Becoming (Geo)Scientist Email: jyotirmoyp@iisc.ac.in - - PowerPoint PPT Presentation

Becoming (Geo)Scientist

01-08-2020

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Jyotirmoy Paul Centre for Earth Sciences Indian Institute of Science Email: jyotirmoyp@iisc.ac.in Find me: https://jyotirmoyp.github.io

• r http://ceas.iisc.ernet.in/~jyotirmoy/

Twitter: @JyoGeoPhy

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Who am I?

Pursuing PhD in Geodynamics at IISc Develop numerical models of Earth Music, Read, Travel JU Years: 2010 - 2015

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Break the ice!

https://www.menti.com/d9mx5x3mai

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Break the ice!

https://www.menti.com/d9mx5x3mai

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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My influence

Beautiful nature Love for mountain How did they form? A book by Prof. Sudipta Sengupta, Antarctica.

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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And the Journey begins…

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Geo-xxxxxx?

https://www.menti.com/rfy5b8ip6q

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Geodynamics

Dynamics: Relationship between force and motion (Also force in equilibrium) Geodynamics: Dynamics of Earth (Mantle has a hegemony here) Why? Crust : Geology Core: Magneto-Hydrodynamics (MHD)

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Into the modeling world

A scientific model is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes.

All models are beautiful!

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Why Geodynamicists model?

• Time scale of natural process: Real time

experiment is impossible

• Number of variables/ unknown in natural

system

• Non-intuitive nature of physical

properties

• Non-linear nature of governing equations

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Why cratons are still here?

(Poupinet and Shiparo, 2008, Lithos)

One of the grand challenges in Geodynamics

(Olson et al. 2010)

My Present Work

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Hypothesis for craton survival: Cratons are lighter in density What about convective erosion?

How do continents destroy?

(Karato 2010)

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Convective erosion

Do the cratons need to be strong? How strong?

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Cratons: Now and then

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Modeling evolution of cratons

(Paul and Ghosh, 2020, EPSL)

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Digging deeper into the time

Stagnant-lid and Mobile-lid (Plate-tectonics) Transition of tectonic regime ~ 3 Ga? Origin of plate- tectonics and stabilization of cratons are closely related?

(Paul 2020, AGU Eos)

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Re-Search

Interest Curiosity Imagination

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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May not Join a PhD, if

Of course you have a right enrol into a PhD program anytime, but doing PhD is not an enrolment

Will prepare for jobs in these years!

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No job in market, let’s do PhD

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Lots of money after PhD is over!

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Where are you better fitted?

https://www.menti.com/a86uezqgvr

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Academic nomads

India or Abroad?

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Understanding the system Root to culture Family Can’t Travel/ enjoy life Poor science Indian PhD Takes eternal Pros

Myths

Indian PhD

Disclaimer! All pros and myths can not be generalised. They do vary from cases to cases.

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Quality PhD Adjusting to Indian system later Racism Mental Health Lot of Money Abroad Supercool advisors Cons

Myths

PhD in abroad

Disclaimer! All cons and myths can not be generalised. They do vary from cases to cases.

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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What do you think?

https://www.menti.com/a86uezqgvr

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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#GeoGRExit

Promote anti-racism

Sense of superiority still remains. When I told the same, people laughed, Now Americans are telling So, people are accepting.

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Networking

Write Science blogs AGU EOS EGU Blogs

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Travel log

01-08-2020 Jyotirmoy Paul | Indian Institute of Science | JUGS GEOGLE

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Food for Thought

Does this figure correctly demonstrate mantle convection / Plate tectonics? Let me know!