GRIB (Fieldset) functions

This is the list of all the functions related to GRIB (Fieldset) data.

`abs()`	Computes the absolute value
`absolute_vorticity()`	Computes the absolute vorticity from a relative vorticity `Fieldset`
`accumulate()`	Adds up the values per field in a `Fieldset`
`acos()`	Computes the arc cosine
`append()`	Appends the given data to file
`asin()`	Computes the arc sine
`atan()`	Computes the arc tangent
`atan2()`	Computes the arc tangent of 2 `Fieldset` objects
`average()`	Computes the average per field in a `Fieldset`
`average_ew()`	Computes the zonal averages for each field in a `Fieldset`
`average_ns()`	Computes the meridional averages for each field in a `Fieldset`
`base_date()`	Returns the base date(s) of a given `Fieldset`
`bearing()`	Computes the bearings with respect to a reference in a `Fieldset` point
`bitmap()`	Converts numbers to missing values in a `Fieldset`
`cleanfile()`	Removes unwanted header padding from GRIB and `Bufr` files
`convolve()`	Performs spatial convolution on a `Fieldset`
`corr_a()`	Computes the area-weighted correlation for each field in a `Fieldset`
`cos()`	Computes the cosine
`coslat()`	Generates a field with the cosine of the latitudes in a `Fieldset`
`covar()`	Returns the covariance of two `Fieldset` objects
`covar_a()`	Computes the area-weighted covariance for each field in a `Fieldset`
`datainfo()`	Returns information on missing values in a `Fieldset`
`dataset_to_fieldset()`	Converts an xndarray dataset to a `Fieldset`
`deacc()`	De-accumulate values in a `Fieldset`
`describe()`	Prints summary of the contents of a `Fieldset`
`dewpoint_from_relative_humidity()`	Computes the dewpoint for a given temperature and relative humidity
`dewpoint_from_specific_humidity()`	Computes the dewpoint for a given specific humidity and pressure
`direction()`	Computes the wind direction
`distance()`	Computes the distances in a `Fieldset` or `Geopoints` to a reference point
`div()`	Computes the integer part of a divison
`divergence()`	Computes the horizontal divergence of a vector `Fieldset`
`divrot()`	Computes the rotational wind from a spectral vorticity `Fieldset`
`divwind()`	Computes the divergent wind from a spectral divergence `Fieldset`
`duplicate()`	Duplicates a field N times
`eccharts()`	Retrieves and plots ecCharts layers
`eqpott_m()`	Computes the equivalent potential temperature on model levels
`eqpott_p()`	Computes the equivalent potential temperature on pressure levels
`exp()`	Computes the exponential
`file()`	Returns a file handler for the specified filename
`fill_missing_values_ew()`	Fills missing values along the horizontal line
`find()`	Find locations of values in a `Fieldset`
`first_derivative_x()`	Computes first West-East derivative of a `Fieldset`
`first_derivative_y()`	Computes first South-North derivative of a `Fieldset`
`float()`	Converts int GRIB to float GRIB
`frequencies()`	Computes the frequencies of a `Fieldset`
`geo_to_grib()`	Converts `Geopoints` data to GRIB
`geostrophic_wind()`	Computes the geostrophic wind on pressure levels in a `Fieldset`
`gfind()`	Finds values in field and returns the result as `Geopoints`
`gradient()`	Computes horizontal gradient of a `Fieldset`
`grib_get()`	Reads GRIB headers using ecCodes keys
`grib_get_double()`	Reads GRIB headers using ecCodes keys
`grib_get_double_array()`	Reads GRIB headers using ecCodes keys
`grib_get_long()`	Reads GRIB headers using ecCodes keys
`grib_get_long_array()`	Reads GRIB headers using ecCodes keys
`grib_get_string()`	Reads GRIB headers using ecCodes keys
`grib_indexes()`	Returns list of indexes into the fields of the Fieldset
`grib_set()`	Writes GRIB headers using ecCodes keys
`grib_set_double()`	Writes GRIB headers using ecCodes keys
`grib_set_long()`	Writes GRIB headers using ecCodes keys
`grib_set_long_array()`	Writes GRIB headers using ecCodes keys
`grib_set_string()`	Writes GRIB headers using ecCodes keys
`grib_to_geo()`	Converts GRIB data into `Geopoints`
`grib_vectors()`	Combines GRIB scalar fields into vector data
`gribsetbits()`	Sets GRIB packing bit width
`grid_cell_area()`	Computes the grid cell area in a `Fieldset`
`indexes()`	Builds a `Fieldset` containing each gridpoint’s indexed position in the given vector
`int()`	Integer part
`integer()`	Converts float GRIB to int GRIB
`integral()`	Computes the surface integral of a `Fieldset`
`integrate()`	Computes the average weighted by the gridcell area for each field in `Fieldset`
`interpolate()`	Interpolates `Fieldset` values to the specified location
`laplacian()`	Computes the horizontal Laplacian of `Fieldset`
`latitudes()`	Returns the latitudes of a `Fieldset` or `Geopoints`
`log()`	Computes the natural logarithm
`log10()`	Computes the base 10 logarithm
`longitudes()`	Returns the longitudes from a `Fieldset` or `Geopoints`
`lookup()`	Builds an output `Fieldset` using the values in the first as indices into the second
`ls()`	Dumps metadata for each message in a `Fieldset`
`mask()`	Generates masks for a `Fieldset` or `Geopoints`
`maverageview()`	Creates an average view
`max()`	Maximum
`maxvalue()`	Maximum value of a `Fieldset`
`mcross_sect()`	Generates data for the cross section view
`mean()`	Returns the mean of the values in a `Fieldset` or `Geopoints`
`mean_ew()`	Generates a `Fieldset` out of East-West means
`merge()`	Merges 2 sets of `Fieldset` or `Geopoints`
`met3d_prepare()`	Retrieves and prepare GRIB data for Met3D
`min()`	Minimum
`minvalue()`	Minimum value of a `Fieldset` or `Geopoints`
`mixing_ratio()`	Computes the mixing ratio from specific humidity
`ml_to_hl()`	Interpolates a model level `Fieldset` to height levels
`mod()`	Computes the integer remainder of a divison
`mvert_prof()`	Generates data for the vertical profile view
`mvl_geopotential_on_ml()`	Computes the geopotential on model levels for a `Fieldset`
`mvl_ml2hPa()`	Interpolates a `Fieldset` on model levels to pressure levels (in hPa)
`mxs_average()`	Generates data for the average view
`nearest_gridpoint()`	Returns the nearest grid point value from a `Fieldset`
`nearest_gridpoint_info()`	Returns the nearest grid point value from a `Fieldset`
`nobitmap()`	Converts missing values to numbers in a `Fieldset`
`percentile()`	Computes a set of percentiles in a `Fieldset`
`pl_to_pl()`	Interpolates pressure level fields to pressure levels
`poly_mask()`	Generates polygon masks for a `Fieldset`
`pott_m()`	Computes the potential temperature on model levels
`pott_p()`	Computes the potential temperature on pressure levels
`pressure()`	Computes the pressure on model levels in a `Fieldset` (deprecated)
`pressure_derivative()`	Computes the verical pressure derivative
`q_vector()`	Computes the Q-vector
`read()`	Filters and interpolates `Fieldset` data
`read()`	Reads the given file and returns a variable of the appropriate type
`regrid()`	Regridding and derivatives
`relative_humidity_from_dewpoint()`	Computes the relative humidity for a given temperature and dewpoint
`relative_humidity_from_specific_humidity()`	Computes the relative humidity from specific humidity
`relhum()`	Computes the relative humidity from specific humidity
`reprojection()`	Repoject satellite view GRIB data onto a latlon grid
`retrieve()`	Retrieves data from MARS
`rmask()`	Generates masks based on a radius around a point for `Fieldset`
`rms()`	Computes he pointwise root mean square for `Fieldset`
`rms_a()`	Computes the area-weighted root mean square for `Fieldset`
`saturation_mixing_ratio()`	Computes the saturation mixing ratio for a given temperature and pressure
`saturation_vapour_pressure()`	Computes the saturation vapour pressure for a given temperature
`second_derivative_x()`	Computes the second West-East derivative of a `Fieldset`
`second_derivative_y()`	Computes the econd South-North derivative of a `Fieldset`
`select()`	Filters `Fieldset` data by ecCodes keys with metadata indexing
`seqpott_m()`	Computes the saturation equivalent potential temperature on model levels
`seqpott_p()`	Computes the saturation equivalent potential temperature on pressure levels
`set_latitudes()`	Sets the latitudes in a `Fieldset` or `Geopoints`
`set_longitudes()`	Sets the longitudes in a `Fieldset` or `Geopoints`
`set_values()`	Sets the values in a `Fieldset` or `Geopoints`
`sgn()`	Computes the sign
`shear_deformation()`	Compute the shear deformation of a vector `Fieldset`
`sin()`	Computes the sine
`sinlat()`	Generates a field with the cosine of the latitudes in a `Fieldset`
`smooth_gaussian()`	Performs spatial smoothing on a `Fieldset`
`smooth_n_points()`	Performs spatial smoothing on a `Fieldset`
`solar_zenith_angle()`	Computes the solar zenith angle for a `Fieldset`
`sort()`	Sorts a `Fieldset`
`spec_graph()`	Defines visualisation for spectrum of GRIB data
`specific_humidity_from_dewpoint()`	Computes the specific humidity for a given dewpoint and pressure
`speed()`	Computes the wind speed from a u and v component `Fieldset`
`sqrt()`	Computes the square root
`static_stability()`	Computes the static stability
`stdev()`	Returns the standard deviation of all the fields in a `Fieldset`
`stdev_a()`	Computes the area-weighted standard deviation for each field in a `Fieldset`
`streamfn()`	Computes the stream function from a spectral vorticity `Fieldset`
`stretch_deformation()`	Compute the stretch deformation of a vector `Fieldset`
`sum()`	Computes the sum of the values in a `Fieldset` or `Geopoints`
`surrounding_points_indexes()`	Returns the indexes of the four surrounding grid points in a `Fieldset`
`tan()`	Computes the tangent
`tanlat()`	Generates a field with the tangent of the latitudes in a `Fieldset`
`thermo_grib()`	Generates thermodynamical profile from GRIB
`thickness()`	Computes the pressure thickness on model levels in a `Fieldset` (deprecated)
`to_dataset()`	Converts a `Fieldset` to an xndarray dataset
`unipressure()`	Computes the pressure on model levels in a `Fieldset`
`unithickness()`	Computes the pressure thickness of model levels in a `Fieldset`
`univertint()`	Performs a vertical integration for a `Fieldset`
`uvwind()`	Computes u/v from a spectral vorticty and divegence `Fieldset`
`valid_date()`	Returns the valid date(s) of a given `Fieldset`
`values()`	Returns the values from a data object
`vapor_prepare()`	Prepares and visualises GRIB data in Vapor
`vapour_pressure()`	Computes the vapour pressure for a given specific humidity and pressure
`var()`	Returns the variance of all the fields in a `Fieldset`
`var_a()`	Computes the area-weighted variance for each field in a `Fieldset`
`velpot()`	Computes the velocity potential from a spectral divergence `Fieldset`
`vertint()`	Performs a vertical integration for a `Fieldset` (deprecated)
`vorticity()`	Computes the relative vorticity of a vector `Fieldset`
`w_from_omega()`	Computes the vertical velocity in m/s from pressure velocity
`write()`	Writes/appends the given data to file
`xy_from_polar()`	Computes the x and y components from polar components