Download Basic climatic data about a mode of thunderstorms in

Basic climatic data about a mode of thunderstorms in Kyrgyzstan
The purpose of this work was to obtain the basic characteristics of thunderstorms
averaged on the territory of Kyrgyzstan, and four of its climatic provinces (North, Northwest
Kyrgyzstan, South-Western Kyrgyzstan, Issyk-Kul hollow and the Inner Tyan-Shan): the annual
frequency (number of cases) - x, the duration of individual thunderstorm - t, the integral number
of hours with thunderstorm for the year - n. For each characteristic according to the multi-year
period(1960-1991)using data of 65 Kyrgyzhydromet meteostations were calculated average
values ( x , t , n ), coefficients of variation (с(х), с(t), с(n)), estimated correlation-regression
relations and dependences of average values from elevation (z), latitude (φ0) and longitude (λ0)
of the meteostations.
Upon the average for Kyrgyzstan the annual rate frequency of thunderstorms is 27,7
cases, that is in 5-10 times higher than in the Turan lowland. The average rate of duration
individual thunderstorm is 1,24 hour, the rate of the integral number of hours with thunderstorm
is 36,3. For the main indicators of thunderstorm activity the Issyk-Kul hollow ranks the first
place, the South-Western Kyrgyzstan ranks second place. The actual limits of the rate
frequencies, durations and the integral numbers of hours with thunderstorm, received by the
individual meteostations are very broad.
Extremely important object is the evaluation of correlation-regression dependences of
rates calculated for each meteostation for year from elevation, latitude and longitude.
According to data of 65 meteorological stations in Kyrgyzstan, the correlation of main
characteristics of thunderstorms is sufficiently significant (p = 0,95):
1) parabolic correlation for x from z (r2=0,52), and also multiple linear correlation from z и λ
(R=0,46);
2) converse linear correlation for t from z (r1=-0,47);
3) parabolic correlation for n from z (r2=0,50).
Average values of annual frequency (number of cases) x for 0,6-3,5 km elevation:
z, km
0,6
1
1,5
2
2,5
3
20,6
28,3
33,4
33,7
29,1
19,6
x
3,5
5,2
Average values of duration of individual thunderstorm t for 0,6-3,5 km elevation:
z, km
0,6
1
1,5
2
2,5
3
1,63
1,52
1,38
1,24
1,09
0,95
t
3,5
0,81
Average values of the integral number of hours with thunderstorm n for 0,6-3,5 km elevation:
z, km
0,6
1
1,5
2
2,5
3
3,5
35,3
42,9
46,6
44,1
35,2
20,0
10,1
n
These dependencies are obtained by us for the first time. These dependencies show the
changing in the mode of thunderstorms with elevation on the territory of Kyrgyzstan.