Mohar Chattopadhyay
(SENIOR RESEARCH SCIENTIST)
| Email: | mohar.chattopadhyay@nasa.gov |
| Phone: | 301.614.6800 |
| Org Code: | 610.1 |
| Address: |
NASA/GSFC Mail Code 610.1 Greenbelt, MD 20771 |
| Employer: | SCIENCE SYSTEMS AND APPLICATIONS INC |
Brief Bio
Mohar Chattopadhyay is an atmospheric scientist working at the NASA Global Modeling and Assimilation Office in Greenbelt, Maryland, USA for the last 9 years. She is adept at handling large volume of satellite and conventional data, their evaluation, model development, data assimilation, large-scale climate data analysis and climate variability. Her primary focus is on the development of reanalysis system based on Goddard Earth Observing System (GEOS), MERRA-21C. She is a shilled numerical modeler with work experience in New Zealand, Australia and the USA. Mohar has worked with numerous modeling systems including UKMO’s UM, MM5/WRF and Australian Bureau of Meteorology (BoM) models GASP/LAPS and ACCESS model and 4DVAR data assimilation systems. She has worked with the CSIRO's Cubic Conformal Model (CCAM) for climate simulation. More recently, Mohar has worked at NOAA/NESDIS/STAR/JCSDA on Cloudy Radiance assimilation and Microwave Integrated Retrieval Systems (MiRS). She obtained her doctorate degree in Atmospheric Physics from the University of Canterbury, Christchurch, New Zealand in 2003.
Positions/Employment
Lead Research Scientist
Science Systems And Applications INC - NASA/GSFC, Greenbelt , MD 20771, USA
January 2016 - Present
· Preparation, assimilation and validation of observations for NASA reanalysis systems: Goddard Earth Observation System for Instrument Teams (GEOS-IT) and Modern-Era Retrospective analysis for Research and Applications, 21st Century (MERRA-21C)
· Assimilation of commercial and non-commercial GNSS RO bending angle data in NASA systems
· System assessment and validation of pre-operational version of NASA GEOS Atmospheric Data Assimilation System
· Evaluation of hurricane tracks and their statistical analysis for NASA GEOS operational model
· Analysis, evaluation and assimilation of historical and novel conventional observations (GNSS RO, Atmospheric Motion Vectors and Surface Pressure) and satellite radiances (AVHRR and AMSU-A).
Senior Staff Scientist
AER Inc. at NOAA/STAR/JCSDA - College Park, Maryland, USA
July 2014 - December 2015
- Cloudy Radiance Data Assimilation
- Microwave Integrated Retrieval System (MiRS)
Research Scientist
Commonwealth Scientific and Industrial Research Organization (CSIRO) - Aspendale, Victoria, Australia
August 2009 - June 2014
- Tropical Cyclone Research based on large scale data analysis and regressions to build TC index for the South Pacific region
- Regional Climate Modelling based on model simulations and analysis
- Renewable energy assessment using high resolution Regional Climate Model simulation: model implementation, development and product for renewable energy assessment
Data Assimilation Scientist
Australian Bureau of Meteorology (BoM) - Melbourne, Victoria, Australia
July 2005 - July 2009
- 4D Var Data Assimilation in BoM’s ACCESS model: model development, 4DVar Data assimilation, pre-operational setup.
- Development of a high resolution model for BoM’s wind energy forecasting system(MALAPS): model development, data assimilation and pre-operational testing
Mesoscale Modeller
Met. Service NZ - Wellington, NZ
January 2002 - December 2004
Education
- 2003 : PhD in Atmospheric Physics, University of Canterbury, Christchurch, NZ
- 1997 : MSc in Physics, University Department of Chemical Technology, University of Mumbai, India
- 1994 : BSc in Physics, University of Mumbai
Awards
- NASA GMAO Peer Award for Scientific Achievement, 2024 as a part of MERRA-21C team
- World Meteorological Day 2010, Bureau Excellence Award presented to the members of ACCESS model development team
- CSIRO Award for Science Excellence 2013: Award presented to the members of ACCESS model development team
Other Professional Information
· Google Scholar Research Items : 43
Citations: 312
h-index : 7
i10-index : 7
https://scholar.google.com/citations?user=BjbNDy4AAAAJ&hl=en
Selected Publications
Refereed
2023. "Direct assimilation of AVHRR satellite radiance measurements in a reanalysis system.", Quarterly Journal of the Royal Meteorological Society, [10.1002/qj.4583] [Journal Article/Letter]
2021. "Assessing Sensitivity of MERRA-2 to AMSU-A in the Upper Stratosphere.", Journal of Atmospheric and Oceanic Technology, 38 (3): 629-643 [10.1175/jtech-d-19-0187.1] [Journal Article/Letter]
2014. "Simulating the climate of South Pacific islands using a high resolution model .", International Journal of Climatology , 35 (6): 1157-1171 [Journal Article/Letter]
2013. "Implementation of the initial ACCESS numerical weather prediction system.", Aust. Meteorol. Oceanogr. Journal, 63 265:284 [Journal Article/Letter]
2012. "On the variability of projected tropical cyclone genesis in GCM ensembles.", Tellus, 64 [DOI: 10.3402/tellusa.v64i0.18696] [Journal Article/Letter]