Hail Detector and Forecaster ArtAr-HDF  

作　　者：Artashes K. Arakelyan Vanik V. Karyan Maria K. Arakelyan Artashes K. Arakelyan;Vanik V. Karyan;Maria K. Arakelyan(ECOSERV Remote Observation Centre Co. Ltd., Yerevan, Armenia)

机构地区：[1]ECOSERV Remote Observation Centre Co. Ltd., Yerevan, Armenia

出　　处：《Agricultural Sciences》2020年第11期966-982,共17页农业科学（英文）

摘　　要：This article describes a new and low-cost microwave passive sensor for hail prediction (forecasting) and detection developed in Armenia, which can be used to implement fully autonomous and automatically functioning hail protection of locally limited or large agricultural and urban areas in order to prevent, suppress or catch hail in traps. The article also presents the results of measurements of the intrinsic emission characteristics of water and ice, rain and hail clouds, carried out in laboratory and field conditions in the Ku-band of radio frequencies. The results obtained showed that the intrinsic emission of a hail cloud in the Ku-band of radio frequencies differs significantly from the intrinsic emission of a rain cloud. The presented results show that indeed the radar is not very suitable for the timely detection and determination of hail with a high probability, which is very important for the timely starting up of anti-hail protection means. On the contrary, radiometers (passive microwave sensors) can become an effective sensing tool for timely detection and recognition of hail with a high probability of long-range approaches up to ~12 - 15 km.This article describes a new and low-cost microwave passive sensor for hail prediction (forecasting) and detection developed in Armenia, which can be used to implement fully autonomous and automatically functioning hail protection of locally limited or large agricultural and urban areas in order to prevent, suppress or catch hail in traps. The article also presents the results of measurements of the intrinsic emission characteristics of water and ice, rain and hail clouds, carried out in laboratory and field conditions in the Ku-band of radio frequencies. The results obtained showed that the intrinsic emission of a hail cloud in the Ku-band of radio frequencies differs significantly from the intrinsic emission of a rain cloud. The presented results show that indeed the radar is not very suitable for the timely detection and determination of hail with a high probability, which is very important for the timely starting up of anti-hail protection means. On the contrary, radiometers (passive microwave sensors) can become an effective sensing tool for timely detection and recognition of hail with a high probability of long-range approaches up to ~12 - 15 km.

关 键 词：HAIL Hail Detection Hail Forecasting Hail Prevention and Suppression Hail Trapping Brightness Temperature Microwave Radiometer 

分 类 号：P45[天文地球—大气科学及气象学]