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2 edition of A study of the fluctuations of the wind field over the tropical Indian Ocean found in the catalog.

A study of the fluctuations of the wind field over the tropical Indian Ocean

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Published by Naval Postgraduate School in Monterey, California .
Written in English

  • Meteorology

  • ID Numbers
    Open LibraryOL25334983M

    understanding of the dynamics of ocean-atmosphere interaction with regard to wet and dry summers over southern Africa. Prescribed changes in the SST field and analysis of the circulation and rainfall response patterns were conducted by Jury and Pathack () and Mason et al. (). In the former study, SSTs in the CEI were. In their study, Deen and her colleagues cataloged 11 months of seismometer readings from 57 ocean-bottom sensors spread over 3, square kilometers of the Indian Ocean seafloor, centered around La Réunion Island east of Madagascar. They found several peaks in the data at frequencies between and millihertz.   Minor cooling trends (compared to interannual variability) are observed in the southwestern Indian Ocean and within most of the northern subtropics(10 and 30N) and eastern basins of the Pacific Ocean.” In other words there is enough surface cooling to offset warming fears, but that is ignored in the IUCN paper. Objects and wind moving over distance and time on Earth's surface are A) always deflected from a straight path to the west in the Southern Hemisphere B) affected only by the pressure gradient and friction force. C) always deflected to the right by the friction force.

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A study of the fluctuations of the wind field over the tropical Indian Ocean by Gary Ward Bryant Download PDF EPUB FB2

During dipole mode events, the surface wind field over the tropical Indian Ocean experiences large changes, especially in its zonal (east-to-west) component over the by: A study of the fluctuations of the wind field over A study of the fluctuations of the wind field over the tropical Indian Ocean book tropical Indian Ocean.

By Gary Ward distribution unlimitedUsing radiosonde data from six widely scattered stations in the Indian Ocean, an attempt was made to identify quasi-periodic wind oscillations during the ^ winter monsoon season.

density of available stations and the Author: Gary Ward Bryant. Indian Ocean - Indian Ocean - Trade-winds zone: The second zone, that of the trade winds, lies between 10° and 30° S. There, steady southeasterly trade winds prevail throughout the year and are strongest between June and September.

Cyclones also occur east of Madagascar between December and March. In the northern part of the zone the air temperature averages 77 °F (25 °C) during the.

The origin of this variability is linked to a small patch of wind over the Eastern Indian Ocean, associated with boreal winter Madden–Julian Oscillations (MJO). These large fluctuations are Cited by: 4. An examination of the wind speed anomalies over the western Indian Ocean indicates a relatively weak correlation with the chlorophyll anomalies (Figures 3g and 3h).

Also, the long‐term change over the same region is only about m s −1 (Figure 3 h), which is minor compared to an SST trend of °C during the same period (Figure 3 b).Cited by: Recent studies show that anomalous events evolve in the tropical Indian Ocean as an ocean–atmosphere coupled phenomenon known as the IOD (Saji et al., ; Webster et al., ; Yamagata et al., a, ).The stronger than normal seasonal southeasterly winds along the Sumatra coast during positive IOD events cause SST cooling (Figure ) by coastal upwelling.

Among the sources of ambient noise in the ocean, wind related noise has significant impact on sonar performance. The tropical waters in the Indian Ocean Region (IOR), present random fluctuations in the surface parameters, namely the wind speed, surface temperature, wave height, etc.

resulting in variations in the ambient noise characteristics. This book deals primarily with understanding, monitoring and prediction of Tropical Cyclones (TCs) over the North Indian Ocean (NIO). There is special emphasis on TC genesis, intensification, movement and associated adverse weather like heavy rainfall and gale winds.

A field observational campaign [i.e., the Mirai Indian Ocean cruise for the Study of the MJO-convection Onset (MISMO)] was conducted over the central equatorial Indian Ocean in October–December   However, strong correlations with two measures of AM strength, sea level pressure and vertical wind shear over the Indian Ocean and Bay of Bengal, instead suggest an important influence of upstream rainout on precipitation δ 18 O at TM cave (Yang et al., ).

In this study, we utilize the term “AM intensity” to refer to the degree of. Rainfall during the monsoon season over India has also been linked with SST variability in the Indian Ocean: the Indian Ocean Dipole mode (10, 11) and a more general warming (cooling) of the tropical Indian Ocean during El Niño (La Niña) events through the so-called atmospheric bridge that persists into the following summer (12 –14).

In this study, factors responsible for the deficit Indian Summer Monsoon (ISM) rainfall in and and the ability of Indian Institute of Tropical Meteorology-Global Ocean Data Assimilation. This book deals with recent advances in our understanding and prediction of tropical cyclogenesis, intensification and movement as well as landfall processes like heavy rainfall, gale wind and storm surge based on the latest observational and numerical weather prediction (NWP) modeling platforms.

In the western tropical Pacific Ocean (WTPO), there are four major surface zonal currents ().The North Equatorial Current (NEC) is a broad westward flow between 9° and 18°N, with a mean transport of 42–62 Sv (1 Sv ≡ 10 6 m 3 s −1; Toole et al.

; Qiu and Joyce ; Qiu et al. ).It bifurcates off the Philippine coast into the poleward Kuroshio and the equatorward Mindanao. Climatology (from Greek κλίμα, klima, "place, zone"; and -λογία, -logia) or climate science is the scientific study of climate, scientifically defined as weather conditions averaged over a period of time.

This modern field of study is regarded as a branch of the atmospheric sciences and a subfield of physical geography, which is one of the Earth sciences.

The Tropical Ocean Global Atmosphere (TOGA) program was a year international climate research effort carried out between and under the auspices. The principal feature in the tropical Indian Ocean is a basin‐wide clockwise southern hemisphere (cyclonic) gyre comprised of the South Equatorial Current to the south, the South Equatorial Countercurrent to the north, and the East African Coastal Current in the west.

To reconstruct the still poorly understood thermocline fluctuations in the western tropical Indian Ocean, a sediment core located off Tanzania (GeoB; 04°′S, 39°′E, m. The wind field of a tropical cyclone may be divided into three regions.

First is a ring-shaped outer region, typically having an outer radius of about km ( miles) and an inner radius of about 30 to 50 km (20 to 30 miles). In this region the winds increase uniformly in speed toward the centre.

Knowing the pattern of surface winds on the seas and oceans and how it changes over time is of great importance. In this research, the monthly surface wind fields on the Indian Ocean have been studied and analyzed for a year period (), using NCEP/NCAR data reanalysis.

The results show that transition from cold to warm pattern happens in May and that the summer monsoon pattern. The Indian Ocean has its own seesaw behavior, the Indian Ocean Dipole. During a so-called positive phase, warmer-than-usual water temperatures in the western Indian Ocean bring heavy rains to East Africa and India and colder-than-usual waters bring drought to Southeast Asia.

In the negative phase, ocean and monsoonal conditions reverse. Afshar-Kaveh, N.; Ghaheri, A.; Chegini, V.; Etemad-Shahidi, A., and Nazarali, M., Evaluation of different wind fields for storm surge modeling in the Persian Gulf. With the increasing demand for accurate storm-surge predictions in coastal regions, there is an urgent need to select the most accurate wind field product to use in hydrodynamic prediction models.

In this study, the responses. The post landfall wind speed forecast of tropical cyclones (TC) over Bay of Bengal (BoB) are explained by using an empirical study. The study parameters are obtained from the database of 19 tropical cyclone of The study is based upon the assumption of tropical cyclone wind speed decay after landfall.

A method for correcting the. 17) Idealized pressure belts and wind systems are significantly modified by Earth's tilted axis of rotation and _____.

17) _____ A) differences in the heat capacities of the ocean and land B) differences in the latitudinal albedo C) variations in incoming solar radiation over many years D) latitudinal variations in.

the Indian Ocean east of Madagascar the Arabian Sea the Bay of Bengal the Gulf of Mexico The first sign that a hurricane may be developing over tropical seas is the appearance of. the intertropical convergence zone (ITCZ). they move over colder ocean water. they move over land. The LLJ in the SWM flow is distributed as a strong westerly wind over the Indian Ocean around 0°–20° N at hPa (e.g., Joseph and Simon ).

JJAS precipitation exceeds mm in the southwestern coastal region. The second largest amount of. The Indian Ocean has been warming at a rate faster than thought before ( deg C during the past century). It is also the largest consistent contributor to the global ocean.

Meteorology is the study of the atmosphere, atmospheric phenomena, and atmospheric effects on our atmosphere is the gaseous layer of the physical environment that surrounds a planet. Earth’s atmosphere is roughly to kilometers ( miles) thick.

Gravity keeps the atmosphere from expanding much farther. Meteorology is a subdiscipline of the atmospheric sciences. conducted through the Indian Ocean, and with regard to the extensiveness and special position of the ocean, it is necessary to know the wind patterns.

The wind field and circulation in the Indian Ocean is highly complex. Knowing the [1] Oman Sea’s wind field is of great importance, because of the monsoon in the sea [2] [3] [4].

Huge pollution cloud discovered over Indian Ocean By Perla Astudillo 30 June A recent scientific investigation has identified a huge cloud of atmospheric pollution covering some 10 million. Study 68 Chapter 8 Questions flashcards from Maggie G.

on StudyBlue. The friction of wind blowing from the north along the ocean surface causes the water next. (B) The average density of tropical cyclone wind energy annually dissipated throughout the Caribbean Basin over the period – Countries included in this study are black, and those excluded are blue.

Inclusion is based only on geographical extent and the availability of economic data. This study describes hydrological fluctuations of Lake Abaya-Chamo via direct local measurements in relation to time-integrated climate anomalies. Reconstruction of an index involved compositing lake level and flow discharge station records in the period Satellite and model interpolated rainfall, latent heat flux and run-off anomalies follow the hydrological records when summed over.

by Judith Curry Peter Webster's magnum opus is now published: Dynamics of the Tropical Atmosphere and Oceans. From the blurb on : "This book presents a unique and comprehensive view of the fundamental dynamical and thermodynamic principles underlying the large circulations of the coupled ocean-atmosphere system Dynamics of The Tropical Atmosphere and.

Oceanography is the study of all aspects of the ocean. This scientific field covers a wide range of topics, from marine life and ecosystems, to currents and waves, to the movement of sediments, to seafloor geology.

The study of oceanography is interdisciplinary, requiring an understanding of how the ocean's properties and processes function.

Tropical Cyclone Wind Field Forcing for Surge Models: Critical Issues and Sensitivities V. Cardone and is a database of accurate, over ocean in-situ measurements of the surface wind speed and direction on the most useful averaging frequency fluctuations caused say by temporary.

We develop an experimental daily surface heat flux data set based on satellite observations to study subseasonal variability (periods shorter than 90 days) in the tropical Indian Ocean. We use incoming shortwave and longwave radiation from the International Satellite Cloud Climatology Project, and sea surface temperature (SST) from microwave Title: Researcher • Finnish.

The Equatorial Counter Current is an eastward flowing, wind-driven current which extends to depths of m in the Atlantic, Indian, and Pacific Oceans. More often called the North Equatorial Countercurrent (NECC), this current flows west-to-east at about °N in the Atlantic, Indian Ocean and Pacific basins, between the North Equatorial Current (NEC) and the South Equatorial Current (SEC).

Ocean side on interannual timescales, and by a combination of Indian Ocean and. Pacific Ocean processes on seasonal to annual timescales.

The model throughflow is maximum in boreal summer (11 Sv) and minimum in boreal winter (4 Sv) with a 9-year mean of Sv. These values are within the range of various estimations.

Question: What Is The Surface Wind Direction In The Tropical Pacific Near Hawaii (20 N, W). What Is The Upper Atmosphere Wind Direction In The Tropical Pacific Over Hawaii. What Explains The Difference In Wind Direction Between The Surface And The Upper Atmosphere In The Tropical. Chapter 7:A Study of Indian Wind Energy Potential 62 Chapter 8: Conclusions 73 Wind distribution is more predictable over shorter - time spans like a year, but on shorter time frame like few days the wind energy is difficult to Accumulated field experience (the learning curve effect) improving the capacity factor."Tropical Indian Ocean Surface and Subsurface Temperature Fluctuations in a Climate Change Scenario.

" in Journal of Geology and Geophysics "On the benefits of using high resolution mesoscale model to improve wind field for the study of upwelling off the Indian coasts.

" in International Journal of Digital Earth.NWCBs are also associated with an upper-level trough in the Southern Indian Ocean at 80–°E. This trough is not apparent in the composite of geopotential heights at hPa in Figure 3(c) because of the longwave trough’s differing amplitudes.

The upper-level wind fields at hPa showed a NW airstream over Australia from the NWCB formation region (Figure 3(d)), which was related to the.