Remote Monitoring of Weather at Norwegian Airportsby Kjell Hegg and Lasse Stenberg
Norwegian Meteorological Institute met.no
Background
• Trend forecasts to be performed from forecasting centrals
• Online presentation of all instrument measured meteorological parameters
• Video images covering the sky around the airport
• METAR to be made by airport employees
• TREND to be added at forecasting centrals
• Near true time presentation of measurements
Norwegian Meteorological Institute met.no
Instrumentation• Wind measurements
– at least to sites along each runway• Air temperature, humidity and air pressure
– sensors connected to datalogger at the airport• Ceilometers
– giving cloud bases and vertical visibility• Visibility
– transmissometers or forward scatter instrumentation, the forward scatter instruments includes PW algorithms.
• Video cameras– up to 6 cameras in use at a specific airport
Norwegian Meteorological Institute met.no
System design
• Serial outputs connected to LAN– Terminalservers used
• Modems used for ceilometers and forward scatter instruments
• Wind directly connected to terminalserver
• Videocameras connected via videoserver
• Net connected LINUX server
Norwegian Meteorological Institute met.no
Net connection to forecasting centrals
Avaya P330RAvayaP330R
Serie s
Cisco PIX Begen
Series
Cisco PIX Tromsø
Uninett
isdn-gw
intern-gw
157.249.80.0
Se ries
Cisco PIX Oslo
Serie s
fks-gw
S eries
fkn-gw
Ser ie s
gm-gw
Se rie s
VAS-gw
Se ries
Bømlo
Ser ies
Rissa
Se ries
Stavernodden
RMDCN NAIS
Se ries
Hægebostad
Series
Hagahogget
Flymet
Series enbo-gw
Seri es enan-gw
Se ries enol-gw
Series endu-gw
Serie s enbo-rs
Ser ie s enol-rs
Se ri es enzv-rsISDN
Series ensb-gw
SOIL
Serie s
Cisco 3620 Bergen
Series
Cisco 3620 Tromsø
soil-gw
PABX 15
PABX 63PABX 45
Se ries
Series
Se rie s
157.249.16.0
ISDN
ISDN
Se rie s
Cisco PIX Avinor
Series
Cisco PIX/Avinor
Series
Cisco PIX/Avinor
FjernTrend/VestFjernTrend/Nord
FjernTrend/Øst
TROMSØBERGEN
OSLOAvaya P58R
Se rie s
Cisco Pix SOIL
• 3 airports connected to Bergen, 2 to Oslo and sofar only one to Tromsoe (TREND forecasting)
• All servers are accessible from Oslo (servicing)• Simultaneous data collection locally at airport
servers ans at main servers at forcasting centrals.
Norwegian Meteorological Institute met.no
Software development
• Licence free platforms (LINUX/PostGreSQ
• Kylix/Java used as development tools• Software meodules
– Sensor data collectors– Video image collectors– Database – Sensor data presentation– Video image presentation
Norwegian Meteorological Institute met.no
User interface/data presentation
• New values once a minute
• Graphical fields
• Status field• Numerical
now values
Norwegian Meteorological Institute met.no
Video image presentation• 4 images on
the same screen
• Any image can be enlarged by clicking on the actual image
• Images are time stamped
• Animation of a sequence of images
Norwegian Meteorological Institute met.no
Configuration
• Configuration tables stored in database
• Tools to create/change configuration are developed
• The user interface can be tailored to users need by configuration changes
• New sensors can be added by using existing parameter configuration tables
Norwegian Meteorological Institute met.no
Conclusion and spin-offs
• Flexible and stable system, easy to change to fit other applications.
• The same technology are now used to collect data from automatic weather stations
• Data collection from the weather ship Mike
• On line access to a new meteorological station in the Antarctic
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