From 4f0c11cfca96f120c98b236fe208c47b1ec87905 Mon Sep 17 00:00:00 2001
From: XANTRONIX Industrial <xan@xantronix.com>
Date: Mon, 24 Feb 2025 21:35:08 -0500
Subject: [PATCH] Progress
---
lib/xmet/sounding.py | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/lib/xmet/sounding.py b/lib/xmet/sounding.py
index 0550bbf..fa2105f 100644
--- a/lib/xmet/sounding.py
+++ b/lib/xmet/sounding.py
@@ -1,8 +1,8 @@
import datetime
import shapely
-LAPSE_RATE_DRY = 9.8 / 1000 # degrees C per 1000m
-LAPSE_RATE_MOIST = 4.0 / 1000
+LAPSE_RATE_DRY = 9.8 # degrees C per 1000m
+LAPSE_RATE_MOIST = 4.0
class SoundingSample():
__slots__ = (
@@ -45,12 +45,20 @@ class SoundingSample():
return 621.97 * (es / (self.pressure - es))
- def lcl(self) -> float:
- return (self.temperature - self.dewpoint) / 8.0
+ def lcl(self) -> float: # meters
+ return (self.temp - self.dewpoint) / 0.008
def is_saturated(self) -> bool:
return self.humidity >= 100.0
+ def lapse(self, h: float, rate=None) -> float:
+ if rate is None:
+ rate = LAPSE_RATE_MOIST if self.is_saturated() else LAPSE_RATE_DRY
+
+ hd = h - self.height
+
+ return self.temp - (rate * (hd / 1000))
+
class Sounding():
__slots__ = (
'id', 'station', 'timestamp_observed', 'timestamp_released',