torchMWRT.profile

Classes

AtmProfile(*, temperature, height, pressure)

Atmospheric profile container for torchMWRT radiative transfer.

class torchMWRT.profile.AtmProfile(*, temperature, height, pressure, rh=None, q=None, e=None, lwc=None, iwc=None, emissivity=None)

Bases: object

Atmospheric profile container for torchMWRT radiative transfer.

Parameters:

• temperature (torch.Tensor or numpy.ndarray or xarray.DataArray) – Atmospheric temperature profile in K.

• height (torch.Tensor or numpy.ndarray or xarray.DataArray) – Geometric height profile in m above mean sea level.

• pressure (torch.Tensor or numpy.ndarray or xarray.DataArray) – Atmospheric pressure profile in hPa.

• rh (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Relative humidity as fraction (0-1).

• q (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Specific humidity in kg/kg.

• e (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Vapor pressure in hPa.

• lwc (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Liquid water content in g/m^3.

• iwc (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Ice water content in g/m^3.

• emissivity (torch.Tensor or numpy.ndarray or xarray.DataArray, optional) – Surface emissivity, scalar or frequency-dependent array.

Raises:

• ValueError – If humidity inputs are not provided exactly once.

• SystemExit – If height is not strictly monotonic.

Notes

• Expected units: height in m above mean sea level, pressure in hPa, temperature in K, and cloud water contents in g/m^3.

• Exactly one humidity input must be provided: relative humidity rh, specific humidity q, or vapor pressure e.

• All profile inputs are converted to torch tensors on a common dtype/device.

• If vertical levels are descending, the profile is flipped so internal computations use ascending height.

Provenance: profile-orientation handling and antenna-relative height normalization are adapted from the profile setup logic in pyrtlib.tb_spectrum.TbCloudRTE.