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Coastal environmental degradation as a result of Caspian Sea water level fluctuation are very probable and human behaviors in non-optimal choice of the land use locate intensify these losses. Coastal tourism, as one of the coastal land uses is heavily influenced by fluctuations in sea level in both marine transgression-regression statuses. In current study, to investigate the Caspian Sea water level fluctuation impacts on coastal land use and urban tourism (Noor and Royan Cities), at first, sea level historical recorded data in Baku, Bandar Anzali and Nowshahr tide gauge stations were studied during 1840 to 2019. Landsat and Sentinel-2 satellite images and histogram filtering were used to extract the shorelines corresponding to the mentioned levels. Survey the tide gauge data showed that the lowest and highest water levels were recorded in 1977 (-28.5 meter) and 1993 (25.24 meter), respectively. According to the latest water level data, its value on November 2019 has reached the lowest level in the last three decades (-27.31 meter). 214 hectares of coastal lands of Noor and Royan Cities have been submerged due to the Caspian Sea water level rising from 1977 to 1995. Analyzing the Royan city land use in relation to the shoreline of July 1995 shows that 11 city blocks have went beyond this shoreline and have expanded to the sea. Interesting facts about these 11 blocks is that they are residential and tourism land uses. Also, in the coastal zone of Noor city, three important utilities of coastal tourism, including groin built in the breakwater of Noor recreational port, Negin Noor coastal complex and floating pier of Aryan Hotel, are the most important utilities related to Caspian Sea water level fluctuation that their performance is strongly influenced by these fluctuations.

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In this study is predicted the groundwater level of Sharif Abad catchment using some artificial intelligence models. For this purpose used of monthly groundwater levels for modeling in the three observed wells located in the Sharif Abad watershed of Qom. To compare the results of the hybrid model of wavelet analysis-neural network (WNN), genetic programming (GP) multiple linear regression (MLR) and artificial neural network (ANN), two criteria of root mean squared error (RMSE) and nash-sutcliffe coefficient of efficiency (E) is used. The results of the study indicated that the WNN models provide more accurate monthly groundwater level predicted in compared to the ANN, GP and MLR models so the nash-sutcliffe coefficient in WANN model for piezometers 1, 2 and 3 are 0.98, 0.98 and 0.95, respectively.

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حذف شدیک جمله Identify water resources management and proper application of relevant officials and managers are the main concern. Groundwater as a most important natural resources of Iran needs to planning and management of all aspects. In this regard, a study done of the Shaharchay river basin in the west of the Urmia Lake and the northern structural, sedimentary zone of Sanandaj - Sirjan. The aim of the study is to identify areas where the water table is higher in groundwater. To achieve this, an interpolation of (IDW) water level underground of Shaharchay by using the data of piezometeric well, then matching results with the position of faults and available tectonic seismic data. fractures were checked and the role of basin natural characteristics such as slope, lithology, soil type, ages of Geological, precipitation and landuse on groundwater level fluctuations were checked as well. Investigations show 4 different patterns of movement of groundwater in the basin area. Except of fault, other criteria alone are not much of a water table. The results show that the the western part of the water table is located in a very low of ​​zoning , which has very high mountains with high slopes, high rainfall, no fracture Quaternary and pasture. Eastern part of the basin is located in the area of ​​medium and high underground water level only a part of the shores of Urmia Lake in this zoning has a very high water table. With very little gradient, local average precipitation, high permeability, active Quaternary faults, the garden and the city landuse. But the center of the basin zoning was very high with very low permeability, high slope, average precipitation and mixture of garden, forest and grassland usages. basin center located on high seismic intensity zone and density Quaternary faults. only because of the high level in the basin center of Silvaneh are active faults and a high intensity tectonic seismic.