how does solar altitude, diameter, and day length change
TRANSCRIPT
![Page 1: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/1.jpg)
How does solar altitude, diameter, and day length change daily and throughout the year?
![Page 2: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/2.jpg)
Let’s prove distance doesn’t matter in seasons by investigating SOLAR ALTITUDE, DAY LENGTH and SOLAR DISTANCE…
![Page 3: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/3.jpg)
Would the sun have the same
appearance if you observed it from other planets?
![Page 4: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/4.jpg)
Why do we see the sun at different altitudesthroughout the day?
![Page 5: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/5.jpg)
We use the altitude of the sun at a time called solar “noon” because of daily solar altitude
changes from the horizon at sunrise and sunset to it’s maximum daily altitude at noon.
If you think solar noon is at 12:00:00, you’re mistaken! Solar “noon” doesn’t usually
happen at clock-noon at your longitude for lots of reasons!
![Page 6: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/6.jpg)
SOLAR INTENSITY and ALTITUDE - Maybe a FLASHLIGHT will help us see this relationship! Draw the beam shape for 3 solar altitudes in your notebooks!
![Page 7: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/7.jpg)
How would knowingsolar altitude daily and seasonally help
make solar panels (collectors)work best?
![Page 8: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/8.jpg)
![Page 9: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/9.jpg)
Where would the sun have to be located to capture the maximum amount of sunlight energy?
SOLAR PANELS at different ANGLES ON GROUND
Draw the sun in the right position to maximize the light it receives on panel
For the northern hemisphere, in which general direction would they be pointed?
For the southern hemisphere, in which direction would they be pointed?
![Page 10: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/10.jpg)
How do shadows show us solar altitude?
![Page 11: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/11.jpg)
You used a FLASHLIGHT and MODELING CLAY to show you how SOLAR INTENSITY, ALTITUDE, and SHADOW
LENGTH are related! Using at least three solar altitudes and locations, draw
your conceptual model of this relationship in your notebooks… Label:
Sun compass direction Shadow compass direction Solar altitude Shadow length (long/short) Sun intensity
![Page 12: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/12.jpg)
What did the lab show us about howSOLAR ALTITUDE, DIAMETER, & DAY
LENGTH relate to each other?
YOUR GRAPHS are PROBABLY the easiest way to SEE the RELATIONSHIPS.
![Page 13: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/13.jpg)
What can you measure to determine the relationship between solar
altitude, solar intensity, and seasons?
Angle of Insolation & Temperature
![Page 14: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/14.jpg)
Tuesday – December 3, 2013 – Day 4Where on Earth are the daily solar altitudes higher
and lower than Endicott?
Monday Tuesday Wednesday Thursday FridayL3 –Peer review
QUIZ-SOLSTICE/EQUINOX
LAB 3 SOLAR DATA
QUIZ-PHYS ORBITS QUIZ-RATES
![Page 15: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/15.jpg)
What does solar altitude and intensity look like in Endicott in 3-D and how does it compare to other
places around the world?
![Page 16: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/16.jpg)
Before we get started, let’s draw a picture in our notebooks to show us what the dome model used in the
SUN’s PATH LAB is trying to show us.
![Page 17: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/17.jpg)
OBSERVER
APPARENT PATH OF SUN IN THE SKY IN
THE NORTHERN HEMISPHERE
A conceptual way to model solar altitude…
![Page 18: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/18.jpg)
![Page 19: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/19.jpg)
1. In which direction does the sun rise on May 15th? What about October 1st?
2. In which direction does the sun set on May 15th? What about October 1st?
3. In the Northern Hemisphere, the noontime sun is always found in what part of the sky?
WHAT EVIDENCE DO I USE FOR LAB QUESTIONS?
![Page 20: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/20.jpg)
1. How does the amount of daylight compare to the amount of darkness on the equinoxes?
2. Does the noontime sun ever reach the zenith in New York State?
3. Looking at the paths that you drew on the diagram, explain why the summer solstice has the greatest amount of daylight.
WHAT EVIDENCE DO I USE FOR LAB QUESTIONS?
![Page 21: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/21.jpg)
Where are the times of day(sunrise, solar noon, and sunset) for each season?
![Page 22: How does solar altitude, diameter, and day length change](https://reader031.vdocuments.us/reader031/viewer/2022020910/6200211c0547b56f59017725/html5/thumbnails/22.jpg)
Lab Exit ticket - Using your knowledge of Earth Science…
In the title, add ENDICOTT at LATITUDE 42oN so you remember this is very specific data. Eventually we will branch out to other places on Earth!
Label the celestial meridian and the zenith for the observer
Label each path of the sun with the season name, range of starting dates, and whether it is a solstice or equinox.
Label each solar noon with its maximum solar altitude angle.
For each path, label sunrise, sunset, and solar noon and include an arrow for the direction it travels on that path. Then label the compass direction (azimuth and cardinal) for each if you are the observer in Endicott.
For each path, list the day/night length.
For each path label the locations of minimum (twice) and maximum solar intensity (once) during the day.
Label the path with the maximum solar intensity and minimum solar intensity.
For each season, draw in the observer’s relative shadow length at solar noon in the correct direction