| dc.description.abstract | The trend of sea level rise is increasing from year to year. The phenomenon of
melting ice at the north and south poles causes the volume of seawater to increase.
Tidal flooding is an event that can occur as a result of this. The effects caused by
tidal floods are very pronounced for people living on the coast of the sea, as well
as other impacts that are felt on the surrounding ecosystem, namely the mangrove
population, where the presence of tidal floods that continue to occur can have a
serious impact on mangrove vegetation because it can threaten the survival of
mangroves and their existence. The purpose of this study is to model and obtain
information on the spatial distribution of tidal flood-prone areas with influential
factors and to see the state of mangroves and mangrove species in Medan Belawan
Sub-district affected by tidal floods. Spatial modeling of tidal flood-prone areas
uses several variables, namely elevation, slope, distance from the river, and
distance from the coast. The value of each tidal flood point was then analyzed by
the principal component analysis method to obtain the weight of each variable. The
results showed that four variable factors were highly correlated with tidal flooding:
altitude, slope, distance from the river, and distance from the coast. The area prone
to tidal flooding is 1884.64 ha with a percentage of 62% of the total study area and
the area not prone to tidal flooding is 1155.71 ha with a percentage of 38% of the
study area with a model validation value of 88.10%. | en_US |
