GRIB (Fieldset) functions

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

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