{
    "info": {
        "author": "Prasanth Nair",
        "author_email": "prasanthhn@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 6 - Mature",
            "Intended Audience :: Science/Research",
            "License :: OSI Approved :: BSD License",
            "Operating System :: OS Independent",
            "Programming Language :: Python",
            "Topic :: Scientific/Engineering :: Astronomy",
            "Topic :: Scientific/Engineering :: Physics"
        ],
        "description": "Refractive index of air\n=======================\n\n.. _NIST online refractive index of air calculator: \n    http://emtoolbox.nist.gov/Wavelength/Documentation.asp\n.. _pip: http://pypi.python.org/pypi/pip\n.. _easy_install: packages.python.org/distribute/easy_install.html\n\nCode for calculating refractive index of air, under varying atmospheric\nconditions, is provided in this module. Functions for conversion of\nwave length of light in vacuum to that in air, and vice-versa are also\ndefined.\n\nThe code is based on the documentation for the `NIST online refractive\nindex of air calculator`_.\n\nExamples\n--------\n\nRefractive index can be calculated using two different equations: one\ndue to Edl\u00e9n and another due to Ciddor.\n\n::\n\n  >>> ref_index.ciddor(wave=633.0, t=20, p=101325, rh=20)\n  1.0002716285340578\n  >>> ref_index.edlen(wave=633.0, t=20, p=101325, rh=20)\n  1.0002716291691649\n  >>> ref_index.edlen(wave=633.0, t=20, p=101325, rh=80)\n  1.0002711197635226\n  >>> ref_index.ciddor(wave=633.0, t=20, p=101325, rh=80)\n  1.0002711183472626\n  >>> ref_index.edlen(wave=633.0, t=60, p=101325, rh=80)\n  1.0002339748542823\n  >>> ref_index.ciddor(wave=633.0, t=60, p=101325, rh=80)\n  1.0002340241754055\n\nConversion of wave length of light in vacuum to that in air, and\nvice-versa. Both of these functions use the Ciddor equation, as\nimplemented in ``ciddor_ri()`` and ``ciddor()``.\n\n::\n\n  >>> ref_index.vac2air(633.0)\n  632.82500476826874\n  >>> ref_index.air2vac(632.82500476826874)\n  633.00000139949032\n\n  >>> ref_index.vac2air(np.array([633.0, 550.0, 400.0]))\n  array([ 632.82500477,  549.84723175,  399.88692724])\n  >>> x = ref_index.vac2air(np.array([633.0, 550.0, 400.0]))\n  >>> ref_index.air2vac(x)\n  array([ 633.0000014 ,  550.00000164,  400.00000243])\n\n\nNote that the reversibility of ``air2vac()`` is ~1e-5nm.\n\nDefault temperature is 15\u2218C, pressure is 101325Pa, relative humidity is\n0, and CO2 concentration is 450\u00b5mole/mole. All these can be changed.\n\n::\n\n  >>> ref_index.vac2air(633.0, t=20, p=100000.0, rh=50)\n  632.83051710791892\n  >>> ref_index.air2vac(632.83051710791892, t=20, p=100000.0, rh=50)\n  633.00000131884678\n\n\nFor more details please see the docstring for the module. Detailed\ndescription of the equations can be found in the `NIST documentation`__.\n\n__ `NIST online refractive index of air calculator`_\n\nInstallation\n------------\n\nThe module can be installed using `pip`_ and `easy_install`.\n\n::\n\n  $ pip install ref_index\n\nor, \n\n::\n\n  $ easy_install ref_index\n\n\nCredits\n-------\n\nAll equations used in this module come from the documentation for the\n`NIST online refractive index calculator`__, written by Jack A. Stone\nand Jay H. Zimmerman. \n\n__ `NIST online refractive index of air calculator`_\n\nPlease send comments and suggestions to the email id `prasanthhn` in\nthe ``gmail.com`` domain.",
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