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World
Meteorological Organization - Guide to Meteorological Instruments and Methods of Observation - Preliminary seventh edition - WMO-No. 8 - Secretariat of the World Meteorological Organization – Geneva – Switzerland -
686:
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When one gives the value of a quantity, any information concerning the quantity or its conditions of measurement must be presented in such a way as not to be associated with the unit.
693:
804:
702:
101:
682:
142:
808:
612:
The Guide for the Use of the
International System of Units, section 7.5 (Unacceptability of mixing information with units), states:
587:
348:
173:: "the vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean sea level."
154:: "the vertical distance of a level, a point or an object considered as a point, measured from the mean sea level (MSL);"
240:
825:
539:
235:
115:: "distance of a point from a chosen reference surface measured downward along a line perpendicular to that surface."
841:
121:: "distance of a point from a chosen reference surface measured upward along a line perpendicular to that surface";
387:
305:
have units of m/s. Normalization by a constant nominal gravity value (units of m/s) yields units of metre, as in
245:
160:: "the vertical distance of a level, a point or an object considered as a point, measured from a specific datum."
105:
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45:
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exist for expressing vertical position: depth, height, altitude, elevation, etc. Points lying on an
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740:. Carnegie Institution of Washington publication. Carnegie Institution of Washington. p. 13
398:
Various instruments and techniques may be used for measuring or determining vertical position:
466:
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81:
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687:"Annex 4: Aeronautical Charts - Chapter 1 (Definitions, Applicability and Availability)"
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422:
363:
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330:
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Dynamic
Meteorology and Hydrography: Part [1]-2, [and atlas of plates]
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17:
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807:(IOGP), Geomatics Committee, Geodesy Subcommittee. Report 373–24, April 2018.
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is introduced for emphasis. However, this practice is not acceptable with the
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358:, introduced when there may be confusion between vertical, horizontal, or
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27:
Position along a vertical direction above or below a given vertical datum
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Many physical phenomena are related to vertical position, as driven by
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386:("height metre") is used; if it is preceded by a '±' it refers to the
801:
Geomatics
Guidance Note 24: Vertical data in oil and gas applications
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287:
177:
I.e., elevation would be the altitude of the ground or a building.
483:
784:
Exploring Prince George: A Guide to North
Central B. C. Outdoors
291:
137:: "height where the chosen reference surface is mean sea level"
760:"Guide for the Use of the International System of Units (SI)"
128:(2008 version) makes the following additional definition:
701:
Note: Annex 4 is one of the (currently) 19 annexes to the
329:, the vertical coordinate does not represent distance in
362:. It is used for distance climbed during sports such as
382:
In German-speaking countries the abbreviation 'Hm' for
805:
703:Chicago Convention on International Civil Aviation
758:Thompson, Ambler; Taylor, Barry N. (2018-11-10).
786:, Vancouver: Rocky Mountain Books, 2004, p. 105.
195:may be defined based on the definitions above:
640:
638:
636:
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297:Certain vertical coordinates are not based on
102:International Organization for Standardization
8:
683:International Civil Aviation Organization
143:International Civil Aviation Organization
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671:
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108:, offers the following two definitions:
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333:, as would be measured with a ruler or
282:Vertical distance quantities, such as
321:at 45 degrees latitude). Despite the
286:, may be expressed in various units:
76:between two vertical positions. Many
7:
60:(a reference level surface, such as
145:(ICAO) offers similar definitions:
84:surface are said to be on the same
56:direction) above or below a given
30:For the supply chain concept, see
25:
819:
588:Vertical separation (aviation)
1:
349:International System of Units
241:Height above average terrain
646:"ISO 6709:2008(en) preview"
540:Vertical pressure variation
354:Another non-SI unit is the
236:Height above mean sea level
858:
184:
29:
388:cumulative elevation gain
246:Height above ground level
104:(ISO), more specifically
583:Vertical and horizontal
617:
563:Geographic coordinates
558:Geodesy § Heights
511:Topographic prominence
496:Temperature lapse rate
343:(symbol gpm or m') or
164:ICAO further defines:
613:
518:Vertical displacement
506:Digital terrain model
413:Benchmark (surveying)
185:Further information:
828:at Wikimedia Commons
523:Post-glacial rebound
443:Water level (device)
303:geopotential numbers
201:Depth below seafloor
78:vertical coordinates
32:Vertical integration
568:Horizontal position
307:geopotential height
271:True vertical depth
266:Thickness (geology)
226:Geocentric altitude
193:physical quantities
70:vertical separation
18:Vertical separation
489:Sea surface height
340:geopotential metre
323:physical dimension
284:orthometric height
261:Orthometric height
221:Ellipsoidal height
187:Heights in geodesy
181:Derived quantities
50:vertical direction
842:Vertical position
826:Vertical position
824:Media related to
467:Stage (hydrology)
66:Vertical distance
42:vertical location
38:Vertical position
16:(Redirected from
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692:. Archived from
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578:Physical geodesy
311:standard gravity
82:equigeopotential
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794:Further reading
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533:Tectonic uplift
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360:slant distances
301:, for example,
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206:Depth in a well
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814:External links
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707:ICAO Doc. 7300
699:on 2016-09-17.
679:United Nations
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479:Mean sea level
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462:Hydraulic head
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423:Depth sounding
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364:mountaineering
356:vertical metre
337:. Sometimes a
331:physical space
327:unit of length
319:normal gravity
315:dynamic height
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251:Measured depth
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216:Dynamic height
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86:vertical level
62:mean sea level
58:vertical datum
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394:Determination
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345:dynamic metre
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256:Normal height
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799:IOGP (2018)
783:
782:Nash, Mike,
778:
767:. Retrieved
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753:
742:. Retrieved
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732:Bjerknes, V.
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694:the original
654:. Retrieved
649:
614:
608:
452:
397:
383:
355:
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344:
339:
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335:tape measure
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231:Geopotential
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99:
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650:www.iso.org
593:Water level
553:Chart datum
418:Depth gauge
96:Definitions
90:water level
769:2020-12-09
744:2023-10-05
625:References
573:Hypsometry
528:Subsidence
438:Tide gauge
433:Topography
428:Hypsometer
408:Bathymetry
384:Höhenmeter
317:(based on
309:(based on
88:, as in a
54:plumb line
449:Phenomena
403:Altimeter
170:elevation
106:ISO 19111
836:Category
734:(1910).
546:See also
474:Isostasy
191:Several
151:altitude
134:altitude
126:ISO 6709
74:distance
48:along a
46:position
501:Terrain
455:gravity
380:cycling
376:running
294:, etc.
72:is the
656:8 June
372:hiking
368:skiing
351:(SI).
299:length
288:metres
158:height
119:height
697:(PDF)
690:(PDF)
652:. ISO
600:Notes
484:Geoid
313:) or
278:Units
113:depth
52:(the
44:is a
764:NIST
720:2006
658:2016
325:and
292:feet
141:The
100:The
378:or
68:or
64:).
40:or
838::
803:,
762:.
709:).
685:.
681:-
666:^
648:.
633:^
457::
390:.
374:,
370:,
366:,
290:,
92:.
772:.
747:.
705:(
660:.
34:.
20:)
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