Real time Convection page
Purpose:
initiated March 20, 2007  updated March 25, 2007
Clock requires Netscape


adding a real time simple Time to space conversion of surface observations.
Observations include AWOS data taken at 20 minute intervals and also any special reports. The TSC analysis uses a time window of +/- 1 hour and the spatial analysis is constructed with a Barnes scheme. The grid spacing is computed with gempak and then doubled to remove noise since there is no temporal weighting.

Meteorograms and surface data:


Current Surface Potential Temperature gradient (shaded) and surface potential temperature (contoured) every 4 C from SUNY Albany


Surface moisture analysis ( g kg^-1) from SUNY Albany


Lid Strength Index after Carlson (1980) : Lid strength in Celsius to the left, pressure difference between inversion level and the most unstable parcel pressure to the right. Blue is current radiosonde launch while black is 6 hours behind. Plotted also is the lid breech temperature (take the lid temperature down to the sfc dry adiabatically). LSI (black contour) and CIN (blue dashed)
 

CAPE/CIN/ DCAPE analysis from Emmanuel (1994?) MUCAPE (black) and DCAPE (Blue dashed)

Most probable CAPE and CIN (parcel with least CIN provided CAPE is greater than 250 j/kg)

  A Time to space conversion analysis of real time surface data (altimeter setting converted to pmsl ); Observation counts are shaded below 3. This is a measure of how well the barnes scheme handled the data (where extrapolation was necesary)AND how much data got into the scheme (It isn't always the schemes fault!) We have also added a 1km radar mosaic image to each plot. If you are interested in the technique and details of the real-time system, click here for my preprint at the 84th AMS annual meeting in Seattle.

A note on the meteorograms: When possible stations with 1 minute data will be shown.

Generated by jimmyc@iastate.edu using GEMPAK