1 On The Accompanying Diagrams In Figure 5 1 Complete The Following Items June Has Been Started For You Also You Ma 1 (46.27 KiB) Viewed 135 times
1 On The Accompanying Diagrams In Figure 5 1 Complete The Following Items June Has Been Started For You Also You Ma 2 (59.52 KiB) Viewed 135 times
1. On the accompanying diagrams in Figure 5.1, complete the following items. June has been started for you. Also, you may want to consult your physical geography text for reference. a) Extend the Sun's rays until they intersect (pass through) or are tangent to Earth's surface (touch at only one point). (See the June solstice Earth profile diagram for examples.) b) Where the rays intersect or are tangent to Earth's surface, draw a short line tangent to the sur- face, indicating the angle at which the Sun's rays are intercepted. c) Label the vertical rays (striking Earth at a 90° angle) and tangent rays (parallel to Earth) with their latitude for the December solstice and the March equinox, as shown for the June solstice. Label the subsolar point for June, March, and September. d) Draw the following on the Earth profiles and label: North and South Poles Equator Circle of illumination Arctic and Antarctic Circles Tropics of Cancer and Capricorn e) Lightly shade the portion of Earth that is experiencing night, or the night half of the circle of illumination. Half of Earth is in sunlight and half is in darkness at any moment. The traveling boundary that divides daylight and darkness is called the circle of illumination-it is the day- night dividing circle. 265
Circle of Illumination Video Equinoxes and Solstices from Space https://goo.gl/gK05 Vertical ray and subsolar point June solstice March equinox A Figure 5.1 Earth-Sun relationships Tangent ray 66.5°N Oblique ray 23.5°N Oblique ray 66.5°S Tangent ray SUH n RAYS a SUE n RAYS a y December solstice September equinox
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