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Surface Winds at High Altitude Airports...

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Hi Damian,I have a small problem with ActiveSky. I'm sat on the ground at LEMD, and the downloaded METAR reads:LEMD 271430Z 18005KT 100V250 CAVOK 21/06 Q1016However, in FS I have winds calm... the problem is that the surface wind layer that ActiveSky creates (correctly to be 180/05) is set to be between 0ft and 2000ft AMSL. Unfortunately LEMD is at 2000ft AMSL, and so the surface wind layer sits nicely below the ground level.I think the solution would be to store the ground level elevation of each reporting station, and to set the surface winds to be 2000ft AGL, rather than 2000ft AMSL. But I don't know how that then interacts with winds aloft, and how easy it is to do...Any thoughts...Simon Kneller.

  • Commercial Member

Simon,Check the icao.txt file for the LEMD entry. Make sure the elevation is correct, if not, you can adjust it (this is in METERS). Your solution is exactly what wxRE does, but it looks like a data problem. Let me know if that fixes it! Thanks-Damian[table border=0" cellspacing="30" cellpadding="0][tr][td align = "left"]Damian ClarkHiFi Simulation SoftwareDeveloper of ActiveSkyThe next-generation weather environment simulation for FS2002!http://hifi.avsim.net/activesky[/td][td]http://hifi.avsim.net/activesky/images/wxrebeta.jpg][/td][/tr][/table://http://hifi.avsim.net/activesky/ima...[/tr][/table

Damian Clark
HiFi  Simulation Technologies

Thanks Damian,Elevation entry for LEMD is correct... and the problem seems to have gone away now. Must have been a temporary blip.CheersSimon.

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