def calc_sounding_stats(_z, _th, _p, _qv):
T = met.T(_th, _p) # T (K)
pcl = met.CAPE(_z, _p, T, _qv, 1) # CAPE
mupcl = met.CAPE(_z, _p, T, _qv, 2) # MUCAPE
mlpcl = met.CAPE(_z, _p, T, _qv, 3) # MLCAPE
return (pcl, mupcl, mlpcl)
def plot_sounding(axes, z, th, p, qv, u=None, v=None):
"""Plot sounding data
This plots temperature, dewpoint and wind data on a Skew-T/Log-P plot.
This will also plot derived values such as wetbulb temperature and
label the surface based LCL, LFC and EL.
:parameter z: height values (1D array)
:parameter th: potential temperature at z heights (1D array)
:parameter p: pressure at z heights (1D array)
:parameter qv: water vapor mixing ratio at z heights (1D array)
:parameter u: U component of wind at z heights (1D array)
:parameter v: V component of wind at z heights (1D array)
:paramter axes: The axes instance to draw on
"""
# calculate Temperature and dewpoint
T = met.T(th, p) - met.T00 # T (C)
Td = met.Td(p, qv) - met.T00 # Td (C)
# calculate wetbulb temperature
Twb = np.empty(len(z), np.float32) # Twb (C)
for zlvl in range(len(z)):
Twb[zlvl] = met.Twb(z, p, th, qv, z[zlvl])
# Get surface parcel CAPE and temperature / height profiles
pcl = met.CAPE(z, p, T + met.T00, qv, 1) # CAPE
T_parcel = pcl['t_p'] - met.T00 # parcel T (C)
T_vparcel = pcl['tv_p'] - met.T00 # parcel Tv (C)
T_venv = met.T(pcl['thv_env'], pcl['pp']) - met.T00 # Env Tv (C)
# plot Temperature, dewpoint, wetbulb and lifted surface parcel profiles on skew axes
axes.semilogy(T + skew(p),
p,
basey=math.e,
color=linecolor_T,
linewidth=linewidth_T)
axes.semilogy(Td + skew(p),
p,
basey=math.e,
color=linecolor_Td,
linewidth=linewidth_Td)
axes.semilogy(T_parcel + skew(pcl['pp']),
pcl['pp'],
basey=math.e,
color=linecolor_Parcel_T,
linewidth=linewidth_Parcel_T)
axes.semilogy(Twb + skew(p),
p,
basey=math.e,
color=linecolor_Twb,
linewidth=linewidth_Twb)
# plot virtual temperature of environment and lifted parcel
axes.semilogy(T_venv + skew(pcl['pp']),
pcl['pp'],
basey=math.e,
color=linecolor_Tve,
linewidth=linewidth_Tve,
linestyle=linestyle_Tve)
axes.semilogy(T_vparcel + skew(pcl['pp']),
pcl['pp'],
basey=math.e,
color=linecolor_Tvp,
linewidth=linewidth_Tvp,
linestyle=linestyle_Tvp)
# Add labels for levels based on surface parcel
#debug print(pcl['lfcprs'], pcl['lclprs'], pcl['elprs'], pcl['ptops'])
if (pcl['lfcprs'] > 0):
label_m(Tmax - .5, pcl['lfcprs'], '--LFC', axes)
if (pcl['lclprs'] > 0):
label_m(Tmax - .5, pcl['lclprs'], '--LCL', axes)
if (pcl['elprs'] > 0):
label_m(Tmax - .5, pcl['elprs'], '--EL', axes)
if (pcl['ptops'] > 0):
label_m(Tmax - .5, pcl['ptops'], '--TOPS', axes)
# plot labels for std heights
for plvl in plevs_std:
zlvl = pymeteo.interp.interp_height(z, p, plvl)
label_m(Tmin - .5, plvl, str(int(zlvl)), axes)
# plot wind barbs on left side of plot. move this? right side?
if (u is not None and v is not None):
#draw_wind_line(axes)
for i in np.arange(0, len(z), 2):
if (p[i] > pt_plot):
plt.barbs(Tmin + 4, p[i], u[i], v[i], length=5, linewidth=.5)
a=pot
zdat=h/1000
axs[0].plot(a,zdat,c='r')
axs[0].set_title('Th')
a=qv
axs[1].plot(a,zdat,c='g')
axs[1].set_title('qv')
a=rh
axs[2].plot(a,zdat,c='b')
axs[2].set_title('Rh')
plt.savefig(dirpic+"sounding_t_th_qc_profs.png",dpi=300)
plt.close()
####
fout=dirpic+'Sounding_t_lnp.png'
skewtpy.myplot_chenjh('ICASE', zdat, pot, pres*100, qv*1e-3, u, v, fout,title='Sounding')
cape=met.CAPE(zdat,pres*100,t+273.15,qv*1e-3,1)
print cape[]
fpath='/Volumes/MacHD/Work/Papers/ICMW2020/Data/'+'input_sounding_bk'
onedim=readAscii(fpath,0)
pres=[]
pot=[]
qv=[]
z=[]
u=[]
v=[]
pres.append(onedim[0])
pot.append(onedim[1])
qv.append(onedim[2])
z.append(0)
u.append(0)
v.append(0)