Abstract
Abstract. The amount and location of oceanographic stations vary in different time and the observation information of the same station shows temporality. Hence, ocean observation information has strong spatiotemporal characteristics. This article firstly introduces storage strategy and representation method of spatiotemporal information on tidal level. Then the prototype system was built with the ability of storing, updating, analyzing, and early warning of tidal level in Shandong Peninsula of China. The system achieves the inquiry and visualization of realtime and historical information of oceanographic stations, which provides technical support for oceanographers and decisionmakers.
Highlights
The warning tidal level refers to the established value of tidal level when tidal risks or disasters may occur in protection zones along the coastal area and a state of alert, emergency or disaster relief are declared
In order to ensure the accuracy and rationality of the current warning tidal level, the State Oceanic Administration carried out the regulation named “the Check and Management Method on the Warning Tidal Level”, in which provincial oceanic departments must perform the assessment of the warning tidal level at regular intervals, and the value should be redetermined if the current value does not suit for disaster mitigation
In order to improve the capacity of disaster prediction and prevention, it is needed to design and develop the coastal warning tidal level information system based on GIS technology
Summary
The warning tidal level refers to the established value of tidal level when tidal risks or disasters may occur in protection zones along the coastal area and a state of alert, emergency or disaster relief are declared. The warning tidal level is an important technical indicator of coastal flood prevention work, and is the reference of the marine forecasting department issuing storm surge forecast and alert. In order to ensure the accuracy and rationality of the current warning tidal level, the State Oceanic Administration carried out the regulation named “the Check and Management Method on the Warning Tidal Level”, in which provincial oceanic departments must perform the assessment of the warning tidal level at regular intervals, and the value should be redetermined if the current value does not suit for disaster mitigation. In order to improve the capacity of disaster prediction and prevention, it is needed to design and develop the coastal warning tidal level information system based on GIS technology. We can manage and display the tidal level information of different time
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