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Discussion papers | Copyright
https://doi.org/10.5194/nhess-2017-212
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 07 Jul 2017

Research article | 07 Jul 2017

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This discussion paper is a preprint. A revision of the manuscript is under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Analysis of decadal land cover changes and salinization in Urmia Lake Basin using remote sensing techniques

Yusuf Alizade Govarchin Ghale, Metin Baykara, and Alper Unal Yusuf Alizade Govarchin Ghale et al.
  • Climate and Sea Sciences Department, Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak 34469, Istanbul, Turkey

Abstract. Urmia Lake located in the north-west of Iran, is one of the largest hyper-saline lakes in the world. In recent years, most of the Urmia Lake have been rendered to unusable lands. Drought and rapid increase in agricultural activities are the most important reasons behind the shrinkage of the Lake. This kind of exploitation with the added salinity from irrigation occurring over time has caused increased soil salinity in the basin leading up to desertification. Soil salinity research are crucial to understand underlying causes and consequences of the drying Urmia Lake. In this study, we use remote sensing technology and image processing techniques to detect spatio-temporal variability of salt body, salt affected lands, and development of irrigated lands to estimate the extend of salinization in terms of spectral response of satellite images for the Urmia Lake Basin from 1975 to 2016. The results of this study indicate that salt and salty soil areas has increased dramatically from 1995 to 2014 and more than 5000 km2 of Urmia Lake's water surface area was converted to salt or salty soil bodies during recent years. Salinization and desertification progress are not limited to just dried bottom of the Urmia Lake. Although the area of irrigated lands has increased more than two times during the studied period, soil salinity has increased in regions close to Urmia Lake too. This desertification in the basin have potential to be the source of dust storms, which have adverse effects on people's life and climate as well.

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Yusuf Alizade Govarchin Ghale et al.
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We would like to submit our article titled Analysis of decadal land cover changes and salinization in Urmia Lake Basin using remote sensing techniques to be reviewed as a potential publication for Journal of Natural Hazards and Earth System Sciences. The aim of this research is to use remote sensing technology and image processing techniques to detect spatio-temporal variability of salt body, salt affected lands, and irrigated lands in the basin to understand the extend of salinization.
We would like to submit our article titled Analysis of decadal land cover changes and...
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