Wednesday, September 26, 2007

Meteorology & Navigation

Did some navigation and a lot of meteorology today. The 3 basic (most extensive) subjects are 1.Meteorology 2.Navigation 3.Canadian Aviation Regulations all other subjects are pretty straightforward, from what I've seen so far.

To give you an idea of what pilots have to decipher weather-wise,here's a METAR (METeorological Aerodrome Report) & TAF (Terminal Area Forecast) for Vancouver Intl today :
METAR CYVR 270200Z 29002KT 15SM FEW015 SCT170 BKN230 12/10 A3017 RMK
SF1AC2CI2 SLP218=

METAR CYVR 270300Z 00000KT 20SM FEW015 SCT170 BKN230 12/09 A3015 RMK
SF1AC3CI1 SLP211=

METAR CYVR 270400Z 01002KT 15SM VCFG FEW160 BKN230 11/09 A3013 RMK
AC2CI2 SLP204=

TAF CYVR 270238Z 270324 VRB03KT P6SM FEW015 SCT120 BKN220
FM0900Z 09005KT P6SM SCT015 BKN050 OVC100 TEMPO 1015 5SM -SHRA BR
BKN015 OVC040
FM1500Z 12012KT 6SM -RA BR SCT010 OVC025 TEMPO 1524 2SM -RA BR
OVC010
RMK NXT FCST BY 06Z=

This is supposed to give you a 3 dimensional idea of what the weather should look like above Vancouver. The reason it's al abbreviated is because they used to do all this by telex and they got charged for every letter they put in.
A metar would usually contain:
Station identifier (CYVR), time (zulu time, that currently GMT-1, but it's because we are in daylight savings time now, normally it's just GMT), wind, visibility, clouds & their height, cloud density (few, overcast, broken) and precipitation if present (e.g.:-SHRA= light rainshowers) .

Seemed to have problems uploading photos today, I think I exceeded my montly limit on my cell phone. So no photos this month (unless for some reason it only didn't work today)

1 comment:

Anonymous said...

Dude... it's all greek to me.. but I'm sure you'll find your way through the maze of codes and cyphers!
Groeten uit het verre Belgie!