Transcript German Meteorological Service Weather-Observing-Camera-Network WeBoKaN = Wetter-Beobachtungs-Kamera-Netzwerk Theodor Mammen, Uwe Wienert (Rainer Bauer, Hardy Pinz, Eckhard Lanzinger et al) WeBoKaN DWD 1

German Meteorological Service
Weather-Observing-Camera-Network
WeBoKaN =
Wetter-Beobachtungs-Kamera-Netzwerk
Theodor Mammen, Uwe Wienert
(Rainer Bauer, Hardy Pinz, Eckhard Lanzinger et al)
WeBoKaN
DWD 1
German Meteorological Service
Topics:
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WeBoKaN
Technology
Products
Local-Remote Comparison
Outlook
DWD 2
German Meteorological Service
TECHNOLOGY
WeBoKaN
DWD 3
German Meteorological Service
Integration of
Standard Components
to a flexible and
specialized System
WeBoKaN
DWD 4
German Meteorological Service
Outdoor:
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Movable Camera
Fixed Camera
Sensors (Temp., Precip. Y/N)
Fountain solution for wiper
Indoor:
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WeBoKaN
PC
Terminalserver
Network
BITE and UPS
DWD 6
German Meteorological Service
PRODUCTS
WeBoKaN
DWD 7
German Meteorological Service
• Panorama: wide angle allows full 360 degrees with 8 shots
Movable Camera
• Zoomed target for estimate of visibility
WeBoKaN
DWD 8
German Meteorological Service
Picture:
• JPG-Header includes
meta data
WeBoKaN
Movie:
• Full PAL- or 1/4 PAL-resolution
DWD 9
German Meteorological Service
INTER-COMPARISON
LOCAL REMOTE
WeBoKaN
DWD 11
German Meteorological Service
WeBoKaN
DWD 12
German Meteorological Service
Timeperiod:
• September,1st 2003 to August,31 2004
Parameter (data availability):
• Total Cloud Coverage (>90%)
• Horizontal Visibility (>90%)
• Present Weather (60%)
• State of Ground (10%)
WeBoKaN
DWD 13
German Meteorological Service
Evaluation of total cloud coverage
Time period: 01.09.2003 to 31.08.2004
WEBOKAN-Station: Rostock-Warnemünde
WN
Total Cloud amount SYNOP
N
Kap-Arkona
Total cloud amount from WeBoKaN
0/8
1/8
2/8
3/8
4/8
5/8
6/8
7/8
8/8
9/8
Sum
0/8
1/8
2/8
198
52
5
20
186
105
3
21
81
0
2
26
0
1
4
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
221
263
221
3/8
0
51
130
69
23
7
1
2
0
0
283
4/8
5/8
6/8
7/8
0
0
0
0
13
6
4
0
25
20
11
0
57
39
22
7
76
107
40
6
35
105
128
28
7
61
257
111
2
11
153
648
0
0
8
100
0
0
0
3
215
349
623
903
8/8
0
0
0
0
0
2
8
165
1157
12
1344
9/8
0
255
0
385
0
291
0
222
0
257
0
305
0
445
3
984
8
1273
31
47
42
4464
5
74
59
70
51
37
16
18
8
4
Sum
Dif.
>
1/8
Dif. in
%
Sum (all Hits):
Non-Hits:
WeBoKaN
Remote Station:
1,96% 19,22% 20,27% 31,53% 19,84% 12,13%
4464
342
or
7,7%
3,60%
1,83%
0,63%
8,51%
ideal Hits
2808
or
62,9%
incl. +/- 1/8:
4122
or
92,3%
DWD 14
German Meteorological Service
Summary of Inter-Comparison:
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Cloud Coverage and Visibilty can be well optained
Intensity of precipitation hard to get
Snow Voverage OK, other States of Ground not
Results from different Stations are similar
Summary of Questionnaire:
• Forecasters use DWD- and other Internetcameras
– Cloud Coverage and Visibilty (60-80%)
– Present Weather from Movies (55%)
WeBoKaN
DWD 15
German Meteorological Service
OUTLOOK
WeBoKaN
DWD 16
German Meteorological Service
Noise reduction:
Original
WeBoKaN
Averaged over 8 pictures
DWD 17
German Meteorological Service
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Scanning will we optimized
Extend operation to „Low Brightness Condition“
Host based „Exposure“ and Picture Manipulation
Complete „outdoor“ Installation will be tested
• Requests for more Systems (WKN-II)
• We apply for Ressources
• Integration into NINJO (DWD Data Display System)
WeBoKaN
DWD 18
German Meteorological Service
WeBoKaN
DWD 19
German Meteorological Service
Sahara-Dust over Bavaria
WeBoKaN
DWD 21