Sciences and Exploration Directorate

Sriharsha Madhavan

(Lead Research Scientist)

Sriharsha Madhavan's Contact Card & Information.
Org Code: 614
Mail Code 614
Greenbelt, MD 20771

Brief Bio

Research scientist and remote sensing expert with over 20 years of experience in academic research and industry support. Subject matter expertise and real world experience in developing, testing and releasing algorithms and applications that use multi-spectral remote sensing data to model atmospheric and topographical conditions. Unique combination of remote sensing engineering, atmospheric science research, instrument calibration and image processing skills.

Research Interests

Sensor Calibration & Applications

Earth Science: Remote Sensing

Remote sensing engineering and scientific applications involving satellite-based retrieval of atmospheric properties; Radiometric calibration of satellite instruments and other aspects of image processing.

Current Projects

Supporting sensor calibration for 5 (NPP-J04) Ozone Mapping Profiler Suite (OMPS)

Remote Sensing

Working as a research scientist for OMPS Nadir and Limb Instruments and Systems development, on the SSAI Support for Atmospheres, Modeling, and Data Assimilation (SAMDA) contract, NNG17HP01C. This task supports development of OMPS Nadir and Limb instruments and systems for JPSS operations. Specific activities include analysis of prelaunch test data, evaluation of results relative to performance requirements, and evaluation of products delivered by the sensor vendor. Specifically tasked to review and analyze data on OMPS radiance and irradiance calibration, bandpass, stray light, and linearity performance.


Lead Research Scientist

Science Systems and Applications Inc. - Lanham

April 2023 - Present

Sensor Calibration Support for 5 JPSS (NPP-J04) -Ozone Mapping Profiler Suite (OMPS) instruments

Sr. Research Scientist

Science Systems and Application Inc. - Lanham

December 2018 - March 2023

Sensor Calibration Support for NPP/N20/J02/J03-Ozone Mapping Profiler Suite (OMPS)

Sr. Research Scientist

Science Systems and Application Inc. - Lanham

September 2017 - November 2018

Working as a Sr. Research Scientist for MODIS / S-VIIRS Level1B product evaluation. The work involves investigating the sensitivity of the immediate Level 1 / 2 science products on the calibration.

Sr. Research Scientist

NOAA STAR Affiliate / Science Systems and Applications Inc. - College Park

February 2016 - August 2017

Working as a Sr. Research Scientist for the JPSS OMPS Calibration and Validation. Supporting the activities relating to Sensor Data Record for OMPS, J01 pre-launch testing. Major contributions are mapping the dark measurements for the Nadir Mapper and Nadir Profiler from the raw counts and using the spacecraft diary information; Building of comparison tools to evaluate the geophysical changes between various software and look up table changes. Also contributed to various aspects of instrument monitoring and anomaly detection for OMPS sensor in the Integrated Calibration and Validation System (ICVS) team.

Sr. Instrument Engineer

Science Systems and Application Inc. - Lanham

December 2006 - January 2016

Working as a Sr. calibration analyst / Sr. scientific programmer. Task description: Support the design and development or analysis of active or passive remote sensing instrument systems, instrument electronics, GSE, or systems for test and calibration of space-flight sensors. Support the development of the state-of-the-art systems to validate pre- and post- flight instrument calibration and performance with respect to quality of geophysical parameter retrieval. Design, develop, test and implement software for instrument operations and data analyses. Emphasis was on MODIS instruments aboard the EOS Terra and Aqua Missions.

Graduate Research Assistant

South Dakota State University - Brookings

August 2002 - November 2006

1. Involved in the radiometric characterization Landsat thematic mapper (TM), and development of the Landsat 4/5 Image Assessment System (TMIAS); grant funded by USGS-EROS Data Center. Tasks included data analysis, image ingest, algorithm development, software development, testing and verification. Focus area: Modeling the performance of the detectors in the TM and make suitable corrections for the detectors. These corrections were used to improve the image quality. The corrections removed residual striping in images, thereby restoring the image captured by the instrument.

2. Project name- ALI Image Assessment System (ALIAS). The work involved radiometric characterization of all detectors in the multispectral / panchromatic bands. My focus area in the project was related to balancing the relative response of the silicon chip assemblies. The work was a joint effort with USGS-EROS Data Center and NASA-GSFC.

3. Working knowledge and managed field campaigns on MTF (Spatial) Characterization of QuickBird and IKONOS Satellite Sensors, grant funded by NASA-Stennis Space Center.

Teaching Experience

  • Invited guest lectures on ‘Sensor Calibration’ for course titled Physical Principles of Remote Sensing at George Mason University (Fall 2014, 2016, 2022 & 2023)
  • Teaching Assistant - Lecturer and Lab assistant for course titled “Basic Electricity and Electronics”. Lab assistant for course titled “Electric Circuit Theory-I” (South Dakota State University 2002-2003)


Doctor of Philosophy (Earth Systems and GeoInformation Sciences), George Mason University, 2016

Master of Science (Electrical Engineering), South Dakota State University, 2004

Bachelor of Engineering (Electrical and Electronics Engineering), University of Madras, 2001.  

Professional Societies

SPIE - The International society for optics and photonics


2012 - 2015

Professional Service

  • Currently serving as a topical advisor in online remote sensing MDPI (2021- )
  • Served as a reviewer for Journal of Atmospheric Environment (Elsevier, 2011), Journal of Applied Remote Sensing (SPIE, 2013), Journal of Geophysical Research – Atmospheres (AGU, 2014), American Institute of Physics –Review of Scientific Instruments (AIP, 2016), IEEE Transactions on Geoscience and Remote Sensing (2016), Global Space-based Inter-Calibration System (GSICS) Quarterly Newsletter (2017-present), Remote Sensing / Electronics Journal (MDPI, 2017-present), International Journal of Remote Sensing (Francis and Taylor Publications, 2018)


  1. Recipient of NASA Robert H. Goddard Team Award 2023 - Exceptional Achievement for Science "for outstanding mission-critical support to the pre and post launch calibration/validation of the JPSS-2 satellite".
  2. Performance Award (SSAI, Jun. 2020) in recognition of timely work in creating the critical OMPS JPSS-2 upload tables that establishes baseline instrument operations for prelaunch testing and initial on-orbit use for all three OMPS sensors: the Nadir Mapper, the Nadir Profiler, and the Limb Profiler.
  3. Recipient of NASA Terra Mission's 2019 Pecora Team Award: Certificate of Recognition.
  4. Performance Award (NOAA / ERT, 2017) for representing on behalf of NOAA SMCD at the STEM Expo for Girl Power hosted by John Hopkins University - Applied Physics Laboratory.
  5. Performance Award (SSAI, Sep. 2016) for excellent performance in Satellite Meteorology and Climatology Division (SMCD) of NOAA STAR.
  6. Performance Award (SSAI, Sep. 2016) & NASA Group Achievement Award (nominated in 2015): For 20 years of expert and dedicated characterization of MODIS instruments on Terra and Aqua leading to unprecedented achievement in understanding Earth processes.
  7. Recipient of NASA Hydrospheric and Biospheric Sciences (HOBI) 2012 award for “scientific achievement” in developing the collection 6 Level 1B software that significantly improves the MODIS calibrated radiance products.

Selected Publications


2021. "Sensor calibration impacts on dust detection based on MODIS and VIIRS thermal emissive bands." Advances in Space Research 67 (10): 3059-3071 [10.1016/j.asr.2021.02.035] [Journal Article/Letter]

2017. "Saharan dust detection using multi-sensor satellite measurements." Heliyon 3 (2): e00241 [10.1016/j.heliyon.2017.e00241] [Journal Article/Letter]

2016. "Noise Characterization and Performance of MODIS Thermal Emissive Bands." IEEE Transactions on Geoscience and Remote Sensing 54 (6): 3221-3234 [10.1109/tgrs.2015.2514061] [Journal Article/Letter]

2016. "Evaluation of VIIRS and MODIS Thermal Emissive Band Calibration Stability Using Ground Target." Remote Sensing 8 (2): 158 [10.3390/rs8020158] [Journal Article/Letter]

2015. "Moderate Resolution Imaging Spectroradiometer on Terra and Aqua Missions." Qian/Optical Payloads for Space Missions 53-89 [10.1002/9781118945179.ch3] [Article in Book]

2015. "Investigation of the Electronic Crosstalk in Terra MODIS Band 28." IEEE Transactions on Geoscience and Remote Sensing 53 (10): 5722-5733 [10.1109/tgrs.2015.2428212] [Journal Article/Letter]

2015. "Terra and Aqua MODIS Thermal Emissive Bands On-Orbit Calibration and Performance." IEEE Transactions on Geoscience and Remote Sensing 53 (10): 5709-5721 [10.1109/tgrs.2015.2428198] [Journal Article/Letter]

2014. "Evaluation of Radiometric Improvements With Electronic Crosstalk Correction for Terra MODIS Band 27." Geoscience and Remote Sensing, IEEE Transactions on 52 (10): 6497 - 6507 [10.1109/TGRS.2013.2296747] [Journal Article/Letter]

2014. "Terra MODIS Band 27 Electronic Crosstalk Effect and Its Removal." Geoscience and Remote Sensing, IEEE Transactions on 52 (3): 1551-1561 [10.1109/TGRS.2013.2252180] [Journal Article/Letter]

2013. "Terra and Aqua moderate-resolution imaging spectroradiometer collection 6 level 1B algorithm." Journal of Applied Remote Sensing 7 (1): 073557 [10.1117/1.JRS.7.073557] [Journal Article/Letter]


2014. "MODIS instrument operation and calibration improvements." Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International 1385-1388 [10.1109/IGARSS.2014.6946693] [Proceedings]

2008. "Comparison Study between MODIS Terra and Aqua using Level-2 Aerosol Product for AOT Retrieval over Ocean." IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium 3 III-515 - III-518 [10.1109/IGARSS.2008.4779397] [Other]

Talks, Presentations and Posters


Guest Lecture

November 31, 2023

Invited guest lecture on ‘Sensor Calibration’ for course titled Physical Fundamentals of Remote Sensing at George Mason University

Guest Lecture

December 1, 2022

Invited guest lecture on ‘Sensor Calibration’ for course titled Physical Fundamentals of Remote Sensing at George Mason University

Guest Lecture

December 1, 2016

Invited guest lecture on ‘Sensor Calibration’ for course titled Physical Principles of Remote Sensing at George Mason University