AbsorptionLookupTable

class pyarts3.arts.AbsorptionLookupTable(*args, **kwargs)

A table of lookup calculations.

Effectively holds a Tensor4 of pre-computed cross-section data. This table is used to interpole to a pressure, temperature, water vmr, and frequency grid.

Overview

Method	`readxml()`	Read variable from file.
Method	`savexml()`	Saves variable to file.
Static Method	`fromxml()`	Create variable from file.
`AscendingGrid`	`f_grid`	The frequency grid in Hz
`DescendingGrid`	`log_p_grid`	The pressure grid in log Pa [same dimension as atm]
`Vector`	`t_atmref`	Local grids so that pressure interpolation may work
`AscendingGrid`	`t_pert`	The temperature perturbation grid in K [any number of elements or empty for nothing]
`AscendingGrid`	`w_pert`	The humidity perturbation grid in fractional units [any number of elements or empty for nothing]
`Vector`	`water_atmref`	Local grids so that pressure interpolation may work
`Tensor4`	`xsec`	The absorption cross section table
Operator	`__eq__()`	Return self==value.
Operator	`__format__()`	__format__(self, arg: str, /) -> str
Operator	`__ge__()`	Return self>=value.
Operator	`__getstate__()`	Helper for pickle.
Operator	`__gt__()`	Return self>value.
Operator	`__hash__()`	Return hash(self).
Operator	`__init__()`	__init__(self, arg: pyarts3.arts.AbsorptionLookupTable) -> None
Operator	`__le__()`	Return self<=value.
Operator	`__lt__()`	Return self<value.
Operator	`__ne__()`	Return self!=value.
Operator	`__repr__()`	__repr__(self) -> str
Operator	`__str__()`	__str__(self) -> str

Constructors

__init__(self) → None
__init__(self, arg: pyarts3.arts.AbsorptionLookupTable) → None

Methods

readxml(self, file: str) → str

Read variable from file.

Parameters:: file (str) – A file that can be read.
Raises:: RuntimeError – For any failure to read.
Returns:: file – The file path found (may differ from input due to environment variables).
Return type:: str

savexml(self, file: str, type: str = 'ascii', clobber: bool = True) → str

Saves variable to file.

Parameters:

file (str) – The path to which the file is written. Note that several of the options might modify the name or write more files.
type (str, optional) – Type of file to save. See FileType for options. Defaults is “ascii”.
clobber (bool, optional) – Overwrite existing files or add new file with modified name? Defaults is True.

Raises:

RuntimeError – For any failure to write.

Returns:

file – The file saved. May differ from input.

Return type:

str

Static Methods

fromxml(file: str) → pyarts3.arts.AbsorptionLookupTable

Create variable from file.

Parameters:: file (str) – A file that can be read
Raises:: RuntimeError – For any failure to read.
Returns:: artstype – The variable created from the file.
Return type:: T

Attributes

f_grid: AscendingGrid: The frequency grid in Hz

log_p_grid: DescendingGrid: The pressure grid in log Pa [same dimension as atm]

t_atmref: Vector: Local grids so that pressure interpolation may work

t_pert: AscendingGrid: The temperature perturbation grid in K [any number of elements or empty for nothing]

w_pert: AscendingGrid: The humidity perturbation grid in fractional units [any number of elements or empty for nothing]

water_atmref: Vector: Local grids so that pressure interpolation may work

xsec: Tensor4: The absorption cross section table

Operators

__eq__(value, /): Return self==value.

__format__(self, arg: str, /) → str

__ge__(value, /): Return self>=value.

__getstate__(): Helper for pickle.

__gt__(value, /): Return self>value.

__hash__(): Return hash(self).

__init__(self) → None
__init__(self, arg: pyarts3.arts.AbsorptionLookupTable) → None

__le__(value, /): Return self<=value.

__lt__(value, /): Return self<value.

__ne__(value, /): Return self!=value.

__repr__(self) → str

__str__(self) → str