Browsing Centre for Atmospheric and Oceanic Sciences (CAOS) by Title
Now showing items 10-29 of 122
-
An Assessment Of The Simulation Of Monsoon And Inter Tropical Convergence Zone In Coupled Ocean-Atmosphere Models
(2010-10-08)Monsoons and Intertropical Convergence Zones (ITCZ) exhibit variability at various temporal and spatial scales. The temporal scale of variability encompasses scales from the intraseasonal through interannual to interdecadal ... -
Bay of Bengal Circulation Features at Different Spatio-temporal Scales
The Bay of Bengal is a semi-enclosed tropical basin shaped by monsoon winds and massive freshwater input, producing a warm, low salinity, stratified upper ocean with a shallow mixed layer and a thick barrier layer in the ... -
Bay of Bengal Freshwater in the tropical Indian Ocean
The annual total continental runoff into the Bay of Bengal (BoB) is more than half the runoff into the entire tropical Indian Ocean. The net freshwater (FW) content in the Bay of Bengal mixed layer increases from a minimum ... -
Bay of Bengal freshwater in the tropical Indian Ocean
The annual total continental runoff into the Bay of Bengal (BoB) is more than half the runoff into the entire tropical Indian Ocean. The net freshwater (FW) content in the Bay of Bengal mixed layer increases from a minimum ... -
Biennial Oscillation Of Indian Summer Monsoon And Global Surface Climate In The Present Decade
(2010-12-08)The ENSO-monsoon system is known to have a biennial component. Here we show using high resolution satellite data, mainly daily rainfall and sea surface temperature (SST) from the Tropical Rainfall Measuring Mission (TRMM), ... -
Changes In The Duration-Depth Characteristics Of Indian Monsoon Rainfall During 1951-2000
(2010-11-22)Several previous studies have found that various characteristics of the Indian monsoon rainfall have shown secular changes over the past century. In this study, using a gridded (1degree) daily rainfall dataset, we analyse ... -
The Changing Nature Of Rainfall Annual Cycle And The Propagation Characteristics Of The Intraseasonal Oscillations In Flood And Drought Years Of The Indian Monsoon
(2010-08-30)Using a 50-year (1951-2000) gridded (1-degree) daily rainfall data set over the Indian land region, we study two main aspects of the Indian monsoon. The first aspect deals with the changing nature of the rainfall annual ... -
Characteristics of Convective Clouds Over the Indian Monsoon Zone from Weather Radar Data
Deep convective clouds play an important role in global energy balance through vertical transport of water vapor, momentum and energy, altering radiation and also influence hydrological cycle via precipitation. These clouds ... -
Cloud Properties Over SHAR Region Derived From Weather RADAR Data
(2011-01-18)Weather radars are increasingly used for the study of clouds, understanding the precipitation systems and also for forecasting very short range weather (one hour to a few hours). Now, Doppler Weather Radar (DWR) data are ... -
Data Assimilation Experiments Using An Indian Ocean General Circulation Model
(2008-09-09)Today, ocean modeling is fast developing as a versatile tool for the study of earth’s climate, local marine ecosystems and coastal engineering applications. Though the field of ocean modeling began in the early 1950s along ... -
Diagnostic study of the structure of inter tropical convergence zone in an aquaplanet general circulation model
The Intertropical Convergence Zone (ITCZ) is a narrow region of cloudiness and rainfall that has a predominant east–west orientation. In the present study, the response of the ITCZ to latitudinal variation of the sea surface ... -
Dynamics and Stability of Multiple Jets in Geophysical Flows
(2018-04-18)The effect of rotation on the stability of multiple jets in planetary atmospheres is system- atically investigated. Typically in Jovian planetary atmospheres, multiple zonal jets have been observed and their morphology has ... -
Dynamics of river plumes in the Bay of Bengal
The Bay of Bengal (BoB) receives a large amount of freshwater through runoff from sev- eral rivers along its border. This large freshwater gain has severe implications on the dynamics and thermodynamics of the BoB as ... -
Dynamics of Summer Monsoon Current around Sri Lanka
(2018-05-21)Summer monsoon current (SMC) in the north Indian Ocean (NIO) is an open ocean current that flows eastward and enter into Bay of Bengal (BoB) during southwest monsoon (June–September). South of Sri Lanka, the SMC turns ... -
Effect of Rainfall and River Discharge on the North Indian Ocean
In the north Indian Ocean, the Bay of Bengal (BoB or bay) and the Eastern Arabian Sea (EAS) receive a huge amount of rainfall during summer. Several rivers along their boundaries discharge enormous amounts of freshwater ... -
Effects of aerosols and atmospheric boundary layer dynamics on refractive index fluctuations: implications for Free-Space Optical communication
Laser communication through atmospheric channels is an emerging wireless technology, commonly known as Free-Space Optical (FSO) communication. It facilitates unprecedented channel capacity and very large bandwidth, favouring ... -
Effects of Arctic Geoengineering on Precipitation in the Tropical Monsoon Regions
(2018-06-14)Arctic geoengineering wherein sunlight absorption is reduced only in the Arctic has been suggested as a remedial measure to counteract the on-going rapid climate change in the Arctic. Several modelling studies have shown ... -
Efficacy of Solar irradiance, Methane and Black carbon aerosols
In climate science literature, the concept of radiative forcing is used to infer the equilibrium temperature change that would occur as a result of changes in the forcing agents such as greenhouse gases and aerosols. ...