The simulated groundwater level by dendrochronology can be applied to drought evaluation, drought period prediction and water resources management. Results show that the integration of dendrochronology and ANN renders high accuracy and efficiency in groundwater level simulation. The validated network and tree-rings are used to simulate groundwater level fluctuations during the past century. After the training process, validation to the model is undertaken. Tree-ring diameter and precipitation values are selected as inputs whilst groundwater level is chosen as the output. Multilayer percepetron (MLP) network is adopted for ANN. The present study is undertaken by selecting Quercus Castaneaefolia species in the alluvial aquifer of Caspian southern coasts, Iran. In this study, groundwater level fluctuations are simulated using dendrochronology (tree-ring) and artificial neural network (ANN) during 1912-2013. Dendrochronology, that is the use of tree-rings to reconstruct past events such as hydrologic and climatologic events, can be used to evaluate groundwater level fluctuations. It is necessary to study groundwater level fluctuations for managing disasters (such as drought) and water resources. Damian Frisby at 53.Groundwater is the most important water resource in semi-arid and arid regions such as Iran. “Both families have been notified and are thankful for the closure brought by the efforts of Bruce’s Legacy, the Fallen Leaf Fire Department, El Dorado County Search and Rescue and the El Dorado County Sheriff’s Office,” authorities said in the news release.Īnyone with information on Michael Whalen or on the location of his canoe is asked to contact Det. But detectives said there was no evidence of foul play. Authorities said the anchor was used for the canoe.īecause of the conditions of both of the remains, forensic examiners could not determine cause of the death. His body was discovered with a small anchor and rope tied around his legs. That same year, they located his van near Fallen Leaf Lake, but his canoe was never found. Whalen was reported missing in 2004 after traveling to the Lake Tahoe area from Florida.ĭetectives said he arrived in a van and was carrying a brown, wood-colored canoe. But forensic examiners were unable to determine a cause of death.Īuthorities also recovered Whalen’s body in October - about two months after Ellis’ body was found. Her body was discovered 16 years later, the El Dorado County Sheriff’s Office said in a news release Wednesay.ĭetectives said they believed she may have drowned herself. Related: Brrrr! Pics from Polar Plunge for Special Olympics of Nevada Related: Is climate change harming Lake Tahoe, and can it be stopped? Related: Police shoot suicidal subject after search in Old Southwest Reno The bodies of 71-year-old Cynthia Ellis, of South Lake Tahoe, and Michael Whalen, 74, of Florida, were recovered last year from Fallen Leaf Lake, which sits a little more than 1 mile south of Camp Richardson.Įllis, also known as Cynthia Prehoda, went missing in 2001. Two bodies that were found in a lake south of Lake Tahoe last year have been identified with the help of DNA samples, according to the El Dorado County Sheriff’s Office.
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