Proceedings of the International Association of Hydrological Sciences最新文献

{"title":"Modelling future hydroclimatic effects on the Coregonus migratorius spawning migration in the Selenga River and Lake Baikal","authors":"V. Moreydo, T. Millionshchikova, S. Chalov","doi":"10.5194/PIAHS-381-113-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-113-2019","url":null,"abstract":"Abstract. Regional climate change affects the flow conditions in\u0000river basins which can impact the health of aquatic ecosystems. Potential\u0000impacts of future climate scenarios on Coregonus migratorius spawning migration in the Selenga\u0000River were assessed. A regional process-based hydrological model was used to\u0000reproduce the historical trends in the annual flow and assess its future\u0000changes under several climate change scenarios. Annual flow projections were\u0000used to identify preferential river reaches for spawning activity of the\u0000Arctic cisco (Coregonus migratorius), based on the significant negative correlation of spawning\u0000activity with the Selenga River streamflow. The applied methodology shows\u0000that the projected decline in runoff of 10 % to 25 % in XXI century may\u0000result in shifting of the spawning locations further upstream of the\u0000Ulan-Ude city, a local “pollution hotspot”.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84416649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suspended sediment yield and climate change in Kamchatka, Far East of Russia","authors":"L. Kuksina","doi":"10.5194/PIAHS-381-55-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-55-2019","url":null,"abstract":"Abstract. Key factors of sediment yield formation and variability\u0000in the Kamchatsky Krai are relief characteristics and climate (especially\u0000precipitation). The last research in climate change in Kamchatka\u0000demonstrates climate warming – mean annual air temperature has increased on\u00001.5 ∘C during the period from 1951 to 2009 in average (the maximum\u0000increase was revealed in the west of Kamchatka and in the Kamchatka River\u0000valley, the minimum one – in the extreme south and north). Decrease of\u0000annual precipitation was observed at the same period. In addition frequency\u0000and intensity of precipitation is growing. Thereby described climate changes\u0000in Kamchatka influence on sediment yield characteristics directly (influence\u0000of precipitation on surface washout formation) and indirectly (through water\u0000runoff and hydrological regime of rivers changes). Analysis of\u0000spatio-temporal variability in suspended sediment yield demonstrated\u0000decrease since late 1970–early 1980 in the most part of\u0000rivers in the Kamchatsky Krai. Revealed fluctuations demonstrate very good\u0000coincidence with precipitation amount variability. Decrease of precipitation\u0000leads to corresponding diminution of rainfall erosive factor in the\u0000territory which is the key factor of suspended sediment yield formation and\u0000variability in rivers in the Kamchatsky Krai. The value of reduction varies\u0000from 1 % to 45 % and involves decrease of erosion rates in the territory.\u0000Thereby climate change influences on suspended sediment yield in\u0000multiple-valued way. Income of friable volcanic deposits on the catchment\u0000surface is the key factor of suspended sediment yield formation and\u0000variability in some river basins under the impact of volcanic eruptions, and\u0000in combination with raising precipitation it can lead to catastrophic\u0000increase of sediment yield.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73679413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated approach to study river fluxes, water and sediment sources apportionment in sparsely monitored catchment","authors":"S. Chalov, P. Terskii, T. Pluntke, L. Efimova, V. Efimov, V. Belyaev, A. Terskaia, M. Habel, D. Karthe, C. Bernhofer","doi":"10.5194/PIAHS-381-7-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-7-2019","url":null,"abstract":"Abstract. The paper presents an integrated approach for the apportionment of water and sediment sources and pathways in ungauged territories. The approach comprises various elements such as a large-scale semi-distributed hydrological and erosion model (using the SWAT tool), a statistical assessment of regular discharge data, the discrimination of runoff sources using end-member mixing analysis (EMMA), the apportionment of sediment sources using fingerprinting technique and sediment concentration and water discharge hysteresis rating curves analyses. The approach has been applied to Western Dvina River Basin (WDRB). The results discussed in the paper indicate main features of the water and sediment regime. The components of the presented framework provide a guide for detailed water and sediment studies making it an inexpensive way to develop a roadmap to understand important hydrological processes at a watershed scale.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84274137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnitude and frequency of debris and slush flows in the Khibiny mountain valleys, Kola Peninsula, NW Russia","authors":"E. Garankina, V. Belyaev, F. Romanenko, M. Ivanov, N. Kuzmenkova, A. Gurinov, E. Tulyakov","doi":"10.5194/PIAHS-381-37-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-37-2019","url":null,"abstract":"Abstract. Available results for five studied valleys of the Khibiny\u0000Mountains, Kola Peninsula, suggest that slush flows and, possibly for some\u0000valleys, typical debris flows with lower frequency, are a leading mechanism\u0000for downstream sediment delivery and valley floor topographical formation.\u0000Typical fluvial topography in slush flow-affected basins is extremely\u0000suppressed or nonexistent, since under such conditions, stream channels are\u0000unable to rework slush flow deposits. The recovery phase of fluvial\u0000topography can serve as an indicator of the magnitude and time passed since\u0000the last extreme event. A combination of grain size analysis, radionuclide\u0000fingerprinting with the 232Th content in the finer-grained sediment\u0000matrix (size <10 mm) and 14C dating, were applied to reveal\u0000the age and common structure of debris and slush flow environments and to\u0000investigate the main factors in their lithodynamics. Those helped to\u0000estimate transportation distances and capacities of the flows and the amount\u0000of fluvial reworking of its deposits with time. Application of radiocarbon\u0000dating to determine absolute ages (about 30 dates) of stabilization periods\u0000for the colluvial cones, mountain fans and valley bottoms and integration\u0000with other available chronological data provided a basis for distinguishing\u0000several stages of decreased activity of debris and slush flows and extreme\u0000slope failures through the second half of the Holocene. Field mapping and\u0000remote sensing data interpretation revealed spatial distribution patterns of\u0000debris and slush flows. Geomorphic analysis of large relic landforms in\u0000valley bottoms confirms, in general, the case for a significant reduction of\u0000debris flow magnitude since the last deglaciation and distinct shift to\u0000slush flow processes with much lower clastic content. A reliable chronology\u0000of the early events is yet to be obtained representing a challenging problem\u0000for future research.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80038763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal trends of 137Cs activity concentration in pond waters in the vicinity of Fukushima Dai-ichi nuclear power plant","authors":"Y. Wakiyama, A. Konoplev, T. Wada, T. Takase, Yasunori Igarashi, K. Nanba, Ian Byrnes","doi":"10.5194/PIAHS-381-101-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-101-2019","url":null,"abstract":"Abstract. Closed and semi-closed water bodies, such as lakes and\u0000ponds, are important water resources in Fukushima area and they are the most\u0000sensitive environments to radioactive contamination after the Fukushima\u0000Dai-ichi nuclear power plant accident. Wakiyama et al. (2017) investigated\u0000137Cs activity in water and bottom sediment in four ponds; Suzuuchi (SU), Funasawa (FS), Inkyozaka (IZ), and Kashiramori (KM), within 10 km zone\u0000from the FDNPP during 2015–2016. This study follows up their observation to address longer time trends of 137Cs activity concentration in pond waters and to show speciation of 137Cs in soil and bottom sediment.\u0000Mean total 137Cs activity concentration in water ranged from\u00002.5 to 29 Bq L−1. There was not found steady trend in the activity concentration\u0000of total and particulate 137Cs for four ponds. The concentration of\u0000dissolved 137Cs was usually low in winter during the entire observation\u0000period in all four ponds. A tendency to a decrease in the 137Cs\u0000activity concentration in suspended sediments was found for four ponds and\u0000the decreasing rate constants, including radiological decay, on SU, FS, IZ\u0000and KM were 0.33, 0.53, 0.29 and 0.25 yr−1, respectively. The results\u0000of sequential extractions of soil and bottom sediment samples showed higher\u0000proportion of bioavailable 137Cs, i.e., exchangeable and organic bound\u0000137Cs, in bottom sediment than in the soil.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73078395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of fluvial processes on medieval settlement Lukovskoe (Tatarstan, Russia)","authors":"A. Gafurov, I. Gainullin, B. Usmanov, P. Khomyakov, A. Kasimov","doi":"10.5194/PIAHS-381-31-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-31-2019","url":null,"abstract":"Abstract. This work is continuation of the research aimed at\u0000developing of a system for analysing of risks of destruction of\u0000archaeological objects of Volga-Bulgaria period (X–XIII centuries AD) on\u0000the territory of the Republic of Tatarstan. Most of the Volga-Bulgaria\u0000settlements located on the small rivers banks. This fact is determining the\u0000risk of their destruction by natural processes. In order to identify the\u0000risk of transformation of archaeological sites by fluvial processes bank\u0000erosion dynamics at Lukovskoe fortified settlement evaluated. Modern field\u0000survey with use of UAV and GNSS methods applied to study the relief of\u0000monument territory. The measured data were analysed using the Geographical\u0000Information System (GIS) to evaluate intensity of bank erosion. Historical\u0000maps, archival remote sensing data and actual orthophotoplans compared to\u0000get quantitative characteristics of monument territory damage. The main\u0000factors that influence bank erosion at Lukovskoe fortified settlement\u0000placement are the meandering of the Kubnya riverbed, bank height and the\u0000ground that forms it. This study shows that remote sensing and 3-D-modelling\u0000on the base of UAV survey is very important in study of fluvial processes\u0000dynamics as a factor of archaeological objects destruction. The results of\u0000research will help to identify trends in monuments state and to quantify the\u0000risks of their destruction.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77039247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preface: Land use and climate change impacts on erosion and sediment transport","authors":"S. Chalov, V. Golosov, A. Collins, M. Stone","doi":"10.5194/PIAHS-381-1-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-1-2019","url":null,"abstract":"<jats:p>\u0000 </jats:p>","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78849841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern patterns of spatial distribution of the main soil parameters: case study of the Republic of Tatarstan, Russia","authors":"A. Gafurov, A. Sharifullin","doi":"10.5194/PIAHS-381-25-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-25-2019","url":null,"abstract":"Abstract. The territory of the Republic of Tatarstan (RT) belongs\u0000to the region with the most developed agriculture in Russia and the Middle\u0000Volga region. However, the formation of a system of accurate farming in the\u0000Republic is just beginning. To ensure precision farming, it is necessary to\u0000precisely know cropland borders, as well as the agrochemical properties of\u0000soils (pH, humus content, potassium and phosphorus content). The present\u0000study was carried out based on aerial images analyses of the most\u0000intensively used part of the RT both with identification of soil indicators\u0000for each of the fields. The availability of information on the spatial\u0000location of various cultivated crops makes it possible to assess the role of\u0000soil characteristics in these crops.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77420918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical modeling and forecast of channel changes on the river Lena near city Yakutsk","authors":"P. Golovlyov, E. D. Kornilova, I. Krylenko, I. Krylenko, Vitaly V. Belikov, A. Zavadskii, E. Fingert, E. Fingert, N. Borisova, E. Morozova","doi":"10.5194/PIAHS-381-65-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-65-2019","url":null,"abstract":"Abstract. STREAM_2D software package was applied to\u0000retrospective and predictive simulations of the Lena River near city Yakutsk\u0000hydraulic and channel changes during ice-free period. The modelling results\u0000indicate significant correspondence of simulated water discharges\u0000distribution and water levels with observed ones for the period 2001–2016.\u0000Model has captured main erosion and depositional zones observed in the\u00002009–2016 years. Combination of typical monthly average hydrographs of 1 %,\u000010 % and 50 % return intervals was used as an initial parameter for 10-year\u0000channel changes forecast. According to the simulation results, degradation\u0000of the Adamovskaya branch will be continued, which is the most negative\u0000impact for the Yakutsk city infrastructure maintenance. At the end of the\u0000forecast period the equal distribution between Adamovskaya and Buorylarskaya\u0000channels is possible, which is a positive trend from the point of view of\u0000the city water supply system.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88364265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two-dimensional hydrodynamic modelling of channel processes and floods characteristics at the confluence of the Amur and Zeya rivers","authors":"E. Fingert, I. Krylenko, Vitaly V. Belikov, P. P. Golovlyov, A. Zavadskii, M. Samokhin","doi":"10.5194/PIAHS-381-73-2019","DOIUrl":"https://doi.org/10.5194/PIAHS-381-73-2019","url":null,"abstract":"Abstract. Two-dimensional hydrodynamic STREAM_2D\u0000model have been applied to the confluence of Amur and Zeya rivers. Main flow\u0000characteristics and possible channel changes are considered during modeling\u0000for two scenarios – without dams near Big Heihe Island (1) and with four\u0000dams in the side channels around the island (2). Results of modeling\u0000demonstrate impact of dams construction on flow concentrating in the main\u0000channel, which can lead to increasing of flow velocities and subsequent\u0000erosion in main Amur River channel downstream the river confluence.\u0000","PeriodicalId":53381,"journal":{"name":"Proceedings of the International Association of Hydrological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81889623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}