3 minutes into the video and I feel assured that I have come to the right place for a quick recap. Thanks a lot Drishti and my respects to the educator. :)
Another beautiful explanation. A complex and wide phenomena is very well explained in a step by step and simplistic approach. Highly recommended to watch. Best wishes
He is the best teacher for geography. He explains every topic is a very simple manner like you cut the butter by knife. If you attend one class then the topic will remain in your mind forever.
Thank you sir ...thank u team drishti for providing such opportunity to understand these topics. .would u please upload every week one lecture on similar topics ..
@@chinmayamalik5849 Interannual to decadal variability in the Pacific Ocean is a prominent feature of Earth’s climate system, with global teleconnections. Recent studies have identified Pacific decadal variability as a major driver of periods of rapid and slower global mean surface air temperature change. Here, we use an eddy-permitting global ocean model to investigate the role of the observed 1992-2011 trade wind intensification and concurrent trends in surface atmospheric variables over the Pacific associated with the negative phase of the Interdecadal Pacific Oscillation (IPO) in driving ocean circulation and heat content changes. We find a strengthening of the Equatorial Undercurrent (EUC) in response to strengthened winds, which brings cooler water to the surface of the eastern Pacific and an increase in the Pacific shallow overturning cells (PSOC), which in turn drives additional heat into the subsurface western Pacific. The wind acceleration also results in an increase in the strength and subsequent heat transport of the Indonesian throughflow (ITF), which transports some of the additional heat from the western Pacific into the Indian Ocean. The circulation changes result in warming of the subsurface western Pacific, cooling of the upper eastern Pacific Ocean and warming of the subsurface Indian Ocean, with an overall increase in Indo-Pacific heat content. Further experiments impose a symmetric reversal of the atmospheric state to examine how the ocean would behave if the winds (and other atmospheric variables) were to revert to their initial state. This mimics a return to the neutral phase of the IPO, characterised by a weakening of the Pacific trade winds. In response we find a slowdown of the EUC and the PSOC, which results in a return to climatological SST conditions in the western and eastern Pacific. The ITF also slows towards its original strength. However, the subsurface temperature, heat content and ITF responses are not symmetric due to an overall increase in the surface heat flux into the ocean associated with the cooler surface of the Pacific. There may also be irreversible heat transport across the thermocline via diapycnal mixing, further contributing to this asymmetry. The net result of the experiment is that the Indo-Pacific subsurface ocean is warmer than it was in its initial state.
@@amarjeetchaudhary5271 Maher, N., England, M. H., Gupta, A. S., & Spence, P. (2018). Role of Pacific trade winds in driving ocean temperatures during the recent slowdown and projections under a wind trend reversal. , (1-2), 321-336. doi.org/10.1007/s00382-017-3923-3
what are the some of the other reeason for intensifying and depletion of trade winds? Please you all know the common question a student will ask. Please explain.
Sir what are the exact reasons for strengthening and weakening of trade wind......are there any anthropogenic reasons?? Are these el-nino and la nina....completely natural events or some human disturbance in environment adding it
Sir, you told that the relationship between pressure and temperature is inverse but UNIVERSAL GAS EQUATION states direct relationship between them(PV=nRT). pleaase clarify my confusion 🙏🏼
the formula you mentioned, R is a gas constant which has a reciprocated value, right? R=8.31JK ^ -1 so to make the power of -1 to +1 , we gave to reciprocate T, hence PV=nR/T
Being a meteorologist of IMD,I think your teaching material is praiseworthy, thanks.
Glad you think so!
3 minutes into the video and I feel assured that I have come to the right place for a quick recap. Thanks a lot Drishti and my respects to the educator. :)
Geography sir is best teacher ❤
First time I got this concept cleared so well... Thank you so much Sir 💕😊 you are amazing teacher 🙏🌹😍🌹🙏
No words for such an awesome explanation. Thank u sir
Best teacher of geography
Brilliant teacher. Brilliant technology used.
That’s what we call ideal explanation.
Clear and Well Explained. Super Teacher!
impressive!!!! liked the way everything was linked in such a simplistic way and covered comprehensively. make more such explained video.
Best ever explation by sir 🙏
Thanku so much sirji...beautifully explained
Well explained...thank you sir 🙏
Excellent explained sir ... 🙏
Thank u drishti ias . Please make more videos on geography upsc topics.
What an explaination!...thank you so much sir..🙏🙏🙏
Glad you liked it!
Another beautiful explanation. A complex and wide phenomena is very well explained in a step by step and simplistic approach. Highly recommended to watch. Best wishes
He is the best teacher for geography. He explains every topic is a very simple manner like you cut the butter by knife. If you attend one class then the topic will remain in your mind forever.
Excellent presentation, absolute clarity ..
Thank you Sir for clearing my doubt. Kindly make new videos for this series..
Thank you sir for a comprehensive analysis.......
Thank you sir for the explanation of this intersting and important topic🙏🙏🙏🙂
Well explained... Thankyou for making our concept sir😍
Thank you for precise explanation of topic...
Thank you sir ...thank u team drishti for providing such opportunity to understand these topics. .would u please upload every week one lecture on similar topics ..
Excellent lecture sir
Excellent stuff!! Kudos👏🎉
Nicely explained the interlinking with other climate aspects 🙏
Thank you sir please do more videos
Superbb sir👌
Nicely explained 👌🏼👌🏼
Excellent 👍👌
Sir u r genius🙏
So good. Thankyou sir.
Nicely explained sir!
Please continue the explained series sir🙏🙏🙏
Brilliantly explained 👍
Sir Atleast One lecture a week plz....👌
Good explanation sir ji concept clear 👍
Thankyou so much Drishti IAS team.
Jai Hind 🇮🇳..
ok your concept is clear now tell me why the trade wind weaken and intensifies?
@@chinmayamalik5849
Interannual to decadal variability in the Pacific Ocean is a prominent feature of Earth’s climate system, with global teleconnections. Recent studies have identified Pacific decadal variability as a major driver of periods of rapid and slower global mean surface air temperature change. Here, we use an eddy-permitting global ocean model to investigate the role of the observed 1992-2011 trade wind intensification and concurrent trends in surface atmospheric variables over the Pacific associated with the negative phase of the Interdecadal Pacific Oscillation (IPO) in driving ocean circulation and heat content changes. We find a strengthening of the Equatorial Undercurrent (EUC) in response to strengthened winds, which brings cooler water to the surface of the eastern Pacific and an increase in the Pacific shallow overturning cells (PSOC), which in turn drives additional heat into the subsurface western Pacific.
The wind acceleration also results in an increase in the strength and subsequent heat transport of the Indonesian throughflow (ITF), which transports some of the additional heat from the western Pacific into the Indian Ocean. The circulation changes result in warming of the subsurface western Pacific, cooling of the upper eastern Pacific Ocean and warming of the subsurface Indian Ocean, with an overall increase in Indo-Pacific heat content.
Further experiments impose a symmetric reversal of the atmospheric state to examine how the ocean would behave if the winds (and other atmospheric variables) were to revert to their initial state. This mimics a return to the neutral phase of the IPO, characterised by a weakening of the Pacific trade winds.
In response we find a slowdown of the EUC and the PSOC, which results in a return to climatological SST conditions in the western and eastern Pacific. The ITF also slows towards its original strength.
However, the subsurface temperature, heat content and ITF responses are not symmetric due to an overall increase in the surface heat flux into the ocean associated with the cooler surface of the Pacific.
There may also be irreversible heat transport across the thermocline via diapycnal mixing, further contributing to this asymmetry. The net result of the experiment is that the Indo-Pacific subsurface ocean is warmer than it was in its initial state.
@@amarjeetchaudhary5271
Maher, N., England, M. H., Gupta, A. S., & Spence, P. (2018). Role of Pacific trade winds in driving ocean temperatures during the recent slowdown and projections under a wind trend reversal. , (1-2), 321-336. doi.org/10.1007/s00382-017-3923-3
Thank you by the way.
Thank you so much sir.
Good explanation sir
Sir, please make more n more explained series. It is really helpful. Thank you.
Thank you so much Sir for Comprehensive explanation
Much needed topic ....thanks team drishti.
And plzz inform us when the new online/offline batch is going to start?
thanks a lot sir
Superb sir!
Elaborate information and wonderful explanation
Glad you liked it
Very well explained. Dear Saurabh! Please expain whether economic effect of both these scenarios is more in India or Peru is affected the most
Thank you.
Tquu sir lecture amezing........
Clear in any part of elnino &lanino...
Keep watching
Sir,can you made a video on sea floor spreading..
Thanku sir🙏
Thank you so much sir😍🙏
wow thanks
Ultimate explanation 💯
Good Evening Sir.....
Good
it was helpful!!!
very well explained... but pls try to provide the timestamps also.. so that people may know which section to refer and which to not.
Thanks for your suggestions Dear we will forward it to our concern team members.
When wil you launch app for iOS users sir?
Superb 👍
Wow
Thanks
🙏 great sir
Sir Temperature and pressure are directly related.....u have mentioned and inverse relationship...???
what are the some of the other reeason for intensifying and depletion of trade winds? Please you all know the common question a student will ask. Please explain.
Ty sir🙏
Plez take one explained session on Indian rivers similar to the explained session on passes in Himalayan region
Thanks for your suggestions
Thank you for explaining so clearly sir. I've understood the topic quite well sir.
Glad to hear that
Very thank you so much sir 👏
Sir what are the exact reasons for strengthening and weakening of trade wind......are there any anthropogenic reasons??
Are these el-nino and la nina....completely natural events or some human disturbance in environment adding it
Not discovered yet ... research is still going on
Please include "i" button for the recommended video such as indian ocean dipole etc.
I came here only after sir asked us to watch his video on el nino for further elaboration
Sir please explain... Maidain julian oscillation
Plz make a video on a topic of jet stream.
Thanks for your suggestion we will forward it to concerned team members
Sir, you told that the relationship between pressure and temperature is inverse but UNIVERSAL GAS EQUATION states direct relationship between them(PV=nRT). pleaase clarify my confusion 🙏🏼
@Saurabh Singh Tomar Sir, please upload INDIAN MONSOON in your explained series 🙏🏼
the formula you mentioned, R is a gas constant which has a reciprocated value, right? R=8.31JK ^ -1
so to make the power of -1 to +1 , we gave to reciprocate T, hence PV=nR/T
Those equations are for close system but here we study in open system and in open system pressure is showing inversely proportional to temperature.
This equation (PV=nRT) is valid only for closed or isolated system.
👍🏿
El nino occurs because of weakening of the trade winds...bt y do these trade winds weaken ?? Can anyone explain me clearly
For some unknown reason....
Their isn't enough research till now..
Hlo bhai log
Rohit wazir sir is far better.....
Hhhhh
Thank you sooo much sir 🙏🙏🙏
Nice
Thanks