imately June 21 (the summer solstice), the angle of the sun at noon here in Char
ID: 286375 • Letter: I
Question
imately June 21 (the summer solstice), the angle of the sun at noon here in Charlotte On approx is 78.50. Using the sine law ca langleys at noon on that day? Langleys On approximately December 21 (the winter solstice), the angle of the sun at noon here in Charlotte is 31.5: What is the maximum potential intensity in langleys at noon on that day? Langleys Compare the difference between the intensity of radiation at noon on December 21 with that on June 21 here in Charlotte. Just as Charlotte experiences variation of sun angles throughout each day and season, each geographic location experiences a range of different sun angles. Because the earth is nearly spherical, insolation always strikes the high latitude places obliquely. The zenith angle at noon in the tropical areas is relatively small but quite large in the high latitude locations. The maximum potential intensity of radiation striking the earth's surface at noon at any latitude may be easily estimated by applying the sine law. alculate the maximum potential radiation density in Langleys for Bergen, Norway (latitude 0 North) on December 21 (angle of the noon sun 6.5° ) and on June 21 (angle of the noon un-53.5°). ecember 21, Langleys hat is the difference between June and December? June 21 Langleys Langleys 96 difference hat is the difference in maximum potential radiation intensity between Bergen and Charlotte on cember 21? Langleys Bergen:Langleys Differe rlotte: LandExplanation / Answer
1. Sine law (radiation intensity) Ib = Ia * Sin SA,
Ia is a solar constant = 1.94 Langleys
Charlotte at 21 June Ib = 1.60Langleys.
2. Charlotte at 21 DecemberIb = 1.01Langleys.
3. Difference between radiation Charlotte at 21 June & 21 December = .0.59 Langleys.
4. Potential radiation density at Bergon Norways at 21 Dec = 50-65= 43.5 Degree
At 21 December Ib = 1.40Langleys.
At 21 June Ib = 1.93Langleys.
5. Potential radiation density difference from 21 Dec & 21 June Bergon Norways at= 0.53, & 66.42 Percent.
6. Potential radiation density difference at 21 Dec from Charllote & Bergon Norways = 0.39,
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