Search results
Results From The WOW.Com Content Network
The coordinates used in this article are sourced from Google Earth, which makes use of the WGS84 geodetic reference system. Additionally, a negative altitude value refers to land below sea level. Additionally, a negative altitude value refers to land below sea level.
Pressure altitude is the elevation above a standard datum air-pressure plane (typically, 1013.25 millibars or 29.92" Hg). Pressure altitude is used to indicate "flight level" which is the standard for altitude reporting in the U.S. in Class A airspace (above roughly 18,000 feet).
The government of Vietnam provided the bureau with additional information in May 2002, announcing the decision of the Prime Minister of Vietnam (December 2001) on upgrading Phong Nha–Kẻ Bàng to the Phong Nha–Kẻ Bàng National Park with a total area of 857.54 km 2; providing information on projects for the conservation and development ...
A geoid is needed to convert the 3D position to sea-level elevation. Pressure altimeter measuring atmospheric pressure, which decreases as altitude increases. Since atmospheric pressure varies with the weather, too, a recent local measure of the pressure at a known altitude is needed to calibrate the altimeter. Stereoscopy in aerial photography.
Population density and elevation above sea level in Ho Chi Minh City (2010) Vietnam is among the most affected countries by global climate change. [12] A large number of studies show that Vietnam is experiencing climate change and will be severely negatively affected in coming decades.
Geodetic latitude measures how close to the poles or equator a point is along a meridian, and is represented as an angle from −90° to +90°, where 0° is the equator. The geodetic latitude is the angle between the equatorial plane and a line that is normal to the reference ellipsoid.
Dong Son village in Đắk Lắk Province, surrounded by mountains.. The Central Highlands are a series of plateaus bordering the lower part of Laos and northeastern Cambodia, namely Kon Tum Plateau at 500m, Kon Plông Plateau, Kon Hà Nừng Plateau, Pleiku Plateau at 800m, Mdrak Plateau at approximately 500m, Đắk Lắk Plateau at around 800m, Mơ Nông Plateau with the height of about 800 ...
The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles of a spherical coordinate system: altitude and azimuth. Therefore, the horizontal coordinate system is sometimes called the az/el system, [1] the alt/az system, or the alt-azimuth system, among