National Center for Atmospheric Research
ATD... MM5 Plots for IHOP valid on 20020621

The images are from the last 8 hours of a 15 hour forecast made with the NCAR/PSU mesoscale model MM5 Version 3 using dynamic initialization period of 4 hours. The model is forced with output data from the operational forecasts from AWIP3D Eta 12 km model. We use two levels of nesting to produce a high resolution (1.333 km) simulation centered on SPOL in the OK panhandle. The images are divided into four categories. There is a separate index page for each category with thumbnail images of all the plots in that category.

Category Domain Description
Time-height S-Pol Hillsboro Homestead Time-height plots
Spatial cross-sections d1 d2 d3 Spatial cross-sections (horizontal versus height) between a point west of S-Pol and east of Homestead
Horizontal Thermodynamic Fields d1 d2 d3 Contour plots in the horizontal plane
Horizontal Microphysics Fields d1 d2 d3 Contour plots in the horizontal plane of clouds and precip
Convection Fields d1 d2 d3 Contour plots in the horizontal plane of Convection Predictors
All Fields d1 d2 d3 Given as individual links for access from slow connections

Assimlated data from :

To select images directly by filename instead of through the thumbnail pages, see the tables of filenames at the end of this page. See below for an explanation of the filenames.

The model output images will be available by 1800 CDT each day. The actual model output data will be archived on the NCAR Mass Store.

Each image filename has this general form:

pref + yyyymmdd_hh.png
The prefix (pref) denotes the plotted variable, (yyyy) is the year, (mm) is the month, (dd) is the day and (hh) is a time (UTC). For (*tht*) files, (hh) is the forecast initalization time, while for all other files (hh) is the forecast hour of the model run. To get verification time add the forecast time to the initialization time.

The prefix (pref) has the following meanings:

tclw_vecvertically integrated cloud water (g kg-1)
cape convective available potential energy (J kg-1)
cin convective inhibition (J kg-1)
pcpconvective and total rainfall (mm)
tt_ght850850 mb winds, temperature and heights
qvmr_vecwater vapor mixing ratio and wind barbs (g kg-1)
eptequivalent potential temperature (K)
ww700vertical velocity at 700 mb (m s-1)
qvadvhorizontal advection of water vapor (g kg-1 m s-1)
tsfc_slpsurface air temperature and sea level pressure (C, mb)
tercross section location and terrain (m)
xew_ww_tclwcross section: vertical velocity and cloud water (cm s-1, g kg-1)
xew_pt_veccross section: horizontal wind vectors and equiv. potential temperature (m s-1, K)
xew_qv_divcross section: water vapor mixing ratio and divergence (g kg-1, s-1)
spol_thttime-height contour plot at S-Pol
home_thttime-height contour plot at Homestead
xdenotes spatial cross section

© NCAR/Atmospheric Technology Division

Created Fri Jun 21 16:32:02 MDT 2002