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... Rainfall-induced surge waves in rivers are still today considered as an elusive and non-realistic phenomenon that has continued to mystify researchers and practitioners alike since the kinematic shock theory introduced in 1955. This is mainly due to scarce sightings of real cases, as well as physical and numerical uncertainties and sporadic calculations. In order to overcome such indefiniteness, a ...
watersheds, etc ; climate; drought; hydrology; periodicity; Show all 5 Subjects
Abstract:
... The Huaihe River Basin is located in China’s north-south climate transition belt, where massive droughts occurred in history. To comprehensively capture how climate extremes have behaved in the past, this paper analyzed the trend, change point, and periodicity of drought at multiple spatial-temporal scales based on the Standardized Precipitation Indexes (SPI). And the historical simulation experim ...
watersheds, etc ; Apodemus; frequency distribution; karyotyping; Show all 4 Subjects
Abstract:
... New data on the karyological variability of Apodemus peninsulae mice (Thomas, 1906) in the Tyva Republic are presented. By the ratio of macro and micro B chromosomes in the mice we studied earlier in this region and in the present study, it became possible to isolate several geographical populations that combine a number of studied catch points of East Asian mice within the territory of the Yenise ...
... Mekong River Basin. The Coupled Model Intercomparison Project Phase 6 (CMIP6) recently announced an updated version of general circulation models (GCMs). This study investigated the performance of improved CMIP6 over those of CMIP5 with respect to precipitation and flood representations in the Mekong River Basin (MRB). The correlation and error comparison from the referenced precipitation exhibite ...
... This study investigates the potential differences between spatial and temporal transferability of the Hydrologiska Byråns Vattenbalansavdelning (HBV) rainfall-runoff model parameters in 576 Iranian catchments. Our goal is to determine how parameter transferability is affected by (a) parameter transfer modes (temporal or spatial) and (b) different climate conditions. In the temporal mode, we make d ...
watersheds, etc ; research; risk assessment; variance; China; Show all 5 Subjects
Abstract:
... The Lowest navigable water level (LNWL) is an important indicator used for navigation design to balance the relationship between navigation safety and economic benefits of a waterway. However, it is a challenge of accurately estimating LNWLs due to the nonstationary characteristics of observed water level data series. In this study, a comprehensive framework was developed for handling this issue. ...
watersheds, etc ; Bacillariophyceae; basins; biotopes; rivers; Mongolia; Show all 6 Subjects
Abstract:
... This investigation aimed to assess the diatom diversity, richness, and occurrence for each biotope temporal and spatial variability along the Khara River basin, Mongolia. We collected diatom samples in 19 sites across the Khara River basin every three years for the May and August months. Three hundred thirty-six species of diatoms were recorded in this basin, and 24.4 percent or common species of ...
watersheds, etc ; basins; evapotranspiration; research; seasonal variation; Show all 5 Subjects
Abstract:
... Eta Regional Model of CPTEC-INPE is used to obtain intraseasonal (30-day) 8-member ensemble forecasts over the Madeira River basin for the period 2002–2012. The initial and boundary conditions are taken from Atmospheric General Circulation Global Model in six members and from Global Coupled Ocean-Atmosphere Model in two members. The intraseasonal forecasts produced by dynamic downscaling with Eta ...
watersheds, etc ; climate; hydrology; rain; research; England; Show all 6 Subjects
Abstract:
... This paper presents the spatial variation of the annual maximum daily rainfall (AMDR) in more than 900 catchments of England and Wales over the last century with respect to different spatial features including geographic location, elevation, size, orientation and shape of catchments. A spatial pattern extraction and recognition (SPER) toolbox is employed to extract the spatial features of catchmen ...
watersheds, etc ; cluster analysis; pollution; research; runoff; Show all 5 Subjects
Abstract:
... The time of concentration (Tc) is the main hydrological parameter used to characterize the response of a given Hydrological Response Unit (HRU) to a precipitation event. Because of its importance, the determining Tc is an integral step in several studies involving runoff. Thus, this work presents an unprecedented review of the application of Tc in different lines of research involving water resour ...
watersheds, etc ; catenas; mass movement; models; sediments; China; Show all 6 Subjects
Abstract:
... The ²¹⁰Pbₑₓ accumulation-decay model is widely applied for sediment dating while not applicable for dating sediments derived from debris flows because the sources of excess lead-210 (²¹⁰Pbₑₓ) are diverse and changeable. In this study, we developed a new model (n=-1λln1-C(n)Cr) for dating recent silting soils of debris flow deposits using changes in ²¹⁰Pbₑₓ concentration in surface soil layers, whe ...
Daniel Restrepo‐Santamaria; Juliana Herrera‐Pérez; Juan Guillermo Ospina‐Pabón; Silvia López‐Casas; Juan Pablo Londoño‐Velásquez; Daniel Valencia‐Rodriguez; Luz Jiménez‐Segura
watersheds, etc ; fish; gillnets; ichthyology; Andes region; Colombia; Show all 6 Subjects
Abstract:
... This analysis gives information about length–weight relationships (LWR) for 31 fish species from different aquatic environments in the Magdalena‐Cauca River basin. Some of these species are endemic of the region and important as fishing resources. Fish were caught between 2005 and 2016, employed different fishing gears depending on the aquatic environments (portable electrofishing equipment, cast ...
David C. Goodrich; David Bosch; Ray Bryant; Mike H. Cosh; Dinku Endale; Tamie Veith; Peter Kleinman; Eddy Langendoen; Greg McCarty; Fred Pierson; Harry Schomberg; Douglas Smith; Patrick Starks; Timothy Strickland; Teferi Tsegaye; Tala Awada; Hilary Swain; Justin Derner; Brandon Bestelmeyer; Marty Schmer; John Baker; Bryan Carlson; David Huggins; David Archer; Gerardo Armendariz
watersheds, etc ; agricultural productivity; agricultural research; agroecosystems; hydrology; Show all 5 Subjects
Abstract:
... The vision of the Long Term Agroecosystem Research (LTAR) network is to enable multi‐decadal, trans‐disciplinary, and cross‐location science to ensure the long‐term sustainability of U.S. agriculture. LTAR's primary goals are to: (1) Intensify agricultural productivity, (2) Improve ecosystem services related to agricultural production, and (3) Improve rural prosperity. The LTAR network includes 18 ...
watersheds, etc ; channelization; climate change; geophysics; research; sediments; Show all 6 Subjects
Abstract:
... Alluvial fans form through primary and secondary geomorphic processes. Primary processes comprise major geomorphic events that build the fan by transporting sediment from the watershed to the fan; these events occur at decadal time scales. Secondary processes include the smaller flood events which recruit little sediment from the watershed but can re‐mobilize and rework sediment already delivered ...
watersheds, etc ; biodiversity; environment; freshwater; Arkansas River; Australia; Show all 6 Subjects
Abstract:
... Headwater streams are critical for freshwater ecosystems. Global and continental studies consistently show major dams as dominant sources of hydrological stress threatening biodiversity in the world’s major rivers, but cumulative impacts from small artificial impoundments (SAIs) concentrated in headwater streams have rarely been acknowledged. Using the Murray Darling River basin (Australia) and th ...
watersheds, etc ; environment; manufacturing; perfluorocarbons; wastewater; wastewater treatment; Show all 6 Subjects
Abstract:
... Per- and poly-fluoroalkyl substances (PFAS) are a problematic group of chemicals used in various industrial and household products. They have been extensively detected in wastewater as a result of day-to-day product usage. Due to concerns about their safety, voluntary and regulatory action to limit the manufacture and use of some individual PFAS has occurred since the year 2000. The impact that th ...
watersheds, etc ; energy; hydroelectric power; hydrograph; hydrologic data; Greece; Show all 6 Subjects
Abstract:
... The limited availability of hydrometric data makes the design, management, and real-time operation of water systems a difficult task. Here, we propose a generic stochastic framework for the so-called inverse problem of hydroelectricity, using energy production data from small hydropower plants (SHPPs) to retrieve the upstream inflows. In this context, we investigate the alternative configurations ...
watersheds, etc ; climate; coasts; geophysics; gravity; hydrology; research; Greenland; Show all 8 Subjects
Abstract:
... The estimation of mass anomalies using Gravity Recovery and Climate Experiment (GRACE) data involves parameterizing the temporal gravity field using basis functions. In this study, we show that the use of irregularly shaped mass concentration (mascon) tiles that follow land/ocean boundaries reduces the leakage of land signals into ocean regions and vice versa. Leakage of signal from continents to ...
watersheds, etc ; basins; risk; runoff; simulation models; temperature; China; Show all 7 Subjects
Abstract:
... Hydrological droughts are natural hazards with devastating impacts on different sectors, which may cause even more adverse impacts if concurring with high temperature extremes. Though many studies have evaluated changes in individual hydrological droughts and high temperature extremes, the impact of climate change on their concurrences (or compound extremes) is still lacking. In this study, we inv ...
watersheds, etc ; bedrock; geophysics; research; sandstone; shale; tomography; Pennsylvania; Show all 8 Subjects
Abstract:
... Seismic imaging provides key information for revealing structures within Earth's critical zone (CZ) and quantifying subsurface fluid properties. The P‐wave velocity (Vp) models estimated by seismic refraction tomography or acoustic full waveform inversion (FWI) are useful to delineate the thicknesses of weathered bedrock but ambiguously map fluid properties in CZ. Considering the complementary sen ...