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Saswati Das

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Address:

4800 Oak Grove Drive

M/S 233-200

Pasadena, CA 91109

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Curriculum Vitae:

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Member of:

Tropospheric Composition

Postdoctoral Researcher

Biography

Saswati Das recently graduated with a Ph.D. in Electrical Engineering from Virginia Tech. During her Ph.D., she worked on studying the chemistry and composition of the middle atmosphere. Broadly, her research involved validating satellite data measurements and studying Sudden Stratospheric Warming events and their impact on atmospheric composition. Saswati primarily worked with data from the Solar Occultation for Ice Experiment (SOFIE) instrument on the Aeronomy of Ice in the Mesosphere(AIM) spacecraft with comparative analysis using other satellite, model, and ground station datasets. During her Ph.D., she worked on a sounding rocket mission to study the vertical profile of nitric oxide during the polar night and a balloon-based instrument named GLO (GFCR (Gas Filter Correlation Radiometry) Limb Solar Occultation) developed for a mission concept that intends to quantify the role of the Upper Troposphere and Lower Stratosphere in climate change.

Saswati is a postdoctoral fellow and a part of the Tropospheric Composition Group. She supports activities related to the validation and scientific utilization of satellite measurements of carbon dioxide from the Orbiting Carbon Observatory (OCO) missions (OCO-2 and OCO-3) against independent datasets (Total Carbon Column Observing Network (TCCON) and EM27/SUN).

Education

  • PhD., Electrical Engineering, Virginia Tech (2022)
  • M.S., Electrical Engineering, Virginia Tech (2019)
  • B.Tech., Electronics and Telecommunication Engineering, KIIT University, India (2017)

Professional Experience

  • Jet Propulsion Laboratory - Postdoctoral Researcher (November 2022 - present)
  • Virginia Tech -
    • Graduate Research Assistant, Center for Space Science and Engineering Research (ECE Department) (Summer 2019 – Summer 2022)
    • Graduate Teaching Assistant, ECE Department (Spring 2019)
    • Graduate Research Assistant, Center for Space Science and Engineering Research (ECE Department) (Fall 2018)
    • Graduate Teaching Assistant, Physics Department (Spring 2018)
  • KIIT University, India - Undergraduate Researcher, Optics and Photonics (2015 – 2017)

Research Interests

  • Remote Sensing of the atmosphere.
  • Instrumentation for Remote Sensing.

Selected Awards

  • Best Seminar in Space Science Award, 2021-2022 Seminar Series – Center for Space Science and Engineering Research, Virginia Tech.

Selected Publications

Journal Publications​

  1. Bailey, Scott M., et al. "Sounding Rocket Observation of Nitric Oxide in the Polar Night.", Journal of Geophysical Research: Space Physics: e2021JA030257. https://doi.org/10.1029/2021JA030257​
  2. Das, Saswati, et al. " Validation of Version 1.3 Ozone Measured by the SOFIE Instrument. " (Under Review – AGU Earth and Space Science)​
  3. Das, Saswati, et al. " Atomic Oxygen in the Mesopause Region Using SOFIE Measurements." (Scheduled for submission to the Journal of Geophysical Research later this year)​
  4. Das, Saswati, et al. " Sudden Stratospheric Warming-Triggered Composition Response of the Stratosphere, Mesosphere, and Lower Thermosphere." (Under Review – AGU Journal of Geophysical Research: Atmospheres)​
  5. Das, Saswati, et al. " Ozone Enhancement During the 2019 Sudden Stratospheric Warming in the Southern Hemisphere from Multi-Instrument Analysis." (under review by co-authors)​

Conference Publications

  1. Kumar, Pranaw, Madhusmita Senapati, and Saswati Das. "Designing photonic crystal fiber for optical sensor and medical application and suitable for wavelength division multiplexing systems." 2016 10th International Conference on Intelligent Systems and Control (ISCO). IEEE, 2016.
  2. Kumar, Pranaw, Saswati Das, and Surender Singh. "Highly Birefringent with Low Dispersion Photonic Crystal Fiber doped with Crown glass for sensor and non-linear applications." 2016 International Conference on Innovations in Information Embedded and Communication Systems (ICIIECS).

Conference Presentations ​

  1. Das, Saswati, et al. “Exploring the Spatial and Temporal Structure of Ozone in the Mesosphere and Lower Thermosphere: An Investigation of the Sudden Stratospheric Warming Events of 2009 – 2013”, 2020 American Geophysical Union Conference.​
  2. Bailey, Scott M, et al. “Sounding Rocket Observation of Lower Thermospheric Nitric Oxide in the Polar Night”, 2020 American Geophysical Union Conference.​
  3. Das, Saswati, et al. “A Multi Tracer Analysis to Study the Chemical Composition Changes associated with the 2019 Sudden Stratospheric Warming Dynamics using SOFIE Observations”, 2021 Coupling, Energetics, and Dynamics of Atmospheric Regions Workshop.​
  4. Das, Saswati, et al. “Temporal Variation of Upper-Mesospheric Atomic Oxygen Using SOFIE Measurements”, 2021 American Geophysical Union Conference.​
  5. Das, Saswati, et al. “Sudden Stratospheric Warming-Triggered Composition Response of the Mesosphere-Lower Thermosphere- Stratosphere”, 2021 American Geophysical Union Conference.​
  6. Das, Saswati, et al. “Enhancement in Antarctic Ozone During the 2019 Sudden Stratospheric Warming from SOFIE”, 2022 American Meteorological Society 102nd Annual Meeting.​
  7. Das, Saswati, et al. “Composition Response of the Mesosphere-Lower Thermosphere-Stratosphere During 2019 Arctic Late-Winter”, 2022 American Meteorological Society 102nd Annual Meeting.​
  8. Das, Saswati, et al. “Investigation of the Ozone Enhancement during the 2019 Sudden Stratospheric Warming in the Southern Hemisphere”, 2022 European Geosciences Union General Assembly.​
  9. Das, Saswati, et al. “SMLT Ozone from SOFIE and Other Instruments – Validation and Seasonal Climatology”, 2022 Coupling, Energetics, and Dynamics of Atmospheric Regions Workshop.​
  10. Das, Saswati, et al. “Temporal Variation of Atomic Oxygen in the Upper Mesosphere from SOFIE”, 2022 Coupling, Energetics, and Dynamics of Atmospheric Regions Workshop.​
  11. Das, Saswati, et al. “Sudden Stratospheric Warming-triggered composition response of the Stratosphere-Mesosphere-Lower Thermosphere from SOFIE and ACE.”, 2022 Coupling, Energetics, and Dynamics of Atmospheric Regions Workshop.​
  12. Das, Saswati, et al. “SMLT Ozone from SOFIE – Validation and Seasonal Climatology”, 2022 American Geophysical Union Conference (forthcoming).​

20. Das, Saswati, et al. “Investigation of the Southern Hemispheric Ozone Enhancements during the 2019 Sudden Stratospheric Warming”, 2022 American Geophysical Union Conference (forthcoming).​

Projects

OCO-2 - Orbiting Carbon Observatory
OCO-3 - Orbiting Carbon Observatory 3