Table of Available Diagnostics

Variable Name Description Available Units Additional Keyword Arguments
avo Absolute Vorticity 10-5 s-1  
eth/theta_e Equivalent Potential Temperature

K

degC

degF

units (str) : Set to desired units. Default is ‘K’.
cape_2d 2D cape (mcape/mcin/lcl/lfc) J kg-1 ; J kg-1 ; m ; m missing (float): Fill value for output only
cape_3d 3D cape and cin J kg-1 missing (float): Fill value for output only
ctt Cloud Top Temperature

degC

K

degF

fill_nocloud (boolean): Set to True to use fill values for cloud free regions rather than surface temperature. Default is False.

missing (float): The fill value to use when fill_nocloud is True.

opt_thresh (float): The optical depth required to trigger the cloud top temperature calculation. Default is 1.0.

units (str) : Set to desired units. Default is ‘degC’.

cloudfrac Cloud Fraction %

vert_type (str): The vertical coordinate type for the cloud thresholds. Must be ‘height_agl’, ‘height_msl’, or ‘pres’. Default is ‘height_agl’.

low_thresh (float): The low cloud threshold (meters for ‘height_agl’ and ‘height_msl’, pascals for ‘pres’). Default is 300 m (97000 Pa)

mid_thresh (float): The mid cloud threshold (meters for ‘height_agl’ and ‘height_msl’, pascals for ‘pres’). Default is 2000 m (80000 Pa)

high_thresh (float): The high cloud threshold (meters for ‘height_agl’ and ‘height_msl’, pascals for ‘pres’). Default is 6000 m (45000 Pa)

dbz Reflectivity dBZ

do_variant (boolean): Set to True to enable variant calculation. Default is False.

do_liqskin (boolean): Set to True to enable liquid skin calculation. Default is False.

mdbz Maximum Reflectivity dBZ

do_variant (boolean): Set to True to enable variant calculation. Default is False.

do_liqskin (boolean): Set to True to enable liquid skin calculation. Default is False.

geopt/geopotential Geopotential for the Mass Grid m2 s-2  
geopt_stag Geopotential for the Vertically Staggered Grid m2 s-2  
helicity Storm Relative Helicity m2 s-2 top (float): The top level for the calculation in meters. Default is 3000.0.
lat Latitude decimal degrees  
lon Longitude decimal degrees  
omg/omega Omega Pa s-1  
p/pres

Full Model Pressure

(in specified units)

Pa

hPa

mb

torr

mmhg

atm

units (str) : Set to desired units. Default is ‘Pa’.
pressure Full Model Pressure (hPa) hPa  
pvo Potential Vorticity PVU  
pw Precipitable Water kg m-2  
rh Relative Humidity %  
rh2 2m Relative Humidity %  
slp Sea Level Pressure

hPa

hPa

mb

torr

mmhg

atm

units (str) : Set to desired units. Default is ‘hPa’.
ter Model Terrain Height

m

km

dm

ft

mi

units (str) : Set to desired units. Default is ‘m’.
td2 2m Dew Point Temperature

degC

K

degF

units (str) : Set to desired units. Default is ‘degC’.
td Dew Point Temperature

degC

K

degF

units (str) : Set to desired units. Default is ‘degC’.
tc Temperature in Celsius degC  
th/theta Potential Temperature

K

degC

degF

units (str) : Set to desired units. Default is ‘K’.
temp Temperature (in specified units)

K

degC

degF

units (str) : Set to desired units. Default is ‘K’.
tk Temperature in Kelvin K  
times Times in the File or Sequence    
xtimes

XTIME Coordinate

(if applicable)

minutes since

start of

model run

 
tv Virtual Temperature

K

degC

degF

units (str) : Set to desired units. Default is ‘K’.
twb Wet Bulb Temperature

K

degC

degF

units (str) : Set to desired units. Default is ‘K’.
updraft_helicity Updraft Helicity m2 s-2

bottom (float): The bottom level for the calculation in meters. Default is 2000.0.

top (float): The top level for the calculation in meters. Default is 5000.0.

ua U-component of Wind on Mass Points

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
va V-component of Wind on Mass Points

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
wa W-component of Wind on Mass Points

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
uvmet10

10 m U and V Components of Wind

Rotated to Earth Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
uvmet

U and V Components of Wind

Rotated to Earth Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
wspd_wdir

Wind Speed and Direction (wind_from_direction)

in Grid Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
wspd_wdir10

10m Wind Speed and Direction (wind_from_direction)

in Grid Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
uvmet_wspd_wdir

Wind Speed and Direction (wind_from_direction)

Rotated to Earth Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
uvmet10_wspd_wdir

10m Wind Speed and Direction (wind_from_direction)

Rotated to Earth Coordinates

m s-1

km h-1

mi h-1

kt

ft s-1

units (str) : Set to desired units. Default is ‘m s-1’.
z/height Model Height for Mass Grid

m

km

dm

ft

mi

msl (boolean): Set to False to return AGL values. True is for MSL. Default is True.

units (str) : Set to desired units. Default is ‘m’.

zstag Model Height for Vertically Staggered Grid

m

km

dm

ft

mi

msl (boolean): Set to False to return AGL values. True is for MSL. Default is True.

units (str) : Set to desired units. Default is ‘m’.