Results 121 to 130 of about 86,383 (345)
Long‐Term Effects of Low‐Drop Grade Control Structures on Channel Evolution in the Yazoo River Basin
River Research and Applications, EarlyView.ABSTRACT Channel incision is a widespread problem, especially in river basins that have an extensive history of channel alterations. Because channel incision causes large ecological and economic consequences, the prevention of continued migration of headcuts, defined as a steep change in stream gradient over a short reach, has been the focus of many ...
Nicky M. Faucheux +2 more
wiley +1 more source
Bias in Peak Flood Discharges: Are Our Bridges and Culverts Undersized?
River Research and Applications, EarlyView.ABSTRACT Reliable methods for peak discharge predictions at ungaged locations are required for infrastructure design and floodplain management. For decades, a standard practice in the United States has been to utilize US Geological Survey regional regression equations (StreamStats) as a singular method. However, implementation of multiple methods, such
Steven E. Yochum, Tyler Wible
wiley +1 more source
Acta Scientiarum: Biological Sciences, 2008 O lago dos Tigres é um lago do tipo vale bloqueado, sendo que não foiregistrado estudo evidenciando a distribuição vertical fitoplanctônica para esse tipo de lago; dessa forma, esta pesquisa assume um caráter pioneiro.
João Carlos Nabout +1 more
doaj
LIMN-D-19-00006 Limnology (2020) 21: 25-34 Naganawa et al. 和文摘要誤掲載問題についてのお詫び
, 2020 openalex +2 more sources
River Research and Applications, EarlyView.ABSTRACT Accurately predicting open‐channel flow under complex conditions remains a challenge. This study introduces a novel synergetic self‐adaptive data assimilation (DA) framework, using a proportional‐integral‐derivative (PID) controller to dynamically calibrate the bed roughness parameter ks in a shallow‐water equation model (via the momentum ...
M. Almetwally Ahmed, S. Samuel Li
wiley +1 more source
River Research and Applications, EarlyView.ABSTRACT Digital networks are virtual representations of freshwater systems that provide important inputs to, and mapping of, river classifications, simulation models, and quantitative data analyses for policy, planning, and management. Strahler order has often been used to characterize network configuration and as a proxy indicator of river channel ...
Doug Booker +3 more
wiley +1 more source
Earth resources-regional transfer activity contracts review [PDF]
A regional transfer activity contracts review held by the Earth Resources Office was summarized. Contracts in the earth resources field primarily directed toward applications of satellite data and technology in solution of state and regional problems ...
Bensko, J., Jr. +5 more
core +1 more source
Nutrient chemistry of a large, deep lake in subarctic Alaska [PDF]
, 1977 Project Officer Eldor W. Schallock Assessment and Criteria Development Division Corvallis Environmental Research Laboratory Corvallis, Oregon 97330;Corvallis Environmental Research Laboratory Office of Research and Development U. S.
Casper, L. A. +2 more
core +1 more source
Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR
River Research and Applications, EarlyView.ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert +5 more
wiley +1 more source