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