xan/xmet
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Get better at parsing heights at different pressures

Browse source
This commit is contained in:
XANTRONIX 2025-03-01 21:04:43 -05:00
parent 16693a686b
commit d1269d0e2f
1 changed files with 50 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

71
lib/xmet/rawins.py
View file

@ -110,37 +110,62 @@ class RawinsObs():
'speed': wind_speed
}
TTAA_HEIGHTS = {
TTAA_PRESSURES = {
'00': 1000, '92': 925, '85': 850,
'70': 700, '50': 500, '40': 400,
'30': 300, '25': 250, '20': 200,
'15': 150, '10': 100,
}
def calc_1000mb_height(self, num: float):
if num >= 500:
return 0 - (num - 500)
def code_to_pressure(self, code: str):
if code in self.TTAA_PRESSURES:
return self.TTAA_PRESSURES[code]
return num
return None
def calc_1000mb_height(self, height: float) -> float:
if height >= 500:
return 0 - (height - 500)
return height
def calc_850mb_height(self, height: float) -> float:
return 1000.0 + height
def calc_500mb_height(self, height: float) -> float:
print(f"Calculating 500mb height")
return 10 * height
def parse_height_pressure(self, value: str):
token = value[0:2]
num = value[2:5]
code = value[0:2]
num = value[2:5]
if num == '///':
return None
if token == '00':
return {
'height': self.calc_1000mb_height(float(num)),
'pressure': 1000
}
#
# Ignore the tropopause or height of max wind velocity.
#
if code == '77' or code == '88':
return None
if token in self.TTAA_HEIGHTS:
return {
'height': float(num),
'pressure': self.TTAA_HEIGHTS[token]
}
pressure = self.code_to_pressure(code)
if pressure is None:
return None
elif pressure == 1000:
height = self.calc_1000mb_height(float(num))
elif pressure <= 500:
height = self.calc_500mb_height(float(num))
elif pressure <= 850:
height = self.calc_850mb_height(float(num))
else:
height = float(num)
return {
'pressure': pressure,
'height': height
}
PRESSURE_SIG = {
'11': True, '22': True, '33': True, '44': True, '55': True,
@ -148,17 +173,21 @@ class RawinsObs():
}
def parse_significant_pressure(self, value: str):
if value[0:2] in self.PRESSURE_SIG:
code, pressure = value[0:2], value[2:5]
if code in self.PRESSURE_SIG:
return {
'height': None,
'pressure': float(value[2:5])
'pressure': float(pressure)
}
def parse_surface_pressure(self, value: str):
if value[0:2] == '99':
code, pressure = value[0:2], value[2:5]
if code == '99':
return {
'height': None,
'pressure': float(value[2:5])
'pressure': float(pressure)
}
def parse_sample_values(self, values: list[str]) -> RawinsSample: