Results 21 to 30 of about 2,492,137 (249)

Paleogeographic numerical modeling of marginal seas for the Holocene – an exemplary study of the Baltic Sea [PDF]

open access: yesEarth System Dynamics
The sustainable management of marginal seas is based on a thorough understanding of their evolutionary trends in the past. The paleogeographic evolution of marginal seas is controlled not only by global and regional driving forces (eustatic sea-level ...
J. Miluch   +6 more
doaj   +1 more source

Low water temperature sediment transport effects of the hyperconcentrated river: a case study of Bayangaole station in the upper Yellow River

open access: yesShui kexue jinzhan, 2020
The Yellow River is the river with the highest sediment concentration in the world. The sediment transport of the desert-wide valley reaches in the upper Yellow River are affected by inflow, sediment and changes in topographic conditions. To research the
Tao BAI, Pengfei MU, Ming ZHANG
doaj   +1 more source

Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes [PDF]

open access: yes, 2010
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land.
Quinton, John, Deasy, C.
core   +6 more sources

Grain-size characteristics and net transport patterns of surficial sediments in the Zhejiang nearshore area, East China Sea

open access: yesOceanologia, 2020
Summary: Spatial variations in grain-size parameters can reflect sediment transport patterns and depositional dynamic environments. Therefore, 616 surficial sediment samples taken from the Zhejiang nearshore area in the East China Sea were analyzed to ...
Juan Liang, Jian Liu, Gang Xu, Bin Chen
doaj   +1 more source

Review of a Semi-Empirical Modelling Approach for Cohesive Sediment Transport in River Systems

open access: yes, 2022
In this paper, a review of a semi-empirical modelling approach for cohesive sediment transport in river systems is presented. The mathematical modelling of cohesive sediment transport is a challenge because of the number of governing parameters ...
Bommanna Krishnappan
core   +1 more source

Comparing Active Learning for Satellite Imagery: Contrastive Learning, Diversity, Confidence Sampling, and Cold Start Strategies

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, we investigated and compared common active learning strategies for classification and semantic segmentation tasks using satellite imagery.
David Pogorzelski   +2 more
doaj   +1 more source

Several understandings for sediment transport capacity by overland flow

open access: yesShui kexue jinzhan, 2018
Sediment transport capacity of overland flow, which is the maximum equilibrium sediment load that a flow can transport, is a key concept for developing process-based soil erosion models because it plays a pivotal role to determine soil detachment rate ...
ZHANG Guanghui
doaj   +1 more source

Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes

open access: yes, 2021
Sediment transport in pipes is an effective engineering measure used to reallocate water–sediment resources and is widely used in reservoir flooding and sediment discharging, river dredging, floodplain area deposition, as well as other projects.
Jinliang Zhang   +3 more
core   +1 more source

Research on the engineering practice and safety control of open-gate operation in locks

open access: yesShuili Shuiyun Gongcheng Xuebao
The open-gate operation (a mode in which the lock gate is opened to allow vessels to pass quickly and freely when the water level difference across the lock is minimal) can significantly enhance the navigation efficiency of locks.
QI Chunfeng   +4 more
doaj   +1 more source

Estimating typical sediment concentration probability density functions for European rivers [PDF]

open access: yes, 2005
Sediment in rivers is linked with qualitative and quantitative water problems throughout Europe. Sediment supply and transfer are part of a natural process of minimising gradients in the landscape.
Becvar, Martin
core   +6 more sources

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