Comparison of Cloud Structures of Storms Producing Lightning at Different Distance Based on Five Years Measurements of a Doppler Polarimetric Vertical Cloud Profiler
نویسندگان
چکیده
We processed five years of measurements (2018–2022) a vertically pointing radar MIRA 35c at the Milešovka meteorological observatory with aim analyzing cloud structure thunderstorms and comparing differences in measured data for cases when lightning discharges were observed very close to position, greater distance from position. The is Doppler polarimetric working 35 GHz (Ka-band) vertical resolution 28.9 m time approximately 2 s. For analysis, we considered whose reflectivity was least 10 dBZ 5 km or higher above ensure that there radar. divided into “near” (a discharge registered up 1 position) “far” 7.5 position). compared following quantities: (i) Power co-channel (pow), (ii) power cross-channel (pow-cx), (iii) phase (pha), (iv) (pha-cx), (v) equivalent (Ze), (vi) Linear Depolarization Ratio (LDR), (vii) co-polar correlation coefficient (RHO), (viii) radial velocity (V), (ix) spectrum width (RMS), (x) Differential (Phi). Pow, pow-cx, pha, pha-cx, V are basic by radar, while Ze, LDR, RHO, RMS, Phi derived quantities. Our results showed characteristics quantities clearly distinct dataset dataset. Furthermore, found out clear evolution dataset, which not obvious
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2023
ISSN: ['2072-4292']
DOI: https://doi.org/10.3390/rs15112874