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1. Watershed delineation on a hexagonal mesh grid

Author:
Liao, Chang; Tesfa, Teklu; Duan, Zhuoran; Leung, L. Ruby
Source:
Environmental modelling & software 2020 v.128 pp. 104702
ISSN:
1364-8152
Subject:
watershed hydrology; watersheds,   etc   ; mathematical models; United States;     Show all 4 Subjects
Abstract:
... Spatial discretization is the cornerstone of all spatially-distributed numerical simulations including watershed hydrology. Traditional square grid spatial discretization has several limitations including inability to represent adjacency uniformly. In this study, we developed a watershed delineation model (HexWatershed) based on the hexagon grid spatial discretization. We applied this model to two ...
DOI:
10.1016/j.envsoft.2020.104702

2. Evaluation of two generalized complementary functions for annual evaporation estimation on the Loess Plateau, China

Author:
Zhou, Haixiang; Han, Songjun; Liu, Wenzhao
Source:
Journal of hydrology 2020 v.587 pp. 124980
ISSN:
0022-1694
Subject:
watersheds,   etc   ; evaporation; hydrology; China;     Show all 4 Subjects
Abstract:
... Generalized complementary functions, which describe the relationship between the ratio of actual evaporation over the Penman potential evaporation (E/EPₑₙ) and the proportion of the radiation term in EPₑₙ (Eᵣₐd/EPₑₙ) have not been widely used at annual time scales. In this study, the generalized nonlinear advection-aridity function (GNAA) and sigmoid generalized complementary function (SGCF) were ...
DOI:
10.1016/j.jhydrol.2020.124980

3. Optimal locations for flow and velocity sensors along a river channel

Author:
Zubelzu, Sergio; Rodríguez-Sinobas, Leonor; Segovia-Cardozo, Daniel; Díez-Herrero, Andrés
Source:
Hydrological sciences journal 2020 v.65 no.5 pp. 800-812
ISSN:
2150-3435
Subject:
watersheds,   etc   ; monitoring; rivers; Spain;     Show all 4 Subjects
Abstract:
... A novel methodology for the optimal placement of sensors in watercourses is presented. The methodology aimed at finding the optimal locations for the placement of sensors to maximize the amount of information to monitor flow and velocity in watercourses. The methodology is based on the maximization of the Gram determinant of the sensor responses at each possible location or a combination of locati ...
DOI:
10.1080/02626667.2019.1654610

4. Discussion of “How to improve attribution of changes in drought and flood impacts”

Author:
Arnbjerg-Nielsen, Karsten
Source:
Hydrological sciences journal 2020 v.65 no.3 pp. 487-488
ISSN:
2150-3435
Subject:
watersheds,   etc   ; drought; floods;     Show all 3 Subjects
Abstract:
... The opinion paper by Kreibich et al. provides interesting insights into the interplay between floods and droughts, which are often ignored. The structure of the paper is original and the findings of high interest. It may however be difficult to obtain the required data to pursue the research agenda in actual catchments. This discussion paper suggests various ways in which the linkages between floo ...
DOI:
10.1080/02626667.2019.1701192

5. Incompleteness of the geological record in Middle-Upper Pleistocene key sections of the Northern Caspian Lowland

Author:
Svitoch, A.A.; Makshaev, R.R.
Source:
Quaternary international 2020 v.540 pp. 78-96
ISSN:
1040-6182
Subject:
watersheds,   etc   ; Pleistocene epoch; river water;     Show all 3 Subjects
Abstract:
... Pleistocene key sections of the Northern Caspian Lowland are characterized by the incompleteness of the geological record, which is presented in depositional breaks, their duration, causes, and types. Depositional breaks occurred in all periods of the Middle and the Late Pleistocene and occupied various time intervals, usually quite continuous – from ∼180 ka (Cherny Yar) to 100–110 ka (Alexandrov ...
DOI:
10.1016/j.quaint.2019.04.030

6. Water use control system in China

Author:
Shen, Dajun; Guna, Ali; He, Xiaodan
Source:
International journal of water resources development 2020 v.36 no.4 pp. 590-609
ISSN:
1360-0648
Subject:
watersheds,   etc   ; management systems; China; Yellow River;     Show all 4 Subjects
Abstract:
... China is developing a complicated three-aspect water use control system. Spatially, the system includes river basin, province, prefecture, county, permit, and individual users; temporally, it consists of annual average and annual/seasonal frameworks; and in terms of management objectives, it combines abstraction, consumption and use. Technical consistency is required in volume, space, timing, mana ...
DOI:
10.1080/07900627.2019.1676202

7. Dominant mechanism for annual maximum flood and sediment events generation in the Yellow River basin

Author:
Ran, Qihua; Zong, Xinyi; Ye, Sheng; Gao, Jihui; Hong, Yanyan
Source:
Catena 2020 v.187 pp. 104376
ISSN:
0341-8162
Subject:
watersheds,   etc   ; floods; rain; runoff; sediments; Yellow River;     Show all 6 Subjects
Abstract:
... Along with big floods, the heavily loaded sediments have caused devastating social and economic impairments in the Yellow River Basin (YRB). However, the regional differences in the dominant mechanisms for these extreme events haven’t been fully understood. This study selected 68 hydrological stations in the YRB to examine the seasonality of annual maximum rainfall, runoff and sediment events to e ...
DOI:
10.1016/j.catena.2019.104376

8. Evaluation of typical methods for baseflow separation in the contiguous United States

Author:
Xie, Jiaxin; Liu, Xiaomang; Wang, Kaiwen; Yang, Tiantian; Liang, Kang; Liu, Changming
Source:
Journal of hydrology 2020 v.583 pp. 124628
ISSN:
0022-1694
Subject:
watersheds,   etc   ; base flow; rivers; United States;     Show all 4 Subjects
Abstract:
... Baseflow is the slowly varying portion of streamflow, and it is essential for sustaining river flows. Several methods have been developed for separating baseflow from streamflow. However, due to the lack of measured baseflow, past studies generally compared these baseflow separation methods qualitatively based on their hydrologic plausibility. To quantitively determine which baseflow separation me ...
DOI:
10.1016/j.jhydrol.2020.124628

9. Flash droughts in the Pearl River Basin, China: Observed characteristics and future changes

Author:
Li, Jun; Wang, Zhaoli; Wu, Xushu; Guo, Shenglian; Chen, Xiaohong
Source:
The Science of the total environment 2020 v.707 pp. 136074
ISSN:
0048-9697
Subject:
watersheds,   etc   ; climate models; drought; heat; rivers; China;     Show all 6 Subjects
Abstract:
... Heat wave flash drought or precipitation deficit flash drought has devastating impacts on society and the environment. This study explored the historical changes (1960–2015) of the two categories of flash drought over the Pearl River Basin (PRB) in China, and revealed how they would change in the future (2016–2100), by coupling the variable infiltration capacity mode with the global climate model ...
DOI:
10.1016/j.scitotenv.2019.136074

10. Correction to: Assessing climate change impacts on water resources in the Benue River Basin, Northern Cameroon

Author:
Nonki, Rodric M.; Lenouo, André; Lennard, Christopher J.; Tchawoua, Clément
Source:
Environmental earth sciences 2020 v.79 no.5 pp. 111
ISSN:
1866-6280
Subject:
watersheds,   etc   ; climate change; water resources; Cameroon;     Show all 4 Subjects
Abstract:
... The original article has been published inadvertently with some errors in Fig. 1 legend and we have also missing a reference of that figure. ...
DOI:
10.1007/s12665-020-8865-0

11. Joint frequency analysis and uncertainty estimation of coupled rainfall–runoff series relying on historical and simulated data

Author:
Dodangeh, Esmaeel; Shahedi, Kaka; Pham, Binh Thai; Solaimani, Karim
Source:
Hydrological sciences journal 2020 v.65 no.3 pp. 455-469
ISSN:
2150-3435
Subject:
watersheds,   etc   ; hydrologic engineering; rain; runoff; uncertainty;     Show all 5 Subjects
Abstract:
... Joint frequency analysis and quantile estimation of extreme rainfall and runoff (ERR) are crucial for hydrological engineering designs. The joint quantile estimation of the historical ERR events is subject to uncertainty due to the errors that exist with flow height measurements. This study is motivated by the interest in introducing the advantages of using Hydrologic Simulation Program-Fortran (H ...
DOI:
10.1080/02626667.2019.1704762

12. Automatic calibration of a whole-of-basin water accounting model using a comprehensive learning particle swarm optimiser

Author:
Gao, Lei; Kirby, Mac; Ahmad, Mobin-ud-Din; Mainuddin, Mohammed; Bryan, Brett A.
Source:
Journal of hydrology 2020 v.581 pp. 124281
ISSN:
0022-1694
Subject:
watersheds,   etc   ; algorithms; basins; hydrologic models; prediction; Australia;     Show all 6 Subjects
Abstract:
... We present a two-step framework for calibrating complex, many-parameter hydrological models at basin-scale. The framework first calibrates parameters for each catchment/sub-basin sequentially and then fine-tunes parameters as needed. We implemented a comprehensive learning particle swarm optimiser (CLPSO) as the calibrator and applied the two-step CLPSO tool in calibrating parameters of a water ac ...
DOI:
10.1016/j.jhydrol.2019.124281

13. A homogeneity-based feature selection algorithm for regionalization of watersheds

Author:
Ahani, Ali; Mousavi Nadoushani, S. Saeid; Moridi, Ali
Source:
Hydrological sciences journal 2020 v.65 no.2 pp. 269-280
ISSN:
2150-3435
Subject:
watersheds,   etc   ; Monte Carlo method; algorithms; basins; Iran;     Show all 5 Subjects
Abstract:
... An algorithm is proposed to find an appropriate selection of available watershed features for the regionalization of watersheds. Also, the algorithm is able to determine an appropriate number of regions for regional flood frequency analysis. The proposed algorithm is applied to data related to the Karun-e-Bozorg basin in the southwest of Iran. The results show that the proposed algorithm is effici ...
DOI:
10.1080/02626667.2019.1686638

14. Depression threshold control proxy to improve HEC-HMS modeling of depression-dominated watersheds

Author:
Grimm, Kendall; Chu, Xuefeng
Source:
Hydrological sciences journal 2020 v.65 no.2 pp. 200-211
ISSN:
2150-3435
Subject:
watersheds,   etc   ; drainage systems; hydrologic models; topography;     Show all 4 Subjects
Abstract:
... Many hydrologic models utilize delineation results from traditional methods which create a hydrologically connected drainage system. In depression-dominated areas, topographic characteristics of depressions are vital to modeling unique hydrologic processes associated with puddle-to-puddle (P2P) filling-spilling dynamics. The objective of this study is to evaluate the impacts of the P2P processes a ...
DOI:
10.1080/02626667.2019.1690148

15. Determination of drought intensity in Seyhan and Ceyhan River Basins, Turkey, by hydrological drought analysis

Author:
Altın, Türkan Bayer; Sarış, Faize; Altın, Bekir Necati
Source:
Theoretical and applied climatology 2020 v.139 no.1-2 pp. 95-107
ISSN:
0177-798X
Subject:
watersheds,   etc   ; basins; drought; stream flow; Turkey (country);     Show all 5 Subjects
Abstract:
... This paper studied hydrological drought identified by the Streamflow Drought Index (SDI) at eight river-gauging stations in the Eastern Mediterranean part of Turkey for a roughly 43-year period covering from 1972 to 2014 (4 stations), from 1973 to 2015 (2 stations), and from 1969 to 2011 (2 stations). Results of SDI analyses indicate that the number of drought years was highest during the 3-month ...
DOI:
10.1007/s00704-019-02957-y

16. Reduction of the Criteria System for Identifying Effective Reservoirs in the Joint Operation of a Flood Control System

Author:
Li, Jieyu; Zhong, Ping-an; Zhu, Feilin; Chen, Juan; Yang, Minzhi; Fu, Jisi; Liu, Weifeng
Source:
Water resources management 2020 v.34 no.1 pp. 71-85
ISSN:
0920-4741
Subject:
watersheds,   etc   ; flood control; fuzzy logic; China;     Show all 4 Subjects
Abstract:
... The accurate and efficient identification of effective reservoirs plays an important role in the real-time flood control operation of multireservoir systems. The redundancy of the initial criteria system affects the efficiency of identifying effective reservoirs. In this paper, a criteria reduction model based on the equivalence relation of rough set theory is proposed to solve this problem. Corre ...
DOI:
10.1007/s11269-019-02391-9

17. Integrated Groundwater Resources Management: Spatially-Nested Modelling Approach for Water Cycle Simulation

Author:
Ma, Q.; Abily, M.; Du, M.; Gourbesville, P.; Fouché, Oliver
Source:
Water resources management 2020 v.34 no.4 pp. 1319-1333
ISSN:
0920-4741
Subject:
watershed hydrology; watersheds,   etc   ; decision support systems; deterministic models; groundwater; hydrologic cycle; water resources; water security;     Show all 8 Subjects
Abstract:
... Groundwater resources is one of the key water resources mobilized to support water uses of modern societies. The growing competition among water uses and complexity of faced situations requests a holistic approach able to ensure efficient answer to demands and at the same time satisfied water security. The current demands for integrated groundwater resources management drive the groundwater modell ...
DOI:
10.1007/s11269-020-02504-9

18. Watershed management index based on the village watershed model (VWM) approach towards sustainability

Author:
Sriyana, Ignatius; De Gijt, J.G.; Parahyangsari, Sri Kumala; Niyomukiza, John Bosco
Source:
International soil and water conservation research 2020 v.8 no.1 pp. 35-46
ISSN:
2095-6339
Subject:
watershed management; watersheds,   etc   ; gender; hydrologic models; management systems; planning; soil; stakeholders; villages; water conservation; water resources;     Show all 11 Subjects
Abstract:
... In the current study, we examine the Indonesian government’s watershed management program, which was established in 2001. In 2005, the Coordination Team for Rescue of Water Resources (CTRWR) was established to execute the program on a national level. However, at the time, field implementation was a sectoral interest due to the lack of program integration. To this end, the Indonesian government pro ...
DOI:
10.1016/j.iswcr.2020.01.003

19. Towards quick parameter estimation of hydrological models with large number of computational units

Author:
Vema, Vamsi Krishna; Sudheer, K.P.
Source:
Journal of hydrology 2020 v.587 pp. 124983
ISSN:
0022-1694
Subject:
watersheds,   etc   ; hydrologic models; prediction; spatial variation; stream flow; water quality;     Show all 6 Subjects
Abstract:
... Distributed hydrologic models represent the spatial heterogeneity within the watersheds, but are computationally intensive. The problem of computational effort is further exacerbated in the process of the model calibration, where iterative simulations are performed to estimate optimal parameter values. This study evaluates a parameter transfer approach to address this issue and is demonstrated on ...
DOI:
10.1016/j.jhydrol.2020.124983

20. Diffuse groundwater recharge estimation confronting hydrological modelling uncertainty

Author:
Zhu, Ruirui; Croke, Barry F.W.; Jakeman, Anthony J.
Source:
Journal of hydrology 2020 v.584 pp. 124642
ISSN:
0022-1694
Subject:
watersheds,   etc   ; climate; groundwater; groundwater recharge; hydrologic models; uncertainty;     Show all 6 Subjects
Abstract:
... Diffuse recharge is vital in determining the availability of renewable groundwater. Estimating diffuse recharge, however, is a great challenge plagued with uncertainty due to limitations in direct observation and process understanding. Hydrological model is functional for diffuse recharge estimation at catchment scale. It can be used independently or in combination with flow recession analysis to ...
DOI:
10.1016/j.jhydrol.2020.124642