Journal ArticleDOI
Prediction of convective events using multi-frequency radiometric observations at Kolkata
TLDR
In this article, the effectiveness of nowcasting convective activities using a microwave radiometer has been examined for Kolkata (22.65° N, 88.45° E), a tropical location.About:
This article is published in Atmospheric Research.The article was published on 2016-03-01. It has received 26 citations till now. The article focuses on the topics: Nowcasting.read more
Citations
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Journal ArticleDOI
A random forest algorithm for nowcasting of intense precipitation events
TL;DR: In this article, a random forest based machine learning algorithm is tested for nowcasting of convective rain with a ground-based radiometer and the results indicate that the proposed model is very sensitive to the boundary layer instability as indicated by the variable importance measure.
Journal ArticleDOI
Nowcasting of deep convective clouds and heavy precipitation: Comparison study between NWP model simulation and extrapolation
TL;DR: In this article, an evaluation of convective cloud forecasts performed with the numerical weather prediction (NWP) model COSMO and extrapolation of cloud fields is presented using observed data derived from the geostationary satellite Meteosat Second Generation (MSG).
Journal ArticleDOI
East-west coastal asymmetry in the summertime near surface wind speed and its projected change in future climate over the Indian region
TL;DR: In this paper, the authors investigated the behavior of various meteorological parameters during 1981-2010 to obtain any asymmetric variability of summertime near surface wind over Indian coastal boundaries, and found that no significant changes were obtained in the trends of surface pressure, surface relative humidity, 2-metre temperature and surface precipitation.
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Evaluating the impact of climate change in threshold values of thermodynamic indices during pre-monsoon thunderstorm season over Eastern India
TL;DR: In this article, the authors analyzed thermodynamic indices variation over three sites of eastern Indian region: Bhubaneswar, Kolkata and Ranchi, associated with pre-monsoon thunderstorms for 20-year period (1987-2006) for Bhubaneh and Kolkatha and 15-years (1996-2010) for Ranchi.
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Retrieval of atmospheric properties with radiometric measurements using neural network
Rohit Chakraborty,Animesh Maitra +1 more
TL;DR: In this paper, three retrieval techniques have been used to obtain the temperature and relative humidity profiles from brightness temperatures, namely; piecewise linear regression, feed forward neural network and neural back propagation network.
References
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Journal ArticleDOI
Application of a ground-based, multi-channel microwave radiometer to the alerting of low-level windshear at an airport
Pak Wai Chan,Y.F. Lee +1 more
TL;DR: In this article, a ground-based, 14-channel microwave radiometer (7 oxygen channels and 7 water vapour channels) has been in use at the Hong Kong International Airport since May 2008.
Journal Article
An Application of Brightness Temperature Received from a Ground-based Microwave Radiometer to Estimation of Precipitation Occurrences and Rainfall Intensity
TL;DR: In this article, the predictability of precipitation occurrences and the estimation of rainfall intensity were investigated by using the brightness temperature (TB) of the ground-based microwave radiometers (MWR).
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Climatic Trends in Hail Precipitation in France: Spatial, Altitudinal, and Temporal Variability
Lucía Hermida,José Luis Sánchez,Laura López,Claude Berthet,Jean Dessens,Eduardo García-Ortega,Andrés Merino +6 more
TL;DR: There was a high concentration of hailpads with positive trend near the Pyrenees, probably owing to orographic effects, and if the authors apply cluster analysis with the Mann-Kendall values, the spatial variability is accentuated for stations at higher altitude.
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Relationship of convective precipitation with atmospheric heat flux — A regression approach over an Indian tropical location
TL;DR: In this paper, a long-term observation (1979-2008) of the increase in convective precipitation in relation to the latent and sensible heat fluxes on a tropical location, Kolkata, has been investigated in the present study.
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Sharp depletion of atmospheric refractive index associated with Nor’wester over Gangetic West Bengal: a possible method of forecasting Nor’wester
TL;DR: In this article, the authors present the nature of the variation of refractive index of atmospheric medium with time and altitude before, during and after the onset of thunderstorms over Gangetic West Bengal during the pre-monsoon period.