Add first module : constant.py

umetpy/constants.py

@@ -2,6 +2,8 @@
 # Distributed under the terms of the BSD 3-Clause License.
 # SPDX-License-Identifier: BSD-3-Clause
 
+# pylint: disable=line-too-long
+
 r"""A collection of meteorologically significant constant and thermophysical property values.
 
 Earth
@@ -70,13 +72,17 @@ molecular_weight_ratio   :math:`\epsilon`  epsilon     :math:`\text{None}`
 .. [8] [Picard2008]_
 """  # noqa: E501
 
+# pylint: enable=line-too-long
+
+# pylint: disable=invalid-name
+
 # Earth
 earth_gravity = g = 9.80665  # 'm / s^2'
 Re = earth_avg_radius = 6371008.7714  # 'm'
 G = gravitational_constant = 6.67430e-11  # 'm^3 / kg / s^2'
 GM = geocentric_gravitational_constant = 3986005e8  # 'm^3 / s^2'
 omega = earth_avg_angular_vel = 7292115e-11  # 'rad / s'
-d = earth_sfc_avg_dist_sun = 149597870700.          # 'm'
+d = earth_sfc_avg_dist_sun = 149597870700.0  # 'm'
 S = earth_solar_irradiance = 1360.8  # 'W / m^2'
 delta = earth_max_declination = 23.45  # 'degrees'
 earth_orbit_eccentricity = 0.0167  # 'dimensionless'
@@ -109,13 +115,12 @@ Cp_d = dry_air_spec_heat_press = (
 )
 Cv_d = dry_air_spec_heat_vol = Cp_d / dry_air_spec_heat_ratio
 # TODO : check unit conversion
-rho_d = dry_air_density_stp = (1000., 'mbar') / (Rd * 273.15, 'K'))
-).to('kg / m^3')
+# rho_d = dry_air_density_stp = (1000., 'mbar') / (Rd * 273.15, 'K')))  # 'kg / m^3'
 
 # General meteorology constants
-P0 = pot_temp_ref_press = 1000.     # 'mbar'
+P0 = pot_temp_ref_press = 1000.0  # 'mbar'
 # TODO : check unit conversion
-kappa = poisson_exponent = (Rd / Cp_d).to('dimensionless')
+kappa = poisson_exponent = Rd / Cp_d  # 'dimensionless'
 gamma_d = dry_adiabatic_lapse_rate = g / Cp_d
 # TODO : check unit conversion
-epsilon = molecular_weight_ratio = (Mw / Md).to('dimensionless')
+epsilon = molecular_weight_ratio = Mw / Md  # 'dimensionless'