What is the intertidal zone?
The intertidal zone refers to the highest tide level during the tide period and the coast between the lowest tide level during the great tide period, that is, the area where the water is flooded to the highest level and the surface where the tide is retreated to the lowest level.
As an area where sea and land interact, the measurement of its topography has always been a major problem for marine surveying and mapping workers, especially the wide shoals and silt areas.
Intertidal zone (picture from the network)
Why is the topographic measurement of the intertidal zone so difficult?
a. There is a time limit for the tide
b. Beach muddy personnel cannot measure in the field
c. Shoal boats cannot be close
d. There is a certain risk in field measurements
The significance of intertidal terrain measurements:
As a tidal flat composed of a low-lying coastal landform and a salt marsh wetland, the intertidal zone is an important sedimentary zone for sea-land interaction.
It is an important treasure house of marine resources.
Yongding Xinhe estuary
Muddy mud can not be reached by people
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