anand

i realize that the heart can never be happy as we are so bound by the desires within.

Learning list

Seismic Wave Propagation; Seismic Imaging

Fortran,MATLAB, C++ for Madagascar, Python, Raftor,LAtex

These are some the fields followed by the requisite skills required to well in the aforementioned fields.

anticipation

to be overwhelmed by the sheer volume of work done in imaging (am speaking here of seismic imaging) is obvious and difficult to overcome. There is immense amount of work already done in the filed but that is just an inspiration rather than impediment in search of more problems. There are numerous problems as I have witnessed in imaging of earth's interior(oops I reproduced Claerbout) from my work experience. This was one of the reasons that drove me to research.

All I can say for now "I look forward to the future with anticipation of great enjoyment in this journey'

Resrch prob

To hit on a research problem that's is still fertile is like finding a road to the jackpot. There are many obstacles before we find the road. Our vision is to be modified before we are able to see far into the future and decide what is going to be a problem worthwhile to work on that may have an impact on the future and the understanding of the field.

Besides getting to the problem to the problem the other factor that I guess is a major challenge that many researchers may be working on the same problem so to reach to the solution in the fastest time is a big thing. Now I do not have a complete idea regarding where do I stand w.r.t to fellow researchers but I know that the first part of research(i.e finding a problem) is my first concern now. Even though it doesn't imply that I shouldn't look the second part of the problem but I work on the First things first basis and that means handling one thing at a time or more concisely out focus. Focussed approach would be far more helpful than just getting lost in the huge world of research with undefined variables to trouble us all the time.

The work begins

Met Dr.Sen today at 2.30 pm. When I got to my office I was a bit hesitant to go into his room as I found him busy working once and the other time I went I found him talking on phone. After asking fellow office mets about what's the protocol I was bit relaxed when they told me it was just knowing at the door that took to grab is attention.

We discussed what possible direction I may have to work. He started off with Seismic Imaging and probably seismic anisotropy. Both the fields are new to me and I am definitely excited to be working on any of these fields.

He commenced with explaining with the help of sketch board about the two classification of migration:Imaging and Extrapolation. Extrapolation method as the name itself suggests has many algorithms like Kirchoff, Phase shift migration ,reverse time migration. When I asked about Phase Shift migration of which I had read a little he explained to me how in a homogeneous media in which velocity varies only with depth this method can be employed to do quick migration. With the aid of exploding earth model and the concept of downward migration to arrive at a solution he explained how a feasible solution can be arrived at.

I hope to be occupied well with the work at hand and that is to understand migration principles.

What I want to read in geophysics now

After discussions with Dr.Sen regarding the field that I would e working in I have narrowed ot down to the field of seismic imaging. At the same time I would keep reading on seismic data analysis , anisotropy and inversion. While I am still not aware of how challenging these fields may be mathematically ( since I think i learn slowly, I may be at a little offset from making the progress at the desired pace) but I guess it comes with practice. Eventually I would like to work on Seismic Wave Propagation which has already been researched a lot; I hope to find something interesting about it.

I do not have time on my side and as is always the case I am chasing it to keep up with it but inspite of that I lose track of it sometimes. I hope I shall be able to develop the skills ( which are programming, mathematics and geology coupled with imagination or visualisation whichever way any one would like to put it).

So Seismic Imaging by John Scales is one of the books that I would base my research on looking for possible areas of problems. At the same time to look at seismic wave propagation theory I would try and develop an understanding of Quantitative Seismology by Aki & Richards. This particular book adopts a very compact way of describing things and it looks beautiful since it is devoid of many calculations and rather based on developing an understanding of the subject. For the strengthening my base I would have to read mathematics. As a major part of my endeavour to pursue research successfully I would also have to develop programming skills which I did not get a good chance to study and pursue.

I hope that with time I am able to do it progressing for ever every day a little bit toward the goal.

27 Aug

A lot of wasted effort can be avoided if i become focused. Concentrating on one thing at a time I think can be very useful. I guess it comes with practice that the inner self is calmed and we become more balanced. Perturbations are more inside than due to forces outside. What we think alters our behaviour can be controlled from within but it come s with patience and practice. Is human brain so designed that it can not rest in peace at a place for a long period of time and fidget away roaming like a fool without knowing what it is looking for?

A more calmer self is how I visualise to be but the mind is overpowering very so . A result of allowing t to do whatever it like and pleases it whims. Ooh yes I need a power beyond my reach at this stage to bring the wavering find to halt and lodged in a dock. What we look for with full earnestness is achieved ( or maybe again the mind is playing games with us giving us a fancied of vision what it desires,....oh how do I differentiate between the real and unreal,;For what is real and what is unreal I know not ).