Re: Center fix mapping of the "fix" folder in the ATCF system
Posted by
Chris in Tampa on 10/19/2010, 5:33 pm
Only dropsonde and vortex messages that are added into the fix file will be added to the map. That usually does include a lot, if not all, of the fixes. I'm just not sure how long it may take for today's mission for example to appear. The fix file does include surface pressure and inner and outer eyewall temp when available and so does my product.
Here is all the stuff that the fix product will have, depending on what is available from recon:
Flight Level Height
Standard Level
Minimum Height at Standard Level
Estimated (by SFMR or visually) Maximum Surface Wind
Location of the Estimated Maximum Surface Wind
Maximum Flight Level Wind Inbound
Location of Maximum Flight Level Wind Inbound
Minimum Sea Level Pressure
Maximum Flight Level Temp Outside Eye
Maximum Flight Level Temp Inside Eye
Dewpoint Temp (collected at same location as temp inside eye)
Sea Surface Temp (collected at same location as temp inside eye)
Wall Cloud Thickness
Eye Shape
Eye Shape: Circular
Eye Diameter
Eye Shape: Elliptical (oval shaped)
Orientation of Major Axis in Elliptical Eye
Length of Major Axis in Elliptical Eye
Length of Minor Axis in Elliptical Eye
Eye Shape: Concentric
Navigation Fix Accuracy
Meteorological Accuracy
Mission Number
Comments
For AMSU, the only specific data it ever has is SLP (raw) and SLP (retrieved). And while I decode everything, I'm not exactly sure what some of it means. For most satellites (microwave) there is a field for "Temperature (passive micr)", but I'm not sure what that is yet. There is also a general field for all observations that is "Observation Height". However, it is rarely used so I'm not sure if AMSU would ever have it.
As for theta-e, is there a way to get all the data from a complete vortex message? For my site to do it, it would need to be so that I could get the exact value. Upon looking into it some again, I'm still not sure I would be able to calculate an exact value. I was looking here:
http://web.archive.org/web/20051122204141/meted.ucar.edu/awips/validate/thetae.htm
And it is missing a few images of formulas, but I see mention to Smithsonian Meteorological Tables. It just seems like a calculation I'm not sure I would be able to do. If you can find a scientific site that shows it specifically I'll take a look. It would need to be an exact value that is not a range based on what you might get from different methods.
The full version of the map has the balloons, but you mean have an automatic popup as soon as you mouse over an icon? (Kind of like the map on the front of my model page? http://www.tropicalatlantic.com/models/) I guess I could do a little label on both the simple and complex maps with something like:
Time
Coordinates (position confidence)
Wind Speed (wind speed confidence)
Pressure (pressure confidence)
I was not because then I had to think about confidence, but I can do a one word deal to indicate the confidence of the data. I'll add that in the next day or two. |
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