Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Goutami Chattopadhyay"'
Publikováno v:
Earth Science Informatics. 14:1625-1631
The paper reports a study on the air quality over Kolkata, India during the transition period from post-monsoon to winter. A fuzzy binary relation based approach is implemented to O3, N O2 and P M2 5 and the overall air quality index (AQI). Individua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52dffcf150eb04be9043ac1f810bb175
https://doi.org/10.1007/s12145-021-00625-2
https://doi.org/10.1007/s12145-021-00625-2
Publikováno v:
Iranian Journal of Science and Technology, Transactions A: Science. 45:201-207
The present paper reports a study on the dependence of tropospheric ozone on some of its precursors, namely NOx, PM10, and SO2 during summer monsoon over a highly polluted Kolkata region megacity of India. The intrinsic multicollinearity has been exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c0633de28f20a70eede6c6af58c826b
https://doi.org/10.1007/s40995-020-01007-x
https://doi.org/10.1007/s40995-020-01007-x
Publikováno v:
International Journal of Environmental Science and Technology. 17:4353-4358
The present study endeavors to explore the association between total column ozone (TCO) and surface temperature (ST) over Kolkata, India, during September–November through time series approach. A spectral analysis approach is adopted to investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec494030cf293c8926529fd16e32591e
https://doi.org/10.1007/s13762-020-02763-4
https://doi.org/10.1007/s13762-020-02763-4
Autor:
Sujay Pal, R. Dutta, Sudipta Midya, P. K. Gole, S. Karmakar, S. Hazra, Goutami Chattopadhyay, Upal Saha
Publikováno v:
Indian Journal of Physics. 95:1-9
This paper presents the preliminary results of observation of total lightning characteristics of pre-monsoon thunderstorms of 2018 over Gangetic West Bengal around Kolkata. Mainly, the analysis results of total lightning associated with pre-monsoon m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7b4769f5d0dd8c4797e37848f81189b
https://doi.org/10.1007/s12648-020-01681-y
https://doi.org/10.1007/s12648-020-01681-y
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 184:57-62
The present paper reports a comparative study among two neurocomputing models in the form of Multilayer Perceptron (MLP) models and non-linear regression for the prediction of surface ozone (O3) during pre-monsoon season over Gangetic West Bengal (GW
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43f4fb84e4f2105b4c11f7ade9af1b88
https://doi.org/10.1016/j.jastp.2019.01.008
https://doi.org/10.1016/j.jastp.2019.01.008
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 179:202-205
Work reported in the present paper demonstrates a neurocomputing based predictive model for the average rainfall in India during the season of summer monsoon. Backpropagation method with Conjugate Gradient Descent algorithm has been implemented to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e82d97f9d0951222dd3d0ea26927329d
https://doi.org/10.1016/j.jastp.2018.07.015
https://doi.org/10.1016/j.jastp.2018.07.015
Publikováno v:
Natural Hazards. 93:237-247
An information theoretic approach based on Shannon entropy is adopted in this study to discern the influence of pre-monsoon thunderstorm on some surface parameters. A few parameters associated with pre-monsoon thunderstorms over a part of east and no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5de6324a59d752b225e0ad2bd3bed8d6
https://doi.org/10.1007/s11069-018-3298-8
https://doi.org/10.1007/s11069-018-3298-8
Publikováno v:
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC).
The present study aims to investigate the temporal variability of the solar activity, which is typically measured by the sunspot number (SN). The time series of SN provides the longest existing record of solar activity, and is the best available data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7f0951681f22cb53df454363786e05f
https://doi.org/10.23919/ursiap-rasc.2019.8738322
https://doi.org/10.23919/ursiap-rasc.2019.8738322
Publikováno v:
2019 URSI Asia-Pacific Radio Science Conference (AP-RASC).
Evolution of the ozone layer is significantly influenced by the changes in the climate. By ozone layer one means the lower region of the stratosphere, where the ozone concentration is relatively higher than the other layers. Changes in the transport
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a8b30ee163c1f73c0b5b2cdbe2398e7
https://doi.org/10.23919/ursiap-rasc.2019.8738619
https://doi.org/10.23919/ursiap-rasc.2019.8738619
Autor:
Reetambhara Dutta, Soumyajit Hazra, Prabir Kumar Gole, Subrata Kumar Midya, Sujay Pal, Upal Saha, Goutami Chattopadhyay
We report preliminary results derived from the total lightning detector-cum-mini weather station installed at the Calcutta University during 2016. This detector is a part of Earth Networks Total Lightning Network (ENTLN) operated globally for ground-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1e27c409b35ba922d368ad156eff36e
https://doi.org/10.5194/nhess-2018-178
https://doi.org/10.5194/nhess-2018-178
