Results 41 to 50 of about 597 (201)

Research on Short-term Multi-objective Optimization Scheduling oriented Peak Regulation of Power Network

open access: yesMATEC Web of Conferences, 2018
With the succession of river basins and inter-basin hydropower stations, the joint optimal operation of cascade hydropower stations in the river basin has large-scale, nonlinear, strong coupling, and multi-target characteristics, and must consider the ...
Li Mo   +3 more
doaj   +1 more source

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1704-1734, August 2026.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

Production Planning of Cascaded Hydropower Stations using Approximate Dynamic Programming

open access: yesIFAC-PapersOnLine, 2023
We formulate the day-ahead bidding problem for a hydropower producer having several hydropower plants residing in a river basin. We present a novel approach inspired by Dynamic programming with approximations in value and policy space by neural networks.
Marcial, Alexander, Perninge, Magnus
openaire   +2 more sources

Airborne Observations Reveal Underestimated Riverine Methane Emissions Across the Amazon

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Strongly increasing trends in global methane in recent decades highlight the importance of understanding source‐sink attributions and climate feedback mechanisms, especially for large natural sources like wetlands. Here, we present an analysis of airborne methane observations above the Amazon Basin conducted from December 2022 through January ...
Linda Ort   +11 more
wiley   +1 more source

Research on Real-time Intelligent Load Control Technology among Giant Hydropower Station Group under High-intensity Peak-load and Frequency Regulation Demand

open access: yesMATEC Web of Conferences, 2018
The paper conducts an in-depth study on the real-time dispatching involved in joint operation among giant cascade hydropower stations with high-intensity peak-load and frequency regulation demand, and proposes anintelligent load control technology for ...
Luo Wei, Zhong Qingxiang, Gu Faying
doaj   +1 more source

Preliminary Exploration of Establishing a Spot Quotation Alliance for Cascade Hydropower Stations

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract For the spot electricity market, the quotation combining the hydropower stations is more resistant to uncertainties of runoff and spot price in market bidding. Therefore, it is of great significance to set up a spot quotation system for these hydropower stations.
Yi Sun   +5 more
openaire   +1 more source

Modelling bedload transport at the network scale in a glacier‐fed Alpine river system

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 7, July 2026.
We adapted the network‐scale sediment transport and connectivity model D‐CASCADE for Alpine environments and applied it to the Sulden/Solda catchment (Italy). For the first time, we validate the model with continuous bedload measurements at the catchment outlet and evaluate the plausibility of bedload dynamics along the river network with field ...
Felix Pitscheider   +7 more
wiley   +1 more source

A Short-Term Optimal Scheduling Model for Wind-Solar-Hydro Hybrid Generation System With Cascade Hydropower Considering Regulation Reserve and Spinning Reserve Requirements

open access: yesIEEE Access, 2021
In order to meet the challenges brought by the high penetration of intermittent and fluctuating wind and solar power, a short-term optimal scheduling model for wind-solar-hydro hybrid generation system with cascade hydropower is established with the ...
Jun Xie   +5 more
doaj   +1 more source

Characterisation of Drought and Wet Events in the Paraíba do Sul River Basin—Brazil

open access: yesInternational Journal of Climatology, Volume 46, Issue 9, July 2026.
Trend analysis identified statistically significant reductions in precipitation (at the 5% significance level) at specific pluviometric stations in São Paulo and Rio de Janeiro, while other areas, mainly in Minas Gerais, experienced significant increases in annual and seasonal rainfall, particularly during summer and spring. These significant trends at
Gildo Rafael de Almeida Santana   +4 more
wiley   +1 more source

On ecological operation of cascade hydropower stations along Wujiang River in Guizhou province

open access: yesShui kexue jinzhan, 2016
In order to protect aquatic system health of Wujiang River and achieve the win-win goal of the water energy resources development and ecological environment, the ecological operation of cascade hydropower stations along Wujiang River in Guizhou provience
LYU Wei   +3 more
doaj   +1 more source

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