这不是一个纯粹的地球科学问题但我不确定(GIS SE)江南体育网页版()是正确的地方。“谷歌”建议我看哥伦比亚广播公司周日早上的(北美)的地理中心的争论(https://www.youtube.com/watch?v=s6L9xben6ug),我照做了。视频解释说,* *橄榄球北达科他州* * (48.37 N, 99.99 W)被确定为“地理中心”的北美大陆的* *平衡器销。* *该方法权重向量的每个点的中心;一个点的两倍远将加权的两倍。[!(截图从哥伦比亚广播公司周日早上的“北美的地理中心的争论:https://www.youtube.com/watch?v=s6L9xben6ug] (https://i.stack.imgur.com/UdFrpm.jpg)] (https://i.stack.imgur.com/UdFrp.jpg) [!(截图从哥伦比亚广播公司周日早上的“北美的地理中心的争论:https://www.youtube.com/watch?v=s6L9xben6ug] (https://i.stack.imgur.com/RCqMbm.jpg)) (https://i.stack.imgur.com/RCqMb.jpg)——第二个决心是在一个酒吧做利用众所周知的* *标准字符串,全球和啤酒方法* *。里面被发现*汉森的酒吧本身* * *罗宾逊北达科他州* * (47.14 N 99.78 W)。[!(截图从哥伦比亚广播公司周日早上的“北美的地理中心的争论:https://www.youtube.com/watch?v=s6L9xben6ug] (https://i.stack.imgur.com/ifl7Hm.jpg)] (https://i.stack.imgur.com/ifl7H.jpg) [!(截图从哥伦比亚广播公司周日早上的“北美的地理中心的争论:https://www.youtube.com/watch?v=s6L9xben6ug] (https://i.stack.imgur.com/B8Wjmm.jpg)] (https://i.stack.imgur.com/B8Wjm.jpg) [!(截图从哥伦比亚广播公司周日早上的“北美的地理中心的争论:https://www.youtube.com/watch?v=s6L9xben6ug] (https://i.stack.imgur.com/vU4GAm.jpg)) (https://i.stack.imgur.com/vU4GA.jpg)——第三决心完成使用* *个人电脑和<年代>谷歌地图>周长坐标* * <一口> 2 < /一口>:>教授Peter罗杰森<一口> 1 < /一口>纬度和经度来自北美的边缘,这些坐标插到一个特殊的算法设计,找到中心。 > >”You have to take into account that the Earth’s surface is curved, and you want to find that balance point in a proper way. This turns out by *sheer coincidence* to be near **Center North Dakota** (47.12 N, 101.30 W)! So back to the balance point with it's vector distance from center weighting. [![screenshot from CBS Sunday Morning's "The debate over the geographical center of North America: https://www.youtube.com/watch?v=s6L9xben6ug](https://i.stack.imgur.com/Bapysm.jpg)](https://i.stack.imgur.com/Bapys.jpg) [![screenshot from CBS Sunday Morning's "The debate over the geographical center of North America: https://www.youtube.com/watch?v=s6L9xben6ug](https://i.stack.imgur.com/nwamom.jpg)](https://i.stack.imgur.com/nwamo.jpg) ---- **Questions:** 1. When finding the geographic center of a continent is balance point the accepted method? 2. Is this mathematically equivalent to finding the centroid? 3. "bonus points" how did Rogerson convert *a perimeter to a balance point?* Has this been published? ---- 1[Peter A. Rogerson, Department of Geography](http://www.buffalo.edu/cas/geography/faculty/faculty_directory/peter-a--rogerson.html), State University of New York Buffalo 2hat tip to @EarlGray for their [very helpful comment](//www.hoelymoley.com/questions/21337/?noredirect=1#comment50499_21337)!