نتایج جستجو برای: indian ocean

تعداد نتایج: 126914  

2008
J. Brown C. A. Clayson L. Kantha

1 Geophysical Fluid Dynamics Institute, Florida State University, Tallahassee, Florida, USA 2 Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado, USA 3 Department of Mathematics, Burapha University, Thailand Received: 26 March 2008 – Accepted: 8 April 2008 – Published: 9 June 2008 Correspondence to: J. Brown ([email protected]) Published by Copernicus Publ...

Journal: :Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 2014
H Noël C Rizzo

After a decade of outbreaks in Africa, the Indian Ocean and Asia, chikungunya virus (CHIKV) is stepping out of the shadow of dengue virus [1]. Although these two mosquito-borne viruses share clinical characteristics and their main vectors, Aedes albopictus (the tiger mosquito) and Ae. aegypti, CHIKV has long remained exotic to the western hemisphere [2]. The emergence of the Indian Ocean lineag...

Journal: :Science 2001
J Lelieveld P J Crutzen V Ramanathan M O Andreae C M Brenninkmeijer T Campos G R Cass R R Dickerson H Fischer J A de Gouw A Hansel A Jefferson D Kley A T de Laat S Lal M G Lawrence J M Lobert O L Mayol-Bracero A P Mitra T Novakov S J Oltmans K A Prather T Reiner H Rodhe H A Scheeren D Sikka J Williams

The Indian Ocean Experiment (INDOEX) was an international, multiplatform field campaign to measure long-range transport of air pollution from South and Southeast Asia toward the Indian Ocean during the dry monsoon season in January to March 1999. Surprisingly high pollution levels were observed over the entire northern Indian Ocean toward the Intertropical Convergence Zone at about 6 degrees S....

2015
Hiroaki Ueda Youichi Kamae Masamitsu Hayasaki Akio Kitoh Shigeru Watanabe Yurisa Miki Atsuki Kumai

Recent research indicates that the cooling trend in the tropical Pacific Ocean over the past 15 years underlies the contemporaneous hiatus in global mean temperature increase. During the hiatus, the tropical Pacific Ocean displays a La Niña-like cooling pattern while sea surface temperature (SST) in the Indian Ocean has continued to increase. This SST pattern differs from the well-known La Niña...

2007
S. K. Behera

The southeastern tropical Indian Ocean (SETIO) was characterized by unusually cold sea surface temperature (SST) and strong northwestward alongshore surface winds during 1994. Using multi-source data sets including ocean model simulation, two key processes are identified for the SETIO cooling. Entrainment cooling produced most of the negative SST anomaly near the coast whereas evaporative cooli...

2001
Debasis Sengupta Retish Senan B. N. Goswami

Observed upper ocean currents south of Sri Lanka exhibit large, irregular fluctuations with periods of days to weeks. An ocean model driven by daily surface winds is able to reproduce the observed fluctuations. We find from model experiments that low frequency (30-50 day) intraseasonal variability (ISV) arises when Rossby waves radiated from the eastern boundary are amplified by hydrodynamic in...

2011
Sang‐Ki Lee Wonsun Park Erik van Sebille Molly O. Baringer Chunzai Wang David B. Enfield Stephen G. Yeager Ben P. Kirtman

[1] As the upper layer of the world ocean warms gradually during the 20th century, the inter‐ocean heat transport from the Indian to Atlantic basin should be enhanced, and the Atlantic Ocean should therefore gain extra heat due to the increased upper ocean temperature of the inflow via the Agulhas leakage. Consistent with this hypothesis, instrumental records indicate that the Atlantic Ocean ha...

2001
Kevin Vranes Arnold L. Gordon Amy Ffield

The Indonesian Throughflow (ITF) is considered central to the heat budgets of the Pacific and Indian Oceans. Temperature and ocean current time series obtained within the Makassar Strait from December 1996 to early July 1998 are used to calculate heat transport of the ITF and assess its influence on Indian Ocean heat divergence. Velocity and temperature values for the surface layer that were no...

2010
Soo‐Hyun Yoo John Fasullo Song Yang Chang‐Hoi Ho

[1] The relationship between Indian Ocean sea surface temperature and the transition of El Niño events into either La Niña or El Niño–Southern Oscillation neutral conditions is examined in both observations and the retrospective ensemble hindcasts of the National Center for Environmental Prediction Climate Forecast System. The southern Indian Ocean is shown to demonstrate a particularly robust ...

Mohammad Mehdi Mehdizadeh , Mohammad Reza Bannazadeh, Mojgan Ghazi Mirsaeid,

In recent years, the Indian Ocean (IO) has been discovered to have a much larger impact on climate variability than previously thought. This paper reviews processes in which the IO is, or appears to be, actively involved. We begin the mathematical model with a pattern for summer monsoon winds. Three dimensional temperature and velocity fields are calculated analytically for the ocean forced by ...

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