Tropopause Height

The GrADS graphics package.

Tropopause Height

Postby amulya » Tue Oct 15, 2013 4:01 am

Dear WRF Forum User

I have WRF (ARWPOST) output. I would like to calculate and plot "Tropopause Height". How am I supposed to do this? Any help on this topic would be appreciated.

Following are the Variables in the WRF output.
Number of Variables = 110
lu_index 1 0 LAND USE CATEGORY (-)
u 21 0 x-wind component (m s-1)
v 21 0 y-wind component (m s-1)
w 21 0 z-wind component (m s-1)
ph 21 0 perturbation geopotential (m2 s-2)
phb 21 0 base-state geopotential (m2 s-2)
t 21 0 perturbation potential temperature (theta-t0) (K)
mu 1 0 perturbation dry air mass in column (Pa)
mub 1 0 base state dry air mass in column (Pa)
nest_pos 1 0 NEST_POS (-)
p 21 0 perturbation pressure (Pa)
pb 21 0 BASE STATE PRESSURE (Pa)
sr 1 0 fraction of frozen precipitation (-)
potevp 1 0 accumulated potential evaporation (W m-2)
snopcx 1 0 snow phase change heat flux (W m-2)
soiltb 1 0 bottom soil temperature (K)
q2 1 0 QV at 2 M (kg kg-1)
t2 1 0 TEMP at 2 M (K)
th2 1 0 POT TEMP at 2 M (K)
psfc 1 0 SFC PRESSURE (Pa)
u10 1 0 U at 10 M (m s-1)
v10 1 0 V at 10 M (m s-1)
qvapor 21 0 Water vapor mixing ratio (kg kg-1)
qcloud 21 0 Cloud water mixing ratio (kg kg-1)
qrain 21 0 Rain water mixing ratio (kg kg-1)
qice 21 0 Ice mixing ratio (kg kg-1)
qsnow 21 0 Snow mixing ratio (kg kg-1)
qgraup 21 0 Graupel mixing ratio (kg kg-1)
landmask 1 0 LAND MASK (1 FOR LAND, 0 FOR WATER) (-)
tslb 5 0 SOIL TEMPERATURE (K)
smois 5 0 SOIL MOISTURE (m3 m-3)
sh2o 5 0 SOIL LIQUID WATER (m3 m-3)
seaice 1 0 SEA ICE FLAG (-)
xicem 1 0 SEA ICE FLAG (PREVIOUS STEP) (-)
sfroff 1 0 SURFACE RUNOFF (mm)
udroff 1 0 UNDERGROUND RUNOFF (mm)
ivgtyp 1 0 DOMINANT VEGETATION CATEGORY (-)
isltyp 1 0 DOMINANT SOIL CATEGORY (-)
vegfra 1 0 VEGETATION FRACTION (-)
grdflx 1 0 GROUND HEAT FLUX (W m-2)
snow 1 0 SNOW WATER EQUIVALENT (kg m-2)
snowh 1 0 PHYSICAL SNOW DEPTH (m)
rhosn 1 0 SNOW DENSITY (kg m-3)
canwat 1 0 CANOPY WATER (kg m-2)
sst 1 0 SEA SURFACE TEMPERATURE (K)
qndropsour 21 0 Droplet number source ( /kg/s)
mapfac_m 1 0 Map scale factor on mass grid (-)
mapfac_mx 1 0 Map scale factor on mass grid, x direction (-)
mapfac_my 1 0 Map scale factor on mass grid, y direction (-)
mf_vx_inv 1 0 Inverse map scale factor on v-grid, x direction (-)
f 1 0 Coriolis sine latitude term (s-1)
e 1 0 Coriolis cosine latitude term (s-1)
sinalpha 1 0 Local sine of map rotation (-)
cosalpha 1 0 Local cosine of map rotation (-)
hgt 1 0 Terrain Height (m)
hgt_shad 1 0 Height of orographic shadow (m)
tsk 1 0 SURFACE SKIN TEMPERATURE (K)
rainc 1 0 ACCUMULATED TOTAL CUMULUS PRECIPITATION (mm)
rainnc 1 0 ACCUMULATED TOTAL GRID SCALE PRECIPITATION (mm)
pratec 1 0 PRECIP RATE FROM CUMULUS SCHEME (mm s-1)
raincv 1 0 TIME-STEP CUMULUS PRECIPITATION (mm)
snownc 1 0 ACCUMULATED TOTAL GRID SCALE SNOW AND ICE (mm)
graupelnc 1 0 ACCUMULATED TOTAL GRID SCALE GRAUPEL (mm)
edt_out 1 0 EDT FROM GD SCHEME (-)
swdown 1 0 DOWNWARD SHORT WAVE FLUX AT GROUND SURFACE (W m-2)
glw 1 0 DOWNWARD LONG WAVE FLUX AT GROUND SURFACE (W m-2)
olr 1 0 TOA OUTGOING LONG WAVE (W m-2)
xlat 1 0 LATITUDE, SOUTH IS NEGATIVE (degree_north)
xlong 1 0 LONGITUDE, WEST IS NEGATIVE (degree_east)
albedo 1 0 ALBEDO (-)
albbck 1 0 BACKGROUND ALBEDO (-)
emiss 1 0 SURFACE EMISSIVITY (-)
tmn 1 0 SOIL TEMPERATURE AT LOWER BOUNDARY (K)
xland 1 0 LAND MASK (1 FOR LAND, 2 FOR WATER) (-)
ust 1 0 U* IN SIMILARITY THEORY (m s-1)
pblh 1 0 PBL HEIGHT (m)
hfx 1 0 UPWARD HEAT FLUX AT THE SURFACE (W m-2)
qfx 1 0 UPWARD MOISTURE FLUX AT THE SURFACE (kg m-2 s-1)
lh 1 0 LATENT HEAT FLUX AT THE SURFACE (W m-2)
snowc 1 0 FLAG INDICATING SNOW COVERAGE (1 FOR SNOW COVER) (-)
pressure 21 0 Model pressure (hPa)
geopt 21 0 Geopotential (m2/s2)
height 21 0 Model height (km)
tk 21 0 Temperature (K)
tc 21 0 Temperature (C)
theta 21 0 Potential Temperature (K)
td 21 0 Dewpoint Temperature (C)
td2 1 0 Dewpoint Temperature at 2m (C)
rh 21 0 Relative Humidity (%)
clflo 1 0 Low Cloud Fraction (%)
clfmi 1 0 Mid Cloud Fraction (%)
clfhi 1 0 High Cloud Fraction (%)
rh2 1 0 Relative Humidity at 2m (%)
wspd 21 0 Wind Speed (m s-1)
wdir 21 0 Wind Direction (Degrees)
ws10 1 0 Wind Speed at 10 M (m s-1)
wd10 1 0 Wind Direction at 10 M (Degrees)
umet 21 0 Rotated wind component (m s-1)
vmet 21 0 Rotated wind component (m s-1)
u10m 1 0 Rotated wind component (m s-1)
v10m 1 0 Rotated wind component (m s-1)
slp 1 0 Sea Levelp Pressure (hPa)
dbz 21 0 Reflectivity (-)
max_dbz 1 0 Max Reflectivity (-)
cape 21 0 CAPE (J/kg)
cin 21 0 CIN (J/kg)
mcape 1 0 MCAPE (J/kg)
mcin 1 0 MCIN (J/kg)
lcl 1 0 LCL (meters AGL)
lfc 1 0 LFC (meters AGL)


With regards
Amulya
amulya
 
Posts: 5
Joined: Mon Jan 04, 2010 1:39 am

Re: Tropopause Height

Postby sahidul » Thu Jul 23, 2015 11:58 am

Have you got answer for your question? We are interested for the tropopause height calculation. Please help us
sahidul
 
Posts: 39
Joined: Wed Apr 30, 2008 1:46 am


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