de.pangaea.dataset881634 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2024-07-19T15:22:31Z https://doi.pangaea.de/10.1594/PANGAEA.881634 2017-10-10T12:54:02 publication https://doi.org/10.1594/PANGAEA.881634 Heineke, Caroline

caroline.heineke@uni-muenster.de

https://orcid.org/0000-0001-8113-8711 information author Hetzel, Ralf https://orcid.org/0000-0002-3412-6344 information author Akal, Cüneyt author Christl, Marcus

mchristl@phys.ethz.ch

https://orcid.org/0000-0002-3131-6652 information author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Heineke, Caroline; Hetzel, Ralf; Akal, Cüneyt; Christl, Marcus (2017): Constraints on Water Reservoir Lifetimes From Catchment-Wide ¹⁰Be Erosion Rates-A Case Study From Western Turkey. Water Resources Research, 53(11), 9206-9224, https://doi.org/10.1002/2017WR020594 The functionality and retention capacity of water reservoirs is generally impaired by upstream erosion and reservoir sedimentation, making a reliable assessment of erosion indispensable to estimate reservoir lifetimes. Widely used river gauging methods may underestimate sediment yield, because they do not record rare, high-magnitude events and may underestimate bedload transport. Hence, reservoir lifetimes calculated from short-term erosion rates should be regarded as maximum values. We propose that erosion rates from cosmogenic 10Be, which commonly integrate over hundreds to thousands of years are useful to complement short-term sediment yield estimates and should be employed to estimate minimum reservoir lifetimes. Here, we present 10Be erosion rates for the drainage basins of six water reservoirs in Western Turkey, which are located in a tectonically active region with easily erodible bedrock. Our 10Be erosion rates for these catchments are high, ranging from ~170 to ~1040 t/km**2/yr. When linked to reservoir volumes, they yield minimum reservoir lifetimes between 25 ± 5 and 1650 ± 360 years until complete filling, with four reservoirs having minimum lifespans of <=110 years. In a neighboring region with more resistant bedrock and less tectonic activity, we obtain much lower catchment-wide 10Be erosion rates of ~33 to ~ 95 t/km**2/yr, illustrating that differences in lithology and tectonic boundary conditions can cause substantial variations in erosion even at a spatial scale of only ~50 km. In conclusion, we suggest that both short-term sediment yield estimates and 10Be erosion rates should be employed to predict the lifetimes of reservoirs. completed copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 27.1 27.1 38.2 38.2 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet unknown https://store.pangaea.de/Publications/HeinekeC-etal_2017/Heineke_etal_10Be_Data_Erosion_Rates_Turkey.xlsx download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: Menderes_Massif * LATITUDE: 38.200000 * LONGITUDE: 27.100000 * LOCATION: Turkey * METHOD/DEVICE: Multiple investigations