真实高度 absolute altitude 飞机到正下方地面的垂直距离(height above ground level),或称离地高度,一般通过无线高度表获得,主要用于进场着陆阶段判断到机场跑道的垂直距离。 绝对高度 true altitude 飞机到平均海平面的垂直距离(height above mean sea level),即气压高度表在标准大气条件下的QNH高度(修正海压高度),主...
We present elevation above mean sea level as a unifying parameter for stream classification purposes and identify consistent morphological trends exhibited by several stream properties with changing elevation. Published geometric data of 873 stable channel reaches from varied physiographic regions, representing...
named elevation (or something similar) then you can use that attribute and run MAPIMPORT which will do two things while you're running the command: (1) create contours which are AutoCAD polylines and (2) have those AutoCAD polylines moved up to their respective elevation ...
Highest Terrain Elevation above mean sea level = 1510 Nonrepresented allowance+ 200Sum of highest terrain elevation and NRA = 1710 Add a terrain height accuracy figure to the sum (assessed as 50 feet)+ 50Sum of terrain height accuracy figure with highest terrain elevati...
elevation, vertical distance from a datum plane, usually mean sea level to a point above the earth. Often used synonymously with altitude, elevation is the height on the earth's surface and altitude, the height in space above the surface. The elevation of a feature is calculated through such...
structure would be above sea level (even above high tide level: mean higher high water level [...] devb.gov.hk 此外,主幹道 隧道結構在此橫越處將高於海平面 (甚至 高於 漲潮水平: 平均高潮水平約為主水平基準面以上 2.0 米),實際上這無 論如何都會被視為填海。 devb.gov.hk Temperature ...
【Height】 , 【altitude】 , 【elevation】 mean the distance a thing rises above the level on which it stands, or the vertical distance between a given level taken as a base and a thing that is above it. 【Height】 may be used with reference to whatever can be so measured, whether hig...
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The geoid is purely hypothetical though, but it is used as a reference for land surveyors to determine elevation based on what the sea-level would have been for a given point on Earth without land. This is also referred to as “height above mean sea level”. The planet earth is ...
1) elevation of ground above mean sea-level 地面海拔高度2) terrain altitude 地面拔海高度3) Altitude [英]['æltɪtju:d] [美]['æltə'tud] 海拔高度 1. Curvilinear model analysis between reference values of Chinese newborn boys hemoglobin and altitude; 男性新生儿血红蛋白参考值与...