Difference between revisions of "England-2011-lab1-green"
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== Data Collection == | == Data Collection == | ||
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| + | Measurements & Raw data(raw data in bold) | ||
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| + | 1) LATITUDE: | ||
| + | ''Method 1 [Human Estimation]'' –royal observatory (51° 28’38.56”) – 25 m = | ||
| + | 51.47737777766666° – (25m/111248.24m) = '''51.477153055010373°''' | ||
| + | (lengths of degree latitude at 51° = 111248.24m) | ||
| + | ''Method 2 [GPS]'' – 51° 28.633’ = '''51.477216666°''' | ||
| + | ''Method 3 [GoogleEarth]'' – 51°28'37.82"N = '''51.4771722222°''' | ||
| + | |||
| + | 2) LONGITUDE: | ||
| + | ''Method 1 [Human estimation/lightpole]'' – 0° 0.381’ + 21 m = | ||
| + | 0.00635° + (21 m/70,197.65m) = '''0.00664915°''' | ||
| + | (length of degree longitude at latitude 51° = 70,197.65m) | ||
| + | ''Method 2 [GPS]'' – 0° 0.372’ (converted into decimal form = '''0.0062°''') | ||
| + | ''Method 3 [GoogleEarth]'' – 0° 0'22.42"W (converted into decimal form = | ||
| + | '''0.00062277777°''') | ||
| + | |||
| + | 3) ELEVATION: | ||
| + | ''Method 1 [Human estimation/lightpole]'' – '''13 m''' | ||
| + | ''Method 2 [GPS]'' – '''14 m''' | ||
| + | ''Method 3 [GoogleEarth]'' – '''22 m''' | ||
| + | |||
| + | 4) DUE NORTH: A black gate and driveway for number 52 Mays Buildings Mews (written in stone next to the gate says “The Grange”) | ||
| + | |||
| + | 5) DUE SOUTH: Mays Court…and a housing complex called Beaver’s Housing Society…more specifically the birdfeeder in the front lawn | ||
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| + | 6) SHORTEST DISTANCE FROM PRIME MERIDIAN: | ||
| + | ''Method 1 [Human Pace]'' – 184 paces (estimated at .5 m/pace) X 2 = '''184 m''' | ||
| + | ''Method 2 [GoogleEarth]'' – '''432.3 m''' | ||
== Data Analysis == | == Data Analysis == | ||
== Results == | == Results == | ||
Revision as of 17:02, 4 February 2011
Lab Write-up for Group Green
Introduction
Description of task and approach
Despite being a completely arbitrary line, the prime meridian holds a great deal of significance for human navigation. During our visit to Greenwich, we used the prime meridian as a reference point for our assigned location. We estimated the latitude, longitude and elevation of the given spot using a GPS, a compass and human estimation. We used footsteps to determine our distance from the Royal Observatory as well as labels on a nearby lamppost.
Data Collection
Measurements & Raw data(raw data in bold)
1) LATITUDE: Method 1 [Human Estimation] –royal observatory (51° 28’38.56”) – 25 m = 51.47737777766666° – (25m/111248.24m) = 51.477153055010373° (lengths of degree latitude at 51° = 111248.24m) Method 2 [GPS] – 51° 28.633’ = 51.477216666° Method 3 [GoogleEarth] – 51°28'37.82"N = 51.4771722222°
2) LONGITUDE: Method 1 [Human estimation/lightpole] – 0° 0.381’ + 21 m = 0.00635° + (21 m/70,197.65m) = 0.00664915° (length of degree longitude at latitude 51° = 70,197.65m) Method 2 [GPS] – 0° 0.372’ (converted into decimal form = 0.0062°) Method 3 [GoogleEarth] – 0° 0'22.42"W (converted into decimal form = 0.00062277777°)
3) ELEVATION: Method 1 [Human estimation/lightpole] – 13 m Method 2 [GPS] – 14 m Method 3 [GoogleEarth] – 22 m
4) DUE NORTH: A black gate and driveway for number 52 Mays Buildings Mews (written in stone next to the gate says “The Grange”)
5) DUE SOUTH: Mays Court…and a housing complex called Beaver’s Housing Society…more specifically the birdfeeder in the front lawn
6) SHORTEST DISTANCE FROM PRIME MERIDIAN: Method 1 [Human Pace] – 184 paces (estimated at .5 m/pace) X 2 = 184 m Method 2 [GoogleEarth] – 432.3 m
