remote monitoring of weather at norwegian airports by kjell hegg and lasse stenberg

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

Series

Cisco PIX Begen

Series

Cisco PIX Tromsø

Uninett

isdn-gw

intern-gw

157.249.80.0

Se rie s

Cisco PIX Oslo

Se rie s

fks-gw

Series

fkn-gw

Series

gm-gw

Series

VAS-gw

Series

Bømlo

Series

Rissa

Series

Stavernodden

RMDCN NAIS

Series

Hægebostad

Series

Hagahogget

Flymet

Series enbo-gw

Series enan-gw

Series enol-gw

Series endu-gw

Series enbo-rs

Series enol-rs

Se rie s enzv-rsISDN

Series ensb-gw

SOIL

Series

Cisco 3620 Bergen

Se ries

Cisco 3620 Tromsø

soil-gw

PABX 15

PABX 63PABX 45

Series

Series

Series

157.249.16.0

ISDN

ISDN

Series

Cisco PIX Avinor

Se rie s

Cisco PIX/Avinor

Se rie s

Cisco PIX/Avinor

FjernTrend/Vest

FjernTrend/Nord

FjernTrend/Øst

TROMSØBERGEN

OSLO

Avaya P58R

Series

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