1. Gururaj, P., Shetty, A. &Umesh, P. (2022). ―Surface soil moisture modelling using C- band SAR observations at different stages of agricultural crops‖. Modelling Earth Systems and Environment. https://doi.org/10.1007/s40808-022-01600-6
2. Gururaj, P.,Umesh, P. & Shetty, A. (2022)―Evaluation of surface soil moisture models over heterogeneous agricultural plots using L-band SAR observations‖. Geocarto International, Taylor and Francis. DOI: 10.1080/10106049.2022.2032398.
3. Gururaj, P., Umesh, P. & Shetty, A. (2021).―Assessment of surface soil moisture from ALOS PALSAR-2 in small-scale maize fields using polarimetric decomposition technique‖. Acta Geophysica, 69, 579–588. https://doi.org/10.1007/s11600-021-00557-x.
4. Gururaj, P., Umesh, P. & Shetty, A. (2021).―Modeling of surface soil moisture using C- band SAR data over bare fields in the tropical semi-arid region of India‖. Applied Geomatics, 13, 555-564.https://doi.org/10.1007/s12518-021-00370-7.

1. Hrushikesh. R, A. A. Pathak and G. Punithraj (2023) "Quantifying Surface Soil Moisture Variability Through Synergistic Applications of SAR and Machine Learning Techniques," 2023 IEEE India Geoscience and Remote Sensing Symposium (InGARSS), Bangalore, India, pp. 1-4, doi: 10.1109/InGARSS59135.2023.10490387.
2. B. S. Pavithra, G. Punithraj and A. A. Pathak, (2023) "Flood Hazard Mapping Using GIS-Enhanced Multi-Criteria Decision Analysis In Kushalnagara Taluk, India," 2023 IEEE India Geoscience and Remote Sensing Symposium (InGARSS), Bangalore, India, pp. 1-4, doi: 10.1109/InGARSS59135.2023.10490352.
3. R. Hrushikesh, P. Gururaj and A. A. Pathak (2023) "Flood Frequency Analysis and Assessment of Submergence Level for the Mathikere Catchment - A Flood Resilient Region in Bengaluru," 2023 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Bangalore, India, 2023, pp. 1-6, doi: 10.1109/CONECCT57959.2023.10234747.
4. Gururaj P., Umesh P., Sara P.E.K., Shetty A. (2022) Top Surface Soil Moisture Retrieval Using C-Band Synthetic Aperture Radar over Kudremukh Grasslands. In: Jha R., Singh V.P., Singh V., Roy L.B., Thendiyath R. (eds) Hydrological Modeling. Water Science and Technology Library, vol 109. Springer, Chap. https://doi.org/10.1007/978-3- 030-81358-1_4
5. Punithraj G., Pruthviraj U., Shetty A. (2020) ―Surface Soil Moisture Retrieval Using C- Band Synthetic Aperture Radar (SAR) over Yanco Study Site, Australia—A Preliminary Study‖. In: Ghosh J., da Silva I. (eds) Applications of Geomatics in Civil Engineering. Lecture Notes in Civil Engineering, Vol 33. Springer, Singapore. DOI: https://doi.org/10.1007/978-981-13-7067-0_8.
6. Punithraj Gururaj, Liya Mary, Pruthviraj Umesh and Amba Shetty (2020) "Quantitative retrieval of surface soil moisture using ALOS PALSAR-2 polarimetric data in small scale farm fields" National conference on innovative research advances in engineering applications and processes, Jyothy institute of technology Bangalore, 28 Aug 2020.
7. Liya Mary,  Punithraj  G, Pruthviraj  U  and  Amba  Shetty,  (2020)  ―Rice  crop  monitoring using C-band synthetic aperture radar data. New and effective innovations, technologies and key challenges, 30-31, Jan, NITK, pp-32.
8. Gururaj, P., Umesh, P., and Shetty, A. (2020) Assessment of surface soil moisture distribution across small scale tomato fields using L band SAR data, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-623, https://doi.org/10.5194/egusphere-egu2020-623.
9. Punithraj Gururaj, PruthvirajUmesh, Amba Shetty (2019) "Assessment of spatial variation of soil moisture during maize growth cycle using SAR observations," Proc. SPIE 11149, Remote Sensing for Agriculture, Ecosystems, and Hydrology XXI, 1114916 (21 October 2019); DOI: 10.1117/12.2532953.
10. Punithraj G, Pruthviraj. U and Amba Shetty (2017) "Evaluation of Synergistic use of Sentinel-1 and Landsat data for land use/land cover classification" 22nd International Conference Hydraulics, Water Resources & Coastal Engineering, 21-23 Dec, LDCE, Ahmedabad, pp-132.
11. Ravi  Kumar  A.S,  Mohan  Kumar  and  Punithraj  G  (2016)  ―Identification  of  Potential Sites for Rain Water Harvesting Structures Using RS, GIS and MIF Techniques’’ International Journal of Innovative Research in Science and Engineering (ISSN: 2454-9665) Volume 02, Issue 05, pp 802-811.

Hydrological Modelling and Field Studies

SAR Interferometry in landslides and subsidence mapping

Flood and Drought risk management studies

Applications of Radar Remote Sensing in Agriculture and Urban studies

Supervised and Unsupervised Polarimetric SAR Image Classification