Comparison between GACOS and RAiDER

dbekaert / RAiDER

Raytracing Atmospheric Delay Estimation for RADAR

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Comparison between GACOS and RAiDER #470

Open dbekaert opened 1 year ago

dbekaert commented 1 year ago

Keep same UTC and specify HRES.

[ ] are both using models levels?
[x] are both using same DEM?
[x] Are both using same model
[x] Are both for the same UTC time?

bbuzz31 commented 1 year ago

Differences are much smaller when using the same DEM

dbekaert commented 1 year ago

Do you have the mean residual? Also does this bias between GACOS and RAIDER disappear for differential delays?

piyushrpt commented 1 year ago

Does GACOS assume a top of an atmosphere value. If we know the number, we could subtract zenith delay at that height for comparison. If we are integrating to a height above what GACOS does, our delays will be greater. That might explain the negative bias in the plot.

bbuzz31 commented 1 year ago

For reference: GACOS assumes 80 km https://www.mdpi.com/2072-4292/12/5/782

jlmaurer commented 3 months ago

@bbuzz31 @dbekaert do you know if this should be listed as a "bug" issue? I seem to remember @bbuzz31 doing a lot of work on this issue, and seems like may be more of a comparison than a bug. Trying to work through all bug issue tickets currently.

bbuzz31 commented 3 months ago

@jlmaurer I suggest moving it to a discussion