This data set is based on the lightning location data calculation of TBB products, cloud classification (CLC) products and world wide lightning location network (wwlln) in the full disk area detected by fy-2e satellite (fy-2e) from 2010 to 2018 to establish the lightning storm cloud feature data set. The algorithm used for wwlln lightning clustering is DBSCAN algorithm. According to Hutchins et al. (2014), it is required that the number of lightning in each lightning cluster in the thunderstorm cloud is greater than 2 and all fall within the radius of 12 km. The data set includes thunderstorm cloud time and location information, thunderstorm cloud shape (long, short axis, rotation angle, etc.) information represented by fitting ellipse, cloud area representing thunderstorm cloud structure, statistical value of black body temperature (TBB), included flash information, and included strong convection core, lightning cluster information and other data information.
MA Ruiyang , ZHENG Dong
Observation data of atmospheric average electric field and ground meteorological elements of Thunderstorm Activities in Lhasa from 2019 to 2021, including continuously monitored atmospheric average electric field intensity and polarity per second / minute, precipitation per minute, wind speed, air temperature, relative humidity, atmospheric pressure and other meteorological elements, as well as equipment status parameters. The data comes from the field observation experiments of severe convection and lightning disasters carried out in Lhasa urban area from 2019 to 2021. The data can be applied to the study of severe convection and lightning disasters in the Qinghai Tibet Plateau. The observation and data acquisition shall be carried out in strict accordance with the instrument operation specifications. Measurement accuracy of atmospheric average electric field: ± 5% × Measured value + 8V / M offset; Measurement accuracy of air temperature, Rh, wind speed and wind direction: ± 0.1 ℃, ± 0.8%, ± 0.3m/s and ± 3 º; Precipitation measurement accuracy: ± 1% (≤ 10mm / HR), ± 3% (10 ~ 20mm / HR), ± 5% (20 ~ 30mm / HR) Atmospheric pressure measurement accuracy: ± 0.3hpa @ 20 ℃, ± 0.6hpa @ 0 ~ 40 ℃, ± 1.0hpa @ - 20 ~ 45 ℃, ± 1.5hpa @ - 40 ~ 60 ℃.
FU Danhong
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