Proceedings ArticleDOI
Nowcasting of tropical rain using dual frequency atmospheric brightness temperatures at Kolkata
Saurabh Das,Shamitaksha Talukdar,Rohit Chakraborty,Animesh Maitra +3 more
- pp 1-4
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TLDR
In this article, the authors demonstrate that the use of brightness values of oxygen absorption lines in addition with the water vapor absorption lines can provide unique signature of heavy rain and demonstrate that using brightness values in combination with the oxygen absorption line can improve the performance of nowcasting of thunderstorm.Abstract:
Nowcasting of thunderstorm has important implication on minimizing the loss of properties and life Conventional approaches for such purpose using radiometer measured brightness temperature of only water vapor line usually tend to overestimate the occurrence probability In this paper, we demonstrate that use of brightness values of oxygen absorption lines in addition with the water vapor absorption lines can provide unique signature of heavy rainread more
Citations
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Journal ArticleDOI
Nowcasting of rain events using multi-frequency radiometric observations
TL;DR: In this article, a microwave radiometer was used for nowcasting of heavy rain events at Kolkata (22.65°N, 88.45°E), a tropical location.
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.
References
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Journal ArticleDOI
Tropospheric water vapor, convection, and climate
TL;DR: In this article, a theory appears to be in place to predict humidity in the free troposphere if winds are known at large scales, providing a crucial link between small-scale behavior and large-scale mass and energy constraints.
Journal ArticleDOI
Nowcasting Thunderstorms: A Status Report
TL;DR: In this paper, the authors reviewed the status of forecasting convective precipitation for time periods less than a few hours (nowcasting), and developed techniques for nowcasting thunderstorm location were developed in the 1960s and 1970s by extrapolating radar echoes.
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).