Find out the list of ocean currents of the world which will be helpful for the aspirants of the competitive exams like upscpcsssccds etc. For all geography study material pdf click here for all subject study materials click here. Ocean currents types, circulation patterns, theories. Underwater turbines large propellers tethered to the seabed are used to. From june to september, the northequatorial current is replaced by an easterly movement. These waters are occupied at the upper 400m of an ocean or the ekman layer. A new study suggests a link between atlantic meridional overturning circulation amoc and the indian ocean. There are two type of ocean currents, based on depth, viz. The indian ocean is surrounded by huge landmass of eurasia in the north and is only half the ocean. Ocean currents, waves and upwelling geography, upsc. Practicing all oceanography basics mcq questions and answers in online helps you to improve your ability to attend the real time ssc entrance exams. Typically the lowest salinities are found where rainfall is heavy and near the.
Antilles, is diverted northwards and flows to the east of west indies island and helps in the formation of sargasso sea which is between n. The general circulation of the oceans consists primarily of winddriven ocean currents. Ocean currents in indian ocean ias preparation online. It is a significant ocean current in the pacific, atlantic and the indian ocean that flows from east to west. Complete 30 days study plan to crack prelims with high scores.
It is one of the five main currents which provides a major outflow of cold arctic waters into the atlantic ocean norwegian current flows northeasterly along the atlantic coast of norway. Waves are formed due to friction between wind and surface water layer. Best 600 indian geography pdf mcq for ssc upsc ias nda etc. Horizontal currents arise mainly due to friction between wind and water. Ocean currents more emphasis should be given factors influencing the movement of the ocean currents planetary winds, temperatures, salinity, earths rotation, land mass. C8ocean currents upsc iasgulf strem,north atlantic drift,bengula,kuroshio, oyashio. A general idea about configuration of ocean floor continental shelf, slope, rise, abyssal plan, trenches. Upsc ias prelims syllabus 2020 download pdf for cse exam. Also, monsoon winds in northern indian ocean are peculiar to the region, which directly influence the ocean surface water movement. These, however, are superimposed on the much more sluggish circulation driven by horizontal differences in temperature and salinitynamely, thermohaline.
A brief treatment of thermohaline circulation follows. Ocean current, stream made up of horizontal and vertical components of the circulation system of ocean waters that is produced by gravity, wind friction, and water density variation in different parts of the ocean. Contentsnorth equatorial current warmsouth equatorial current warmcounter equatorial current warmkuroshio sy. We have shown the major current systems in the three oceans atlantic ocean, indian ocean. Indian ocean currents indian ocean is half an ocean, hence the behavior of the north indian ocean currents is different from that of atlantic ocean currents or the pacific ocean currents. Indian ocean currents effect of monsoons on north indian ocean currents.
World water day march 22 the movements that occur in oceans are categorized as. In cold regions, such as the north atlantic ocean, ocean water loses heat to the atmosphere and becomes cold and dense. The ocean currents contribute to the salinity variations. East greenland current originates in the arctic ocean and brings cold, low salinity, water along the east coast of greenland. Surface currents are mostly caused by the w ind because it creates friction as it moves over the water. Important ocean currents notes for upsc geography section. The current systems of the indian ocean are largely controlled and modified by landmasses and monsoon winds.
There is a common upsc syllabus pattern for services such as the indian administrative service, indian foreign service, indian police service, indian revenue service customs and central excise to name a few. Ocean currents, waves and upwelling geography, upsc mains. Water moves ahead from one place to another through ocean currents while the water in the waves does not move, but the wave trains. Earths rotation results in the coriolis effect which also influences ocean currents. Upsc mains geography optional syllabus is available for download as pdf.
A new study suggests a link between atlantic meridional overturning circulation amoc and the indian ocean for thousands of years, atlantic meridional overturning circulation amoc has remained stable but in the last 15 years, signs show that amoc may be slowing, which could have drastic consequences on the global climate however, the rising temperatures in the indian ocean can help to. The lesson deals with effects of ocean currents, some ocean currents across the world and gyres. The gulf stream in the north atlantic and the kuroshio current in the north pacific are examples of warm currents. Horizontal and vertical distribution of salinity geography notes for upsc ncert notes on important topics for the upsc civil services exam. Ocean currents are the continuous flow of huge amount of water in a definite direction while the waves are the horizontal motion of water. To download this file in pdf form click on download button given below upsc prelims 2017 physical geography notes pdf physical geography study material. Geography for upsc cse ocean currents civil services youtube. The ias syllabus can be found at the upsc official website or scroll down to download the upsc syllabus pdf for both prelims and mains. They flow in between the equator and about 20 0 south.
Of all the warm currents, the gulf stream has been studied most extensively. Upsc often ask questions in prelims and mains from the topic of ocean currents. They constitute about 10% of all the waters in an ocean. Comprehensive guide for upsc aspirants by lotus arise september 23, 2019 september 28, 2019 hey dosto, in this blog post we will discuss how to approach oceanography upsc for geography optional. Apr 29, 2020 ocean currents, waves and upwelling geography, upsc mains exam upsc video edurev is made by best teachers of upsc.
Dec 14, 2018 the ocean currents contribute to the salinity variations. It aids in distributing heat and energy around the earth, as the warm water it carries releases heat into the atmosphere, and in absorbing and storing atmospheric carbon. It is one of the five main currents which provides a major outflow of cold arctic waters into the atlantic ocean. Save 50% on all pmfias pdf and doc notes subscribe to pmfias ad free at rs. Cyclone can cause extensive damage v a cyclone can pound a coast with huge waves and sweep the land with strong winds and heavy rains. Ocean currents are the continuous flow of huge amount of water in a definite direction. Ocean currents are similar to winds in the atmosphere in that they transfer. Download upsc mains geography optional syllabus pdf upsc.
Upsc geography optional syllabus pdf download geography. In this topic we have provided ocean current name, type and their flowing ocean. How do ocean currents and water masses differ in their impacts on marine life and coastal environment. Apr 03, 2016 important currents of the pacific ocean are as follows. Ocean energy declared as renewable energy insightsias. Currents of north atlantic, south atlantic, north indian ocean, south indian ocean solution of upsc prelim questions from 1997, 2002, 2012 and 20. Pacific ocean currents phytoplankton and fishing pmf ias. C8ocean currents upsc iasgulf strem,north atlantic drift,bengula,kuroshio,oyashio. Though upsc keeps changing its pattern of questions every year, atleast one can. Indian ocean currents effect of monsoons on north indian. Terrigenous deposits are classified into 3 categories on the basis of location and depth. It is the layer of the ocean water which moves due to the stress of blowing the wind and this motion is thus called as ekman transport.
Differences in water density, resulting from the variability of water temperature thermo and salinity haline, also cause ocean currents. November 21, 2017 november 21, 2017 exam made easy 0 comments ocean currents, ocean currents for upsc. Jan 15, 2016 atlantic ocean currents the behavior of the atlantic ocean currents is quite significant because of their influence on the climate of northwestern europe, climate of northwestern africa and fishing in the grand banks region. Ekman layer, ekman spiral, ekman transport and their impact. Upsc notes edurev is made by best teachers of upsc. Apr 03, 2016 the current systems of the indian ocean are largely controlled and modified by landmasses and monsoon winds. Surely this will help for the students those who are prepare for the competitive exams.
The atlantic meridional overturning circulation amoc is a large system of ocean currents that carry warm water from the tropics northwards into the north atlantic. To help aspirants, we have provided the detailed upsc ias syllabus for prelims exam preparation. Ocean currents represent a regular volume of water in a definite path and direction. Gyres of ocean currents in each of the major oceans. Ias syllabus 2020 download upsc syllabus pdf for prelims. Sep 19, 2019 the atlantic meridional overturning circulation amoc is a large system of ocean currents that carry warm water from the tropics northwards into the north atlantic. Salinity, temperature and density of water are interrelated. Its not easy to remember all the names, location and type warm or cold of ocean currents without the right guidance. The ocean currents and waves very often disturb the gradation and sequence of sediments. Prelims test series discount 10% for nondrishti students online. Candidates can download the study materials pdf from our website. A new study suggests a link between atlantic meridional overturning circulation amoc and the indian ocean for thousands of years, atlantic meridional overturning circulation amoc has remained stable but in the last 15 years, signs show that amoc may be slowing, which could have drastic consequences on the global climate.
Geography for upsc cse ocean currents civil services. Next, we need to highlight the impact of ocean currents on climate. Gk, general studies, optional notes for upsc, ias, banking, civil services. Hence the circulation in the south indian ocean is similar to the other two oceans while the circulation in the north indian ocean is completely different. Upsc current affairs top 50 current affairs download pdf. Ocean currents and mixing by winds and waves can transport and redistribute heat to deeper ocean layers. Ocean currents are body of water mass with a slightly different. Upsc prelims 2017 physical geography notes pdf free study. Equatorial atlantic ocean currents under the influence of prevailing trade winds, the north equatorial current and the south equatorial current start from the eastern. Ocean currents factors responsible for the formation of ocean currents effects of ocean currents on climate, fishing, navigation, tropical cyclones.
Hence, any change in the temperature or density influences the salinity of an area. These notes will also be useful for other competitive exams like banking po, ssc, state civil services exams and so on. The energy of ocean currents under the surface is comparable to the wind above it. Upsc geography ocean currents and its impact on climate.
Constitutional morality important topic fulllength test gs paper 1 60 steps bonus material attempt now. The ocean currents in indian ocean are studied under the following subheadings. Equatorial pacific ocean currents under the influence of prevailing trade winds, the north equatorial current and the south equatorial current start from the eastern pacific west coast of central. Coastal and sea floor features influence their location, direction, and speed. Mar 05, 2019 in this article, we are giving the list of ocean currents of the world which will be helpful for the aspirants of the competitive exams like upsc pcsssccds etc. Highest and lowest salinity of ocean water upsc ias. Hence the circulation in the south indian ocean is similar to the other two oceans while the circulation. Factors affecting salinity of ocean water upsc ias. This document is highly rated by upsc students and has been viewed 618 times. What are the different ocean currents that carry warm water give at least three examples. Upsc prelims exam syllabus for gs paper 1 and gs paper 2 csat are important in ias prelims exam preparation. Atlantic ocean currents the behavior of the atlantic ocean currents is quite significant because of their influence on the climate of northwestern europe, climate of northwestern africa and fishing in the grand banks region.
Hence, covering it becomes a challenge for the aspirant. The movements of water in oceans can be categorized into currents, waves, and tides. Pacific ocean currents includes various cold and warm current which moves clockwise circulation in northen pacific ocean and anticlockwise circulation in south pacific ocean thereby influencing the climatic pattern in the coastal regions. Current affairs history geography polity economics culture environment science and technology hydrosphere. This video is highly rated by upsc students and has been viewed 815 times. Western boundary currents are warm, deep, narrow, and fast flowing currents that form on the west side of ocean basins due to western intensification. History and geography paper was held on 21st of september, 2019 in morning session. Upsc geography optional syllabus pdf download geography ias. Upsc ias prelims syllabus 2020 ias prelims exam syllabus is provided by upsc in its official notification. Indian ocean currents and monsoons the currents in the northern portion of.
This lesson will be extremely beneficial to those who are preparing for upsc civil services examination cse for ias, ips, irs etc. Indian ocean being surrounded by the indian subcontinent, afr. Upsc has provided the broad ias syllabus for prelims exam. Important geography topic ocean currents exams daily.
Oceanography currents geography notes on ocean currents. Download upsc mains ias 2019 exam general studies paper 1 general studies gs paper i in pdf. According to wegener, poles have changed their position, e. World geograpgy ocean currents november 21, 2017 november 21, 2017 exam made easy 0 comments ocean currents, ocean currents for upsc. Among these, ocean currents are the large masses of surface water that. Geography is the most popular optional subject in upsc mains. May 02, 2020 ocean currents physical geography, upsc, ias. Winds are able to move the top 400 meters of the ocean creating surface ocean currents. The circulation currents of indian ocean is different from the pacific and the atlantic ocean. Ocean currents national oceanic and atmospheric administration. Upsc civil services prelims for the year 2020 will be held on may 31, 2020 sunday.
In this article, we are giving the list of ocean currents of the world which will be helpful for the aspirants of the competitive exams like upscpcsssccds etc. The suns heat warms the surface water a lot more than the deep ocean water, and this temperature difference creates thermal energy. Upsc cse geography optional syllabus pdf upsc mains geography optional subject contains two papers in civil service examination. Achievers corner drishti ias coaching in delhi, best upsc. Tlp 2020, phase i online free initiative daily mains answer.
Apr 20, 2017 geography for upsc cse ocean currents civil services. Upsc press release prelims 2020 deferred dcat pdf versions are now available on drishti ias app. Each paper is for 250 marks and comprises a total of 500 marks. Ocean currents shortcut method by to learn faster clear ias. Atlantic meridional overturning current is the large system of ocean currents operating in the atlantic ocean. Oceanography basics mcq questions and answers geography. Among all the subjects that are included in the syllabus of the civil services examination, geography arguably has the largest syllabus. Best 600 indian geography pdf mcq for ssc upsc ias. Winds, water density, and tides all drive ocean currents. In both oceans, it is separated from the equatorial circulation by the equatorial countercurrent, which flows eastward.
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