the water levels and flows are resolved on a rectangular grid covering the area of interest. hd module simulates the water level variations and flows in response to a variety of forcing functions in lakes, estuaries, bays and coastal areas. mike 21 hd is the basic computational hydrodynamic module of the entire mike 21 system, providing the hydrodynamic basis for other mike 21 modules such as for advection-dispersion (ad), particle tracking (pa) and sediment transport (st, mt). in this study, the hydrodynamic module (mike 21 hd) is used to calculate the water movements in the kiashahr coastal area. the model: the applied modeling system mike 21 consists of several separate modules. kiashahr harbor and kiashahr lagoon are situated on the east side of sefid rud river, which is the most important river in the southern part of the caspian sea (figure 1). material and methods: kiashahr fishing harbor is located in the northwestern part of the iranian coast of the caspian sea at geographical coordinates on the 39° 57? e and 37° 26? n. besides, the results of this study can be used for other related research works on sediment transport, water quality, etc. the field measurements in the kiashahr coastal area are also used for calibration of the model parameters.
Mike 21 software software#
for this purpose, mike 21 software package was used to simulate patterns of longshore currents before and after construction of the jetties. therefore, a precise study is necessary to understand and prevent the possible impact of the jetties on the study area. construction of jetties may lead to change in the pattern of coastal currents not only near the entrance of the lagoon, but also in the adjacent areas.
in this research, patterns of longshore currents are simulated for situations before and after construction of jetties on the mouth of the kiashahr lagoon.
moreover, wave induced currents play important roles in the determination of geometry and shape of coasts. Introduction: determination of waves and the pattern of coastal currents is the first step in finding the effective physical factors on marine environments and coastal regions.