Real-time ocean modeling systems

2002 ◽  
Vol 4 (2) ◽  
pp. 50-57 ◽  
Author(s):  
A.J. Wallcraft ◽  
H.E. Hurlburt ◽  
E.J. Metzger ◽  
R.C. Rhodes ◽  
J.F. Shriver ◽  
...  
Keyword(s):  
Real Time ◽  
Ocean Modeling ◽  
Modeling Systems

scholarly journals AquaVar: Real Time Models for Underground and Surface Waters Management at Catchment Scale

10.29007/mv2t ◽  
2018 ◽  
Author(s):  
Philippe Gourbesville ◽  
Marc Gaetano ◽  
Qiang Ma
Keyword(s):  
Real Time ◽  
Water Distribution ◽  
Current Situation ◽  
Urban Environments ◽  
Catchment Scale ◽  
Modeling Tools ◽  
Modeling Systems ◽  
Common Framework ◽  
Water Uses ◽  
Time Assessment

Management of water uses requests to harmonize demands and needs which are getting more complex and sophisticated. During the past 3 decades, modeling systems for hydrology, hydraulics and water quality have been used as stand alone products and were used in order to produce an analysis of a current situation and to generate forecast according to different horizons. The current situation requests an integration of the modeling tools into the information systems that are now dedicated to the global management of urban environments. Energy distribution, water distribution, solid wastes collection, traffic optimization are today major issues for cities that are looking for functional Decisions Supports Systems (DSSs) that may operate in a sustainable perspective. The basic requirement of real time assessment of the situation, the modeling systems identified as main elements of analytics and used for forecasts have to integrate a common framework allowing modular approach and interoperability. The paper presents the interest for a generic operational approach that could be implemented in order to address the management of water uses in a complex urban environment and to provide real time assessment and forecasts. The proposed approach is illustrated with application on Var catchment (3,000 km2) located in the French Riviera.

An Approach to Analyzing and Modeling Systems for Real-Time Decisions

2007 ◽  
pp. 3-38
Author(s):  
John Brocklebank ◽  
Tom Lehman ◽  
Tom Grant ◽  
Rich Burgess ◽  
Lokesh Nagar ◽  
...  
Keyword(s):  
Real Time ◽  
Modeling Systems

scholarly journals Coastal Ocean Modeling: Processes and Real-Time Systems

Oceanography ◽  
2000 ◽  
Vol 13 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Dale Haidvogel ◽  
Blanton ◽  
Kindle ◽  
Lynch
Keyword(s):  
Real Time ◽  
Coastal Ocean ◽  
Modeling Processes ◽  
Ocean Modeling ◽  
Real Time Systems ◽  
Time Systems

scholarly journals Navy Real-time Global Modeling Systems

Oceanography ◽  
2002 ◽  
Vol 15 (1) ◽  
pp. 29-43 ◽  
Author(s):  
Robert Rhodes ◽  
Harley Hurlburt ◽  
Alan Wallcraft ◽  
Charlie Barron ◽  
Paul Martin ◽  
...  
Keyword(s):  
Real Time ◽  
Global Modeling ◽  
Modeling Systems

NCAR’s Real-Time Convection-Allowing Ensemble Project

2019 ◽  
Vol 100 (2) ◽  
pp. 321-343 ◽  
Author(s):  
Craig S. Schwartz ◽  
Glen S. Romine ◽  
Ryan A. Sobash ◽  
Kathryn R. Fossell ◽  
Morris L. Weisman
Keyword(s):  
Real Time ◽  
Community Response ◽  
Ensemble Forecasts ◽  
Operational Capabilities ◽  
Modeling Systems ◽  
Diverse Application ◽  
Performance Statistics ◽  
One Year ◽  
Operational Development ◽  
Horizontal Grid

AbstractBeginning 7 April 2015, scientists at the U.S. National Center for Atmospheric Research (NCAR) began producing daily, real-time, experimental, 10-member ensemble forecasts with 3-km horizontal grid spacing across the entire conterminous United States. Graphical forecast products were posted in real time to the Internet, where they attracted a large following from both forecasters and researchers across government, academia, and the private sector. Although these forecasts were initially planned to terminate after one year, the project was extended through 30 December 2017 because of the enthusiastic community response. This article details the motivation for the NCAR ensemble project and describes the project’s impacts throughout the meteorological community. Classroom and operational use of the NCAR ensemble are discussed in addition to the diverse application of NCAR ensemble output for research purposes. Furthermore, some performance statistics are provided, and the NCAR ensemble website and data visualization approach are described. We hope the NCAR ensemble’s success will motivate additional experimental forecast demonstrations that transcend current operational capabilities, as forward-looking forecast systems are needed to accelerate operational development and provide students, young scientists, and forecasters with glimpses of what future modeling systems may look like. Additionally, the NCAR ensemble dataset is publicly available and can be used for meaningful research endeavors concerning many meteorological topics.

Touch Based Interactive NURBS Modeler Using a Force/Position Input Glove

2004 ◽  
Author(s):  
Ameya Kamerkar ◽  
T. Kesavadas
Keyword(s):  
Real Time ◽  
Physical Object ◽  
Input Device ◽  
Concept Design ◽  
Input Devices ◽  
B Spline ◽  
Pressure Sensitive ◽  
Modeling Systems ◽  
Nurbs Surfaces ◽  
Time Standard

Non-Uniform Rational B-spline (NURBS) surfaces form an integral part of commercial modeling systems because of its ability to represent freeform as well as common analytic shapes. The creation of complex NURBS in design environments is a tedious process because very few tools exist, that allow a designer to design intuitively in real-time. Standard input devices such as the mouse and the keyboard do not provide the designer with direct and easy capabilities for surface manipulation. We have developed a NURBS modeling system that allows the designer to edit NURBS surfaces in real-time using a pressure sensitive sculpting/molding input device designed to be worn as a glove called the ModelGlove. This input device is equipped with force and position sensors for quantifying touch and intent of the designer. A virtual block deforms in a physically realistic manner in response to the user’s direct manipulation of a hard or soft real physical object. The dynamic behavior of the NURBS model in response to the force and position input obtained from the ModelGlove, produces highly natural shape variations. Experimental results show the potential of the system for product and concept design applications.

The Ocean Observing System for Santos Basin: Project Blue

2014 ◽  
Author(s):  
Luiz Paulo de Freitas Assad ◽  
Mauricio da Rocha Fragoso ◽  
Luiz Landau ◽  
Flavia Adissi
Keyword(s):  
Data Collection ◽  
Real Time ◽  
Research Work ◽  
Ocean Modeling ◽  
Main Research ◽  
Exploration And Production ◽  
In Situ Sensors ◽  
Surface Drifters ◽  
Basin Region ◽  
Ocean Observing

The Santos Basin region is located in the southeast part of Brazilian offshore region and contains the most important presalt oil reservoirs. The oceanographic knowledge of this region is very important for the future challenges related with oil exploration and production. The Ocean Observing System for Santos Basin also known as Blue Project started in August 2012 and its main goal is the development of a pioneer ocean observing system for Santos Basin region (Brazil) based on ocean modeling applications and real time systematic ocean data collection [1]. The data collection program makes use of satellite remote sensing and in situ sensors such as surface drifters, floaters and gliders. The proposed methodology is based in three main research work branches: ocean and atmosphere modeling, real time ocean data collection and disclosure of all the generated information. In this work it will be presented the description of the applied methodology and the preliminary results achieved by the Project.

Some Recent Results in Quiescent Prominence Spectrometry

1979 ◽  
Vol 44 ◽  
pp. 41-47
Author(s):  
Donald A. Landman
Keyword(s):  
Real Time ◽  
Computer System ◽  
Spectral Response ◽  
Absolute Intensity ◽  
Solar Observatory ◽  
Target Size ◽  
Small Target ◽  
Signal Averaging ◽  
Quiescent Prominence

This paper describes some recent results of our quiescent prominence spectrometry program at the Mees Solar Observatory on Haleakala. The observations were made with the 25 cm coronagraph/coudé spectrograph system using a silicon vidicon detector. This detector consists of 500 contiguous channels covering approximately 6 or 80 Å, depending on the grating used. The instrument is interfaced to the Observatory’s PDP 11/45 computer system, and has the important advantages of wide spectral response, linearity and signal-averaging with real-time display. Its principal drawback is the relatively small target size. For the present work, the aperture was about 3″ × 5″. Absolute intensity calibrations were made by measuring quiet regions near sun center.

Video real-time imaging of artificial membranes during freeze-drying by cryo-electron microscopy

1988 ◽  
Vol 46 ◽  
pp. 16-17
Author(s):  
Alan S. Rudolph ◽  
Ronald R. Price
Keyword(s):  
Real Time ◽  
Self Assembly ◽  
Freeze Drying ◽  
Video Capture ◽  
Drying Process ◽  
Artificial Membranes ◽  
The Past ◽  
Cryo Electron Microscopy ◽  
Spherical Structures ◽  
Capture Techniques

We have employed cryoelectron microscopy to visualize events that occur during the freeze-drying of artificial membranes by employing real time video capture techniques. Artificial membranes or liposomes which are spherical structures within internal aqueous space are stabilized by water which provides the driving force for spontaneous self-assembly of these structures. Previous assays of damage to these structures which are induced by freeze drying reveal that the two principal deleterious events that occur are 1) fusion of liposomes and 2) leakage of contents trapped within the liposome [1]. In the past the only way to access these events was to examine the liposomes following the dehydration event. This technique allows the event to be monitored in real time as the liposomes destabilize and as water is sublimed at cryo temperatures in the vacuum of the microscope. The method by which liposomes are compromised by freeze-drying are largely unknown. This technique has shown that cryo-protectants such as glycerol and carbohydrates are able to maintain liposomal structure throughout the drying process.

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