海拔

Multi tool use海拔(Altitude、height、depth)就是某地与海平面的高度差,通常以平均海平面做标准来计算。
各地水平原點
不同的海域的海平面高度是不一样的,如巴拿马运河的太平洋側海平面比大西洋側海平面高20厘米。
中国大陸:海拔采用青岛港验潮站的长期观测资料推算出的黄海平均海面作为基准面(零高程面)。
香港:以香港主水平基準為測量基準點。
台灣:以國立海洋科技博物館旁設置「台灣水準原點」作為測量基準點。
日本:以東京灣的平均海面作為基準,實際測量的基準點位於東京都千代田區舊参謀本部陸地測量部/國會前庭的「日本水平原點高」。
- 英國:1915年5月至1921年4月英國西南岸康沃爾郡紐林的平均海面「Ordnance Datum Newlyn」
荷蘭:阿姆斯特丹的平均海面「Normaal Amsterdams Peil」
備註
 | 维基共享资源中相关的多媒体资源:海拔
|
- 地球表面海拔最高的地点:珠穆朗玛峰(8848.02米)
- 地球表面海拔最低的地点:马里亚纳海沟(-10994, 最低點 -11034米)
- 陆地(未被海洋覆盖的地表)最低点:死海(-430米)
参见
外部連結
Altitude pressure calculator. Apex (altitude physiology expeditions). [2006-08-08].
The Race to the Stratosphere. U.S. Centennial of Flight Commission. [25 January 2006]. (原始内容存档于2006年3月9日).
- Downloadable ETOPO2 Raw Data Database (2 minute grid)
- Downloadable ETOPO5 Raw Data Database (5 minute grid)
- Calculate true altitude with these JavaScript applications
- Find the altitude of any place
rFvnqny4,Exr 0Zv,49Sxf41DBsOZ0M1Px2ws,RCWGxhFQiFdwk2p,5s0pw 406rlTK f1Kws1tMs,cWm,9RzO F331XqYXIn
Popular posts from this blog
Ramiro Burr's New Blog - to go back: www.ramiroburr.com From Latin rock to reggaeton, boleros to blues,Tex-Mex to Tejano, conjunto to corridos and beyond, Ramiro Burr has it covered. If you have a new CD release, a trivia question or are looking for tour info, post a message here or e-mail Ramiro directly at: musicreporter@gmail.com Top Tejano songwriter Luis Silva dead of heart attack at 64 By Ramiro Burr on October 23, 2008 8:40 AM | Permalink | Comments (12) | TrackBacks (0) UPDATE: Luis Silva Funeral Service details released Visitation 4-9 p.m. Saturday, Rosary service 6 p.m. Saturday at Porter Loring, 1101 McCullough Ave Funeral Service 10:30 a.m. Monday St. Anthony De Padua Catholic Church, Burial Service at Chapel Hills, 7735 Gibbs Sprawl Road. Porter Loring (210) 227-8221 Related New Flash: Irma Laura Lopez: long time record promoter killed in accident NewsFlash: 9:02 a.m. (New comments below) Luis Silva , one of the most well-known ...
1 I having trouble getting my ResourceDictionary.MergedDictionaries to load from app.xaml. My WPF app has a static class with a Main defined and startup object set to it. Within Main I created an instance of App and run it. The override OnStartup fires and the mainwindow.cs InitializeComponent gives the error "Message "Cannot find resource named 'MaterialDesignFloatingActionMiniAccentButton'. If I put the resources in the mainwindow.xaml everything is fine, but I wanted them to load at the app level so I they are not in each page. Any help appreciated. public partial class App protected override void OnStartup(StartupEventArgs e) base.OnStartup(e); var app = new MainWindow(); var context = new MainWindowViewModel(); app.DataContext = context; app.Show(); from the Main.. var app = new App(); app.Run(); app.xaml.. <Application x:Class="GS.Server.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:...
up vote 2 down vote favorite There is a clear pattern that show for two separate subsets (set of columns); If one value is missing in a column, values of other columns in the same subset are missing for any row. Here is a visualization of missing data My tries up until now, I used ycimpute library to learn from other values, and applied Iterforest. I noted, score of Logistic regression is so weak (0.6) and thought Iterforest might not learn enough or anyway, except from outer subset which might not be enough? for example the subset with 11 columns might learn from the other columns but not from within it's members, and the same goes for the subset with four columns. This bar plot show better quantity of missings So of course, dealing with missings is better than dropping rows because It would affect my prediction which does contain the same missings quantity relatively. Any better way to deal with these ? [EDIT] The nullity pattern is confirmed: machine-learning cor...