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A transect is a path along which one counts and records occurrences of the species of study (e.g. plants). It is less effective than other methods, such as the Belt Transect. It requires an observer to move along a fixed path and to count occurrences along the path and, at the same time (in some procedures), obtain the distance of the object from the path. This results in an estimate of the area covered and an estimate of the way in which detectability increases from probability 0 (far from the path) towards 1 (near the path). Using the raw count and this probability function, one can arrive at an estimate of the actual density of objects.
An unmanned ship-based ocean hydrological multi-parameter section observation system and method
This invention discloses a multi-parameter transect observation system and method for marine hydrology based on an unmanned vessel, relating to the field of transect observation. It addresses the problem of poor observation results in existing marine transect observation systems. The system includes a transect temperature module: performing water depth and temperature analysis on sample marine observation transects and obtaining the corresponding transect temperature index observation coefficient based on the analysis results; a transect salinity module: performing water depth and salinity analysis on sample marine observation transects and obtaining the corresponding transect salinity index observation coefficient based on the analysis results; and an observation feedback module: assessing the water body stability of the sample marine observation transect based on the transect salinity index observation coefficient and the transect temperature index observation coefficient. This invention improves the accuracy and comprehensiveness of marine transect observation results.
Owner:STATE OCEANIC ADMINISTRATION SOUTH CHINA SEA SURVEY TECH CENT (SOUTH CHINA SEA BUOY CENT STATE OCEANIC ADMINISTRATION) +1