FSL in Review 2000 - 2001

Cover/Title Page

Organizational Chart

Message from
the Director

Office of Administration
and Research

Forecast Research

Facility Division

Demonstration Division

Systems Development

Aviation Division

Modernization Division

International Division


Acronyms and Terms


Contact the Editor
Nita Fullerton

Web Design:
Will von Dauster
John Osborn

Best Viewed With
Internet Explorer

Aviation Division

Dr. Michael J. Kraus, Chief
(Supervisory Meteorologist)


Web Homepage: http://www-ad.fsl.noaa.gov/

Young S. Chun, Research Associate, 303-497-6426
Chris Fischer, Research Associate, 303-497-7451
Jim Frimel, Research Associate, 303-497-7429
Lisa Gifford, Research Associate, 303-497-4274
Mark Govett, Computer Specialist, 303-497-6278
Joan Hart, Research Associate, 303-497-6882
Judy K. Henderson, Computer Scientist, 303-497-6940
Thomas Henderson, Computer Scientist, Chief, Advanced Computing Branch,
Andrew Loughe, Research Associate, 303-497-6211
Jennifer L. Mahoney, Meteorologist, 303-497-6514
Cherie L. Marvel, Secretary Office Automation, 303-497-6122
Chris Masters, Systems Administrator, 303-497-7537
Jacques Middlecoff, Research Associate, 303-497-6034
Greg Pratt, Computer Specialist, Chief, Aviation Systems: Development and Deployment Branch,
Dennis M. Rodgers, Meteorologist, 303-497-6933
Dan Schaffer, Computer Scientist, 303-497-7252
Dr. Lynn A. Sherretz, Meteorologist, Chief, Requirements, Applications, and Quality Assessment Branch,
Beth Sigren, Research Associate, 303-497-7044
Sher M. Wagoner, Senior Systems Analyst, 303-497-7254

(The above roster, current when document is published, includes
government, cooperative agreement, and commercial affiliate staff.)

NOAA Forecast Systems Laboratory Mail Code: FS5
David Skaggs Research Center
325 Broadway
Boulder, Colorado 80305-3328


The Aviation Division collaborates with the Federal Aviation Administration (FAA), National Weather Service (NWS), Department of Defense (DOD), Department of Transportation (DOT), and Central Weather Bureau (CWB) of Taiwan. The product of these collaborations is an improved weather forecasting and visualization capability for use by military and civilian forecasters, air traffic controllers, air traffic managers, airline dispatchers, and general aviation pilots. More opportunities to develop better weather products now exist because of new observing systems, recent advances in understanding the atmosphere, and higher performance computing capabilities.

The division comprises three branches:

    Aviation Requirements, Applications, and Quality Assessment Branch – Defines requirements for generating and disseminating aviation weather products; develops the capability to assess the quality of products generated both automatically and by aviation weather forecasters, and the "guidance" forecasters use to generate those products. Figure 46 shows a screen from the 2001 Real-Time Verification System (RTVS) turbulence intercomparison Website.

AD - RTVS 2001 Web Screen of Turbulence Intercomparison

    Aviation Systems: Development and Deployment Branch – Manages enhancement, testing, fielding, and supporting of advanced meteorological workstations for the NWS Aviation Weather Center (AWC); develops new Aviation Digital Data Service (ADDS) Web products for use by the aviation community.

    Advanced Computing Branch – Assures the continuing improvement of high-resolution numerical weather analysis and prediction systems through research and development in high-performance computing.

In addition to its own activities, the Aviation Division provides funds for other FSL divisions to assist in achieving these goals.

Aviation Requirements, Applications,
and Quality Assessment Branch
Lynn A. Sherretz, Chief


The Aviation Requirements, Applications, and Quality Assessment Branch develops requirements for and evaluates the utility of advanced products and software tools for the aviation community. The software tools include flight planning tools for pilots, air traffic controllers and managers, and airline dispatchers; quality assessment tools for aviation forecasters, researchers, developers, and program leaders; and product generation and grid interaction tools for aviation weather forecasters.

The branch serves as the focal point for coordinating activities with the FAA Aviation Weather Research Program (AWRP) and the U.S. Air Force Weather Agency (AFWA), organizations which fund the development efforts. Two other functions involve leading the AWRP Product Development Team for Aviation Forecasts and Quality Assessment (AF&QA), and facilitating projects that provide the Air Force with globally relocatable, high-resolution atmospheric analyses (using the Air Force's global datasets).

Flight Planning Tools

In collaboration with the National Center for Atmospheric Research (NCAR) and the NWS Aviation Weather Center (AWC), the branch continues development work on the Aviation Digital Data Service (ADDS) system. Aviation decision-makers can use this Internet-based system to access text, graphics, grids and images of up-to-the-minute observations, and forecasts of high-resolution aviation impact variables (AIVs) tailored to specific flight routes. The ADDS Website is available at http://adds.aviationweather.gov/.

Quality Assessment Tools

The Real-Time Verification System (RTVS) was developed at FSL as a verification tool for assessing the quality and effectiveness of weather observations, warnings, and forecasts. AWC and the NWS Alaska Aviation Weather Unit use the RTVS to objectively monitor and evaluate the quality of in-flight aviation weather advisories issued for icing, turbulence, and convection. As a versatile easy-to-use system, the RTVS allows users to access statistical displays through an interactive Web-based interface, at http://www-ad.fsl.noaa.gov/fvb/rtvs/index.html. The real-time capabilities include data ingest, and grid-to-observation and forecast-to-observation interpolation. As data become available in real time, the RTVS accesses observations, model grids, and NWS forecasts, interpolates the grids and forecasts to the observation locations, and saves the information necessary for statistical computations. Two significant uses of the RTVS are to provide long-term assessment of the quality of NWS forecasts and to support short-term verification intercomparison exercises that support the improvement of model-based weather forecasts.

Product Generation and Grid Interaction Tools

AWIPS software tools are developed that will enable forecasters at the AWC in Kansas City, Missouri, to efficiently generate aviation forecasts as text, graphics, and grids. This work supports AWC's commitment to use model forecasts and algorithms as the starting point for generating aviation warnings and forecasts.

Program Development and Technology Transfer Project

The goal of the Program Development and Technology Transfer project is to expand FSL's opportunities to develop new collaborative activities with domestic and foreign research and operational groups within government, educational institutions, and the private sector. The project leaders will build on FSL's expertise in numerical weather prediction, data assimilation, high-performance computing, and observing systems. Advances in weather warning support, better dissemination, and graphical forecast editing are among the technologies planned for infusion into operational weather services during the coming years.


Flight Planning Tools

During Fiscal Year 2000, the branch collaborated with NCAR on more ADDS work. They developed an interactive Java-based viewer for voice pilot reports (PIREPS, Figure 47), monitoring and alerting software that will help NWS staff support ADDS operationally, and an interactive "Forum" that enables users to view messages and post replies.

AD - ADDS Web Screen with PIREPs

The ADDS Website was selected by the Government Executive magazine as a recipient of the 2000 Government Technology Leadership award. The ceremony, with 400 attendees, was held during a two-day postgraduate program, which brought 200 senior federal managers to Washington, D.C., to learn about effective use of technology in agency programs.

Quality Assessment Tools

Improvements to the RTVS Web based graphical user interface provide extensive flexibility for accessing the statistical results. Users can now quickly access and easily combine any variety of forecasts, verification windows, and statistical measures to produce on-the-fly plots. A complement to the new interface was developed that provides the ability to access the pairs from a relational database, adding another dimension to investigate the quality of forecasts.

Over two summer seasons, the newly implemented FAA/NWS Collaborative Convective Forecast Product (CCFP; Figure 48) and other operational and experimental convective forecasts were evaluated to assess their quality, and strengths and weaknesses. The results showed that for the CCFP, the forecast areas were reduced from 1999 to 2000, while values of the Probability of Detection (POD) and False Alarm Ratio (FAR) remained consistent, as shown in Figure 49. The convective exercise also provided a mechanism for testing and evaluating the verification methods. Analysis of the methodology revealed that the scale on which the forecasts are issued is an important factor and should be considered when developing the verification methods.

AD - Collaborative Convective Forecast Product

Figure 48. A screen showing the Collaborative Convective Forecast Product for 3 April 2001. The black solid polygon represents the convection area covered, and yellow and orange represent low and medium convection, respectively. The actual coverage, computed from the verification, is represented in the white box. Green indicates the verifying observations, with the valid time labeled on the bottom left-hand corner. The issue time, forecast length, valid time, and statistical results are listed along the banner to the left of the plot.

AD - Time Series Statistical Data Plots - a

AD - Time Series Statistical Data Plots - b

AD - Time Series Statistical Data Plots - c

Figure 49. Time series plots of PODy (a - top), FAR (b - middle), and % Area (c - bottom) for the preliminary (*) and final (triangle) convective forecasts verified using the 20-km NCWD from 1 June – 31 October 1999 (dashed lines) and 2000 (solid lines).

The first stage toward fully implementing a real-time verification system at the AWC was accomplished. The capability to produce the forecast/observation pairs for icing and turbulence in-flight advisories in near real time was implemented at the AWC. The verification statistics now reflect the forecasts and observations used by the meteorologists to produce their forecasts. This work required moving forecast decoders and RTVS code to operational systems residing at the AWC, and modifying data formats and ingest routines to accommodate AWC data.

Product Generation and Grid Interaction Tools

An initial version of an AWIPS software tool was developed for generating Convective SIGMETs efficiently in a true end-to-end manner.

The branch participated in a joint FAA/NWS working group to define requirements for weather information for FAA Traffic Management Units (TMUS) tasked with managing air traffic in enroute and terminal environments. Assistance was also provided FAA in preparing a detailed research plan for rapid prototyping of weather products for TMUs and methods for collaboratively generating those products.

Program Development and Technology Transfer Project

In keeping with FSL's mission to transfer new technology and research findings to other NOAA offices and other users of environmental information, many new program development activities are underway. For example, a collaborative agreement is being negotiated between FSL and the Cooperative Institute for Research in the Atmosphere (CIRA) to develop relationships with scientists who can help resolve DoD's operational weather problems. Approval of this agreement will open the door for FSL to participate in technology insertion plans with DoD, CIRA, and the Johns Hopkins University Applied Physics Laboratory. FSL will provide real-time data and other technical support to improve weather forecasting at DoD.

FSL collaborated with the Air Force Weather Agency (AFWA) and the Global Weather Center (GWC) to provide software systems, meteorological science, and systems integration support to the Global Theater Weather Analysis and Prediction System (GTWAPS). This development included a worldwide relocatable mesoscale analysis and prediction system with functions ranging from data ingest and analysis to methods of forecast data visualization. FSL's technology has been an important part of the Air Force's re-engineering program. AFWA also funded development of the basic infrastructure for initializing the Weather Research and Forecast (WRF) model, which will be incorporated into the development and research systems at AFWA.

The Range Standardization and Automation (RSA) system will serve the needs of launch weather support, daily operations, range safety, and other activities. The RSA project involves other FSL technology transfer tasks that have been funded by Lockheed-Martin. FSL will help develop a version of the AWIPS workstation to be deployed at the launch support sites at Cape Kennedy, Florida; Patrick Air Force Base, Florida; and the Western Launch Range weather support unit at Vandenberg AFB, California.


Flight Planning Tools

During Fiscal Year 2001, plans are to 1) evaluate in a "live" setting the utility of ADDS as an interactive component of FAA Flight Service Station (FSS) weather briefings for General Aviation (GA) pilots; 2) enable pilots to submit PIREPs to ADDS via Personal Digital Assistants; 3) enable ADDS to monitor key observations and forecasts for user-specified conditions and alert users when those conditions are met; 4) complete the transfer of ADDS to the NWS Aviation Weather Center; ADDS will be able to acquire satellite observations from the AWC AWIPS system (Figure 50) instead of an NCAR system that is not supported 24 hours a day, 7 days a week; and 5) enable ADDS to link with FAA-funded vendor sites providing flight planning services which can be accessible to GA pilots for filing flight plans.

AD - ADDS Website - Satellite Page

Quality Assessment Tools

Staff will continue to extend RTVS capabilities to meet FAA and NWS verification requirements. Verification methods will be enhanced for convective forecasts that are used to diagnose location errors in complex forecasting situations, in an attempt to provide insight into the impact of the forecasts on flight operations. Developments will continue on the RTVS Web-based graphical user interface and database capabilities, which will be transferred to the AWC. Verification support will continue for FAA and NWS-sponsored activities such as the Thunderstorm Operational Research (THOR) project, CCFP, and turbulence exercises.

Product Generation and Grid Interaction Tools

The focus next year will remain on rapid prototyping of products for FAA TMUS. A key task will be to evaluate the utility of FSL's FX-Connect workstation, which enables forecasters at various locations and on various computer platforms to view concurrently and in real time basic AWIPS weather displays; invoke basic workstation functions such as animating, zooming, and overlaying; and collaboratively generate free-hand and icon-based graphical products. FX-Connect can be readily adapted to display output generated by advanced algorithms and forecast models. It is an ideal vehicle for rapid prototyping because it does not reside within the AWIPS firewall, thus providing the flexibility to make rapid enhancements.

Program Development and Technology Transfer Project

In the next fiscal year, FSL will actively seek collaborative and/or funded partnerships with:

  • DoD, NOAA's Space Environment Center, and the National Geodetic Survey to develop a high accuracy, real-time positioning and navigation model.
  • DoD to utilize the FSL-developed FX-Net compression techniques for gridded data transmission for DoD operational weather systems, the Integrated Meteorological System (IMETS) and GTWAPS.
  • DoD to utilize the Graphical Forecast Editor (GFE) applications in the DoD forecast workstations.

FSL will increase efforts to create new collaborations with other domestic and international research and operational groups within the private sector, government, and educational institutions that can utilize mature technologies developed at FSL. Other outreach plans in support of program development include finding additional venues for systems demonstrations and technical presentations, and developing a Website highlighting collaborative project opportunities at FSL.

Aviation Systems: Development and Deployment Branch
Greg Pratt, Chief


The Aviation Systems: Development and Deployment Branch is responsible for adding enhancements, testing, fielding, and operationally supporting prototype systems for Aviation Division projects. Current branch activities involve the AWIPS/FX-Advanced system at the Aviation Weather Center (AWC), the Aviation Digital Data Service (ADDS), the Advanced Traffic Management System (ATMS), Federal Aviation Administration (FAA) Traffic Management Units (TMUs), and the WorldWide Weather Workstation (W4).

AWIPS/FX-Advanced at the Aviation Weather Center

In helping to create better forecasts for the aviation community, the branch works with the Aviation Division Requirements, Applications, and Quality Assessment Branch to refine requirements for forecaster productivity tools and meteorological displays to be implemented on an AWIPS/FX-Advanced system. The branch then develops, implements, and tests enhancements to the AWIPS/FX-Advanced workstation at the Aviation Weather Center (AWC). Requirements are geared toward improving aviation forecasts by tailoring the AWIPS/FX-Advanced system to meet the needs of aviation forecasters. The AWIPS platform was chosen as the baseline development system at AWC because it was being deployed as the operational system at all Weather Forecast Offices, and had the potential to standardize NWS operations. AWIPS also offers a stable platform in which to demonstrate advanced prototyping at the NOAA National Centers, and provides a clear path for advanced capabilities developed by this branch to become operational attributes of all AWIPS systems. The current FX-Advanced system architecture at AWC is equipped with a text workstation, data display system, data server, and application server. This system receives NOAAPORT data from a central processor that was configured and added to the operational AWIPS systems delivered by the AWIPS contractor, Litton PRC Inc. The central processor and the AWIPS/FX-Advanced system at AWC sit outside the AWIPS firewall. All NOAAPORT data are ingested, processed, and stored on the data server (awcdata1). All AWC-specific datasets (received via DBNet) are ingested, processed, and stored according to AWIPS standards and formats on the applications processor (awcapps1). All meteorological data displays and aviation tools are available on the data display (awcdispl) for the operational forecasters.

Aviation Digital Data Service

The ADDS Website is designed as a flight planning tool for airline dispatchers and pilots. Division staff work with the National Center for Atmospheric Research (NCAR) in the design and implementation of this Website. Aviation-Impact Variables (AIVS) are updated in real time and made available to users as GIF images, text, or interactively through the use of Java applets. The site targets users with low-end systems and older versions of Web browsers, as well as high-end users who can use Java applets to interactively query the system, that is, to obtain weather information for a particular airport or flight path.

Advanced Traffic Management System

Flight and aviation weather data available on the ATMS provide automation support for strategic planning of national airspace. The branch works with Volpe National Transportation Systems Center in integrating aviation-tailored weather products on the Aircraft Situation Display (ASD). The FAA air traffic managers at the Air Route Traffic Control Centers (ARTCCs) throughout the United States use this information to minimize delays and relieve air traffic congestion. The Aviation Weather Network, developed by this branch, supplies real-time aviation weather products that are disseminated on the ATMS at the Volpe center.

FAA Traffic Management Units

The branch works with the Modernization Division and the NWS Southern Region headquarters in deploying and enhancing FX-Connect at the Central Weather Service Unit (CWSU) at the Dallas/Fort Worth ARTCC, the Fort Worth WFO, and the AWC. FX-Connect is being designed to aid in collaborative efforts among these offices toward creating better and more unified aviation forecasts. Each site will host a client FX-Connect system that will be connected to the Internet and attached to an AWIPS/FX-Advanced server running at the AWC. Figure 51 shows the above system architecture. When the three client systems are connected to the server in collaboration mode, the forecasters at each site can view, edit, and discuss simultaneously weather phenomena that will affect the aviation community in the Dallas/ Fort Worth area.

AD - FX-Connect System Architecture Diagram

Figure 51. Diagram of the FX-Connect system architecture for the Central Weather Service Unit at the Dallas/Fort Worth ARTCC, the Forth Worth Weather Forecast Office, and the Aviation Weather Center.

WorldWide Weather Workstation

The branch has been working with the International Division in the development of the W4 system, with the goal to deliver an inexpensive full-featured weather system for remote sites. The W4 system server will transmit compressed satellite, grids, and observation data to a satellite at 128 Kb that can be received by remote clients and AWIPS/Linux systems, which will decompress and decode the products so they can be displayed on the AWIPS/Linux system.


AWIPS/FX-Advanced at the Aviation Weather Center

The Convective SIGMET generation tool (Cgen), a forecaster productivity tool developed by the branch, was tested in an operational environment at AWC. Real-time displays of Convective SIGMET forecasts can be viewed at Website http://aviationweather.gov/ (Figure 52). Cgen allows forecasters to graphically bind convective areas of airspace, assign attributes such as height, movement, and intensity to these areas, and add observed and predicted weather phenomena (wind gust, hail, and tornadoes). This information can be incorporated into a weather statement bulletin and transmitted to the National Centers of Environmental Prediction (NCEP) for dissemination to end users. The Cgen tool is designed to output the graphical and textual information, according to standards outlined in Weather Service Operations Manual 91-7, and to verify that all output fits these specifications or alerts users of any output problems so that they can be corrected. AWIPS/FX-Advanced was upgraded to handle real-time displays of the National Convective Weather Forecast (NCWF) product (developed at NCAR), aircraft location data, and pilot reports.

AD - Convective SIGMET Forecasts Displays

Aviation Digital Data Service

Displays and Java applets were standardized so that the ADDS is more appealing and easier to use. Load and display time speeds of the Java applets were addressed. A process/product monitor was implemented at AWC to help in moving operational support to AWC. An AWIPS/Linux system was set up and modified to handle the creation of all automated JPEG satellite images.

Advanced Traffic Management System

The branch developed Northern Hemisphere Jet Stream and Winds Aloft products for dissemination on the Volpe center's ATMS system. The product uses high-resolution RUC data and AVN data in the creation of the products.

FAA Traffic Management Units

The branch is building and deploying client and server FX-Connect systems for the Dallas/Fort Worth CWSU, Dallas/Fort Worth WFO, and the AWC. These systems will be deployed and operational in the early part of 2001.

WorldWide Weather Workstation

An AWIPS/Linux system was used to prove that the W4 concept can work. In collaboration with the International Division, the branch successfully sent and received compressed gridded AVN datasets which were then displayed on the AWIPS system. An AWIPS/Linux system was set up with a Colombian localization that was used at the American Meteorological Society Annual Conference to demonstrate W4 concepts.


AWIPS/FX-Advanced at the Aviation Weather Center

The branch will continue to increase the amount of aviation data that are available to the aviation forecasters at the AWC. Work will continue with the Product Development Teams (PDTs) of the Aviation Weather Research Program to incorporate their datasets into the AWIPS framework and make them available to the forecasters. The National Convective Weather Forecast will be incorporated into the Convective SIGMET tool as a first guess field for the next hour's Convective SIGMET product.

Aviation Digital Data Service

Staff will continue refining aspects of the ADDS and adding new features. A proof of concept will be demonstrated for pilots and Flight Service Stations (FSSs). This will mark the first time that pilots can simultaneously view and discuss a weather briefing for their flight with FSS personnel. The branch will also add the ability for the ADDS system to ingest "PILOT" reports from pilots carrying palm pilots. Java applets will be enhanced to give global coverage for aviation impact variables (AIVs).

Advanced Traffic Management System Project

The Northern Hemisphere Jet Stream and Winds Aloft products will become operational on the Enhanced Traffic Management System (ETMS) at the Volpe center in early 2001. Staff will work to incorporate the 40-km version of the Rapid Update Cycle (RUC) at the Volpe center as part of the Northern Hemisphere product set, to replace the 80-km RUC Family of Services version on the Eta domain. Volpe staff have expressed an interest to add the Canadian Eta grid to their Northern Hemisphere winds aloft product. The branch is also planning to work with the Volpe center in adding the National Convective Forecast Weather product developed by NCAR to the ATMS/ETMS data streams.

FAA Traffic Management Units

Working with the Modernization Division, branch staff will enhance the FX-Connect system so that NCWF data can be displayed and used by forecasters in developing Terminal Area, Gate Area, and Center Area forecasts. Once products have been identified for these three areas, work will begin on automating the creation of the products. Additional PDT products will be added to the system, as well as AIV products and aviation background maps.

WorldWide Weather Workstation

The branch will work with the International Division as required to create localizations and set up AWIPS/Linux for delivery at remote sites.

Advanced Computing Branch
Thomas B. Henderson, Chief


The main objective of the Advanced Computing Branch is to advance the future production of high-resolution analysis and forecast systems through research and development in high-performance computing. This is accomplished in part by porting numerical geophysical models from FSL, the National Centers for Environmental Prediction (NCEP), and other organizations to high-performance computing architectures. These new state-of-the-art architectures, typically composed of commodity off-the-shelf components, offer a less costly alternative to traditional computers for the fast, efficient production of numerical forecasts.

In pursuit of their goals, branch scientists have developed a high-level directive-based parallelization tool called the Scalable Modeling System (SMS). Traditional serial Fortran programs are parallelized by adding SMS directives, in the form of Fortran comments, to the serial Fortran source code. The source code translation component of SMS is then used to automatically transform code to parallel form, inserting calls to SMS subroutines that perform interprocess communication and other parallel operations as needed.

The SMS subroutines form a software layer between the prediction model's source code and Message Passing Interface (MPI), the industry standard for interprocessor communication. This layered approach provides SMS users with ease of use and minimal impact to their code, portability, and high performance. Source codes that include SMS directives are fully portable to a large subset of existing high-performance computers, Unix workstations, and symmetric multiprocessors (SMPs). SMS provides high-performance scalable I/O and supports both native and portable file formats. Also, data ordering in files is independent of the number of processors used. Further, since parallel operations are implemented as a layered set of routines, machine-dependent optimizations can be made inside SMS without impacting the model source code. User-specified optimizations are also possible; for example, the execution of redundant computations to avoid time-consuming interprocessor communication will reduce run times in some cases.

SMS also provides tools to assist in testing and debugging parallel programs. Several weather and ocean analysis and prediction models have been parallelized using SMS, including FSL's Quasi-nonhydrostatic (QNH) model, FSL's Rapid Update Cycle (RUC), FSL's Local Analysis and Prediction System (LAPS), Rutgers University/UCLA's Regional Ocean Modeling System (ROMS), Central Weather Bureau's Typhoon Forecast System (TFS) in Taiwan, and NCEP's Eta. Computer architectures supported by the SMS include the IBM SP2, Cray T3E, SGI Origin 2000, Fujitsu VPP, Sun E10000, H-P Exemplar, Linux clusters (both Intel and Compaq Alpha based) with Myrinet, and other Unix workstations and SMPS.


The branch continued development and enhancement of the functionality and portability of the SMS. The most significant newly developed features are run-time debugging tools, support for nested models, and support for commonly used Fortran90 syntax such as dynamic memory allocation. New documentation was written: the SMS User's Guide, the SMS Reference Manual, and an overview white paper.

In collaboration with FSL personnel outside the branch and with other institutions, the branch continued efforts on the development of the I/O API for the Weather Research and Forecast (WRF) model. Working closely with NCAR and others, the initial version of the model's I/O API was implemented and released with the first WRF prototype.

During the last year, much progress was made on parallelization efforts, as follows:

  • Parallelization of a singly nested version of the TFS model for the Taiwan Central Weather Bureau.
  • Parallelization of portions of the LAPS model.
  • Parallelization of the Regional Ocean Modeling System (ROMS) to support Pacific Marine Environmental Laboratory (PMEL).
  • Parallelization of NCEP's Eta model using SMS and comparison o fperformance with NCEP's hand-parallelized version. Performance was identical, but the SMS version is much easier to maintain, test, port, and upgrade.

Other activities included continued support for the parallelized RUC and QNH models, as needed. Assistance was provided to users of the High-Performance Computing System at FSL. The branch also continued its support of the HPCS management team with planning and guidance regarding hardware and software upgrades.


Branch plans during Fiscal Year 2001 include:

  • Continue to develop and enhance SMS.
  • Complete parallelization of the fully-nested version of the Typhoon Forecast System (TFS) for the Taiwan CWB.
  • Parallelize an atmospheric chemistry code for the Aeronomy Laboratory.
  • Parallelize an ocean model for the Environmental Technology Laboratory.
  • Continue to participate in the design and implementation of the WRF model.
  • Continue to support users of SMS and of FSL's High-Performance Computing System.
  • Provide SMS user training.
  • Publish results in conference proceedings and journals.
  • Support acceptance testing and integration of HPCS upgrade.

FSL Staff FSL in Review (Other Years) FSL Forum Publications