Estimating Water Retention in Post-mining Excavations Using LiDAR ALS Data for the Strzelin Quarry,in Lower Silesia |
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| Authors: | Bartosz Jawecki Paweł B. Dąbek Katarzyna Pawęska Xiangdong Wei |
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| Affiliation: | 1.Institute of Landscape Architecture,Wroc?aw University of Environmental and Life Sciences,Wroc?aw,Poland;2.Institute of Environmental Protection and Development,Wroc?aw University of Environmental and Life Sciences,Wroc?aw,Poland;3.Institute of Environmental Engineering,Wroc?aw University of Environmental and Life Sciences,Wroc?aw,Poland;4.Department of Environmental Sciences, School of Resource & Environment,Hunan Agricultural University,Changsha,China |
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| Abstract: | A digital terrain model of the Strzelin granite quarry was created from ISOK project data obtained from airborne laser scanning (ALS). Based on 2009, 2012, and 2014 data, the volume of water in the Strzelin quarry’s two excavations were determined. Additionally, the predicted volume of retained water after mining ceases was calculated, assuming a water level of 150.0 m a.s.l. In 2014, the two reservoirs retained, respectively, ≈?0.14 and 0.01 million m3 of water. If the two pits are eventually connected, ≈?6.6 million m3 of water could be retained. Including the 2014 water volume as a small-scale retention basin would increase the volume of retained water in the ?l?za catchment and Strzelin County by 19.0%, and 34.2%, respectively. The hypothetical reservoir created after mining ends would increase small-scale (reservoir and pond) retention?≈?8 times in the ?l?za catchment and ≈?15 times in the County, constituting a significant improvement. |
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