calc

This module contains a variety of meteorological calculations.

Functions

advection(scalar, wind, deltas)	Calculate the advection of a scalar field by the wind.
convergence_vorticity(u, v, dx, dy)	Calculate the horizontal convergence and vertical vorticity of the horizontal wind.
coriolis_parameter(latitude)	Calculate the coriolis parameter at each point.
density(pressure, temperature, mixing[, ...])	Calculate density.
dewpoint(e)	Calculate the ambient dewpoint given the vapor pressure.
dewpoint_rh(temperature, rh)	Calculate the ambient dewpoint given air temperature and relative humidity.
dry_lapse(pressure, temperature)	Calculate the temperature at a level assuming only dry processes.
el(pressure, temperature, dewpt)	Calculate the equilibrium level.
equivalent_potential_temperature(pressure, ...)	Calculate equivalent potential temperature.
find_intersections(x, a, b[, direction])	Calculate the best estimate of intersection.
friction_velocity(u, w[, v, perturbation, axis])	Compute the friction velocity from the time series of velocity components.
geostrophic_wind(heights, f, dx, dy)	Calculate the geostrophic wind given from the heights or geopotential.
get_perturbation(ts[, axis])	Compute the perturbation from the mean of a time series.
get_wind_components(speed, wdir)	Calculate the U, V wind vector components from the speed and direction.
get_wind_dir(u, v)	Compute the wind direction from u and v-components.
get_wind_speed(u, v)	Compute the wind speed from u and v-components.
h_convergence(u, v, dx, dy)	Calculate the horizontal convergence of the horizontal wind.
heat_index(temperature, rh[, mask_undefined])	Calculate the Heat Index from the current temperature and relative humidity.
interpolate_nans(x, y[, kind])	Interpolate NaN values in y.
kinematic_flux(vel, b[, perturbation, axis])	Compute the kinematic flux from two time series.
lcl(pressure, temperature, dewpt[, ...])	Calculate the lifted condensation level (LCL) using from the starting point.
lfc(pressure, temperature, dewpt)	Calculate the level of free convection (LFC).
mixing_ratio(part_press, tot_press[, ...])	Calculate the mixing ratio of a gas.
moist_lapse(pressure, temperature)	Calculate the temperature at a level assuming liquid saturation processes.
nearest_intersection_idx(a, b)	Determine the index of the point just before two lines with common x values.
parcel_profile(pressure, temperature, dewpt)	Calculate the profile a parcel takes through the atmosphere.
potential_temperature(pressure, temperature)	Calculate the potential temperature.
pressure_to_height_std(pressure)	Convert pressure data to heights using the U.S.
psychrometric_vapor_pressure_wet(...[, ...])	Calculate the vapor pressure with wet bulb and dry bulb temperatures.
reduce_point_density(points, radius[, priority])	Return a mask to reduce the density of points in irregularly-spaced data.
relative_humidity_wet_psychrometric(...)	Calculate the relative humidity with wet bulb and dry bulb temperatures.
resample_nn_1d(a, centers)	Return one-dimensional nearest-neighbor indexes based on user-specified centers.
saturation_mixing_ratio(tot_press, temperature)	Calculate the saturation mixing ratio of water vapor.
saturation_vapor_pressure(temperature)	Calculate the saturation water vapor (partial) pressure.
tke(u, v, w[, perturbation, axis])	Compute turbulence kinetic energy.
v_vorticity(u, v, dx, dy)	Calculate the vertical vorticity of the horizontal wind.
vapor_pressure(pressure, mixing)	Calculate water vapor (partial) pressure.
virtual_potential_temperature(pressure, ...)	Calculate virtual potential temperature.
virtual_temperature(temperature, mixing[, ...])	Calculate virtual temperature.
windchill(temperature, speed[, ...])	Calculate the Wind Chill Temperature Index (WCTI).