def saturated_vapor_pressure2(t):
    """Calculate pressure of saturated water vapor at specified temperature as described at
    http://wahiduddin.net/calc/density_altitude.htm
    Parameters
    ---------
    t : float
        Temperature [C]

    Returns
    -------
    float
        Pressure [mb]
    """
    c0 = 6.1078
    c1 = 7.5
    c2 = 237.3
    return c0 * 10 ** (c1 * t / (c2 + t))
