hongshaorou/ATMOS
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trivial modification

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This commit is contained in:
Chunxiao Li 2021-06-07 12:54:34 +08:00
parent 73a9635c11
commit 1b956f4d84
1 changed files with 14 additions and 5 deletions
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19
pyatmos/utils/utils.py
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@ -1,6 +1,5 @@
import numpy as np import numpy as np
import warnings import warnings
from . import Const from . import Const
def vectorize(x): def vectorize(x):
@ -13,7 +12,7 @@ def vectorize(x):
except: except:
x = np.array([x]) x = np.array([x])
return x return x
def wraplon(lon): def wraplon(lon):
''' '''
Wrap a longitude in range of [0,360] to [-180,180]. Wrap a longitude in range of [0,360] to [-180,180].
@ -64,6 +63,16 @@ def hms_conver(h,m,s):
seconds = h*3.6e3 + m*60 + s seconds = h*3.6e3 + m*60 + s
return hours,seconds return hours,seconds
def ydhms_days(ydhms):
'''
Convert the form of hour/minute/second to hours and seconds.
Uasge:
hours,seconds = hms_conversion(h,m,s)
'''
days = ydhms[1] + ydhms[2]/24 + ydhms[3]/1440 + ydhms[4]/86400 - 1
return days
def alt_conver(alts,alt_type='geometric'): def alt_conver(alts,alt_type='geometric'):
''' '''
Fulfill conversions between geometric altitudes and geopotential altitudes. Fulfill conversions between geometric altitudes and geopotential altitudes.
@ -86,17 +95,17 @@ def alt_conver(alts,alt_type='geometric'):
alts = vectorize(alts) alts = vectorize(alts)
r0 = Const.r0 R0 = Const.R0
if alt_type == 'geometric': if alt_type == 'geometric':
zs = alts zs = alts
# from geometric altitude to geopotential altitude # from geometric altitude to geopotential altitude
hs = zs*r0/(r0+zs) hs = zs*R0/(R0+zs)
elif alt_type == 'geopotential': elif alt_type == 'geopotential':
hs = alts hs = alts
# from geopotential altitude to geometric altitude # from geopotential altitude to geometric altitude
zs = hs*r0/(r0-hs) zs = hs*R0/(R0-hs)
return zs,hs return zs,hs
def check_altitude(zs,z_range,mode): def check_altitude(zs,z_range,mode):