Difference between revisions of "2015-09-23 global"
From Geohashing
imported>SpiritofMaurice (→Location: more accurate measurements added) |
imported>Benjw (→Plans: all graticules are 111 km tall!) |
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This looks like it could be near some research stations - or maybe not? I'm not sure. Google Maps won't plot it properly as the Mercator projection it uses distorts to infinity near the poles. Intrigued to see just how close to the North Pole 89deg N actually is. --[[User:SpiritofMaurice|SpiritofMaurice]] ([[User talk:SpiritofMaurice|talk]]) 11:01, 22 September 2015 (EDT) | This looks like it could be near some research stations - or maybe not? I'm not sure. Google Maps won't plot it properly as the Mercator projection it uses distorts to infinity near the poles. Intrigued to see just how close to the North Pole 89deg N actually is. --[[User:SpiritofMaurice|SpiritofMaurice]] ([[User talk:SpiritofMaurice|talk]]) 11:01, 22 September 2015 (EDT) | ||
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| + | :You can easily work out how close to the pole it is. All graticules are the same height ('''i.e.''' distance north-south); it's just the width (west-east) that differs as you move from one latitude to another. The pole-to-pole (meridional) circumference of the Earth is 40008 km, so with 360 graticules on the way round, each is 111.133 km tall. So a geohash at 88.99438 degrees north is (90 - 88.99438) * 111.133 = 111.758 km from the pole. — <span style="text-shadow:grey 0.2em 0.2em 0.1em; class=texhtml">[[User:Benjw|Benjw]]</span> <sub>{[[User talk:Benjw|talk]]}</sub> 11:38, 22 September 2015 (EDT) | ||
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Revision as of 15:38, 22 September 2015
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Globalhash on Wed 23 Sep 2015: |
Location
GLOBALHASH -- Just 70 miles south of the geographic North Pole. 900 miles directly north from the Russian island and nuclear testing zone of Novaya Zemlya.
| lat=88.98767245
| lon=58.24507166
| date=2015-09-23
Participants
Plans
This looks like it could be near some research stations - or maybe not? I'm not sure. Google Maps won't plot it properly as the Mercator projection it uses distorts to infinity near the poles. Intrigued to see just how close to the North Pole 89deg N actually is. --SpiritofMaurice (talk) 11:01, 22 September 2015 (EDT)
- You can easily work out how close to the pole it is. All graticules are the same height (i.e. distance north-south); it's just the width (west-east) that differs as you move from one latitude to another. The pole-to-pole (meridional) circumference of the Earth is 40008 km, so with 360 graticules on the way round, each is 111.133 km tall. So a geohash at 88.99438 degrees north is (90 - 88.99438) * 111.133 = 111.758 km from the pole. — Benjw {talk} 11:38, 22 September 2015 (EDT)
Expedition
Tracklog
Photos
Achievements
