An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Mitchell L. Kay; Izabela Jasiak; Wynona H. Klemt; Johan A. Wiklund; Jelle A. Faber; Lauren A. MacDonald; James V.K. Telford; Cory A.M. Savage; Colin A. Cooke; Brent B. Wolfe; Roland I. Hall
floodplains, etc ; antimony; arsenic; bitumen; gold; highlands; lakes; nickel; oils; pollution; research; river deltas; sediments; temporal variation; vanadium; Alberta; Show all 16 Subjects
Abstract:
... Abundant reserves of metals and oil have spurred large-scale mining developments across northwestern Canada during the past 80 years. Historically, the associated emissions footprint of hazardous metal(loid)s has been difficult to identify, in part, because monitoring records are too short and sparse to have characterized their natural concentrations before mining began. Stratigraphic analysis of ...
... There are few studies that have developed estimations of the vulnerability of the population to isolation as a result of flood events. The main objective of this study was to provide a methodological proposal that addresses this matter through a series of cartographic instruments. To this purpose, the method was tested in a study area classified as area with significant potential flood risk (ARPSI ...
... The present work tried to develop multiparametric statistical and machine learning models of wetland water richness at two phases in the pre-dam period and at one phase in the post-dam period. Eight models four each in statistical and machine learning approaches including six relevant parameters have been developed. The performance of the EBF among statistical models and REPtree among machine lear ...
floodplains, etc ; models; prediction; statistical analysis; Show all 4 Subjects
Abstract:
... A model for stage–discharge relationship in two-stage wide meandering channels, devised by statistical analysis of new experimental boundary shear data and some published shear data, is presented. By evaluating the measured boundary shear percentage on floodplains of unequal length on either side along with corresponding wetted area percentage for sinuous channels, it is seen that different but pa ...
floodplains, etc ; Landsat; fluid mechanics; rivers; India; Show all 5 Subjects
Abstract:
... The dynamics associated with the morphological changes of the Ganga River being the largest river in India is yet to be understood. Population living near the floodplain gets crucially affected by migrating channels. Spatiotemporal relocation of Ganga River from Buxar to Azamabad over a period of 45 years (1975–2020) was measured using Landsat images. Study area was divided into 7 reaches (A, B, C ...
floodplains, etc ; fluid mechanics; hydrology; shear stress; Show all 4 Subjects
Abstract:
... In this research, the main flow behaviors in the meandering compound channels with different densities of two side blocks on the floodplains were investigated by using laboratory experiments at the three relative depths of 0.29, 0.39 and 0.49 and the corresponding discharges. The results show that the blocks density on the floodplain has a significant effect on the flow behavior in the main channe ...
floodplains, etc ; avifauna; basins; birds; drought; ecology; surveys; Show all 7 Subjects
Abstract:
... Globally, high‐amplitude variation in weather (e.g. precipitation) is increasing in frequency and magnitude. This appears to be so for the southern Murray‐Darling Basin, Australia, where droughts of unprecedented (in the instrumental record, extending back to the mid‐1800s) depth and duration (1997–first half of 2010; second half of 2012–) are being punctuated by extreme wet periods, albeit of sho ...
floodplains, etc ; flood damage; rain; spectroscopy; water; China; Show all 6 Subjects
Abstract:
... To address the problems of traditional hydrological and hydraulic methods of estimating disasters in urban flood areas, such as small scale, poor timeliness, and difficulty of obtaining data, an inversion method of estimating urban flood disaster area based on remote sensing spectroscopy is proposed. In this paper, the spatial distribution of urban flood disasters is first inverted based on large- ...
floodplains, etc ; biomass; chlorophyll; macrophytes; phytoplankton; rivers; Poland; Show all 7 Subjects
Abstract:
... In the years 2007–2015, phytoplankton of six floodplain lakes of the Lower Vistula were studied. During this period, river levels were recorded ranging from normal to both extremely high and extremely low. The research attempted to answer two questions: (i) Do the distributions of phytoplankton communities differ between different types of floodplain lakes? (ii) How are the phytoplankton in floodp ...
floodplains, etc ; macroinvertebrates; rivers; Savannah River; Southeastern United States; Show all 5 Subjects
Abstract:
... We investigated the relative importance of connectivity to the main river channel and the influence of flooding on macroinvertebrate distributions in oxbow lakes of a southeastern USA river floodplain. Invertebrate assemblages were described in four oxbow lakes located on the Savannah River; two with continuous connection to the main stem river (i.e., high connectivity) and two that were only conn ...
João Vitor Fonseca da Silva; Fernando Miranda Lansac-Tôha; Bianca Trevizan Segovia; Felipe Emiliano Amadeo; Louizi de Souza Magalhães Braghin; Luiz Felipe Machado Velho; Hugo Sarmento; Claudia Costa Bonecker
floodplains, etc ; fish; freshwater; lakes; microplastics; protists; rivers; zooplankton; Brazil; Show all 9 Subjects
Abstract:
... The increasing amount of plastic particles introduced into continental aquatic environments has drawn the attention of researchers around the globe. These particles can be assimilated by a wide range of aquatic organisms, from microorganisms to fish, causing detrimental effects on trophic webs. Using an experimental approach, we investigated the effect of microplastic particles of different sizes ...
floodplains, etc ; issues and policy; railroads; risk; rivers; watersheds; India; Show all 7 Subjects
Abstract:
... Floodplain corridors contain ∼21% of the total land area of West Bengal and hold alignment of ∼44% road and ∼26% railway networks of the state. Therefore, understanding of potential interactions between transport infrastructure and river systems is essential for river basin management in general and understanding the longitudinal and lateral (dis)connectivity across the twenty catchments of WB in ...
floodplains, etc ; environment; humans; hydrometeorology; remote sensing; riparian areas; rivers; Show all 7 Subjects
Abstract:
... The lateral dimension of an alluvial river – floodplains – provides a plethora of goods and services for human needs. Also, it supports the richest and diverse riverine ecosystems on Earth. But over-utilization of floodplain resources had impacted functions of river system adversely. So, the present study attempts to formulate a hydro-bio-geomorphological framework to assess the lateral dimension ...
Helen Ballasus; Hans von Suchodoletz; Birgit Schneider; Hermann Grün; Anna Heller; Marie-Sophie Kind; Bennet Wroblewski; Stefan Wurlitzer; Christoph Zielhofer
floodplains, etc ; X-radiation; data collection; fluorescence; provenance; watersheds; Germany; Show all 7 Subjects
Abstract:
... This manuscript documents geological master data and X-ray fluorescence (XRF) data of a standardized 8*8 km sampling grid of the entire Weiße Elster catchment in Central Germany. Further, the manuscript documents XRF data of a refined 4*4 km sampling grid in the proximity of Salsitz floodplain transect as well as grain size data and XRF data of Salsitz SC40 core that was recovered from the Weiße E ...
floodplains, etc ; biodiversity; biomass; deciduous forests; drought tolerance; ecosystems; landscapes; Show all 7 Subjects
Abstract:
... Semi-natural grasslands (SNG) are valuable for their high biodiversity, cultural and landscape values. Quantitative information about medicinal plants (MP) in SNG facilitates the evaluation of ecosystem services of these habitats. Different literature sources were used to assess the ratio and frequency of MP species in several Estonian SNG and to evaluate the impact of management on these values. ...
Atsler Luana Lehun; Lidiany Doreto Cavalcanti; Maria de los Angeles Perez Lizama; João Otávio Santos Silva; Guilherme Pomaro Casali; Ricardo Massato Takemoto
floodplains, etc ; Acanthocephala; Prochilodus lineatus; endoparasites; fish; rivers; species richness; Show all 7 Subjects
Abstract:
... The construction of dams causes several impacts on aquatic environments, altering the flow of rivers, environmental variables, and all biota present, including parasites. Little is known about how the parasitic community can be influenced in the long term by environmental changes. In this study, it was expected that the impacts caused by environmental disturbances will be directly reflected by the ...
floodplains, etc ; drainage; hydrodynamics; methodology; models; rain; rain intensity; topography; Show all 8 Subjects
Abstract:
... The extent of coastal flooding is influenced by many factors such as the topography of the low-lying land, tidal level, rainfall pattern, inflow discharge collected from the upstream drainage area, etc. This study establishes a new methodology of effectively predicting the flooding process in coastal areas, and which is achieved by combining the recurrent neural network (RNN) model with the detail ...
floodplains, etc ; Pterygoplichthys; basins; fish; humans; ichthyology; occupations; rivers; watersheds; Show all 9 Subjects
Abstract:
... Invasions of non‐native fish species are generally associated with human activities that violate historically insurmountable barriers to species on local and global scales. For Pterygoplichthys ambrosettii (Holmberg 1893), invasive to the upper Paraná River basin, informations about introduction and period of occupation are uncertain. Thus, aim of this study was to establish the invasion chronolog ...
floodplains, etc ; Buprestidae; Palearctic region; fauna; forests; national parks; Belarus; Show all 7 Subjects
Abstract:
... Two species of jewel beetles (Coleoptera: Buprestidae), Eurythyrea quercus (Herbst, 1780) and E. aurata (Pallas, 1776), are recorded for the Republic of Belarus. During 2020, specimens were collected on the oak trunks in floodplain forest in Pripyatskiy National Park (Gomel Region). According to the Catalogue of Palaearctic Coleoptera, ranges of two species of the genus Eurythyrea Dejean, 1833 (E. ...
floodplains, etc ; colonizing ability; drought; introduced species; river regulation; rivers; Show all 6 Subjects
Abstract:
... The flood pulse is the main driving force influencing river floodplain ecosystems. The dominant role of the flood pulse on the success of non-native species (NNSs) is what differentiates floodplains from other ecosystems, in terms of invasion. In this review, I discuss some patterns related to the performance of NNSs in response to the flood pulse. First, floods connect floodplain habitats and spr ...