(a) Why is the solar zenith angle lower during summer than in winter?
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Transcribed Image Text:The figure below shows a plot of solar zenith angle in Nodlysstasjonen (78.2•N latitude)
on the Norwegian island of Svalbard.
Solar Zenith Angle at Nordlysstasjonen
60
Daylight
80
100
Evening Nightime
120
100
200
300
Day of Year
(a) Why is the solar zenith angle lower during summer than in winter?
(b) During which date ranges is there a complete lack of daylight at
Nodlysstasjonen?
(c) At noon on July 4, what is the downward solar radiation at Nodlysstasjonen?
(d) How would you expect your answer to part (c) to change if the location was still
Nodlysstasjonen but Earth's obliquity was lower? Why?
Maxima
Solar Zenith Angle (Degrees)
Midnight
Minima
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