High-Resolution Measurements of Water Discharge, Sediment, and Solute Transport in the River Zackenbergelven, Northeast Greenland

AbstractThe annual mass budget of the Greenland ice sheet (1992) and the fresh-water flux from Greenland including the coasts is determined using high-resolution regional climate model (REMO) simulations. The climate model is modified to include processes such as lateral flow over Greenland using a newly developed routing scheme, the effect of sub-grid-scale surface heterogeneity (orography) on surface temperature and runoff and an improved snow and ice model for the Greenland ice sheet for surface processes on the ice sheet. The high-resolution (0.125˚ grid size) simulations of accumulation and runoff fields are also assessed compared to the lower-resolution (0.5˚ grid size) simulations.

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High resolution x-ray imaging of dynamic solute transport in cyclically deformed porous tissue scaffolds

10.1117/12.772057 ◽

2008 ◽

Cited By ~ 2

Author(s):

Jorn Op Den Buijs ◽

Kee-Won Lee ◽

Steven M. Jorgensen ◽

Shanfeng Wang ◽

Michael J. Yaszemski ◽

...

Keyword(s):

High Resolution ◽

Solute Transport ◽

Tissue Scaffolds ◽

X Ray ◽

X Ray Imaging

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Discussion of different Remote sensing satellite possibilities for scientifical Earth observations

E3S Web of Conferences ◽

10.1051/e3sconf/202126404007 ◽

2021 ◽

Vol 264 ◽

pp. 04007

Author(s):

Aybek Arifjanov ◽

Shamshodbek Akmalov ◽

Shakhzod Shodiev ◽

Abdukarim Haitov

Keyword(s):

High Resolution ◽

Satellite Images ◽

Water Discharge ◽

Satellite Image ◽

Research Area ◽

Daily Monitoring ◽

Medium Resolution ◽

Very High Spatial Resolution ◽

High Resolution Images ◽

Very High

More than 1,000 satellites are launched into space, and they differ in their functions, rotation orbits, resolution, and other properties. Scientists divide the satellites into low-resolution, medium-resolution, high-resolution, and very high-resolution satellites by their properties. Now, the biggest challenge facing scientists is to use some of these different resolution images in their field. To get the expected result, it is very important to analyze the image that needs an which gives more accurate results. Therefore, the main attention of this article is aimed to find the answer to these problems. In this article 3 satellite images which have different resolution are analyzed. The possibility of middle-resolution images of MODIS, high-resolution images of Landsat, and very high-resolution images of WorldView-2 (WV-2) satellites using GIS are analyzed. A research area was the Syrdarya region, and downloaded different images of satellites of this area and compared with using e Cognition. According to the results, a more accurate satellite image for irrigation sets information is WorldView-2 images. In comparison analysis, it shows more accurate properties than other satellite images. As irrigation sets are small objects for the analysis, very high spatial resolution satellite images are important. Water discharge and surface change happen very fast; thus, it requires daily monitoring of the condition. And in this case, the temporal resolution of the MODIS and Landsat is 16 day, and it is a too long period.

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DEFORMATION IN THE DAMAGE ZONE OF THE HURRICANE FAULT AND THE CONTROL OF THERMAL WATER DISCHARGE INTO THE VIRGIN RIVER, UTAH, AS REVEALED BY HIGH-RESOLUTION SEISMIC SURVEYS

10.1130/abs/2018rm-313772 ◽

2018 ◽

Author(s):

Stephen T. Nelson ◽

◽

Benjamin S. Godwin ◽

John H. McBride ◽

Kevin A. Rey ◽

...

Keyword(s):

High Resolution ◽

Thermal Water ◽

Water Discharge ◽

Damage Zone ◽

Seismic Surveys ◽

Virgin River

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Combined Use of High-Resolution Numerical Schemes to Reduce Numerical Diffusion in Coupled Nonhydrostatic Hydrodynamic and Solute Transport Model

Water ◽

10.3390/w11112288 ◽

2019 ◽

Vol 11 (11) ◽

pp. 2288

Author(s):

Augusto Cunha ◽

Carlos Fragoso ◽

Matheus Tavares ◽

J. Cavalcanti ◽

Marie-Paule Bonnet ◽

...

Keyword(s):

High Resolution ◽

Solute Transport ◽

Numerical Solution ◽

Transport Model ◽

Major Influence ◽

Promising Alternative ◽

Numerical Diffusion ◽

Hydrodynamic Approach ◽

Combined Use ◽

Hydrodynamic Solution

In three-dimensional simulations of free-surface flow where the vertical velocities are relevant, such as in lakes, estuaries, reservoirs, and coastal zones, a nonhydrostatic hydrodynamic approach may be necessary. Although the nonhydrostatic hydrodynamic approach improves the physical representation of pressure, acceleration and velocity fields, it is not free of numerical diffusion. This numerical issue stems from the numerical solution employed in the advection and diffusion terms of the Reynolds-averaged Navier–Stokes (RANS) and solute transport equations. The combined use of high-resolution schemes in coupled nonhydrostatic hydrodynamic and solute transport models is a promising alternative to minimize these numerical issues and determine the relationship between numerical diffusion in the two solutions. We evaluated the numerical diffusion in three numerical experiments, for different purposes: The first two experiments evaluated the potential for reducing numerical diffusion in a nonhydrostatic hydrodynamic solution, by applying a quadratic interpolator over a Bilinear, applied in the Eulerian–Lagrangian method (ELM) step-ii interpolation, and the capability of representing the propagation of complex waves. The third experiment evaluated the effect on numerical diffusion of using flux-limiter schemes over a first-order Upwind in solute transport solution, combined with the interpolation methods applied in a coupled hydrodynamic and solute transport model. The high-resolution methods were able to substantially reduce the numerical diffusion in a solute transport problem. This exercise showed that the numerical diffusion of a nonhydrostatic hydrodynamic solution has a major influence on the ability of the model to simulate stratified internal waves, indicating that high-resolution methods must be implemented in the numerical solution to properly simulate real situations.

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