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Forecast Equivalent Reflectivity
from RAPIDS-NHM
2010-07-28 04 UTC
T+04 h forecast
Forecast Equivalent Reflectivity
from RAPIDS-NHM
2010-07-28 04 UTC
T+04 h forecast
2010-07-28 16 HKT
2010-07-28 16 HKT
25
°
N
25
°
N
24
°
N
24
°
N
23
°
N
23
°
N
22
°
N
22
°
N
21
°
N
21
°
N
CNTL
20
°
N
20
°
N
112
°
E
113
°
E
114
°
E
115
°
E
116
°
E
117
°
E
112
°
E
°
E
°
E
°
E
°
E
°
E
dBZ
dBZ
10 15 20 24 28 32 34 38 41 44 47 50 53 56 58 60
10 15 20 24 28 32 34 38 41 44 47 50 53 56 58 60
hk_comp
CAPPI
R_C_030_128
Task: PPIVOL_.
PRF:576/432
Height:3.0 km
Max Range:128 km
15:00:01
28 JUL 2010 HKT
>300
---
200
150
100
75
50
30
15
10
7
5
3
2
1
300
200
150
100
75
50
30
15
10
7
5
3
2
1
0.50
0.15
0.50
Fig. 22.10
h forecast of equivalent reflectivity at 0800 UTC using radar retrieval winds and
CNTL. Radar CAPPI reflectivity at 0700 UTC is shown in
lower panel
T
C
4
field based on the radial velocity data from the PPI scans of the LIDAR. To study the
possibility of real-time monitoring of the wind field based on LIDAR measurements,
the computationally more efficient approach of parameter identification (PI) method
is adopted here
The cost function in the variational method is defined as:
J.
u
;
v
/
D
J
1
C
J
2
C
J
3
C
J
4
C
J
5
C
J
6
:
(22.8)
The first term in (
22.8
) is the background term as given by:
J
1
D
X
i;j
u
u
B
/
2
C
.
v
v
B
/
2
:
W
1
Œ.
(22.9)
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