Özet:

Tidal flooding is a natural event or phenomenon where seawater enters the land area when the sea level experiences high tide conditions, either directly or through overflowing river water. The tidal flood that occurred in the northern part of Medan was the same as what happened on every coast. The land area affected by tidal flooding is getting wider and wider, so there needs to be an analysis of the potential tidal flood vulnerability so that handling and prevention efforts can be right on target. The potential for tidal flood vulnerability uses 9 criteria, for that the AHP and GIS integration methods are used in order to make rational decisions from several criteria that produce a vulnerability map. The results obtained in the northern area of Medan city that 1,546.89 ha (16.39%) have a high to very high level of vulnerability, while 4,411.92 ha (46.83%) have a moderate level of vulnerability to tidal flooding. The results of the vulnerability level show that 13 environments are in the very high category of 6.16%, 44 environments are in the high category of 20.85% and 64 environments are in the medium category of 30.33%. In the mitigation strategy, the efforts that must be made by the Government are 1. building pump houses, 2. structuring buildings, especially in the environment adjacent to the coast, 3. providing maps of tidal flood-prone zones and vulnerability, 4. relocating the area by building flats

Anahtar Kelimeler: