Ruhr Smog - Pictures and Descriptions Wanted

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Here's the text for the thicker lower version used for the night shots.

<Weather Name="England Low Smog-France Clear">

<BackgroundWeather precipType="NoRain" skyboxCloudType="NoClouds" MaxAltitude="-90" MinAltitude="-100" fogColor="4288789972" Windspeed="0" windDir="0" >
<CloudLayer cloudfile="cloudCumulusSmall.xml" CloudType="ScatteredClouds" CloudRadius="40000" CloudCount="40" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />

<CloudLayer cloudfile="CloudCumulus2.xml" CloudType="ScatteredClouds" CloudRadius="45000" CloudCount="12" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />


</BackgroundWeather>

<WeatherObject skyboxCloudType="BrokenClouds" MaxAltitude="20000" MinAltitude="0" fogColor="4290432475" Windspeed="8" windDir="270" >


<Bounds>
<Point Lat="N52 54" Lon="E3 41"/>
<Point Lat="N49 22" Lon="E0 2"/>
<Point Lat="N51 9" Lon="W4 48"/>
<Point Lat="N54 16" Lon="W11 14"/>

<CloudLayer cloudfile="dr_sandstorm_cloud.xml" CloudType="ThickClouds" CloudRadius="20000" CloudCount="50" MinAltitude="10" MaxAltitude="5000" fogColor="4288987369" Density="1"/>



</Bounds>
</WeatherObject>


</Weather>
Thanks Andy, I'll have to try this out. I think my memory of how the haze works may be faulty. It's been a while since I was working with this aspect of it.
 
I checked and multiple boundary areas work as well.

<Weather Name="London Rhur Low Smog - France Clear">

<BackgroundWeather precipType="NoRain" skyboxCloudType="NoClouds" MaxAltitude="-90" MinAltitude="-100" fogColor="4288789972" Windspeed="0" windDir="0" >
<CloudLayer cloudfile="cloudCumulusSmall.xml" CloudType="ScatteredClouds" CloudRadius="40000" CloudCount="40" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />

<CloudLayer cloudfile="CloudCumulus2.xml" CloudType="ScatteredClouds" CloudRadius="45000" CloudCount="12" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />

</BackgroundWeather>

<WeatherObject skyboxCloudType="BrokenClouds" MaxAltitude="20000" MinAltitude="0" fogColor="4290432475" Windspeed="8" windDir="270" >

<Bounds>
<Point Lat="N51 68" Lon="E1 69"/>
<Point Lat="N51 01" Lon="E1 44"/>
<Point Lat="N51 35" Lon="W1 11"/>
<Point Lat="N52 02" Lon="W0 61"/>

<CloudLayer cloudfile="dr_sandstorm_cloud.xml" CloudType="ThickClouds" CloudRadius="45000" CloudCount="50" MinAltitude="10" MaxAltitude="3050" fogColor="4288987369" Density="1"/>

</Bounds>
</WeatherObject>

<WeatherObject skyboxCloudType="BrokenClouds" MaxAltitude="20000" MinAltitude="0" fogColor="4290432475" Windspeed="8" windDir="270" >

<Bounds>
<Point Lat="N52 02" Lon="E8 11"/>
<Point Lat="N50 63" Lon="E7 53"/>
<Point Lat="N50 34" Lon="E4 16"/>
<Point Lat="N52 63" Lon="E3 85"/>

<CloudLayer cloudfile="dr_sandstorm_cloud.xml" CloudType="ThickClouds" CloudRadius="45000" CloudCount="50" MinAltitude="10" MaxAltitude="3050" fogColor="4288987369" Density="1"/>

</Bounds>
</WeatherObject>


</Weather>
 
I'll check it out. So includes both London and the Rhur? The coordinates don't seem to match for the Rhur as seen in my missions builder which are more E6.35 ish to E7.37 ish and N51.50 ish down to N50.60 ish ?
 
I included the industrial parts of Holland and then provided for some drift to the east from the Rhur.

Properly done each industrial city area would have it's own little patch of smog.
 
I included the industrial parts of Holland and then provided for some drift to the east from the Rhur.

Properly done each industrial city area would have it's own little patch of smog.
Ah! So I imagine then one could try 3 or 4 entries in theory? Now you've done the hard work, I might play around!
 
Well my first attempt of cut-paste-change for a <Weather Name="England Low Mist-France Clear-Rhur Smog"> IMHO. not bad as seen by day; at night I couldn't see anything anyway! Maybe with a full moon I might have seen some thing. See screenshots. Still maybe a bit more 'cloudy' than 'hazy' or 'foggy'. Interesting to see what Dan makes of it.

<Weather Name="England Low Mist-France Clear-Rhur Smog">

<BackgroundWeather precipType="NoRain" skyboxCloudType="NoClouds" MaxAltitude="-90" MinAltitude="-100" fogColor="4285571302" Windspeed="0" windDir="0" >
<CloudLayer cloudfile="cloudCumulusSmall.xml" CloudType="ScatteredClouds" CloudRadius="40000" CloudCount="40" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />

<CloudLayer cloudfile="CloudCumulus2.xml" CloudType="ScatteredClouds" CloudRadius="45000" CloudCount="12" Lightning="noLightning" MinAltitude="900" MaxAltitude="900" fogColor="4287542759" />

<CloudLayer cloudfile="dr_alto_cumulus_cloud.xml" CloudType="ScatteredClouds" CloudRadius="35000" CloudCount="225" Lightning="noLightning" MinAltitude="7000" MaxAltitude="7000" fogColor="4288987369"/>

</BackgroundWeather>

<WeatherObject precipType="LightRain" skyboxCloudType="ThinClouds" MaxAltitude="450" MinAltitude="250" Windspeed="0" windDir="0" >

<Bounds>
<Point Lat="N52 54" Lon="E3 41"/>
<Point Lat="N49 22" Lon="E0 2"/>
<Point Lat="N51 9" Lon="W4 48"/>
<Point Lat="N54 16" Lon="W11 14"/>

<CloudLayer cloudfile="eto_altocumulus.xml" CloudType="ThinClouds" CloudRadius="46000" CloudCount="1" Lightning="NoLightning" MinAltitude="16000" MaxAltitude="16000" fogColor="4288987369"/>
<CloudLayer cloudfile="cloudCumulusSmall.xml" CloudType="ThinClouds" CloudRadius="40000" CloudCount="100" Lightning="noLightning" MinAltitude="5" MaxAltitude="5" fogColor="4287542759" />

<CloudLayer cloudfile="eto_ground_fog2.xml" CloudType="ThinClouds" CloudRadius="35000" CloudCount="60" Lightning="noLightning" MinAltitude="5" MaxAltitude="5" fogColor="4288987369"/>
<CloudLayer cloudfile="dr_alto_cumulus_cloud.xml" CloudType="ScatteredClouds" CloudRadius="35000" CloudCount="225" Lightning="noLightning" MinAltitude="5" MaxAltitude="5" fogColor="4288987369"/>

</Bounds>
</WeatherObject>

<WeatherObject skyboxCloudType="BrokenClouds" MaxAltitude="20000" MinAltitude="0" fogColor="4290432475" Windspeed="8" windDir="270" >
<Bounds>
<Point Lat="N51 47" Lon="E7 49"/>
<Point Lat="N51 39" Lon="E8 01"/>
<Point Lat="N50 52" Lon="E7 01"/>
<Point Lat="N51 30" Lon="E6 42"/>

<CloudLayer cloudfile="dr_sandstorm_cloud.xml" CloudType="ThickClouds" CloudRadius="45000" CloudCount="50" MinAltitude="10" MaxAltitude="3050" fogColor="4288987369" Density="1"/>

</Bounds>
</WeatherObject>

</Weather>

Day
 

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2 ?s for Andy (or anyone else who knows!)

1. Have you tried polygons with more than 4 sides?

2. Can this fog, (Ground Fog Heavy) and the haze for that matter, be made more continuous?
 

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I have just tested Andy's file with the new shaders. Unfortunately, regional changes to the haze color are not possible. This is due to the much greater horizon distance preventing a good transition. I will try a smog cloud, and see what kind of results I can get.
 
Alright, here's a first go at it. Needs some refinement, but I think the concept is working well.
ZazvRST.jpeg


A better look at downward visibility through the smog:
ZMtrAj9.jpeg


This one shows the edge of the smog area near London, with smog on the left and clearer air to the right:
TNFNnuQ.jpeg
 
1. Can you send a pic from 15K-20K from vertically above the smog/haze.
2. The same at night BC and to some extent the 8th. USAAF, complained that their targets were obscured.
 
Well that sure looks fine for night, Interesting to see what would happen with any searchlights on. I suppose with B17s in daytime + German set smoke fires for concealment, would make it difficult for accurate targeting, which reminds me, I have to investigate how to do wind driven concealing smoke pots or fires used by the Germans!
 
Are there any good photos showing what this looked like from a distance?
Actually it's very hard to find pics from vertically above, but these may sort of give an idea of what it might have been like, taken from various sources old and new. ".....Another problem was that the Ruhr Valley was so heavily industrialised that there was constant smog in the skies above it, which impeded the bomb aimers but also made it difficult for the navigators to even find the target area."
For a modern idea

(for some reason you have to backspace on the links if the pics disappear)



 

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Smog like fog will lift and will become a dirty brown cloud. Saw this just the other day as it was hanging like a thin brown stratus cloud just north of Ft. Leavenworth.
 
Smog like fog will lift and will become a dirty brown cloud. Saw this just the other day as it was hanging like a thin brown stratus cloud just north of Ft. Leavenworth.
Actually that does not happen in many cases, especially conurbations and industrial cities. not criteria met by Leavenwprth; as a metro KC resident I know.
 
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