ATOC 184 Lecture Notes - Lecture 2: Atmospheric Pressure, Dew Point, Radiosonde
11 Apr 2018
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Surface weather includes many meteorological conditions: sea level pressure: there is always a 9 or 10 implied in front of the number. Options are 904. 2mb or 1004. 2mb: pick the number that brings you closest to 1000 because average sea level, wind: pressure is ~1013. Se (135 degrees: light snow: accumulating at 0. 5cm/h, moderate snow: accumulating at 1-2cm/h, heavy snow: accumulating at 2+ cm/h, midterm: know weather symbols for rain and snow, temp, dewpoint, and what the sea level reading means. Lower pressure with elevation-not due to compass direction. Pressure difference is artificial so we have to correct for the fact that we are at the top of a mountain and determine the pressure if the mountain did not exist. Observations in oceanic regions: weather buoys, such as the one located off of the west coast of n. america, make measurements of both the atmospheric and oceanic states. /instrument x 75 times (n. american stations) each launch.
