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Dr. Ankit Agarwal

Dr. Ankit Agarwal
PostDoc
Contact:
Potsdam Institute for Climate Impact Research (PIK)
Telegraphenberg A56 / 3.47
Phone: +49 (0)331 288 20703
Email: agarwal[at]pik-potsdam.de
Postal Address
P.O. Box 60 12 03
14412 Potsdam


Profile Ankit is a hydro-climatologist interested in interdisciplinary research and teaching to understand multi-scale interactions between different components of Earth, in general, such as Atmosphere and Hydrosphere, and climate patterns and extreme events, in particular. He gained training as a Civil engineer at MBM Engineering College, Jodhpur and hydrologist during his master at IIT-Delhi but diversified his expertise in climatology and nonlinear dynamics during his PhD at the University of Potsdam. Currently, he is a postdoctoral candidate at the Potsdam Institute for Climate Impact Research and Helmholtz Center for Geosciences, section 5.4 (Hydrology) where he is responsible to develop new methods and apply them in hydrology and climatology for advance understanding. He also enriches master and PhD student of both the institutes with his expertise and knowledge. Lecturing, course design, proposal writing, reviewing journal articles, writing reports, conferences and meetings are other tasks come along way. Ankit has received International professional training for teaching. He developed and taught courses on “Applications of Matlab in Civil Engineering” and “Hydrometric methods to measure discharge and hydraulic conductivity” at the University of Potsdam.
Full CV:
PDF document Ankit_CV.pdf — PDF document, 699 KB
Research Interests

Ankit Agarwal has his research expertise in the field of Hydrology, Climatology and Nonlinear Dynamics. Particularly, he focused to study the interactions and variability of natural processes, synchronization of extreme events (climatic/hydrology) at different spatial and temporal and even cross-scales. His research shows the flavour of earth system dynamics, climate physics, stochastic hydrology, wavelet analysis, ensemble modelling, climate variability studies and some of its extension parts as regionalization technique, hydrologic classification and related subjects. Few tools which he uses are network theory, event synchronization and wavelet.

Video link:

Selected Publications

Submitted

  1. N.Ekhtiari, A. Agarwal, N. Marwan, R.V. Donner: Disentangling the multi-scale effects of sea-surface temperatures on global precipitation - A coupled networks approach. Chaos (In printing).
  2. Kurths, J#., Agarwal, A#., Marwan, N., Maheswaran, R., Caesar, L., Krishnan, R., and Merz, B.: Unraveling the spatial diversity of Indian precipitation teleconnections via nonlinear multi-scale approach. Nonlinear process in Geophysics discussion. https://www.nonlin-processes-geophys-discuss.net/npg-2019-20/  (# equally share the first authorship).

  3. Agarwal, A., Caesar, L., Marwan, N., Maheswaran, R., Merz, B., and Kurths, J.: Network-based identification and characterization of teleconnections on different time scales. Scientific Reports (In printing).

  4. Rathinasamy, M., Agarwal, A., Sivakumar, B., Marwan, N., and Kurths, J.: "Wavelet analysis of precipitation extremes over India and teleconnections to climate indices. (Stochastic Environmental Research and Risk Assessment)

    Publications

    1. Agarwal, A., Maheswaran, R., Marwan, N., Caesar, L., and Kurths, J.: Wavelet-based multiscale similarity measure for complex networks, European Physics Journal-B, https://doi.org/10.1140/epjb/e2018-90460-6.
    2. Agarwal, A., Marwan, N., Rathinasamy, M., Merz, B. and Kurths, J.: Multi-scale event synchronization analysis for unravelling climate processes: a wavelet-based approach, Nonlinear Process. Geophys., 24(4), 599–611, doi:10.5194/npg-24-599-2017, 2017.
    3. Agarwal, A., Marwan, N., Rathinasamy, M., Merz, B. and Kurths, J.: Quantifying the role of single stations within homogeneous regions using complex network. https://doi.org/10.1016/j.jhydrol.2018.06.050.
    4. Agarwal, A., Marwan, N., Rathinasamy, M., Ozturk, U., Merz, B. and Kurths, J.: Optimal Design of Hydrometric Station Networks Based on Complex Network Analysis, Hydrol. Earth Syst. Sci. Discuss., 1–21, doi:10.5194/hess-2018-113, 2018.
    5. Shukla, R., Agarwal, A., Sachdeva, K., Kurths, J., and Joshi, P.K: Climate change perception: Analysis of climate change and risk perception among farmer types of Indian Western Himalayas. Climatic Change.https://link.springer.com/article/10.1007/s10584-018-2314-z
    6. Bronstert, A., Agarwal, A., Boessenkool, B., Crisologo, I., Fischer, M., Heistermann, M., Köhn-Reich, L., López-Tarazón, J. A., Moran, T., Ozturk, U., Reinhardt-Imjela, C. and Wendi, D.: Forensic hydro-meteorological analysis of an extreme flash flood: The 2016-05-29 event in Braunsbach, SW Germany, Sci. Total Environ., 630, 977–991, doi:10.1016/j.scitotenv.2018.02.241, 2018.
    7. Ozturk, U., Wendi, D., Crisologo, I., Riemer, A., Agarwal, A., Vogel, K., López-Tarazón, J. A. and Korup, O.: Rare flash floods and debris flows in southern Germany, Sci. Total Environ., 626, 941–952, doi:10.1016/j.scitotenv.2018.01.172, 2018.
    8. Ozturk, U., Marwan, N., Korup, O., Saito, H., Agarwal, A., Grossman, M. J., Zaiki, M., and Kurths, J.: Complex networks for tracking extreme rainfall during typhoons, Chaos. https://aip.scitation.org/doi/pdf/10.1063/1.5004480
    9. Rathinasamy, M., Agarwal, A., Parmar, V., Khosa, R., & Bairwa, A. (2017). Partial wavelet coherence analysis for understanding the standalone relationship between Indian Precipitation and Teleconnection patternsarXiv preprint arXiv:1702.06568.
    10. Agarwal, A., Maheswaran, R., Kurths, J., & Khosa, R. (2016). Wavelet Spectrum and self-organizing maps-based approach for hydrologic regionalization-a case study in the western United StatesWater Resources Management30(12), 4399-4413.
    11. Agarwal, A., Maheswaran, R., Sehgal, V., Khosa, R., Sivakumar, B., & Bernhofer, C. (2016). Hydrologic regionalization using wavelet-based multiscale entropy methodJournal of Hydrology538, 22-32.
    12. Bronstert, A., Agarwal, A., Boessenkool, B., Fischer, M., Heistermann, M., Köhn-Reich, L., Moran T., Wendi, D. (2017): The flood of Braunsbach on May 29, 2016 - the origin, course, and damage of a "centuries event". Part 1: Meteorological and hydrological analysis- hydrology & water management, 61, (3), 150-162; DOI: 10.5675 / HyWa_2017,3_1
    13. Vogel, K., Ozturk, U., Riemer, A., Laudan, J., Sieg, T., Wendi, D., Agarwal, A., Rozer, V., Korup, O., Thieken, A (2017): The flood of Braunsbach on May 29, 2016 - the origin, course and damage of a "centuries event". Part 2: Geomorphological processes and damage analysis - Hydrology & Water Management, 61, (3), 163-175; DOI: 10.5675 / HyWa_2017,3_2.

    Conference proceeding and workshop  presentations

    1. Ankit Agarwal, Levke Caesar, Norbert Marwan, Rathinasamy Maheswaran, Bruno Merz, Juergen Kurths: Detection of short- and long-range teleconnections in SST patterns on different time scales. European Geophysical Union 2019; 04/2019.

    2. Shukla, R., Agrawal, A., Sachdeva, K., Kruths, J., Joshi, P. K. 2019. Perception of climate change and its impact among Himalayan farmers. European Geophysical Union 2019, Vienna.  https://meetingorganizer.copernicus.org/EGU2019/EGU2019-6072.pdf

    3. Ankit Agarwal, Norbert Marwan, Rathinasamy Maheswaran, Bruno Merz, Ravi Krishnan Juergen Kurths: Unravelling Regionwise Teleconnections of Indian Rainfall Using Event Synchronization-Based Multiscale Nonlinear Method. Asian Oceanic Geosciences meeting-2018; 06/2018.

    4.  Ankit Agarwal, Norbert Marwan, Rathinasamy Maheswaran, Bruno Merz, Juergen Kurths, R: Complex network-based approach for identification of influential and expandable station across rainfall network. European Geophysical Union 2018; 04/2018
    5. Ankit Agarwal, Norbert Marwan, Rathinasamy Maheswaran, Bruno Merz, Juergen Kurths, R: Multiscale complex network analysis: An approach to study spatiotemporal rainfall pattern in south Germany. European Geophysical Union 2017; 04/2017
    6. Ankit Agarwal, Norbert Marwan, Rathinasamy Maheswaran, Ugur Ozturk, Bruno Merz, Juergen Kurths: Multiscale event synchronization analysis for unravelling climate processes: A wavelet-based approach. American Geophysical Union 2016, San Francisco; 12/2016
    7. Jonas Laudan, Ugur Öztürk, Tobias Sieg, Dadiyorto Wendi, Adrian Riemer, Ankit Agarwal, Viktor Rözer, Oliver Korup, Annegret Thieken, and Kristin Vogel. A retrospective analysis of the flash flood in Braunsbach on May 29th, 2016. EGU2017-13464, European Geophysical Union 2016, Vienna; 04/2017.

    8. Axel Bronstert, Agarwal Ankit, Boessenkool Berry, Fischer Madlen, Heistermann Maik, Köhn-Reich Lisei, Moran Thomas, and Wendi Dadiyorto. The Braunsbach Flashflood of May 29, 2016: A forensic analysis of the meteorological origin and the hydrological development an extreme hydro-meteorological event. EGU2017-2942, European Geophysical Union 2016, Vienna; 04/20167.

    9. Ankit Agarwal, Norbert Marwan, Rathinasamy Maheswaran, Ugur Ozturk, Bruno Merz, Juergen Kurths: Multiscale event synchronization measure: A wavelet-based approach. Perspectives in Nonlinear Dynamics 2016, Humboldt-University Berlin, Germany; 07/2016, DOI:10.13140/RG.2.2.16589.64485
    10. Ugur Ozturk, Ankit Agarwal, Norbert Marwan, Jürgen Kurths, Oliver Korup: Spatiotemporal Pattern of Seasonal Extreme Rainfall over Japan Using Complex Networks. International school and conference of network science, Seoul 2016, South Korea; 05/2016
    11. Ankit Agarwal, Rathinasamy Maheswaran, Juergen Kurths, Rakesh Khosa: Wavelet Spectrum and Self-Organizing Maps-Based Approach for Hydrologic Regionalization -a Case Study in the Western United States. Water Resources Management, European Geophysical Union-2016; 04/2016
    12. Ankit Agarwal, Maheswaran Rathinasamy, Rakesh Khosa: Hydrologic Regionalization Using Wavelet-based Multi-Scale Entropy Method. American Geophysical Union-2015, San Fransisco, USA; 12/2015, DOI:10.13140/RG.2.1.2155.5289

    Book chapters

    1. Agarwal, A., Marwan, N., Ozturk, U., and  Rathinasamy, M.: Unfolding Community Structure in Rainfall Network of Germany Using Complex Network-Based Approach.  Water Resources and Environmental Engineering II
    2. Chaudhary, S., Agarwal, A., and Nakamura, T.: Rainfall Projection in Yamuna River Basin, India, Using Statistical Downscaling. Water Resources and Environmental Engineering II

    Technical reports

    1. Agarwal, A., B. Boessenkool, M. Fischer, I. Hahn, L. Köhn, J. LAUDAN, T. Moran, U. Oztürk, A. Riemer, V. Rözer, T. Sieg, K. Vogel, D. Wendi, A Bronstert, A. THIEKEN (2016): Die Sturzflut in Braunsbach, Mai 2016 - Eine Bestandsaufnahme und Ereignisbeschreibung. Taskforce im Rahmen des DFG-Graduiertenkollegs Natural Hazards and Risks in a Changing World, Universität Potsdam. 20 S. (in German, PDF-File).  http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-394881

    Scientific blog

    1. Ankit Agarwal. Quantifying the Roles of Single Rain Gauges within Homogeneous Regions of a Rainfall Network. Scientific Trends 2018.
    2. Roopam Shukla and Ankit Agarwal. Do Perceptions of Climate Change and its Impacts Differ Among Farmers in Indian Western Himalayas? Scientific Trends 2019.

    Thesis

    1. Ankit Agarwal. "Unravelling spatio-temporal climatic patterns using multi-scale complex network." Ph.D. diss., University of Potsdam, Potsdam, Germany, 2018. DOI: 10.25932/publishup-42395
    2.  Ankit Agarwal. "Hydrologic Regionalization Using Wavelet based Multiscale Entropy Technique." M.Tech, Indian Institute of Technology, DELHI, 2015. DOI: 10.13140/RG.2.1.2175.5287

    Toolbox and codes

    Climate Downscaling Toolbox

    Projects

     

    • Multivariate cross-scale dynamics

    • Climate change perception- A case study in Indian Western Himalayans

    • Complex Network analysis based on event synchronization of Natural hazard

    • Task force Braunsbach flash flood-2016

    • Hydrologic regionalization using wavelet-based multiscale entropy technique 

    • Wavelet spectrum and self-organizing maps-based approach for hydrologic regionalization -A case study in the western United States

    Awards

    Awarded “start-up funding for 9 months by DFG German Research Foundation to pursue a postdoc at Potsdam Institute for Climate Impact Research, Germany.

    DAAD Scholarship Award for being department topper in IIT-Delhi to complete research work in Technical University-Dresden (Germany).

    Singapore University of Technical design (SUTD) Graduate Award Fellowship.

    Natural Hazards and Risk in a Changing world (NatRiskChange) Graduate school fellowship funded by DFG.

    Ministry of Human Resources and Development Fellowship (A Fellowship by Indian Govt. for higher education) to pursue Master of Technology at IIT-Delhi, India. 
     

    Teaching

    Hydrological measurement (discharge and soil conductivity) technique.

    MATLAB applications in Civil Engineering.

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