da.corr.wavelength

These are the variables to apply the adjustment to. They are matched to the nearest wavelength in the target set.

Default: All scatterings, extinctions, and absorptions

This is the Ångström exponent used to perform wavelength adjustment when interpolation is not possible. When not set, data are simply left as undefined when they cannot be adjusted to the target wavelengths.

This is the maximum distance that the fallback Ångström exponent is valid for. This is used in conjunction with angstrom-wavelength to limit how far data are extrapolated.

This option only accepts numbers greater than or equal to 0. Undefined values are permitted, to indicate that the option is set but not to a specific value.

This is the wavelength of the Ångström exponent used to perform wavelength adjustment when interpolation is not possible. This is used to limit how far data are extrapolated when used in conjunction with angstrom-distance.

This option only accepts numbers strictly greater than 0. Undefined values are permitted, to indicate that the option is set but not to a specific value.

When enabled, this will cause the creation of outputs at the specified wavelengths, even if a matching one does not exist in the input.

These are the instrument suffixes to correct. For example S11 would usually specifies the reference nephelometer. This option is mutually exclusive with manual variable specification.

Default: All instrument suffixes

This is the smoothing applied to inputs before adjustment.

These are the wavelengths that the input data are adjusted to. Input data are adjusted to the nearest matching wavelength, if there are more data than wavelengths the further ones are left un-adjusted.

Default: 450,550,700

This option only accepts numbers strictly greater than 0.

This argument is used to specify the station used to look up variables that do not include a station as part of an archive read specification. The station is the three letter GAW station code of the location, such as BND. The argument accepts multiple stations specified as regular expressions and separated by : or ; or ,. For example BND,MLO and (BND|MLO) are two ways of selecting both the BND and MLO stations.

The special value allstations may also be specified to select all stations.

This argument may be split into multiple actual program arguments. Each part consists of one or more variable specifications separated by , (commas). The station and archive used if none are explicitly given are defined in the other arguments or inferred from system defaults. For example simply BsB_S11 selects the blue scattering from the S11 instrument and returns all cut sizes and metadata. If instead ::BsB_S11:pm10 is used then only PM10 scattering is returned. That is, the selection specifies "any" station and archive (the defaults are set in the other arguments) then requires that it has the "PM10" flavor. A specification such as bnd:BsB_S11,thd:BsB_S11 allows for data selection from multiple stations.

This may also be used to select a "record" type alias such as "S11a". In this mode all the variables defined in the alias are returned.

Finally the special value everything can be used to select all available data for the given station(s) and archive(s).

This argument may be split into multiple actual program arguments. This full list of time arguments defines a time bounds list that sets the range of data queried. The final resulting data are clipped to the given time bounds but any values that intersect them are returned.

This argument is used to specify the archive used to look up variables that do not include an archive as part of an archive read specification. The archive is the internal name, such as raw or clean_meta. The argument accepts multiple archives specified as regular expressions and separated by : or ; or ,. For example raw(_meta)? selects both the raw and raw_meta archives.

The special value allarchives may also be used to select all available archives.

This argument is used to specify the the file to read data from. If it is present and exists then data is read from the given file name instead of from standard input. Alternatively - (a single dash) may be used to explicitly specify standard input.

This will correct light scattering, absorption and extinctions present in the input to 450, 550, and 700 nm, using whichever is nearest to the original wavelength.

This will correct the nearest wavelength from S11 to 567 nm.