ATOC 1070 Lecture Notes - Lecture 1: Rail Delivery Group, Shortwave Radio
3 May 2018
School
Department
Course
Professor
Weather Lab 6: Visible and Infrared Radiation
Griffin Heller
Madeleine Bendalin, Jeremy Dahms
Lab Section 10
3/7/18
ATOC 1070 Weather Lab 6: Atmospheric Radiation Data
Table
Cloudy (8/19/15)
Clear (9/12/15)
Local time &
value of max
Local time &
value of min
Local time &
value of max
Local time &
value of min
Longwave
Radiation
380
W/m^2 @
8 UTC
310
W/m^2 @
24 UTC
360
W/m^2 @
15 UTC
290
W/m^2 @
8 UTC
Shortwave
Radiation
1190
W/m^2
@13 UTC
Zero from
dusk to
dawn
850
W/m^2 @
13 UTC
Zero from
dusk to
dawn
Cloud
Height
(N/A if no clouds)
250 m
4000 m
N/A
N/A
Temperature
70 F @ 18
UTC
48 @ 8
UTC
87 F @ 16
UTC
55 F @ 7
UTC
QUIZ ANSWERS BELOW
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Document Summary
Atoc 1070 weather lab 6: atmospheric radiation data. The clouds absorb and re-emit more radiation than on a clear day. These two times do not coincide due to temperature lag. The time of the max surface temperature and the time of the max solar irradiance don t coincide on either the cloudy or clear day. The peak of longwave radiation coincides with the time of the highest surface temperatures because when the surface temperature is highest, the earth is emitting the most infrared radiation. Most atmospheric heating comes from the contact with the surface. I would expect, from the peak longwave radiation on the cloudy day occurred when the clouds were low and thick. Lower clouds could emit more longwave radiation to the ground because lower clouds can transmit incoming solar radiation and re-emit to the surface, which is known as the greenhouse effect.
