rayference / ussa1976

U.S. Standard Atmosphere 1976

USSA1976

The U.S. Standard Atmosphere 1976 model.

This package implements the atmosphere thermophysical model provided by the National Aeronautics and Space Administration technical report NASA-TM-X-74335 published in 1976 and entitled U.S. Standard Atmosphere, 1976.

Features

• Run the U.S. Standard Atmosphere 1976 model on your custom altitude grid

• Compute all 14 atmospheric variables of the model as a function of altitude:

  • air temperature
  • air pressure
  • number density (of individual species)
  • air number density
  • air density
  • air molar volume
  • air pressure scale height
  • air particles mean speed
  • air particles mean free path
  • air particles mean collision frequency
  • speed of sound in air
  • air dynamic viscosity
  • air kinematic viscosity
  • air thermal conductivity coefficient

• Results stored in NetCDF format
• Command-line interface
• Python interface

Requirements

• Python 3.8+

Installation

You can install USSA1976 via pip from PyPI:

$ pip install ussa1976

Usage

• For the Command-line interface, please see the Command-line Reference for details.
• For the Python interface, refer to the User Guide.

Contributing

Contributions are very welcome. To learn more, see the Contributor Guide.

License

Distributed under the terms of the MIT license, USSA1976 is free and open source software.

Issues

If you encounter any problems, please file an issue along with a detailed description.

Credits

This project was generated from @cjolowicz's Hypermodern Python Cookiecutter template.

ussa1976's Issues

Provide units for all quantity-parameters in docstrings

Add command-line interface

Remove obsolete `units` module

Add `long_name` in variables metadata

Beta Constant Incorrect

constants.py has an incorrect constant in line 106. Currently it is in the file as 1.457e6 [units]. Per the reference (eqn 51), it should be 1.457e-6 [units]

Rename `create` -> `compute`

Remove `make`

Upload package to `conda-forge`

Provide default value for parameter `z` in `compute`