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1. Spatial uncertainty of rainfall and its impact on hydrological hazard forecasting in a small semiarid mountainous watershed

Author:
Xiaojun, Guo; Peng, Cui; Xingchang, Chen; Yong, Li; Ju, Zhang; Yuqing, Sun
Source:
Journal of hydrology 2021 v.595 pp. 126049
ISSN:
0022-1694
Subject:
watersheds,   etc   ; mountains; rain; uncertainty;     Show all 4 Subjects
Abstract:
... Rainfall in mountainous watershed presents high spatial variability due to elevation effects, and this introduces uncertainty in forecasting hydrological hazards such as water floods and debris flows. This study investigated the spatial variation of rainfall in a small watershed with a network of 10 rain gauges. A rainfall-elevation relationship was established based on data from 52 rainstorm even ...
DOI:
10.1016/j.jhydrol.2021.126049

2. On the Choice of Metric to Calibrate Time-Invariant Ensemble Kalman Filter Hyper-Parameters for Discharge Data Assimilation and Its Impact on Discharge Forecast Modelling

Author:
Bergeron, Jean; Leconte, Robert; Trudel, Mélanie; Farhoodi, Sepehr
Source:
Hydrology 2021 v.8 no.1
ISSN:
2306-5338
Subject:
watersheds,   etc   ; statistics; Canada;     Show all 3 Subjects
Abstract:
... An important step when using some data assimilation methods, such as the ensemble Kalman filter and its variants, is to calibrate its parameters. Also called hyper-parameters, these include the model and observation errors, which have previously been shown to have a strong impact on the performance of the data assimilation method. Many metrics can be used to calibrate these hyper-parameters but ma ...
DOI:
10.3390/hydrology8010036

3. Resilience in Complex Catchment Systems

Author:
Beevers, Lindsay; Bedinger, Melissa; McClymont, Kerri; Visser-Quinn, Annie
Source:
Water 2021 v.13 no.4
ISSN:
2073-4441
Subject:
watersheds,   etc   ; uncertainty; water;     Show all 3 Subjects
Abstract:
... In this paper, we explore how we can use catchment resilience as a unifying concept to manage and regulate catchments, using structured reviews to support our perspective. Catchments are complex systems with interrelated natural, social, and technical aspects. The exposure, vulnerability, and resilience of these aspects (separately and in combination) are the latent conditions, which, when trigger ...
DOI:
10.3390/w13040541

4. Numerical reconstruction of historical extreme floods: The Guadiana event of 1876

Author:
González-Cao, José; Fernández-Nóvoa, Diego; García-Feal, Orlando; Figueira, Jose R.; Vaquero, José M.; Trigo, Ricardo M.; Gómez-Gesteira, Moncho
Source:
Journal of hydrology 2021 v.599 pp. 126292
ISSN:
0022-1694
Subject:
watersheds,   etc   ; basins; river flow; Europe;     Show all 4 Subjects
Abstract:
... In recent decades, the development of numerical tools has facilitated the ability to reproduce extreme flood events, which allows a far better understanding of their features, contributing to mitigate their negative effects in similar future scenarios. This paper analyzes the flood event that occurred in December 1876 in Badajoz (Spain-Guadiana basin), one of the most catastrophic flood events rec ...
DOI:
10.1016/j.jhydrol.2021.126292

5. Integrated Framework for Detecting the Areas Prone to Flooding Generated by Flash-Floods in Small River Catchments

Author:
Costache, Romulus; Barbulescu, Alina; Pham, Quoc Bao
Source:
Water 2021 v.13 no.6
ISSN:
2073-4441
Subject:
watersheds,   etc   ; models; rivers; water; Romania;     Show all 5 Subjects
Abstract:
... In the present study, the susceptibility to flash-floods and flooding was studied across the Izvorul Dorului River basin in Romania. In the first phase, three ensemble models were used to determine the susceptibility to flash-floods. These models were generated by a combination of three statistical bivariate methods, namely frequency ratio (FR), weights of evidence (WOE), and statistical index (SI ...
DOI:
10.3390/w13060758

6. Compensation benefits allocation and stability evaluation of cascade hydropower stations based on Variation Coefficient-Shapley Value Method

Author:
Wang, Li; Li, Yinghai; Wang, Yongqiang; Guo, Jiali; Xia, Qingqing; Tu, Yulyu; Nie, Panpan
Source:
Journal of hydrology 2021 v.599 pp. 126277
ISSN:
0022-1694
Subject:
watersheds,   etc   ; hydrology; rivers; water power; China;     Show all 5 Subjects
Abstract:
... Maximizing the benefits of cascade hydropower stations will inevitably reduce the benefits of some upstream hydropower stations. In order to promote the joint operation and mutual cooperation between cascade hydropower stations, the scientific and fair allocation of compensation benefits between cascade hydropower stations is required. In this paper, a Variation Coefficient-Shapley Value Method fo ...
DOI:
10.1016/j.jhydrol.2021.126277

7. Regional scale hydrodynamic modeling of the river-floodplain-reservoir continuum

Author:
Fleischmann, A.S.; Brêda, J.P.F.; Passaia, O.A.; Wongchuig, S.C.; Fan, F.M.; Paiva, R.C.D.; Marques, G.F.; Collischonn, W.
Source:
Journal of hydrology 2021 v.596 pp. 126114
ISSN:
0022-1694
Subject:
watersheds,   etc   ; basins; drainage; hydrodynamics; rivers; satellite altimetry;     Show all 6 Subjects
Abstract:
... River floodplains and reservoirs interact throughout a basin drainage network, defining a coupled human-water system with multiple feedbacks. Recent modeling developments have aimed to improve the representation of such processes at regional to continental scales. However, most large-scale hydrological models adopt simplified lumped reservoir schemes, where an offline routine is run with inflows e ...
DOI:
10.1016/j.jhydrol.2021.126114

8. Testing the Efficiency of Parameter Disaggregation for Distributed Rainfall-Runoff Modelling

Author:
Moustakas, Sotirios; Willems, Patrick
Source:
Water 2021 v.13 no.7
ISSN:
2073-4441
Subject:
watersheds,   etc   ; runoff; spatial data; spatial variation;     Show all 4 Subjects
Abstract:
... A variety of hydrological models is currently available. Many of those employ physically based formulations to account for the complexity and spatial heterogeneity of natural processes. In turn, they require a substantial amount of spatial data, which may not always be available at sufficient quality. Recently, a top-down approach for distributed rainfall-runoff modelling has been developed, which ...
DOI:
10.3390/w13070972

9. Length‐to‐weight and length‐to‐length ratios of six cavefish species from the Pearl River Basin, South China

Author:
He, Anyou; Li, Yusen; Zhou, Lei
Source:
Journal of applied ichthyology 2021 v.37 no.2 pp. 334-336
ISSN:
0175-8659
Subject:
watersheds,   etc   ; biodiversity conservation; fish; ichthyology; rivers; China;     Show all 6 Subjects
Abstract:
... Length‐to‐weight and length‐to‐length ratios were estimated for six cavefishes including Yunnanilus longibarbatus, Yunnanilus bailianensis, Yunnanilus jinxiensis, Oreonectes polystigmus, Paranemachilus pingguoensis, and Paranemachilus genilepis from the upper reaches of the Pearl River, Guangxi Province, China (between 106.26E, 23.14N and 111.42E, 24.85N). The fish were captured between May and Oc ...
DOI:
10.1111/jai.14108

10. The Role of Large-Scale Bedforms in Driftwood Storage Mechanism in Rivers

Author:
Okitsu, Takara; Iwasaki, Toshiki; Kyuka, Tomoko; Shimizu, Yasuyuki
Source:
Water 2021 v.13 no.6
ISSN:
2073-4441
Subject:
watersheds,   etc   ; mathematical models; rivers; sediments; water;     Show all 5 Subjects
Abstract:
... The quantification of driftwood deposition in rivers is important for understanding the total budget of driftwood at the watershed scale; however, it remains unclear how such driftwood storage in rivers contributes to the overall system because of the difficulties in undertaking field measurements. Herein, we perform numerical simulations of driftwood deposition within an idealized river reach wit ...
DOI:
10.3390/w13060811

11. Bayesian regional flood frequency analysis with GEV hierarchical models under spatial dependency structures

Author:
Sampaio, Júlio; Costa, Veber
Source:
Hydrological sciences journal 2021 v.66 no.3 pp. 422-433
ISSN:
2150-3435
Subject:
watersheds,   etc   ; Bayesian theory; models; prediction; rivers; Brazil;     Show all 6 Subjects
Abstract:
... Bayesian hierarchical models have been increasingly used in regional flood frequency analysis due to their flexibility and ability to accommodate the spatial variability of flooding processes in distribution parameters. Hierarchical models based on the generalized extreme value (GEV) distribution are useful since they may combine scaling properties and distinct degrees of pooling in the shape para ...
DOI:
10.1080/02626667.2021.1873997

12. Functionalities of surface depressions in runoff routing and hydrologic connectivity modeling

Author:
Wang, Ning; Chu, Xuefeng; Zhang, Xiaodong
Source:
Journal of hydrology 2021 v.593 pp. 125870
ISSN:
0022-1694
Subject:
watersheds,   etc   ; hydrologic models; runoff; topography; North Dakota;     Show all 5 Subjects
Abstract:
... Hydrologic processes in depression-dominated areas are controlled by the spatial distribution of surface depressions and their dynamic hydrologic connectivity. Existing hydrologic models often utilize lumped ways to handle depressions, and hence their spatial features are lost in this simplification process. In this study, a unique watershed-scale, semi-distributed hydrologic model accounting for ...
DOI:
10.1016/j.jhydrol.2020.125870

13. Social Ecological Dynamics of Catchment Resilience

Author:
Adger, W. Neil; Brown, Katrina; Butler, Catherine; Quinn, Tara
Source:
Water 2021 v.13 no.3
ISSN:
2073-4441
Subject:
watersheds,   etc   ; ecosystems; environmental degradation; social sciences; water;     Show all 5 Subjects
Abstract:
... Catchment resilience is the capacity of a combined social ecological system, comprised of water, land, ecological resources and communities in a river basin, to deal with sudden shocks and gradual changes, and to adapt and self-organize for progressive change and transform itself for sustainability. This paper proposes that analysis of catchments as social ecological systems can provide key insigh ...
DOI:
10.3390/w13030349

14. Hydro-Geomorphologic-Based Water Budget at Event Time-Scale in A Mediterranean Headwater Catchment (Southern Italy)

Author:
Cuomo, Albina; Guida, Domenico
Source:
Hydrology 2021 v.8 no.1
ISSN:
2306-5338
Subject:
watersheds,   etc   ; drainage; hydrograph; runoff; water budget; Italy;     Show all 6 Subjects
Abstract:
... The Ciciriello catchment is a 3 km² drainage sub-basin of the Bussento river basin, located in the southern part of the Campania Region (Southern Italy). Since 2012, this catchment has been studied using an interdisciplinary approach—geomorphological, hydrogeological, and hydrological—and a hydro-chemical monitoring system. Following previous research, the aim of this paper is to calibrate, on thi ...
DOI:
10.3390/hydrology8010020

15. Frozen ground change and its potential influence on river discharge in the Tienshan Mountains, northwestern China

Author:
Wang, Xiqiang; Chen, Rensheng; Han, Chuntan; Yang, Yong; Liu, Junfeng; Liu, Zhangwen; Guo, Shuhai; Song, Yaoxuan
Source:
Hydrological sciences journal 2021 v.66 no.2 pp. 268-277
ISSN:
2150-3435
Subject:
watersheds,   etc   ; permafrost; river flow; summer; winter; China;     Show all 6 Subjects
Abstract:
... According to simulations, permafrost area in the Tienshan Mountains has decreased by about 1.73 × 10⁴ km² (or 20.91%) from the 1960s to the 2000s, and the freeze state of seasonally frozen ground (SFG) exhibited delaying freeze, advancing thaw, shortening freeze days and shallowing freeze depth. River discharge has changed largely, especially for winter and minimum monthly discharge. The rivers wi ...
DOI:
10.1080/02626667.2020.1851374

16. Multi-Scale Target-Specified Sub-Model Approach for Fast Large-Scale High-Resolution 2D Urban Flood Modelling

Author:
Zhao, Guohan; Balstrøm, Thomas; Mark, Ole; Jensen, Marina B.
Source:
Water 2021 v.13 no.3
ISSN:
2073-4441
Subject:
watersheds,   etc   ; hydrodynamics; landscapes; prediction; rain; water;     Show all 6 Subjects
Abstract:
... The accuracy of two-dimensional hydrodynamic models (2D models) is improved when high-resolution Digital Elevation Models (DEMs) are used. However, the entailed high spatial discretisation results in excessive computational expenses, thus prohibiting their implementation in real-time forecasting especially at a large scale. This paper presents a sub-model approach that adapts 1D static models to t ...
DOI:
10.3390/w13030259

17. Determination of retention value using Mike She model in the area of young glacial catchments

Author:
Cieśliński, Roman
Source:
Applied water science 2021 v.11 no.1 pp. 5
ISSN:
2190-5487
Subject:
watersheds,   etc   ; drainage; groundwater; mathematical models; water storage;     Show all 5 Subjects
Abstract:
... The aim of the paper is the identification of the kinds and conditions of retention occurring in the selected of young glacial catchment (the Potok Oliwski) in natural and anthropogenic conditions by means of the mathematic model of Mike She. As a result of the performed calculations it has been possible to determine that the studied area, thanks to the nature-shaped factors, has a high retention ...
DOI:
10.1007/s13201-020-01337-6

18. Flora of Small Reservoirs of Northeastern European Russia

Author:
Teteryuk, B. Yu.; Knyazeva, E. V.; Teteryuk, L. V.; Panyukov, A. A.
Source:
Inland water biology 2021 v.14 no.1 pp. 20-31
ISSN:
1995-0829
Subject:
watersheds,   etc   ; Charophyta; Russia; flora; inland waters; synanthropes;     Show all 6 Subjects
Abstract:
... The results of an analysis of the taxonomic and typological structure of the flora in small reservoirs of the Vychegda River basin (Komi Republic) are presented. It is found that the composition of the combined flora of the reservoirs includes 160 species and hybrids (including 28 species of bryophytes and 3 species of charophyte algae). In the presence of common features, the flora of each of the ...
DOI:
10.1134/S1995082921010120

19. Long-term temporal structure of catchment sediment response to precipitation in a humid mountain badland area

Author:
Juez, C.; Nadal-Romero, E.
Source:
Journal of hydrology 2021 v.597 pp. 125723
ISSN:
0022-1694
Subject:
watershed management; watersheds,   etc   ; badlands; databases; geomorphology; rain; sediment yield; sediments; spectral analysis; time series analysis; wavelet;     Show all 11 Subjects
Abstract:
... A long-term database with information on precipitation, discharge and sediment yield dynamics was analyzed to characterize the temporal structure response of a catchment in a humid mountain badland area. Due to the non-linearity and non-stationary nature of the data, a combination of frequency analysis and wavelet reconstruction techniques were initially used to determine the dominant time scales ...
DOI:
10.1016/j.jhydrol.2020.125723

20. Natural and anthropogenic forcings lead to contrasting vegetation response in long-term vs. short-term timeframes

Author:
Kazemzadeh, Majid; Noori, Zahra; Alipour, Hassan; Jamali, Sadegh; Seyednasrollah, Bijan
Source:
Journal of environmental management 2021 v.286 pp. 112249
ISSN:
0301-4797
Subject:
watershed management; watersheds,   etc   ; data collection; drought; humans; satellites; temperature; vegetation cover;     Show all 8 Subjects
Abstract:
... Understanding vegetation response to natural and anthropogenic forcings is vital for managing watersheds as natural ecosystems. We used a novel integrated framework to separate the impacts of natural factors (e.g. drought, precipitation and temperature) from those of anthropogenic factors (e.g. human activity) on vegetation cover change at the watershed scale. We also integrated several datasets i ...
DOI:
10.1016/j.jenvman.2021.112249