Investor Presentaiton
Conclusion
Factors affecting the boundary layer
height (hmax) change in Sichuan Basin.
• The inversion layer in troposphere is
the main factor affecting hmax on
cloudy days.
The vertical wind shear is the main
factors affecting max on sunny days.
• The secondary circulation is much
weaker on cloudy days than on sunny
days.
Pressure (hPa)
Pressure (hPa)
34°N
(a)
34°N
32°N-
32°N
Chengdu
Chengdu
0
30°N-
30°N
28°N
26°N
Chongqing
28°N
26°N
96°E 98°E 100°E 102°E 104°E 106°E 108°E 110°E
96°E 98°E 100°E 102°E 104°E 105°E 108°E 110°E
-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.
-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1
(c) 2017-12-12 14
(d) 2017-12-13 14
550
550
600
600
650
700
750
800
850
Pressure (hPa)
650
700
750
800
850
925
925
1000
1000
102°E
104°E 106°E
108°E
102°E 104°E 106°E 108°E
(e) 2017-12-16 14
(f) 2017-12-17 14
550
600
1000
888 28
550
600
650
700
750
800
850
925
Pressure (hPa)
650
700
750
800
850
925
1000
102°E
104°E
106°E 108°E
102°E
104°E
106°E 108°E
Temperature (°C)
-20-18-16-14-12-10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 201
10 m s¹View entire presentation