in this study some thermodynamic parameters including freezing point, boiling point and the vapor pressure of urmia lake salt water were investigated as some important environmentally monitored physicochemical properties of urmia lake. in this regard salt concentration is chiefly responsible for the modification of the thermodynamic properties of urmia lake water which affects its overall en...

urmia lake and its surroundng wetlands have been severely affected by recent droughts (1998–2003) and a considerable decrease in inflow has affected lake ecosystem components. integrated ecosystem-based management is a useful managing tool for the wise use and biodiversity conservation of wetlands. in the process of developing an integrated ecosystem-based management model for urmia lake, the i...

introduction azarshahr plain is one of the plains adjacent tothe lake urmia that has been faced, during recent years,withover extraction of groundwater and alsoexposed to salinity enrichment. on the other hand, urmia lake with about 5000 square kilometers is the relatively vastlake with hyper-saline water as a rare biosphere resource in iran and the world. this lake has a great economic, social...

abstract the urmia lake as an important water body in the northwest of iran, recently is faced with a critical level reduction, which makes it important to evaluate the causes. in this regard understanding of the lake's behavior and assessing effect of tele-connections on lake level oscillations is necessary. this subject constructs objective of the present paper that applies the spectral analy...

over the past years, lake water levels have decreased considerably by various factors and the subsequent emergence of salt plain has brought disastrous consequences that need an essential action. therefore, this study aimed to investigate the effects of drying up and increasing lake water salt and landsat satellite images were used during different time periods in 9 years. to identify the new a...

Abstract The existence of reliable rain-gauge networks is a necessity in managing water sources and the relevant environmental issues any basin. present study aimed to investigate network rank stations Tazehkand sub-basin southwest Lake Urmia, Iran, using entropy–copula approach data obtained from six Siminehrood basin Northwestern Iran between 1981 2019. interaction effects were investigated c...

We study inhomogeneous host-pathogen dynamics to model the global amphibian population extinction in a lake basin system. The lake basin system is modeled as quenched disorder. In this model we show that once the pathogen arrives at the lake basin it spreads from one lake to another, eventually spreading to the entire lake basin system in a wave like pattern. The extinction time has been found ...

Situated in the Talvar valley of the Bijar County, Tepe Gheshlagh is an archaeological site with a sequence spanning the Chalcolithic through to the Bronze Age. Two seasons of salvage excavations have covered the site as it will be submerged as part of the intended lake of the Talvar Dam. Results from the excavations show evidence of long-lasting Chalcolithic (Dalma) settlements at the site. Da...

Urmia Lake has been designated as an international park by the United Nations. The lake occupies a 5700 km2 depression in northwestern Iran. Thirteen permanent rivers flow into the lake. Water level in the lake has been decreased 3.5 m in the last decade due to a shortage of precipitation and progressively dry climate. Geologically the lake basin is considered to be a graben of tectonic origin....