Meteorology

actvpr_mnmx_fao56	Compute actual vapor pressure via equation 17 as described in FAO 56.
actvpr_rhmean_fao56	Compute actual vapor pressure via equation 19 as described in FAO 56.
advect_variable	Use "highly accurate" spherical harmonics to estimate gradients and advect a variable horizontally on a global rectilinear grid.
advect_variable_cfd	Using centered-finite_differences (cfd) to estimate gradients, advect a variable horizontally on a regional or global rectilinear grid.
angmom_atm	Calculates the atmosphere's relative angular momentum.
beta_dfdy_rossby	Compute the Rossby parameter [beta=df/dy] which is the meridional variation of the Coriolis parameter.
brunt_vaisala_atm	Compute the Brunt-Vaisala frequency which is a measure of bouyancy in a continuously stratified atmosphere.
coriolis_param	Calculate the Coriolis parameter.
daylight_fao56	Compute maximum number of daylight hours as described in FAO 56.
dewtemp_trh	Calculates the dew point temperature given temperature and relative humidity.
dpres_plevel	Calculates the pressure layer thicknesses of a constant pressure level coordinate system.
eady_growth_rate	Compute the maximum Eady growth rate.
enthalpy	Compute atmospheric enthalpy.
epflux	Compute quasi-geostrophic Eliassen-Palm fluxes at isobaric levels using NCEP Reanalysis.
fire_index_haines	Computes the Haines fire index (aka: Lower Atmosphere Severity Index) from a sounding.
fluxEddy	Calculates time averaged eddy flux quantities.
grad_latlon_cfd	Compute the meridional and zonal gradients of a variable on a global or limited area rectilinear grid.
hydro	Computes geopotential height using the hydrostatic equation.
hyi2hyo	Interpolates from data on one set of hybrid levels to another set of hybrid levels.
hyi2hyo_Wrap	Interpolates from data on one set of hybrid levels to another set of hybrid levels and preserves metadata.
kf_filter	Extract equatorial waves by filtering in the Wheeler-Kiladis wavenumber-frequency domain.
latent_heat_water	Estimate latent heat flux for water: evaporization (condensation), melting (freezing) or sublimation (deposition).
lclvl	Calculates the pressure of the lifting condensation level.
mixhum_convert	Convert mixing ratio to specific humidity or vice-versa.
mixhum_ptd	Calculates the mixing ratio or specific humidity given pressure and dew point temperature.
mixhum_ptrh	Calculates the mixing ratio or specific humidity given pressure, temperature and relative humidity.
netlw_fao56	Compute longwave radiation as described in FAO 56.
netsw_fao56	Compute net shortwave radiation as described in FAO 56.
omega_to_w	Convert omega vertical velocity (Pa/s) to (m/s).
pot_temp	Compute potential temperature.
pot_temp_equiv	Compute the equivalent potential temperature using an approximation which does not use the lifting condensation temperature.
pot_temp_equiv_tlcl	Compute equivalent potential temperature using the lifting condensation temperature.
pot_vort_hybrid	Compute potential vorticity on hybrid levels and a global grid.
pot_vort_isobaric	Compute potential vorticity on isobaric levels and a global rectilinear grid.
prcwater_dp	Computes total column precipitable water of the rightmost dimension.
precip_rain_snow	Partition monthly precipitation totals into rain and snow amount using an empirical relationship.
pres2hybrid	Interpolates data on constant pressure levels to hybrid levels.
pres2hybrid_Wrap	Interpolates data on constant pressure levels to hybrid levels and retains metadata.
pres_sigma	Calculates the pressure at specified sigma levels.
prsatm_tz_fao56	Compute atmospheric pressure as described in FAO 56.
prsatm_z_fao56	Compute atmospheric pressure using the approximation described in FAO 56: Chapter 3; equation 7.
pslec	Computes sea level pressure from CCM/CAM hybrid model variables using the ECMWF formulation.
pslhor	Computes sea level pressure from CCM/CAM hybrid model variables using the ECMWF formulation and Trenberth's horizontal correction.
pslhyp	Computes sea level pressure using the hypsometric equation.
psychro_fao56	Computes the psychrometric constant [kPa/C] as described in FAO 56.
qvector_isobaric	Use "highly accurate" spherical harmonics to derive the Q-vector components on a global grid.
qvector_isobaric_cfd	Use centered finite differences to derive the Q-vector components on a global or regional grid.
radext_fao56	Compute extraterrestrial radiation for daily periods as described in FAO 56.
radsol2_fao56	Compute solar radiation from daily sunshine and day-of-year as described in FAO 56.
radsol3_hargreaves_fao56	Compute solar radiation derived from air temperature differences using Hargreaves method as described in FAO 56.
radsol_clrsky_fao56	Compute clear sky solar radiation as described in FAO 56.
radsol_fao56	Compute solar radiation via the 'Angstrom Formula' which uses extraterrestrial radiation and relative sunshine as described in FAO 56 (equation 35).
rdsstoi	Reads weekly/monthly compocp site and climatology grids.
refevt_hamon	Use the Hamon formulation to derive reference evapotranspiration.
refevt_hargreaves_fao56	Use the Hargreaves ETo equation to derive reference evapotranspiration as described in FAO 56.
refevt_penman_fao56	Use the full Penman-Monteith equation to derive reference evapotranspiration as described in FAO 56.
refevt_turc	Use the Turc ETo formulation to derive reference evapotranspiration.
refevt_turc_rh	Use the Turc ETo formulation with a correction for low relative humidity to derive reference evapotranspiration.
relhum	Calculates relative humidity given temperature, mixing ratio, and pressure.
relhum_ice	Calculates relative humidity with respect to ice, given temperature, mixing ratio, and pressure.
relhum_ttd	Calculates relative humidity given temperature and dew point temperature.
relhum_water	Calculates relative humidity with respect to water, given temperature, mixing ratio, and pressure.
rhum_fao56	Compute relative humidity as described in FAO 56.
rigrad_bruntv_atm	Compute the atmospheric gradient Richardson number and, optionally, the Brunt-Vaisala, buoyancy and shear.
satvpr_mean_fao56	Compute mean saturation vapor pressure using minimum and maximum temperature temperature as described in FAO 56.
satvpr_slope_fao56	Compute the slope of the saturation vapor pressure curve as described in FAO 56.
satvpr_tdew_fao56	Compute actual saturation vapor pressure as described in FAO 56.
satvpr_temp_fao56	Compute saturation vapor pressure using temperature as described in FAO 56.
satvpr_water_bolton	Estimate the saturation vapor pressure over water using Bolton's equation 10.
satvpr_water_stipanuk	Estimate the saturation vapor pressure over water using the Stipanuk approximation.
shear_stretch_deform	Using spherical harmonics, estimate the kinematic shear-deformation, stretch-deformation and total-deformation of a global horizontal (east-west) wind field.
shear_stretch_deform_cfd	Using centered-finite-differences, estimate the kinematic shear-deformation, stretch-deformation and total-deformation of a global or regional horizontal (east-west) wind field.
soil_heatflux_month_fao56	Compute soil heat flux for monthly periods as described in FAO 56.
static_energy_atm	Compute the atmospheric moist and dry static energy.
static_stability	Compute static stability.
stdatmus_p2tdz	Calculates the corresponding temperature, density, and height based on the 1976 U.S. standard atmosphere, given the pressure.
stdatmus_z2tdp	Calculates the corresponding temperature, density, and pressure based on the 1976 U.S. standard atmosphere, given the height.
tdew_actvpr_fao56	Compute dew point temperature as a function of actual vapor pressure as described in FAO 56.
temp_virtual	Compute atmospheric virtual temperature.
thornthwaite	Estimate the potential evapotranspiration (PET) via the Thornthwaite method.
tlcl_evp_bolton	Compute the lifting condensation level temperature using water vapor pressure.
tlcl_mixr_bolton	Compute the lifting condensation level temperature using mixing ratio and pressure.
tlcl_rh_bolton	Compute the lifting condensation level temperature using relative humidity.
tlcl_td_bolton	Compute the lifting condensation level temperature using dew point temperature.
u2_fao56	Compute 2-meter wind speed (m/s) as described in FAO 56.
uv2dv_cfd	Computes divergence using centered finite differences.
uv2vr_cfd	Computes relative vorticity using centered finite differences.
vapor_pres_rh	Compute vapor pressure given relative humidity (%) and saturation vapor pressure.
vibeta	Performs vertical integration using beta factors.
w_to_omega	Convert vertical velocity with units (m/s) to Pa/s.
wetbulb	Compute wetbulb temperature.
wetbulb_stull	Calculate wet bulb temperature at standard sea level pressure (1013.25 hPa) using the method of R.Stull.
wgt_vertical_n	Calculates a weighted vertical average and/or sum (integral).
wind_component	Calculate zonal and meridional wind components from wind speed and wind direction.
wind_direction	Calculate meteorological wind direction from zonal and meridional wind components.
wind_speed	Calculate wind speed from zonal and meridional wind components.
wind_stats	Given a sequence of wind speeds and directions, compute assorted wind-related statistics including the standard deviation of the wind direction.
z2geouv	Computes the geostrophic zonal and meridional wind components using geopotential height on isobaric levels (rectilinear grid only).
zonal_mpsi	Computes a zonal mean meridional stream function.
zonal_mpsi_Wrap	Computes a zonal mean meridional stream function and retains metadata.