Navn;Beskrivelse;Kodeverdi;Navn engelsk;Beskrivelse engelsk;Kodeverdi engelsk
mean low water springs; (MLWS) - the average height of the low waters of spring tides. Also called spring low water. (IHO Dictionary, S-32, 5th Edition, 3150);mean low water springs;;;
mean lower low water springs; (MLLWS) - the average height of lower low water springs at a place. (IHO Dictionary, S-32, 5th Edition, 3146);mean lower low water springs;;;
mean sea level; (MSL) - the average height of the surface of the sea at a tide station for all stages of the tide over a 19-year period, usually determined from hourly height readings measured from a fixed predetermined reference level. (IHO Dictionary, S-32, 5th Edition, 3156);mean sea level;;;
lowest low water; an arbitrary level conforming to the lowest tide observed at a place, or some what lower.;lowest low water;;;
mean low water; (MLW) - the average height of all low waters at a place over a 19-year period. (IHO Dictionary, S-32, 5th Edition, 3147);mean low water;;;
lowest low water springs; an arbitrary level conforming to the lowest water level observed at a place at spring tides during a period of time shorter than 19 years. (Hydrographic Service, Royal Australian Navy);lowest low water springs;;;
approximate mean low water springs; an arbitrary level, usually within a 0.3m from that of mean low water springs (MLWS). (Hydrographic Service, Royal Australian Navy);approximate mean low water springs;;;
Indian spring low water; (ISLW) - an arbitrary tidal datum approximating the level of the mean of the lower low water at spring tides. Also called Indian tidal plane. (IHO Dictionary, S-32, 5th Edition, 2427);Indian spring low water;;;
low water springs; an arbitrary level, approximating that of mean low water springs (MLWS). (Hydrographic Service, Royal Australian Navy);low water springs;;;
approximate lowest astronomical tide; an arbitrary level, usually within a 0.3m from that of lowest astronomical tide (LAT). (Hydrographic Service, Royal Australian Navy);approximate lowest astronomical tide;;;
nearly lowest low water; an arbitrary level approximating the lowest water level observed at a place, usually equivalent to the Indian spring low water (ISLW). (Hydrographic Service, Royal Australian Navy);nearly lowest low water;;;
mean lower low water; (MLLW) - the average height of the lower low waters at a place over a 19-year period. (IHO Dictionary, S-32, 5th Edition, 3145);mean lower low water;;;
low water; an approximation of mean low water adopted as the reference level for a limited area, irrespective of better determinations at a later date. Used mostly in harbour and river engineering.;low water;;;
approximate mean low water; an arbitrary level, usually within a 0.3m from that of mean low water (MLW). (Hydrographic Service, Royal Australian Navy);approximate mean low water;;;
approximate mean lower low water; an arbitrary level, usually within a 0.3m from that of mean lower low water (MLLW). (Hydrographic Service, Royal Australian Navy);approximate mean lower low water;;;
mean high water; (MHW) - the average height of all high waters at a place over a 19-year period. (IHO Dictionary, S-32, 5th Edition, 3141);mean high water;;;
mean high water springs; (MHWS) - the average height of the high waters of spring tides. Also called spring high water. (IHO Dictionary, S-32, 5th Edition, 3144);mean high water springs;;;
high water; the highest level reached at a place by the water surface in one tidal cycle. Also called high tide. (IHO Dictionary, S-32, 5th Edition, 2251);high water;;;
approximate mean sea level; an arbitrary level, usually within a 0.3m from that of mean sea level (MSL). (Hydrographic Service, Royal Australian Navy);approximate mean sea level;;;
high water springs; an arbitrary level, approximating that of mean high water springs (MHWS). (Hydrographic Service, Royal Australian Navy);high water springs;;;
mean higher high water; (MHHW) - the average height of higher high waters at a place over a 19-year period. (IHO Dictionary, S-32, 5th Edition, 3140);mean higher high water;;;
equinoctial spring low water; the level of low water springs near the time of an equinox.;equinoctial spring low water;;;
lowest astronomical tide; (LAT) - the lowest tide level which can be predicted to occur under average meterological conditions and under any combination of astronomical conditions. (IHO Dictionary, S-32, 5th Edition, 2936);lowest astronomical tide;;;
local datum; an arbitrary datum defined by a local harbour authority, from which levels and tidal heights are measured by this authority.;local datum;;;
international great lakes datum 1985; (IGLD 1985) - a vertical reference system with its zero based on the mean water level at Rimouski/Pointe-au-Pcre, Quebec, over the period 1970 to 1988.;international great lakes datum 1985;;;
mean water level; the average of all hourly water levels over the available period of record.;mean water level;;;
lower low water large tide; (LLWLT) - the average of the lowest low waters, one from each of 19 years of observations.;lower low water large tide;;;
higher high water large tide; (HHWLT) - the average of the highest high waters, one from each of 19 years of observations.;higher high water large tide;;;
nearly highest high water; an arbitrary level approximating the highest water level observed at a place, usually equivalent to the high water springs.;nearly highest high water;;;
highest astronomical tide; (HAT) - the highest tidal level which can be predicted to occur under average meteorological conditions and under any combination of astronomical conditions (IHO Dictionary, S-32, 5th Edition, 2244);highest astronomical tide;;;