Real-Time Northern and Southern Hemisphere Jet Diagnostics




This page illustrates some results from our work on characterizing and portraying both the subtropical and polar jet streams as well as locations where the two are vertically superposed.

Northern Hemisphere Jet Diagnostics

0000 UTC Northern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~10:15 PM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
0600 UTC Northern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~5:55 AM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
1200 UTC Northern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~11:55 AM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
1800 UTC Northern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~5:55 PM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure

7 Day Animations of Northern Hemisphere GFS Model Jet Diagnostics

Updated every 6 hours
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure

Southern Hemisphere Jet Diagnostics

0000 UTC Southern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~10:25 PM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
0600 UTC Southern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~6:05 AM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
1200 UTC Southern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~12:05 PM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure
1800 UTC Southern Hemisphere GFS Model Jet Diagnostics

Updated daily at ~6:05 PM CST
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure

This work is supported by the National Science Foundation under grant NSF-0950349

7 Day Animations of Southern Hemisphere GFS Model Jet Diagnostics

Updated every 6 hours
PV in the 340-355 K layer with STJ superposed PV in the 315-330 K layer with PJ superposed PV in the 315-330 and 340:355 K layers Pressure weighted wind speed from 100-400 hPa with STJ and PJ superposed Pressure weighted wind speed from 100-400 hPa with ST and PJ superpositions indicated WMO-Defined Tropopause Pressure