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A comprehensive multi sensor study of spatio-temporal variation of hail occurrence and their size over the north eastern part of India

机译：印度东北地区冰雹发生时空变化及其大小的综合多传感器研究

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A study of spatial and temporal variation of hail occurrences and their size is carried out over the north-eastern part of India (23 - 29 °N and 89-100 °E) during the pre-monsoon season (March-May). For this purpose, thirty four years of ground report data of hail occurrence (1985-2018) and four years of their size (2015-2018) at eleven meteorological stations of India Meteorological Department are utilized. The hail events are analyzed in association with the multi sensor observations. A near simultaneous radar reflectivity profile observations from Ku band precipitation radar on TRMM and GPM satellites are considered. Thermal infrared imager (TIR 11.3 μm on INSAT-3D, along with the Doppler Weather Radar (DWR) at Agartala and Dibrugarah (Mohanbari) stations are utilized to study the life cycle of hail storms. The ice microphysical properties in the mixed phase region are studied by CloudSat observations. The nearby radiosonde observations are utilized to study the instability condition of the atmosphere during hail events.
机译：在季风前季节（3月至5月），对印度东北部地区（23-29°N和89-100°E）的冰雹发生及其时空变化进行了研究。为此，利用了印度气象局的11个气象站的冰雹发生的三十四年地面报告数据（1985-2018年）和其规模的四年（2015-2018年）。结合多传感器观测结果分析冰雹事件。考虑了在TRMM和GPM卫星上从Ku波段降水雷达进行近乎同时的雷达反射率剖面观测。利用红外热像仪（INSAT-3D上的TIR 11.3μm）以及阿加塔拉和迪布鲁加拉（Mohanbari）站的多普勒天气雷达（DWR）研究冰雹的生命周期，混合相区域的冰微物理性质为由CloudSat观测所研究，附近的无线电探空仪观测被用于研究冰雹事件期间大气的不稳定性条件。

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