludmilson Abritta Mendes   +4 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, Sarah C. Jones, Doris Anwender, Janina Badey, Leonhard Scheck   +4 more
doaj   +1 more source

Coupled ocean–atmosphere interactions between the Madden–Julian oscillation and synoptic-scale variability over the warm pool [PDF]

, 2005
A principal component analysis of the combined fields of sea surface temperature (SST) and surface zonal and meridional wind reveals the dominant mode of intraseasonal (30-70-day) co-variability during northern winter in the tropical Eastern Hemisphere ...
Batstone, Crispian P., Matthews, Adrian J., Stevens, David P.   +2 more
core   +1 more source

Characterisation of Drought and Wet Events in the Paraíba do Sul River Basin—Brazil

International Journal of Climatology, EarlyView.
Trend analysis identified statistically significant reductions in precipitation (at the 5% significance level) at specific pluviometric stations in São Paulo and Rio de Janeiro, while other areas, mainly in Minas Gerais, experienced significant increases in annual and seasonal rainfall, particularly during summer and spring. These significant trends at
Gildo Rafael de Almeida Santana, Eliane Barbosa Santos, Maria Gertrudes Alvarez Justi da Silva, Vicente de Paulo Santos de Oliveira, Jader Lugon Junior   +4 more
wiley   +1 more source

Influence of the Madden-Julian Oscillation on upper tropospheric humidity [PDF]

, 2002
Variations of upper tropospheric humidity (UTH) and cold cloud in the tropics reveal coherent changes that propagate eastward from the Indian Ocean into the Pacific. The coherence of UTH is high at periods of 30–90 days along the equator.
Pumphrey, H. C., Read, W. G., Salby, M., Sassi, F.   +3 more
core   +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, Biello, Joseph, Majda, Andrew J.   +2 more
openaire   +2 more sources