| Navn | Beskrivelse | Kodeverdi |
|---|---|---|
| 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 |
| Verdi | Navn | Beskrivelse |
|---|---|---|
| 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 lower low water springs | (MLLWS) - the average height of lower low water springs at a place. (IHO Dictionary, S-32, 5th Edition, 3146) | |
| 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) | |
| lowest low water | an arbitrary level conforming to the lowest tide observed at a place, or some what lower. | |
| 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) | |
| 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) | |
| 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) | |
| 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) | |
| low water springs | an arbitrary level, approximating that of mean low water springs (MLWS). (Hydrographic Service, Royal Australian Navy) | |
| approximate lowest astronomical tide | an arbitrary level, usually within a 0.3m from that of lowest astronomical tide (LAT). (Hydrographic Service, Royal Australian Navy) | |
| 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) | |
| 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) | |
| 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. | |
| 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 lower low water | an arbitrary level, usually within a 0.3m from that of mean lower low water (MLLW). (Hydrographic Service, Royal Australian Navy) | |
| 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 springs | (MHWS) - the average height of the high waters of spring tides. Also called spring high water. (IHO Dictionary, S-32, 5th Edition, 3144) | |
| 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) | |
| approximate mean sea level | an arbitrary level, usually within a 0.3m from that of mean sea level (MSL). (Hydrographic Service, Royal Australian Navy) | |
| high water springs | an arbitrary level, approximating that of mean high water springs (MHWS). (Hydrographic Service, Royal Australian Navy) | |
| 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) | |
| equinoctial spring low water | the level of low water springs near the time of an equinox. | |
| 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) | |
| local datum | an arbitrary datum defined by a local harbour authority, from which levels and tidal heights are measured by this authority. | |
| 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. | |
| mean water level | the average of all hourly water levels over the available period of record. | |
| lower low water large tide | (LLWLT) - the average of the lowest low waters, one from each of 19 years of observations. | |
| higher high water large tide | (HHWLT) - the average of the highest high waters, one from each of 19 years of observations. | |
| nearly highest high water | an arbitrary level approximating the highest water level observed at a place, usually equivalent to the high water springs. | |
| 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) |
| Name | Description | Code value |
|---|---|---|
| mean low water springs | ||
| mean lower low water springs | ||
| mean sea level | ||
| lowest low water | ||
| mean low water | ||
| lowest low water springs | ||
| approximate mean low water springs | ||
| Indian spring low water | ||
| low water springs | ||
| approximate lowest astronomical tide | ||
| nearly lowest low water | ||
| mean lower low water | ||
| low water | ||
| approximate mean low water | ||
| approximate mean lower low water | ||
| mean high water | ||
| mean high water springs | ||
| high water | ||
| approximate mean sea level | ||
| high water springs | ||
| mean higher high water | ||
| equinoctial spring low water | ||
| lowest astronomical tide | ||
| local datum | ||
| international great lakes datum 1985 | ||
| mean water level | ||
| lower low water large tide | ||
| higher high water large tide | ||
| nearly highest high water | ||
| highest astronomical tide |
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