DSD-INT2016 Mathematical modeling of the influence of a navigable sea channel in the Northern part of the Gulf of Ob on the hydrodynamic and thermohaline regime of the Ob estuary - Arkhipov
This document describes research on modeling the influence of a proposed navigable sea channel in the Gulf of Ob on the hydrodynamic and thermohaline regime of the Ob estuary. It discusses:
1) The selection of the Delft3D modeling system and model setup including grid resolution.
2) Collection and preparation of input meteorological, river discharge, and hydrological data from various sources to create databases.
3) Model verification against observational data from research expeditions from 1993, 2005, and 2010.
4) Predictive scenario modeling of intrusion of salinity into the Gulf of Ob under extreme low river discharge conditions both with and without the proposed navigable channel.
DSD-INT 2016 Keynote Lecture 2016: From global to local: the latest developme...Deltares
Keynote Lecture by Martin Verlaan, Delft University of Technology & Deltares, The Netherlands at the joint Delft3D User Days and the OpenDA User Day, during Delft Software Days 2016 on Tuesday, 1 November 2016, Delft.
DSD-INT 2016 Calibration and scenario generation of hydrodynamics and water -...Deltares
Presentation by Fernando Aguilar Gómez (Instituto de Fisica de Cantabria) at the Delft3D User Days, during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 Hydrodynamic modeling and resource-device suitability analysis o...Deltares
Presentation by Oliver Dan de Luna, University of the Philippines - Marine Science Institute, Philippines, at the Delft3D User Days during Delft Software Days 2016 on Tuesday, 1 November 2016, Delft.
DSD-INT 2016 Urban water modelling - MeijerDeltares
Presentation by Didrik Meijer, Deltares, The Netherlands, at the Delft3D - User Days (Day 1: Hydrodynamics), during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 Keynote Lecture 2016: From global to local: the latest developme...Deltares
Keynote Lecture by Martin Verlaan, Delft University of Technology & Deltares, The Netherlands at the joint Delft3D User Days and the OpenDA User Day, during Delft Software Days 2016 on Tuesday, 1 November 2016, Delft.
DSD-INT 2016 Calibration and scenario generation of hydrodynamics and water -...Deltares
Presentation by Fernando Aguilar Gómez (Instituto de Fisica de Cantabria) at the Delft3D User Days, during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 Hydrodynamic modeling and resource-device suitability analysis o...Deltares
Presentation by Oliver Dan de Luna, University of the Philippines - Marine Science Institute, Philippines, at the Delft3D User Days during Delft Software Days 2016 on Tuesday, 1 November 2016, Delft.
DSD-INT 2016 Urban water modelling - MeijerDeltares
Presentation by Didrik Meijer, Deltares, The Netherlands, at the Delft3D - User Days (Day 1: Hydrodynamics), during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 Mixing of a thermal plume in a highly stratified artificial urba...Deltares
Presentation by Adrian Csibran (Budapest University of Technology and Economics) at the Delft3D User Days, during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 A crowd-sourced spatial database can change the way we work - Va...Deltares
Presentation by Ben van Kester (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
DSD-INT 2016 OpenEarth components in Data Science, some examples - HendriksenDeltares
Presentation by Gerrit Hendriksen (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
DSD-INT 2016 Real-time flood extent maps based on social media - Van LoenenDeltares
Presentation by Arnejan van Loenen (Deltares), Dirk Eilander (Deltares), Patricia Trambauer (Deltares) and Jurjen Wagemaker (FloodTags.com) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
This years’ keynote speaker of the Delft3D Users Meeting is Prof. Rudy L Slingerland, Pennsylvania State University, USA.
For more than 37 years, Prof. Rudy L. Slingerland of the Pennsylvania State University, USA, has been active as a scientist, educator and academic leader. He has held numerous positions within the University including head of the Department of Geosciences. His research group currently studies the evolution of morphodynamic systems, including tectonically-driven landscapes, deltas, rivers and shallow marine shelves by coupling theory with observations in the field and subsurface. The group’s ultimate goal is to develop predictive theories for the behavior of these systems and the record of their deposits. He was also recognized with the 2012 G. K. Gilbert Award for Geomorphology from the American Geophysical Union (AGU), which honors a scientist who has made a significant contribution to the field of earth and planetary surface processes. In 2013, he was elected a Fellow of the AGU.
In his Keynote Lecture “Delta Dynamics using Delft3D” at the Delft3D Users Meeting on Tuesday, November 4, Prof. Rudy L. Slingerland will describe what he has learned about delta dynamics from Delft3D modeling studies. He will talk about the latest open source advances and will share his ideas for further improvements. This Keynote will be the start of an open discussion among engineers, geomorphologists, geologists and software developers to further collaborate in the development and research of morphodynamic systems worldwide.
DSD-INT 2016 LiDAR & lowland water management in Indonesia - VisserDeltares
Presentation by Martijn Visser (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
CALCULATION OF PARAMETERS OF HYDRODYNAMICALLY STABLE EARTH DUCTSSubmissionResearchpa
The article describes the calculation of the parameters of soil-channel channels with hydrodynamic stability. It provides formulas to calculate the width and depth of water in large channels with hydrodynamically strong earth channels using existing studies S.S. Eshev, M.I. Rakhmatov, & A.R. Rakhimov. (2020). CALCULATION OF PARAMETERS OF HYDRODYNAMICALLY STABLE EARTH DUCTS. International Journal on Orange Technologies, 2(10), 58-60. https://doi.org/10.31149/ijot.v2i2.686 Pdf Url: https://journals.researchparks.org/index.php/IJOT/article/view/686/647 Paper Url: https://journals.researchparks.org/index.php/IJOT/article/view/686
Seismic data Interpretation On Dhodak field PakistanJamal Ahmad
I (Jamal Ahmad) presented this on 21 Feb, 2009 to defend my M.Phil dissertation in Geophysics at QAU, Islamabad, Pakistan. For more information about this, you may contact me directly at jamal.qau@gmail.com.
DSD-INT 2016 Mixing of a thermal plume in a highly stratified artificial urba...Deltares
Presentation by Adrian Csibran (Budapest University of Technology and Economics) at the Delft3D User Days, during Delft Software Days 2016. Tuesday 1 November 2016, Delft.
DSD-INT 2016 A crowd-sourced spatial database can change the way we work - Va...Deltares
Presentation by Ben van Kester (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
DSD-INT 2016 OpenEarth components in Data Science, some examples - HendriksenDeltares
Presentation by Gerrit Hendriksen (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
DSD-INT 2016 Real-time flood extent maps based on social media - Van LoenenDeltares
Presentation by Arnejan van Loenen (Deltares), Dirk Eilander (Deltares), Patricia Trambauer (Deltares) and Jurjen Wagemaker (FloodTags.com) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
This years’ keynote speaker of the Delft3D Users Meeting is Prof. Rudy L Slingerland, Pennsylvania State University, USA.
For more than 37 years, Prof. Rudy L. Slingerland of the Pennsylvania State University, USA, has been active as a scientist, educator and academic leader. He has held numerous positions within the University including head of the Department of Geosciences. His research group currently studies the evolution of morphodynamic systems, including tectonically-driven landscapes, deltas, rivers and shallow marine shelves by coupling theory with observations in the field and subsurface. The group’s ultimate goal is to develop predictive theories for the behavior of these systems and the record of their deposits. He was also recognized with the 2012 G. K. Gilbert Award for Geomorphology from the American Geophysical Union (AGU), which honors a scientist who has made a significant contribution to the field of earth and planetary surface processes. In 2013, he was elected a Fellow of the AGU.
In his Keynote Lecture “Delta Dynamics using Delft3D” at the Delft3D Users Meeting on Tuesday, November 4, Prof. Rudy L. Slingerland will describe what he has learned about delta dynamics from Delft3D modeling studies. He will talk about the latest open source advances and will share his ideas for further improvements. This Keynote will be the start of an open discussion among engineers, geomorphologists, geologists and software developers to further collaborate in the development and research of morphodynamic systems worldwide.
DSD-INT 2016 LiDAR & lowland water management in Indonesia - VisserDeltares
Presentation by Martijn Visser (Deltares) at Earth Observation and Data Science Symposium, during Delft Software Days 2016. Monday 24 October 2016, Delft.
DSD-INT 2016 LiDAR & lowland water management in Indonesia - Visser
Similar to DSD-INT2016 Mathematical modeling of the influence of a navigable sea channel in the Northern part of the Gulf of Ob on the hydrodynamic and thermohaline regime of the Ob estuary - Arkhipov
CALCULATION OF PARAMETERS OF HYDRODYNAMICALLY STABLE EARTH DUCTSSubmissionResearchpa
The article describes the calculation of the parameters of soil-channel channels with hydrodynamic stability. It provides formulas to calculate the width and depth of water in large channels with hydrodynamically strong earth channels using existing studies S.S. Eshev, M.I. Rakhmatov, & A.R. Rakhimov. (2020). CALCULATION OF PARAMETERS OF HYDRODYNAMICALLY STABLE EARTH DUCTS. International Journal on Orange Technologies, 2(10), 58-60. https://doi.org/10.31149/ijot.v2i2.686 Pdf Url: https://journals.researchparks.org/index.php/IJOT/article/view/686/647 Paper Url: https://journals.researchparks.org/index.php/IJOT/article/view/686
Seismic data Interpretation On Dhodak field PakistanJamal Ahmad
I (Jamal Ahmad) presented this on 21 Feb, 2009 to defend my M.Phil dissertation in Geophysics at QAU, Islamabad, Pakistan. For more information about this, you may contact me directly at jamal.qau@gmail.com.
Modelling monthly rainfall time series using Markov ChainsAmro Elfeki
Modeling Monthly Rainfall Records in Arid Zones Using Markov Chains: Saudi Arabia Case Study, the 4th International Conference on Water Resources and Arid Environments, December, 2010, pp.141-146.
Numerical Investigation of Turbulent Flow over a Rotating Circular Cylinder u...IJERA Editor
Recent advancements in the field of computational fluid mechanics and the availability of high performance with regard to rotating software computing cylinders (RCs) have drawn attention to the field of flow accelerated corrosion. (FAC). Current studies aim to numerically predict turbulent flow characteristics around the rotating cylinder and the concomitant effects on the wall shear stresses and local mass fraction of inhibitors that are directly related to corrosion rate. This 3-D numerical investigation was carried out using the commercial CFX package from which the where SST turbulence model was selected to compute the unknown Reynolds stresses term in the incompressible and viscid form of the Navier-Stokes equation. The effect of three different cylinder rotation speeds and three brine temperatures on the wall shear stress and on brine mixing is reported. Results of the simulations revealed that both cylinder rotation speed and the temperature of the brine significantly affect wall shear stress and mixing of the inhibitor that in turn affects corrosion rate
Modeling Monthly Rainfall Records in Arid Zones Using Markov Chains: Saudi Ar...Amro Elfeki
Modeling Monthly Rainfall Records in Arid Zones Using Markov Chains: Saudi Arabia Case Study, the 4th International Conference on Water Resources and Arid Environments, December, 2010, pp.141-146.
Detection and location of small aftershocks using waveform cross correlationIvan Kitov
Aftershock sequences of earthquakes with magnitudes 5.0 and lower are difficult to detect and locate by sparse regional networks. Signals from aftershocks with magnitudes 2 to 3 are usually below detection thresholds of standard 3-C seismic stations at near regional distances. For seismic events close in space, the method waveform cross correlation (WCC) allows to reduce detection threshold by at least a unit of magnitude and to improve location precision to a few kilometres. Therefore, the WCC method is directly applicable to weak aftershock sequences. Here, we recover seismic activity after the earthquake near the town of Mariupol (Ukraine) occurred on August 7, 2016. The main shock was detected by many stations of the International monitoring system (IMS), including the closest primary IMS array stations AKASG (6.62 deg.) and BRTR (7.81), as well as 3-C station KBZ (5.00). The International data centre located this event (47.0013N, 37.5427E), estimated its origin time (08:15:4.1 UTC), magnitude (mb=4.5), and depth (6.8 km). This event was also detected by two array stations of the Institute for Dynamics of Geospheres (IDG) of the Russian Academy of Sciences (RAS): portable 3-C array RDON (3.28), which is the closest station, and MHVAR (7.96). Using signals from the main shock at five stations as waveform templates, we calculated continuous traces of cross correlation coefficient (CC) from the 7th to the 11th of August. We found that the best templates should include all regional phases, and thus, have the length from 80 s to 180 s. For detection, we used standard STA/LTA method with threshold depending on station. The accuracy of onset time estimation by the STA/LTA detector based on CC-traces is close to one sample, which varies from 0.05 s at BRTR to 0.005 s for RDON and MHVAR. Arrival times of all detected signals were reduced to origin times using the observed travel times from the main shock. Clusters of origin times are considered as event hypotheses in the phase association procedure. As a result, we found 12 aftershocks with magnitudes between 1.5 and 3.5. These small events were detected neither by the IDC nor by the near regional network of the Geophysical Survey of RAS, which has three closest 3-C stations at distances of 2.2 to 3.5 degrees from the studied earthquake. We also applied procedure of relative location and all aftershocks were found within a few km from the main shock.
Head Loss Estimation for Water Jets from Flip Bucketstheijes
Water jet issued from flip bucket at the end of the spillway of a dam can be a threat for the stability and safety of the dam body due to subsequent scour at the impingement point. However, a strong jet from the flip bucket interacts with the surrounding air and develops into an aerated turbulent jet while the jet impact and scouring effect is reduced significantly. Aeration of the jet, at the same time, cause head losses along the trajectory. An experimental study is conducted to measure the trajectory lengths and investigate the effect of water depth in the river on the dynamic pressures acted on the river bed. The trajectory lengths with and without air entrainment are calculated using empirical equations and compared with the measurements. Head losses due to air entrainment are determined using the difference of the trajectory lengths with and without aeration, based on the projectile motion theory. Numerical simulation of the flow over the spillway, along the flip bucket and the jet trajectory is made and the results are compared with the experimental data. It is observed that trajectory lengths obtained from experiments, numerical simulation and empirical formulas are comparable with negligible differences. This allows us to combine alternate approaches to determine the trajectory lengths with and without air entrainment and estimate the head losses accordingly.
International Refereed Journal of Engineering and Science (IRJES)irjes
The core of the vision IRJES is to disseminate new knowledge and technology for the benefit of all, ranging from academic research and professional communities to industry professionals in a range of topics in computer science and engineering. It also provides a place for high-caliber researchers, practitioners and PhD students to present ongoing research and development in these areas.
Analysis of Annual Rainfall Climate Variability in Saudi Arabia by Using Spec...Amro Elfeki
Analysis of Annual Rainfall Climate Variability in Saudi Arabia by Using Spectral Density Function. The 5th International Conference on Water Resources and Arid Environments, January 6-9, 2013.
Similar to DSD-INT2016 Mathematical modeling of the influence of a navigable sea channel in the Northern part of the Gulf of Ob on the hydrodynamic and thermohaline regime of the Ob estuary - Arkhipov (20)
DSD-INT 2023 Hydrology User Days - Intro - Day 3 - KroonDeltares
Presentation by Timo Kroon and Nadine Slootjes (Deltares, Netherlands) at the Hydrology Suite User Days (Day 3) - Groundwater modelling, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Thursday, 30 November 2023, Delft.
Presentation by Sabrina Couvin Rodriguez (Deltares, Netherlands) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
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Presentation by Daan Rooze (Deltares, Netherlands) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Approaches for assessing multi-hazard risk - WardDeltares
Presentation by Philip Ward (Deltares and IVM VU Amsterdam) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
Presentation by Andrew Warren (Deltares, Netherlands) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Global hydrological modelling to support worldwide water assessm...Deltares
Presentation by Marc Bierkens (Utrecht University and Deltares, Netherlands) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Modelling implications - IPCC Working Group II - From AR6 to AR7...Deltares
Presentation by Bart van den Hurk (WGII Co-Chair, IPCC AR7, Deltares) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Knowledge and tools for Climate Adaptation - JeukenDeltares
Presentation by Ad Jeuken (Deltares, Netherlands) at the Climate Adaptation Symposium 2023, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Coupling RIBASIM to a MODFLOW groundwater model - BootsmaDeltares
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DSD-INT 2023 Create your own MODFLOW 6 sub-variant - MullerDeltares
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DSD-INT 2023 Example of unstructured MODFLOW 6 modelling in California - RomeroDeltares
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DSD-INT 2023 Challenges and developments in groundwater modeling - BakkerDeltares
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DSD-INT 2023 Demo new features iMOD Suite - van EngelenDeltares
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DSD-INT 2023 iMOD and new developments - DavidsDeltares
Presentation by Tess Davids (Deltares, Netherlands) at the Hydrology Suite User Days (Day 3) - Groundwater modelling, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Thursday, 30 November 2023, Delft.
Presentation by Christian Langevin (U.S. Geological Survey (USGS), USA) at the Hydrology Suite User Days (Day 3) - Groundwater modelling, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Thursday, 30 November 2023, Delft.
DSD-INT 2023 Hydrology User Days - Presentations - Day 2Deltares
Presentation by several speakers at the Hydrology Suite User Days (Day 2) - wflow and HydroMT, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 29 November 2023, Delft.
DSD-INT 2023 Needs related to user interfaces - SnippenDeltares
Presentation by Edwin Snippen (Deltares, Netherlands) at the Hydrology Suite User Days (Day 1) - Hydrology Suite introduction and River Basin Management software (RIBASIM), during the Delft Software Days - Edition 2023 (DSD-INT 2023). Tuesday, 28 November 2023, Delft.
DSD-INT 2023 Coupling RIBASIM to a MODFLOW groundwater model - BootsmaDeltares
Presentation by Huite Bootsma (Deltares, Netherlands) at the Hydrology Suite User Days (Day 1) - Hydrology Suite introduction and River Basin Management software (RIBASIM), during the Delft Software Days - Edition 2023 (DSD-INT 2023). Tuesday, 28 November 2023, Delft.
DSD-INT 2023 Parameterization of a RIBASIM model and the network lumping appr...Deltares
Presentation by Harm Nomden (SWECO, Netherlands) at the Hydrology Suite User Days (Day 1) - Hydrology Suite introduction and River Basin Management software (RIBASIM), during the Delft Software Days - Edition 2023 (DSD-INT 2023). Tuesday, 28 November 2023, Delft.
SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
The European Union Agency for Law Enforcement Cooperation (Europol) has suffered an alleged data breach after a notorious threat actor claimed to have exfiltrated data from its systems. Infamous data leaker IntelBroker posted on the even more infamous BreachForums hacking forum, saying that Europol suffered a data breach this month.
The alleged breach affected Europol agencies CCSE, EC3, Europol Platform for Experts, Law Enforcement Forum, and SIRIUS. Infiltration of these entities can disrupt ongoing investigations and compromise sensitive intelligence shared among international law enforcement agencies.
However, this is neither the first nor the last activity of IntekBroker. We have compiled for you what happened in the last few days. To track such hacker activities on dark web sources like hacker forums, private Telegram channels, and other hidden platforms where cyber threats often originate, you can check SOCRadar’s Dark Web News.
Stay Informed on Threat Actors’ Activity on the Dark Web with SOCRadar!
top nidhi software solution freedownloadvrstrong314
This presentation emphasizes the importance of data security and legal compliance for Nidhi companies in India. It highlights how online Nidhi software solutions, like Vector Nidhi Software, offer advanced features tailored to these needs. Key aspects include encryption, access controls, and audit trails to ensure data security. The software complies with regulatory guidelines from the MCA and RBI and adheres to Nidhi Rules, 2014. With customizable, user-friendly interfaces and real-time features, these Nidhi software solutions enhance efficiency, support growth, and provide exceptional member services. The presentation concludes with contact information for further inquiries.
Innovating Inference - Remote Triggering of Large Language Models on HPC Clus...Globus
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AI Pilot Review: The World’s First Virtual Assistant Marketing SuiteGoogle
AI Pilot Review: The World’s First Virtual Assistant Marketing Suite
👉👉 Click Here To Get More Info 👇👇
https://sumonreview.com/ai-pilot-review/
AI Pilot Review: Key Features
✅Deploy AI expert bots in Any Niche With Just A Click
✅With one keyword, generate complete funnels, websites, landing pages, and more.
✅More than 85 AI features are included in the AI pilot.
✅No setup or configuration; use your voice (like Siri) to do whatever you want.
✅You Can Use AI Pilot To Create your version of AI Pilot And Charge People For It…
✅ZERO Manual Work With AI Pilot. Never write, Design, Or Code Again.
✅ZERO Limits On Features Or Usages
✅Use Our AI-powered Traffic To Get Hundreds Of Customers
✅No Complicated Setup: Get Up And Running In 2 Minutes
✅99.99% Up-Time Guaranteed
✅30 Days Money-Back Guarantee
✅ZERO Upfront Cost
See My Other Reviews Article:
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Games are powerful teaching tools, fostering hands-on engagement and fun. But they require careful consideration to succeed. Join me to explore factors in running and selecting games, ensuring they serve as effective teaching tools. Learn to maintain focus on learning objectives while playing, and how to measure the ROI of gaming in education. Discover strategies for pitching gaming to leadership. This session offers insights, tips, and examples for coaches, team leads, and enterprise leaders seeking to teach from simple to complex concepts.
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
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OpenFOAM solver for Helmholtz equation, helmholtzFoam / helmholtzBubbleFoamtakuyayamamoto1800
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Top Features to Include in Your Winzo Clone App for Business Growth (4).pptxrickgrimesss22
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Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
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By the end of this presentation, you'll have the knowledge on how to organize and improve your code review proces
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Check out the webinar slides to learn more about how XfilesPro transforms Salesforce document management by leveraging its world-class applications. For more details, please connect with sales@xfilespro.com
If you want to watch the on-demand webinar, please click here: https://www.xfilespro.com/webinars/salesforce-document-management-2-0-smarter-faster-better/
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Spring Transaction, Spring MVC,
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A Sighting of filterA in Typelevel Rite of Passage
DSD-INT2016 Mathematical modeling of the influence of a navigable sea channel in the Northern part of the Gulf of Ob on the hydrodynamic and thermohaline regime of the Ob estuary - Arkhipov
1. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Mathematical modeling of the influence of a navigable
sea channel in the Northern part of the Gulf of Ob on the
hydrodynamic and thermohaline regime of the Ob
estuary
Boris Arkhipov, Russian Academy of Sciences, Russia
2. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Research team
Arkhipov B. V. RAS, manual, calculation,
report
Solbakov V. V. RAS, calculation,
Shapochkin D. A. RAS calculation,
Stanovova, A.V., VNIRO, data preparation
Panchenko E. D., MGU data preparation
Lumens, M. H., MGU, data preparation
Fingert, E. A., MGU, data preparation
Consultants: Knizhnikov A. Yu. Head of
Russian part of WWF(World Wildlife Fund)
Alabyan, A. M. MGU
Fig.2. Map of the Kara sea
Fig.1. Location of the sea channel in the Northern
part of the Gulf of Ob (length 50 km, width 400 m,
average depth 4-5m)
3. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Spatial area and
time interval of
simulation
Hydro-
physical
processes
Computer model,
approximation,
technology, recourses
Input data
?
Fig.3. The various components of the modeling process
.
When addressing the
impact of the channel
on the intrusion of
salinity inside the Gulf
of Ob, the researcher is
faced with several
questions, requirements
and constraints within
which it needs to make
a decision.
The first of these problems is the choice of mathematical and computer models.
For the simulation was used a Delft3D three-dimensional model of the hydrodynamic and
thermohaline processes. Previously were used different models to study processes in the Kara sea
and the bays, as developed by the authors of this work and other specialists (particulary model of
Princeton University – POM). At this stage, Delft3D was chosen for the following reasons: high
technology (detailed development of pre and post processing, good interface, graphical
representation of results, etc.), ability to use different coordinate systems (Cartesian, spherical), the
possibility of considering different approaches for the approximation of vertical coordinates (σ –
system, z – system), different models of vertical turbulent mixing, etc. The developers have kindly
given us a license and we started modeling
4. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Fig.4.
1) minimum local area: the Northern boundary
runs along the Cape Drovyanoy, South border is South
of the channel, for example in the area of Tambey,
2) local area: North border passes through Cape
Drovyanoy, South and Eastern boundaries are held in
the mouth areas of the rivers (the Ob, Taz)
3) global scope, covering various parts of the
Kara sea,
4) combination of local and global regions.
100
1
80
x м
t с
мgH
с
the Courant condition
5. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Data
The databank (DB) was created for the determining of BC and verification. DB is created
on the basis of public sources and consists of the following parts.
1) DB "Rivers" for river discharge from the Ob, Nadym, Pur, Taz, Yenisei, Pyasina. Data
sources for the database "River“ (a) Reference books, Hydrological annual editions,
other published materials, (b) Data Bank ArcticRIMS http://rims.unh.edu/ , c) Data
Bank https://gmvo.skniivh.ru, etc.
2) the DB "Hydrology" in salinity and temperature, sea level and currents of the Gulf of
Ob and the Kara sea. Sources of data include:
a) The Levitus data Bank
b) Various publications, journal articles, handbooks, reports and descriptions of
expeditions, etc.,.
3) the DB "Meteo" – meteo data.
a) GMS (Bugrino, Varandey, Maresale island Golomyanny, Dixon, Ust-Port, Tambey, a Wood
Cape, Cape Stone, 60 let VLKSM, Seyakha, Talibiyah, Vorkuta, Salekhard).
b) Open databases of the World's centers of the weather (Data Bank ArcticRIMS;The European
Centre for Medium-range Weather Forecasts NCEP).
c) Receive wind and meteorological data from weather maps, which in particular contain the
pressure field in the form of isobars
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Modelling.…
The work is divided into two stages. The first
phase involves the model verification. The
second stage consists of prognostic calculations
of the intrusion of salinity in the Ob Bay with a
navigable channel and without it.
For verification were selected time frames:
1st time interval, covers the expedition of RV "Dmitry Mendeleev" from 15 August
to 15 October 1993 (nineteen ninety-third year),
The 2nd time interval, covers the expedition of RV "Ivan Kireyev" from 8
September to 7 October 2005 (two thousand fifth year)
3rd time interval, covers the expedition of NIS OTA_777 in the period from 29 July
to 17 August 2010 and 18 September 7, 2010 (two thousand and tenth year)
4-th time interval covers the period of setting the ABS to measure currents in the
summer and autumn months of 2012 (AARI).
For carrying out predictive calculations, we have analyzed the flow of rivers
from 1936 to 2012. Some years was selected as "extreme" with minimal flow. Was
additionally carried out calculations with the combination of minimum flows and
storm surge. The approach gave estimations of the penetration of salinity without
the channel and with channel possible 1 in every 50 - 100 years.
7. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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The comparison of simulation results with currents observations of AARI
(September 2012) in the area of Sabetta
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-1 -0.5 0 0.5 1
-1
-0.75
-0.5
-0.25
0
0.25
0.5
0.75
1
-1 -0.75 -0.5 -0.25 0 0.25 0.5 0.75 1
Tidal
harmonic
u v
Obs Mod Obs Mod
K1 0.05 0.07 0.02 0.08
O1 0.03 0.03 0.03 0.03
P1 0.02 0.03 0.02 0.03
Q1 0.02 0.02 0.03 0.03
K2 0.06 0.05 0.05 0.06
M2 0.25 0.29 0.29 0.40
N2 0.01 0.03 0.03 0.04
S2 0.08 0.04 0.13 0.06
Модуль
00.20.40.60.81
14.8
15.8
16.8
17.8
18.8
19.8
20.8
21.8
22.8
23.8
24.8
25.8
26.8
27.8
28.8
29.8
30.8
31.8
1.9
2.9
3.9
4.9
5.9
6.9
7.9
8.9
9.9
10.9
11.9
12.9
13.9
14.9
15.9
16.9
17.9
18.9
19.9
20.9
21.9
22.9
23.9
24.9
25.9
26.9
27.9
28.9
29.9
30.9
1.10
Дата
Скоростьтечений,м/с
Наблюдения Модель
Fig. 5. Comparison of the non-tidal component of the
current velocities station 17797 horizon -2,2 m, a, b
– components in the module
8. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
The scientific expedition 49 of the RV “Dmitry Mendeleev” from 15 August to 15
October 1993 (IO RAS)
Fig.7. Map of Stations, of 49 expedition of the RV “Dmitry Mendeleev”
from 15 August to 15 October 1993 (Gordeev V, Beeskow B., Rachold V.
Geochemistry of the Ob and Yenisey Estuaries: A Comparative Study. Die
"Berichte zur Polar- und Meeresforschung“, 565/2007 )
Fig. 6. Contours of salinity on the longitudinal
section of the Northern part of the Gulf of Ob
19-27 September 1993 (Bourenkov, Vasilkov,
1994)
9. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN71ºN70ºN69ºN68ºN
Тамбей
Fig. 8. Comparison of fields of salinity on the section along the Gulf of Ob was obtained
in 49 voyage of RV “Dmitry Mendeleev” in the simulation on thin curvilinear grid with
cell size 110m (b) (near Tambey a value of about 9 psu).
Comparison of observation and simulation for the 49 expedition of the RV “Dmitry Mendeleev” from 15
August to 15 October 1993 (Bourenkov, Vasilkov, 1994)
10. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
The scientific expedition of RV OTA_777 (OAO "southern shipping company")
29 July (clearing from ice, flood period) to 17 August and from 18 September to 7
October (autumn period of low water, the beginning of freezing) 2010.
Fig.9. The distribution of salinity in surface and bottom layer in summer polovodny
period: a,b - from 29 July to 17 August 2010,Mr. from 18 September to 7 October,
2010, d – cut in the same periods [S. A. Lapin, 2011, Okeanologiya, 2011, Vol. 51,
No. 6, pp. 984-993. Hydrological Characterization of the Ob’ Inlet in the Summer and
Autumn Seasons ]
а б в г
д
11. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Fig. 10. Comparison of fields of salinity on the section along the Gulf of Ob
obtained in the expedition of 2010 of NIS OTA_777 (a) and in simulation on
curvilinear grid of 40×112 with a minimum width of 1 cell is 460 m .
72ºN71ºN70ºN69ºN68ºN
27-Sept-2010 00:00:00
а
б
12. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Fig. 11. Comparison of currents outside of the channel (point 23.90) and inside the
channel (point 23,70, depth of 14m) in the calculations on the fine curvilinear grid. At
point (of 23.90) located outside of the channel hodograph velocity has an ellipsoidal
shape. At point (23,70), located within the channel, the velocity is mainly directed to
the North-South, and the hodograph of the velocity has a linear form.
100 см/сек
10 см/сек
100 см/сек
13. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
THE RESULTS OF THE FORECAST (SCENARIO) MODELING
Fig.12. Runoff from 1936 to 2012 have been considered. A comparison of the total
runoff (Ob, Nadym, Pur, taz) of 1956 to the runoff of the 1967, 1968, 1969гг (a), 1969
to the runoff of the 1970, 1971, 1972 (b), 1973, 1974, 1975 (c) 1976, 1977, 1978(d)
14. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Fig. 13. The dependence of runoff for the interval from March 1 to may 20 from
minimum flow rate
15. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Fig.14. The distribution of salinity in the section along the Gulf of Ob in pre-flood
period of 1969 without the channel according to the simulation on the fine
curvilinear grid 48×130 with a width of 1 cell in the region of the trench 110 m wide
trench 440m (4 cell)
72ºN71ºN70ºN69ºN68ºN
72ºN71ºN70ºN69ºN68ºN
16. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Fig.15. The distribution of salinity in the section along the Gulf of Ob in pre-flood
period of 1969 with the channel according to the simulation on the fine
curvilinear grid 48×130 with a width of 1 cell in the region of the trench 110 m
wide trench 440m (4 cell)
72ºN71ºN70ºN69ºN68ºN
72ºN71ºN70ºN69ºN68ºN
17. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Fig. 16. The distribution of salinity in the section along the Gulf of Ob in the flood
period of 1969 without the channel according to the simulation on the fine
curvilinear grid 48×130 with a width of 1 cell in the region of the trench 110 m wide
trench 440m (4 cell)
72ºN71ºN70ºN69ºN68ºN
72ºN71ºN70ºN69ºN68ºN
18. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Fig. 17. The distribution of salinity in the section along the Gulf of Ob in the flood
period of 1969 with the channel according to the simulation on the fine curvilinear
grid 48×130 with a width of 1 cell in the region of the trench 110 m wide trench 440m
(4 cell)
72ºN71ºN70ºN69ºN68ºN
72ºN71ºN70ºN69ºN68ºN
19. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Pre flood (spring) Post flood (summer, autumn)
1 psu 2 psu 3 psu 10 psu 18psu 1 psu 2 psu 3 psu 10 psu 18psu
coarse curvilinear mesh 40×112 with a width of 1 cell in region the trench 460 m
trench width 1380 m (3 cells)
1 psu 2 psu 3 psu 10 psu 18psu 1 psu 2 psu 3 psu 10 psu 18psu
1969 8 12 15 50 37 20 17 25 34 36
a thin curvilinear mesh with number of cells 48×130, with the width of 1 cell in region the
trench 110, the trench width 440m (4 cell)
1 psu 2 psu 3 psu 10 psu 18psu 1 psu 2 psu 3 psu 10 psu 18psu
1969 8 5 5 8 11
Table 4. The increase in distance (km) of intrusion of salinity at the onset of channel
20. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Table 2. Position (km) of salinity isolines, obtained in the calculations,
possible one at fifty or one at hundred years
72ºN
71ºN
70ºN
69ºN
68ºN
м. Каменный
Сеяха
Тамбей
Новый
Порт
Яптиксале
м. Трехбугорный
Pre flood (spring)
With out surge With surge
With out
channel
With
channe
l
With
out
channel
With channel
196
9
coarse curvilinear mesh 40×112 with a width of 1 cell in
region the trench 460 m trench width 1380 m (3 cells)
1
psu
7620 7612 7580 (68.6 ºN, south cape
Kamennyi) 7572
2
psu
7735 7723 7666 (68.8ºN south cape
Trehbugornyi) 7653
3
psu
7755 7740 7689 7666 (69ºN cape
Trehbugornyi) 7675
10
psu
7844 7794 7781 (70ºN south Seyaha)
7766
18
psu
7977 7940 7910 (north Seyaha,
71,1ºN)
7896
21. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
Pre flood (spring)
Post flood (summer, autumn)
With out surge With surge
With out channel With channel With out channel With channel With out channel With channel
1969
a thin curvilinear mesh with number of cells 48×130, with the width of 1 cell in region
the trench 110, the trench width 440m (4 cell)
1 psu 7611.5
7609
2 psu 7722 7717
3 psu 7745 7740
10 psu 7788 7780
18 psu 7945 7934
Table 3. Intrusion distance (km) salinity based on the calculation results (fine mesh 1969)
22. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Вынос соли
-8.0E+11
-6.0E+11
-4.0E+11
-2.0E+11
0.0E+00
2.0E+11
4.0E+11
6.0E+11
8.0E+11
01.01
08.01
15.01
22.01
29.01
05.02
12.02
19.02
26.02
05.03
12.03
19.03
26.03
02.04
09.04
16.04
23.04
30.04
07.05
14.05
21.05
28.05
04.06
11.06
18.06
25.06
02.07
09.07
16.07
23.07
30.07
06.08
13.08
20.08
27.08
03.09
Дата
М,кг
без траншеи
с траншеей
Вынос соли
-6.5E+11
-6.3E+11
-6.1E+11
-5.9E+11
-5.7E+11
-5.5E+11
-5.3E+11
-5.1E+11
01.04
08.04
15.04
22.04
29.04
Дата
М,кг
без траншеи
с траншеей
Вынос соли
7.0E+11
7.1E+11
7.2E+11
7.3E+11
7.4E+11
7.5E+11
7.6E+11
7.7E+11
7.8E+11
15.07
22.07
29.07
05.08
12.08
Дата
М,кг
без траншеи
с траншеей
Fig. 18. Integrated advective
arrival/departure of salinity
through the cross sectional
area of bar
23. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Conclusions
1. Conducted verification calculations of the process of intrusion of salinity in
the Ob Bay for the period of the 49 flight of the RV “Dmitry Mendeleev” 15 August to
15 October 1993 . for the period of the expedition of RV "Ivan Kireyev" from 8
September to 7 October 2005, [3], for the expedition of NIS OTA_777 in the period
of September 18-October 7, 2010, in the period August –September 2012[4,6],
setting of ABS in the Northern part of the Gulf of Ob for the measurement of
currents.
2. Verification calculations were conducted on 2 grids: curvilinear mesh of
39×74, the width of 1 cell in the field of 703m trench, trench 2 cells, the width of the
trench 1407м; curvilinear grid 48×93, the width of 1 cell in the region of the trench
110, the trench 4 of the cell, the trench width 449м. A comparison is conducted of
the calculated data for the two networks. The results showed some stability during
the transition from coarser to finer grid. The range of penetration of salt in the
calculations on coarse grid more than the calculations on a fine grid.
Results shows not bad coincidence of calculations with observations.
24. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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4. A comparison is coducted of the data obtained in the variants without
channel to channel. The results show on the rough curvilinear grid with cell size
703m and channel width 1407м contour psu 3 moves inward of the bay by about
50 km, and the salinity in the area of Tambey growth of 5-6 psu. Thin curvilinear
grid with a minimum cell size of 110m and width of the channel 440m contour psu
3 moves inward of the bay by about 2-5 km, and the salinity in the area of Tambey
increases to 3-4 psu. I.e. the effect of the channel has decreased in 2-2,5 times
with the decrease of its width by 3-4 times.
5.The calculations show that the main factors influencing the penetration of
salinity in the Ob Bay, are the river flow and wind surge from the Kara sea and
also, to a lesser extent, tide. The most deep penetration of salinity inside of the
bay occurs when there are the combination of minimum rivers flows and surges
from the Kara sea. Other factors such as thermal processes, the formation and
melting of ice, the water exchange through the sea surface although providing
some additional influence, but are of secondary importance.
25. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
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Modelling.…
7. For the scenario (prognostic) analysis, the total runoff of the main rivers (the Ob,
Nadym, PUR, Taz) for the period from 1936 to 2012. Based on this analysis, selected key
years (candidates to the extreme), in terms of minimum runoff in such years are 1956 and
1969гг, and from the point of view of the minimum flow 1954. For these years, as for several
others, have carried out calculations of the penetration of salinity in the Ob Bay.
8. From the results of the scenario (forecast) calculations follows that in pre flood (spring)
period maximum penetration of salinity due to the river flow fluctuations occur in 1969. It
is seen that in normal conditions (no channel), 1 psu contour is located on the coordinate 7620
km (68.5 ºC.Sh., 20km North of M. Stone), 3 psu – 7755км (69,7 ºC.Sh. 10km to the North of
Yaptiksale), and 10 psu – 7844км (70.6 per ºC.Sh. 40km North Seyahi). The appearance of the
channel in the calculations on coarse grid shifts to the South the contour 1 psu on 7-18 km 3
psu – 8 - 15 km and 10 psu – 9 - 57км depending on the year. In the calculations on a fine grid
shift decreases and reaches a maximum for 1 psu – 10 km, 3 psu – 5 km, 10 psu – 12 km, 18
psu 11 km. From the results it follows that the farther from the channel region is the contour,
the less affected by his influence.
9. Calculations of salt water intrusion in 1969 in a joint account runoff and surges show
that the contour 1 psu was on the coordinate 7580км (without the channel) and 7572км
(channel) (68.6 ºC.Sh., 20-30 km South cape Stone), 3 psu – 7689 (without the channel) and
7675км (channel) (69,2 ºN cape Trehbugornyi), 10 psu – 7781 (without the channel) and
7766км (with channel) (70,2 ºN Seyakha), 18psu - 7910 (no channel) and 7896км (channel)
(71,1 ºN). These distances can be taken as an estimate of penetration of salinity in the Ob Bay
in the presence of channel possible one in every 50 - 100 years.
26. ОПЫТ ПОСТРОЕНИЯ СПЕЦИАЛИЗИРОВАННЫХ ИНФОРМАЦИОННЫХ СИСТЕМ (СИАС).…
26
Modelling.…
10. Comparison of results of calculations of integral receipt of salinity inside the
Gulf of Ob to the channel without the channel provides that the construction of the
channel leads to an increase in revenues of salinity inside the Gulf of Ob by about
5%, the duration of the period of time exceeding the maximum value of the
background state is approximately two weeks.
11. From the results pertaining to the flood period, it follows that when the
increase in flow of salt water pushed into the bar area (and bar) in the presence of
channel as well as in its absence, i.e. any accumulation of salty waters in southern
areas of the Ob Bay is not happening. The system behaves like a "coarse" dynamic
system: when you change a parameter there is a shift in balance, but a qualitative
restructuring of the system occurs.