DATA OBTAINED BY SOUNDING
‘Data obtained sounding’ refers to a hydrographic chart annotation. Historically depth measurements were made by dropping a lead line, information about the nature of the sea bed was also collected by a layer of grease on the bottom of the lead. Repeated readings were taken to form a set of contours of the sea bed.
Sonar operates in much the same way, (echo sounders) measure the time it takes for the echo of a ping to return to the surface.
These pings can be combined and expressed visually to form an image of the seabed. They remain a data set; measurements of a series of distances from the surface to the seabed.
Sonar operates in much the same way, (echo sounders) measure the time it takes for the echo of a ping to return to the surface.
These pings can be combined and expressed visually to form an image of the seabed. They remain a data set; measurements of a series of distances from the surface to the seabed.
Altering the position of the horizon to an imperceivable point and proposing an impossible viewpoint.
Our perception is further altered by processing the data as a two dimensional photograph, viewed head on so we perceive it as a landscape view, while the image actually relates to data obtained over a straight course.
Our perception is further altered by processing the data as a two dimensional photograph, viewed head on so we perceive it as a landscape view, while the image actually relates to data obtained over a straight course.
Salt print made using seawater - Sonar composite - Eyemouth Harbour 2019
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