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Messages - Sonali

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Announcements / VATI (Value Added information in real TIme)
« on: November 20, 2017, 03:23:35 PM »
Dr Sat Kumar Tomer and his Research Group (Aapah Innovations) have introduced an Interesting application:
VATI [Visualization of the data in near real-time]...

VATI (Value Added information in real TIme) is an application to visualize value-added information in real time. The value-added products/information is estimated by processing the data from multiple satellites.
Free edition includes:
(i) Visualization of the data in near real-time.
(ii) Chose any one geographical area.
(iii) Downloading of maps in png format.
You can access the VATI by clicking here. If you do not have the credentials for VATI, you can request by sending an email to

The following users thanked this post: Alok Pandey

Announcements / 1-2 PhD positions and 1 Post-Doc position
« on: September 13, 2017, 06:56:57 AM »

I am looking for highly motivated students/scholars with good research aptitude, to work in the field of hydrological modeling focussing extremes. 1-2 PhD positions and 1 Post-Doc position are available.

Kindly circulate this among interested candidates. Those interested may write to;, along with their CV. Thanks.

Dr Dhanya C.T.

Office: Block V, Room No.: 304
Department of Civil Engineering
Indian Institute of Technology (IIT) Delhi
Hauz Khas, New Delhi - 110016
Office Tel.: +91 11 2659 7328
The following users thanked this post: Sat Kumar Tomer

Announcements / Urgently need: structure and water faculty, Civil Engg.
« on: September 12, 2017, 10:37:55 PM »

Amrita University Coimbatore is in requirement of faculty members with PhD in structures and water resources.
As per Times ranking Amrita is No.1 university in international outlook in India.
Overall,  Amrita is No.1 private university in India as per Times and NIRF ranking.

Interested may contact Dr. Sreevalsa:
Or Amrita HR directly
The following users thanked this post: prashantbhagawati


2018 SWAT international Conference to be held at IIT Madras
is now accepting

Abstract Submission Deadline   October 15
Notification of Acceptance          October 30
Early Registration Deadline         November 15
SWAT Workshops                          January 8-9
SWAT Conference                          January 10-12

Conference topics

Large Scale Applications
Climate Change Applications
Sensitivity Calibration and Uncertainty
Biofuel & Plant Growth
Environmental Applications
Sediment, Nutrients, and Carbon
Pesticides, Bacteria, Metals, and Pharmaceuticals
Model Development
Database and GIS Application and Development
Urban Processes and Management
Landscape Processes and Landscape / River Continuum
InStream Sediment and Pollutant Transport
SWAT Development and Application in India
River Basin Management in India
Hydrological Modeling & Remote Sensing Applications
Irrigation Water Management with SWAT
The following users thanked this post: prashantbhagawati


See comment on PNAS paper by Tata Institute of Social Sciences
Spurious linkages between extreme temperatures and farmer suicides

A recent paper, published by the PNAS (Proceedings of the National Academy of
Sciences of the United States) and authored by Tamma A. Carleton, titled “Climate
Change and Agricultural Suicides in India” claims that “temperature during India’s
main agricultural growing season has a strong positive effect on annual suicide rates.”
The following users thanked this post: Chandan Banerjee

Announcements / CliMT: A climate modelling framework
« on: July 25, 2017, 08:04:04 AM »

Hello All,

as some of you may be aware, we have been involved in
building a climate modelling framework that can be used
entirely from Python.

I'm happy to inform you all about the first release of CliMT.
This version of CliMT is capable of running as a simplified
GCM, with a spectral dynamical core. The components
currently available in CliMT are suitable for research use.

Please do play around, and I am happy to receive any

Documentation, including installation instructions, are
available at:

The code is available at:

which contains many examples that you can adapt for
your own needs.


From: Joy merwin monteiro
The following users thanked this post: Sat Kumar Tomer



TITLE: "An Extreme Event Attribution Study of the Heat Wave of Summer 2015 and Chennai Rain Event of December 2015"




The following users thanked this post: Sat Kumar Tomer, Pankaj Dey


Dear All:

We are organizing a two-day short course on "Advances in Data Assimilation Techniques" under Continuing Education Programme in Indian Institute of Technology (IIT) Delhi on 21-22 September 2017. 

This two-day course will provide a glimpse of the advancements in data assimilation techniques, focusing especially on the land surface models and assimilation techniques. The speakers will initiate an introduction to the basics of data assimilation, and introduction to land data assimilation in weather and climate models. The course will also focus on the sources of uncertainty, characterization of uncertainty of model predictions, how data assimilation is essential for characterizing and reducing uncertainty and the feasibility of these in large scale high resolution model predictions.

For more details about the course, speakers and registration, please download the brochure from:

Last date of registration is 20th July 2017.  Please note that registration is limited to only 30 participants, on a first come first serve basis.

Please write to me, if you have any queries.

Thanks & Regards,
The following users thanked this post: Rohith Kannada


The Australian Research Council Centre of Excellence for Climate Extremes is a major seven-year initiative that brings together five of [UTF-8?]Australia’s leading universities and a suite of national and international partners.

Our goal is to transform our understanding of past and present climate extremes and revolutionize our capability to predict them into the future.

We are seeking a diverse range of talented postdoctoral research associates to help us realise this vision. We currently have 14 positions available across our [UTF-8?]Centre’s universities in Sydney, Melbourne, Canberra and Hobart. Learn more about the Centre at:

To succeed in one of these roles you will have a PhD, good quantitative skills, and expertise in a relevant field such as climate modelling, climate dynamics, physical oceanography, atmospheric science, hydrology, mathematics, etc.

When you come to work with us, [UTF-8?]you’ll get more than a typical postdoc. The Centre offers an exceptional environment to nurture and enhance your career. We offer a tailored researcher development program which includes workshops and seminars to improve your scientific, technical and communication skills. There are also leadership development opportunities and funding to enable you to travel between our universities to enhance strong collaborative relationships with your peers and mentors. We also offer a competitive internal fellowship scheme to further boost career opportunities for researchers from traditionally underrepresented populations in our field.

The ARC Centre of Excellence for Climate Extremes seeks to be at the forefront of fostering a culture of diversity, inclusion, respect and wellbeing. All positions are offered flexibly, either full time or part time to suit and support your lifestyle.

We are looking for people to join our team to work on the following projects across our four core research programs of Extreme Rainfall, Heatwaves and Cold Air Outbreaks, Drought, and Climate Variability and Teleconnections.

Embedded CGI removed by webmail.*
Positions at UNSW, Sydney

• Spatio-temporal modelling to improve extreme rainfall event prediction
[UTF-8?]• How do land processes affect heatwaves?
[UTF-8?]• Coupled ocean-atmosphere-sea ice interactions in the Southern Hemisphere dmid- to high latitudes

Positions at Monash University, Melbourne

Understanding rainfall extreme processes using observations and improving their representation in models

Rossby waves and extremes in heat and rainfall

ACCESS model coupling correction schemes

Variations in the Southern Annular Mode, midlatitude jet and storm tracks

Positions at The Australian National University, Canberra

The role of land-atmosphere feedbacks during drought onset, persistence and termination

Millennial-scale simulations and proxy evaluation

High resolution modelling to investigate the morphology of Southern Ocean


Positions at the University of Tasmania, Hobart

Attributing the observed changes in Southern Ocean Eddy Kinetic Energy to human influences

Biogeochemical cycles in the ACCESS-OM-01 high resolution ocean model

The predictability of marine heatwaves in the Australian region

Position at the University of Melbourne, Melbourne

• Organization of convection in the tropics and subtropics at high-resolution

For more information on each of these projects and links to full position descriptions and application pages go to

The following users thanked this post: Sat Kumar Tomer, Agilan

Announcements / ENSO initiation
« on: May 05, 2017, 09:22:51 AM »

This news item discusses a potential enso initiation pathway.
The following users thanked this post: Pankaj Dey


Science and Engineering Research Board (SERB; in partnership with the bi-national Indo-US Science and Technology Forum (IUSSTF; announces the SERB Indo-US Postdoctoral Fellowships for Indian Researchers in USA as an initiative under the SERB Overseas Postdoctoral fellowship Scheme (SERB-OPDF) with the objective to build national capacity in frontier areas of Science and Engineering, which are of interest to India.

The objective of the SERB Indo-US Postdoctoral Fellowships for Indian Researchers is to introduce scientists and engineers in the early stages of their careers to international collaborative research opportunities, thereby furthering their research capacity and global perspective and forging long-term relationships with scientists, technologists and engineers in USA.

These awards will provide an excellent opportunity to young Indian scientists and technologists of all disciplines, under the age of 35 years to interact with the  U.S scientific community and get first-hand information of the developments taking place at the international level and to acquaint themselves with new scientific research methods and to collaborate in larger research project. It will enable young Indian researchers to carry out a clearly defined research project at a place of their choice in U.S for a period of 12 months. The individual availing this fellowship would be called as SERB Indo-US Research Fellow.
Eligibility Criteria
Age: Upto 35 years as on 31 December 2016
Indian citizens who have completed their Ph.D. from a Public-funded R&D Laboratory/ Recognized Academic Institution / University /College in India. Those unemployed as on date should have completed their Ph.D. degree after 31 December 2014.
Letter of Acceptance from the U.S. host institute.
Specific Areas of Research:
Advanced Manufacturing, Big Data, Bio-energy, Cognitive Science, Complex systems, Cyber security, Encryption and decryption, Energy, Genetic to Physiology, High Performance Computation in Physics, High Performance Computation in Chemistry, High Performance Computation in Biology, High Performance Computation in Mathematics, Humanoid Robotics, Materials, Mechanobiology / Physical Biology, Mechnotronics, Mental Health, Modeling, Imaging, Algorithms and Combinatorial Optimizations, Petroleum and Petro-Chemical Engineering, Quantum Computing and Spintronics, Science of Climate Change, Glaciology, Sustainable Chemistry, Theoretical Mathematical Science.

Place of work:
The fellow should be accepted and hosted by the U.S scientific/technological institution. There should be willingness on the part of the U.S institution to accept and extend necessary support to the candidate for the research proposed during the Fellowship.

The candidate should himself/herself correspond with their proposed host institute in the U.S for placement. Candidate is required to produce evidence, in the form of a letter of acceptance on the letterhead of the U.S. host institute, duly signed/stamped by the host. The letter should also include the merits/uniqueness of that host institute in the proposed area of research.

Fellowship Includes:
Return Air fare
Monthly Stipend
Personal Contingency Grant
Overseas Medical Insurance
Conference Allowance (if applicable)
Fellowship Duration:
12 months

The following users thanked this post: Agilan

Programming / Re: Python Resources for Hydrologists
« on: January 07, 2017, 12:01:22 PM »
Congratulations Sat... :)
Your contribution is huge  for Python community as well as for IFWA!! .... :) :)
The following users thanked this post: Sat Kumar Tomer








Land-use and land cover change (LULCC) can have significant biophysical impacts on regional precipitation, including monsoon rainfall. Using global simulations with and without LULCC from 5 general circulation models (GCM), under the Representative Concentration Pathway (RCP) 8.5 scenario, we find that future LULCC significantly reduce monsoon precipitation in at least 4 (out of 8) monsoon regions. While monsoon rainfalls are likely to intensify under future global warming, we estimate that biophysical effects of LULCC substantially weaken future projections of [UTF-8?]monsoons’ rainfall by 9% (Indian region), 12% (East Asian), 32% (South African) and 41% (North African) relative to the changes in RCP8.5, with an average of ~30% for projections across the global monsoon regions. A similar strong contribution is found for biophysical effects of past LULCC to monsoon rainfall changes since the preindustrial period. Rather than remote effects, local land-atmosphere interactions, implying a decrease in evapotranspiration, soil-moisture and clouds along with more anticyclonic conditions, could explain this future reduction in monsoon rainfall.

(published recently in Geophysical Research Letters: )
The following users thanked this post: Pankaj Dey


CAOS PhD Thesis Defence

Title: Temporal Persistence and Spatial Coherence of Tropical Rainfall

Speaker: Ram Ratan

Date: December 30, 2016 (Friday)

Time: 4:00PM

Venue: CAOS Seminar Hall


This work focuses on documenting the multiscale nature of the temporal
persistence and spatial coherence of tropical rainfall.  The first two
parts utilise satellite-retrieved rainfall  at multiple space and time
resolutions,   and   the   third   part  assesses   the   ability   of
state-of-the-art  coupled models  to  reproduce some  of the  observed

In  the  first part  of  the  study,  which  focuses on  the  temporal
persistence  of rain,  we  analyze the  Tropical Rainfall  Measurement
Mission (TRMM)  satellite-based observations  to compare  and contrast
wet and dry spell characteristics over the tropics (30S-30N).  Defining
a wet (dry) spell as the  number of consecutive rainy (nonrainy) days,
we find  that the distributions  of wet spells (independent  of spatial
resolution) exhibit  universality in the following  sense.  While both
ocean and land regions with high seasonal rainfall accumulation (humid
regions) show a predominance of 2-4 day wet spells, those regions with
low seasonal rainfall accumulation (arid  regions) exhibit a wet spell
duration distribution that is  essentially exponential in nature, with
a peak  at 1  day. The behaviour  that we observed  for wet  spells is
reversed for  dry spell distributions. The  total rainfall accumulated
in each wet  spell has also been  analyzed, and we find that the major
contribution to  seasonal rainfall  for arid  regions comes  from very
short length wet spells; however, for humid regions, this contribution
comes from wet spells of duration as  long as 30 days. We also explore
the role  of chance  in determining the  2-4 day mode  as well  as the
influence of organized convection in separating reality from chance.

The second part deals with the spatial coherence of tropical rain.  We
take two different  approaches, namely, a global and  local view.  The
global view attempts to quantify  the conventional view of rain, i.e.,
the dominance of the intertropical  convergence zone (ITCZ), while the
local view tries to  answer the question: if it rains,  how far is the
influence  felt   in  zonal   and  meridional  directions?    In  both
approaches, the  classical e-folding length for  spatial decorrelation
is used as  a measure of spatial coherence.  The  major finding in the
global  view approach  is that,  at short  timescales of  accumulation
(daily to  pentad to even  monthly), rain  over the Equator  shows the
most  dominant  zonal scale.   It  is  only  at larger  timescales  of
accumulation (seasonal or annual) that the dominance of ITCZ around 7N
is evident.  The local view quantifies  the dominance of the zonal
scale  in the  tropical ocean  convergence zones,  with an  anisotropy
value (ratio of zonal to meridional scales) of 3-4.  Over land, on the
other  hand,  the  zonal  and  meridional  scales  are  comparable  in
magnitude,  suggesting that  rain tends  to be  mostly isotropic  over
continental regions.  This latter  finding holds true, irrespective of
the  spatial  and temporal  resolutions  at  which rain  is  observed.
Interestingly, the anisotropy over ocean, while invariant with spatial
resolution, is found  to be a function of temporal  resolution: from a
value  of 3-4  at daily  timescale, it  decreases to  around 1.5-2  at
3-hourly resolution.

The final part  analyses a few models from the  suite of Coupled Model
Intercomparison Project  (CMIP5) models, to evaluate  their ability to
reproduce some of  these aforementioned features.  For  all the strong
biases that  models are known to  have, some of the  observed features
(e.g., 2-4  day mode  in wet  spells, isotropic  rain over  ocean) are
remarkably well reproduced.
The following users thanked this post: Pankaj Dey

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