Question
What is the 900-hPa equivalent temperature (Te) in this sounding?
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The correct answer is about 23°C.
From the 900-hPa temperature, draw a line upward along a dry adiabat. From
the 900-hPa dewpoint, draw a line upward along a saturation mixing ratio line.
From the intersection of these two lines, draw a line upward along a saturation
adiabat to a level where this adiabat is parallel to a dry adiabat. From this
level, draw a line downward along a dry adiabat to 900 hPa. The value of the
temperature where this line intersects the 900 hPa isobar is 23°C =
Te.