From 140d77a9baaa91349f169922b2dd482b83e4c671 Mon Sep 17 00:00:00 2001
From: Chunxiao Li <lcx366@126.com>
Date: Mon, 7 Jun 2021 12:56:45 +0800
Subject: [PATCH] trivial modification

---
 pyatmos/utils/Const.py | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/pyatmos/utils/Const.py b/pyatmos/utils/Const.py
index 027d354..135efca 100644
--- a/pyatmos/utils/Const.py
+++ b/pyatmos/utils/Const.py
@@ -1,10 +1,26 @@
+import numpy as np
 # Some physical constants at sea level
-r0 = 6371.0008 # volumetric radius for the Earth, [km] 
+R0 = 6371.0008 # volumetric radius of the Earth, [km] 
 g0 = 9.80665 # standard gravity acceleration, [m/s^2]
 M0 = 28.9644 # mean molecular weight, [kg/kmol]
 R_air = 8314.32/M0 # gas constant for dry air, [J/kg/K]
 gamma = 1.4 # specific heat ratio, namely the ratio of constant-pressure to constant-volume specific heat
-t0 = 288.15 # temperature, [K]
+T0 = 288.15 # temperature, [K]
 p0 = 101325 # pressure, [Pa]
-h0 = 0 # height, [km]   
-   
\ No newline at end of file
+h0 = 0 # height, [km] 
+
+pi = np.pi
+twopi = 2*np.pi  
+fourpi = 4*np.pi
+degrad = pi / 180
+al10 = np.log(10)
+
+# AVOGAD is Avogadro's number in mks units (molecules/kmol)
+avogad = 6.02257e26
+pivo2 = 1.5707963
+pivo4 = 1.5707963  
+
+# RSTAR is the universal gas-constant in mks units (joules/K/kmol)
+rstar = 8314.32
+
+x = np.arange(0.5,48)/24
\ No newline at end of file