Thunderstorm Nowcasting Using Ground-Based Microwave Radiometer Brightness Temperature Measurements

Thunderstorm Nowcasting Using Ground-Based Microwave Radiometer Brightness Temperature Measurements

The use of a ground-based multi-wavelength microwave radiometer (MWR) to produce atmospheric thermodynamic profiles of the troposphere up to 10 km utilizing brightness temperature derived from 35 different frequency channels for nowcasting severe convective weather is discussed in this study. In Jun...

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Bibliographic Details
Published in:Journal of the Indian Society of Remote Sensing Vol. 51; no. 11; pp. 2285 - 2294
Main Authors: Saroja, R. Pushpa, Rajasekhar, M., Naidu, C. V., Rambabu, S., Paparao, G., Deepak, C.
Format: Journal Article
Language:English
Published: New Delhi Springer India 01-11-2023
Springer Nature B.V
Subjects:
Brightness temperature
Earth and Environmental Science
Earth Sciences
Microwave radiometers
Nowcasting
Remote Sensing/Photogrammetry
Research Article
Thermodynamics
Thunderstorms
Troposphere
Water vapor
Brightness temperature
Thunderstorm
Microwave radiometer
Remote sensing
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Summary:The use of a ground-based multi-wavelength microwave radiometer (MWR) to produce atmospheric thermodynamic profiles of the troposphere up to 10 km utilizing brightness temperature derived from 35 different frequency channels for nowcasting severe convective weather is discussed in this study. In June 2014, MWR was implemented over Sriharikota (SHAR). The radiometer's measurements are first compared against temperature and humidity profiles of upper-air ascents to determine their accuracy. The goal of this research is to show the relationship between brightness temperature and thunderstorms that happened above SHAR. We found that combining the brightness temperature of the oxygen line in the atmosphere with the brightness temperature of the water vapour line provides far better antecedent signalling of convective occurrences over Sriharikota than the thermodynamic indicators which did not show any prominent results for thunderstorm nowcasting.
ISSN:0255-660X
0974-3006
DOI:10.1007/s12524-023-01757-2