@Article{DasariLaViRaPaHo:2018:ENInIn,
author = "Dasari, Hari Prasad and Langodan, Sabique and Viswanadhapalli,
Yesubabu and Rao, Vadlamudi Brahmananda and Papadopoulos, Vassilis
P. and Hoteit, Ibrahim",
affiliation = "{King Abdullah University of Science and Technology (KAUST)} and
{King Abdullah University of Science and Technology (KAUST)} and
Weather and Climate Research Group, National Atmospheric Research
Laboratory and {Instituto Nacional de Pesquisas Espaciais (INPE)}
and {Hellenic Centre for Marine Research} and {King Abdullah
University of Science and Technology (KAUST)}",
title = "ENSO influence on the interannual variability of the Red Sea
convergence zone and associated rainfall",
journal = "International Journal of Climatology",
year = "2018",
volume = "38",
number = "2",
pages = "761--775",
keywords = "Red Sea convergence zone, Red Sea trough, ENSO, rainfall, moisture
convergence.",
abstract = ": The Red Sea convergence zone (RSCZ) is formed by opposite
surface winds blowing from northwest to southeast directions at
around 18\∘ 19\∘N between October and January. A
reverse-oriented, low-level monsoon trough at 850 hPa, known as
the Red Sea trough (RST), transfers moisture from the southern Red
Sea to RSCZ. The positions of the RSCZ and RST and the intensity
of the RST have been identified as important factors in modulating
weather and climatic conditions across the Middle East. Here, we
investigate the influence of the El Niņo southern oscillation
(ENSO) on the interannual variability of RSCZ, RST, and regional
rainfall during winter months. Our results indicate that El Niņo
(warm ENSO phase) favours a shift of the RSCZ to the north and a
strengthening of the RST in the same direction. Conversely, during
November and December of La Niņa periods (cold ENSO phase), the
RSCZ shift to the south and the RST strengthens in the same
direction. During El Niņo periods, southeasterly wind speeds
increase (2030%) over the southern Red Sea and northwesterly wind
speeds decrease (1015%) over the northern Red Sea. Noticeable
increases in the number of rainy days and the intensity of rain
events are observed during El Niņo phases. These increases are
associated with colder than normal air intrusion at lower levels
from the north combined with warm air intrusion from the south
over the RSCZ. Our analysis suggests that during El Niņo winters,
warmer sea surface temperatures and higher convective instability
over the Red Sea favour local storms conditions and increase
rainfall over the Red Sea and adjoining regions.",
doi = "10.1002/joc.5208",
url = "http://dx.doi.org/10.1002/joc.5208",
issn = "0899-8418",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "dasari_enso.compressed.pdf",
urlaccessdate = "27 abr. 2024"
}