Mathew, T. A., Pillai, D., Sukumaran, J., Deshpande, M. V., Buchwitz, M., Schneising, O., Thilakan, V., Ravi, A., Kanakkassery, S. B., Vinod, A. J., Sijikumar, S., Girach, I. A., and Babu, S. S.: Leveraging TROPOMI observations and WRF-GHG modeling towards improving methane emission assessments in India, Atmos. Chem. Phys., 26, 4453–4477, https://doi.org/10.5194/acp-26-4453-2026, 2026.
Yadav, M., Pillai, D., & Deshpande, M. (2026). Towards tracking wetland methane emissions over India using multi-satellite measurements and modeling: part A (natural wetlands). Environmental Research Climate. https://doi.org/10.1088/2752-5295/ae4b5f
Mathew, T.A., Ravi, A., Pillai, D., Lekshmi, S., Sukumaran, J., Manoj, M.G., Thilakan, V., Venkat Ratnam, M. and Jain, C.D., 2025. Assessing the accuracy of meteorological transport model ensemble towards estimating Indian carbon fluxes. Environmental Research: Climate., http://dx.doi.org/10.1088/2752-5295/adffa7, 2025
Ravi A, Pillai D, Deshpande MV. Declining net carbon sequestration of west-central Indian ecosystem in response to frequently occurring drought: Inference from satellite measurements and modeling. Ecological Informatics. 2025 Aug 18:103386, https://doi.org/10.1016/j.ecoinf.2025.103386, 2025
Ravi, A., Pillai, D., Gerbig, C., Sitch, S., Zaehle, C., Thilakan, V., Jha, C, S., Mathew,T A: Using satellite-based Sun-induced chlorophyll flourescence and spectral reflectance for improving terrestrial CO2 flux estimates of India, Environmental Research: Ecology/Volume 4,Number 1, https://doi.org/10.1088/2752-664X/adabed, 2025
Sukumaran, J., Pillai, D., Thilakan, V., Lekshmi, S., Udayakumar, G., Mathew,T A., Ravi, A., Manoj MG: How critical is the accuracy of the atmospheric transport modeling to improve the urban CO2 emission in India?—A Lagrangian-Based approach, Journal of Geophysical Research: Atmospheres/Volume 129, Issue 13/e2023JD039680, https://doi.org/10.1029/2023JD039680, 2024
Ravi, A., Pillai, D., Thilakan, V., Mathew,T A.:Methodological advancement in deriving primary productivity and ecosystem respiration fluxes across different biomes, MethodsX, 12, 102773, https://doi.org/10.1016/j.mex.2024.102773, 2024
Thilakan, V., Pillai, D., Sukumaran, J., Gerbig, C., Hakkim, H., Sinha, V., Terao, Y., Naja, M. and Deshpande, M.: Potential of using CO2 observations over India in a regional carbon budget estimation by improving the modelling, ACP, 24, 5315–5335, https://doi.org/10.5194/acp-24-5315-2024, 2024
Deshpande, M., Pillai, D., Krishna, V and Jain, M.: Detecting and quantifying zero tillage technology adoption in Indian smallholder systems using Sentinel-2 multi-spectral imagery, International Journal of Applied Earth Observation and Geoinformation, Volume 128, https://doi.org/10.1016/j.jag.2024.103779, 2024
Mathew, T. A., Ravi, A., Pillai, D., Saradambal, L., Kumar, J. S., Gopalakrishnan, M. M., and Thilakan, V.: Evaluating the meteorological transport model ensemble for accounting uncertainties in carbon flux estimation over India, EGUsphere [preprint], Geoscientific Model Development Discussion, https://doi.org/10.5194/egusphere-2023-2334, 2024
Deshpande, M., Kumar, N., Pillai, D., Krishna, V and Jain, M.: Greenhouse gas emissions from agricultural residue burning have increased by 75% since 2011 across India, Science of The Total Environment, Volume 904, https://doi.org/10.1016/j.scitotenv.2023.166944, 2023
Ravi, A., Pillai, D., Gerbig, C., Sitch, S., Zaehle, S., Thilakan, V., and Jha, C. S.: Spatiotemporal variations in terrestrial biospheric CO2 fluxes of India derived from MODIS, OCO-2 and TROPOMI satellite observations and a diagnostic terrestrial vegetation model, EGUsphere [preprint], Biogeosciences Discussion, https://doi.org/10.5194/egusphere-2023-817, 2023
Thilakan, V., Pillai, D., Gerbig, C., Galkowski, M., Ravi, A., and Anna Mathew, T.: Towards monitoring the CO2 source–sink distribution over India via inverse modelling: quantifying the fine-scale spatiotemporal variability in the atmospheric CO2 mole fraction, Atmos. Chem. Phys., 22, 15287–15312, https://doi.org/10.5194/acp-22-15287-2022, 2022.
Deshpande, M., Pillai, D., and Jain, M.: Agricultural burned area detection using an integrated approach utilizing multi spectral instrument based fire and vegetation indices from Sentinel-2 satellite, MethodsX 9 (2022), 101741, https://doi.org/10.1016/j.mex.2022.101741, 2022
Deshpande, M., Pillai, D., and Jain, M.: Detecting and quantifying residue burning in smallholder systems: An integrated approach using Sentinel-2 data, International Journal of Applied Earth Observation and Geoinformation, Volume 108,102761, https://doi.org/10.1016/j.jag.2022.102761, 2022
Vellalassery, A., Pillai, D., Marshall, J., Gerbig, C., Buchwitz, M., Schneising, O., and Ravi, A.: Using TROPOspheric Monitoring Instrument (TROPOMI) measurements and Weather Research and Forecasting (WRF) CO modelling to understand the contribution of meteorology and emissions to an extreme air pollution event in India, Atmos. Chem. Phys., 21, 5393–5414, https://doi.org/10.5194/acp-21-5393-2021, 2021
Kariyathan, T.,Pillai, D., Elias, E. and Mathew, T.A., 2020. On deriving influences of upwind agricultural and anthropogenic emissions on greenhouse gas concentrations and air quality over Delhi in India: A stochastic Lagrangian footprint approach. Journal of Earth System Science, 129(1), pp.1-15, https://doi.org/10.1007/s12040-020-01453-6, 2020
Pillai, D., Buchwitz, M., Gerbig, C., Koch, T., Reuter, M., Bovensmann, H., Marshall, J., and Burrows, J. P.: Tracking city CO2 emissions from space using a high resolution inverse modeling approach: A case study for Berlin, Germany, Atmos. Chem. Phys., 16, 9591–9610, doi:10.5194/acp-16-9591-2016
Reuter, M., Buchwitz, M., Hilker, M., Heymann, J., Schneising, O.,Pillai, D., Bovensmann, H., Burrows, J. P., Bösch, H., Parker, R., Butz, A., Hasekamp, O., O'Dell, C. W., Yoshida, Y., Gerbig, C., Nehrkorn, T., Deutscher, N. M., Warneke, T., Notholt, J., Hase, F., Kivi, R., Sussmann, R., Machida, T., Matsueda, H., and Sawa, Y.: Satellite-inferred European carbon sink larger than expected, Atmos. Chem. Phys. Discuss., 14, 21829-21863, doi:10.5194/acpd-14-21829-2014, 2014.
Buchwitz, M., Reuter, M., Bovensmann, H.,Pillai, D. , Heymann, J. et al.,: Carbon Monitoring Satellite (CarbonSat): assessment of atmospheric CO2 and CH4 retrieval errors by error parameterization, Atmos. Meas. Tech., 6, 3477-3500, doi:10.5194/amt-6-3477-2013, 2013.
Pillai, D., Gerbig, C., Kretschmer, R., Beck, V., Karstens, U., Neininger, B., and Heimann, M.: Comparing Lagrangian and Eulerian models for CO2 transport – a step towards Bayesian inverse modeling using WRF/STILT-VPRM, Atmos. Chem. Phys., 12, 8979-8991, doi:10.5194/acp-12-8979-2012, 2012.
Pillai, D., Gerbig, C., Ahmadov, R., Rödenbeck, C., Kretschmer, R., Koch, T., Thompson, R., Neininger, B., and Lavrié, J. V.: High-resolution simulations of atmospheric CO2 over complex terrain – representing the Ochsenkopf mountain tall tower, Atmos. Chem. Phys., 11, 7445- 7464, doi:10.5194/acp-11-7445-2011, 2011.
Data/Code Publications
Yadav, M., Pillai, D., & Deshpande, M. (2026). Methane Emissions from Natural Wetlands in India (2018–2023) v1.0 [Data set]. Zenodo. https://doi.org/10.5281/zenodo.20505496
Jithin Sukumaran, Dhanyalekshmi Pillai, Vishnu Thilakan, Lekshmi Saradambal, Gokul Udayakumar, Thara Anna Mathew, Aparnna Ravi, Manoj Manguttathil Gopalakrishnan: Atmospheric CO2 simulations over Indian sites using STILT driven by ECMWF meteorology, Zenodo, 2024
Jithin Sukumaran, Dhanyalekshmi Pillai, Vishnu Thilakan, Lekshmi Saradambal, Gokul Udayakumar, Thara Anna Mathew, Aparnna Ravi, Manoj Manguttathil Gopalakrishnan: Atmospheric CO2 simulations over Indian sites using STILT driven by WRF meteorology, Zenodo, 2024
Aparnna Ravi, Thara Anna Mathew, Dhanyalekshmi Pillai: Meteorological simulations and observations for Indian region: Including transport simulations. Zenodo, 2024
Vishnu Thilakan, Dhanyalkeshmi Pillai: Additional Materials for “Potential of using CO2 observations over India in regional carbon budget estimation by improving the modelling system”, Version v1, Zenodo, 2023
Monish Vijay Deshpande, Nitish Kumar, Dhanyalekshmi Pillai, Vijesh V. Krishna, Meha Jain: District-Level Agricultural Residue Burning Emissions (DARBE) in India 2011–2020 v1.3, Zenodo, 2023.
Monish Vijay Deshpande, Dhanyalekshmi Pillai, Meha Jain, Vijesh Krishna: Agricultural Residue Burning Emissions 2019 v1 (Version 1), Zenodo, 2021
Thilakan, V. and Pillai, D.: Representation error in global model CO2 simulations over India, Zenodo, https://doi.org/10.5281/zenodo.4781938, 2021
European/American Geophysical Union conference Publications
Mathew T, A., Pillai, D., Deshpande M, V., Thilakan V., Backer Kanakkassery S.: Assessing the potential of TROPOMI measurements to improve regional methane emission estimates over India. In EGU General Assembly Conference Abstracts 2024 Apr (p. 17288), 2024.
Thilakan, V., Pillai, D., and S Kumar, J.: Evaluation of the performance of regional transport models in simulating CO2 variability over India employing WRF-STILT modelling framework, in: EGU General Assembly 2023, pp. EGU23–10 975, https://doi.org/10.5194/egusphere-egu23-10975, 2023.