Download or read book An Open ocean Marine Fog Development and Forecast Model for Ocean Weather Station Papa written by Robert Louis Clark and published by . This book was released on 1981 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine fog forecasts during the summer period in the North Pacific are not made presently with any acceptable degree of accuracy. Objective fog development models exist and are used with some success for localized coastal regions of the western U.S.; scarcity of accurate data has hindered creation of a reliable open-ocean model. The Eulerian single-station approach, utilizing a segment of the complete accurate data of Ocean Weather Station Papa (50N, 145W) is applied in this study to an objective marine fog forecasting model. The time-series study of significant atmospheric variables at OWS Papa, when coupled with a chronological synoptic overview, delineates accurately fog/no fog sequences in the summer months of 1973 and 1977. Actual observed fog situations are evaluated by the general model and presented in relation to open-ocean fog indices, NOAA 5 satellite coverage and synoptic history. The open-ocean forecast model is tested on an independent data set for the month of July 1975 at OWS Papa, with favorable results. The research delineates four required indices that must all be positive to forecast fog. These indices, when plotted daily in the region of OWS Papa allow a single station to predict, with some confidence out to twenty-four hours, the occurrence of advection fog. (Author).
Download or read book Open ocean Marine Fog Development and Forecast Model for Ocean Weather Station Papa written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book NAVENVPREDRSCHFAC Contractor Report CR written by and published by . This book was released on 1989 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States and Canada written by Wade H. Shafer and published by Springer. This book was released on 1984-02-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series lists applicable thesis titles published in the United States and Canada. Volume 40 covers thesis year 1995. All back volumes are still available.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1984-03 with total page 1534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1982 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1982 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Ocean Modeling Framework on NOAA s High Performance Computer COMF HPC written by Aijun Zhang and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Coastal Ocean Modeling Framework for NOAA’s High Performance Computer (COMFHPC) is an end-to-end set of common tools for the NOAA National Ocean Service’s (NOS) operational three-dimensional hydrodynamic model-based coastal ocean forecast systems. These forecast systems, in general, are jointly developed by the Center for Operational Oceanographic Products and Services (CO-OPS) and the Coast Survey Development Laboratory (CSDL) of the Office of Coast Survey (OCS) of the National Ocean Service, and implemented and run on NOAA’s High Performance Computers operated by the National Weather Service’s (NWS) National Centers for Environmental Prediction’s (NCEP) Central Operations (NCO). The COMF-HPC consists of a set of standards and a comprehensive software infrastructure which is shared by all NOS’ hydrodynamic-model operational forecast systems used to generate all input files, such as meteorological forcing, lateral open boundary forcing, river forcing, and model runtime control files, etc. required to run a NOS Operational Forecast System (OFS) which are based on hydrodynamic models. The use of COMF-HPC by all NOS operational forecast systems will allow a multiplicity of forecast systems to be operated and maintained in an efficient and robust manner. COMF-HPC will help to ensure a high time-and-cost efficiency for OFS development, transition, and operational maintenance. This document is organized as follows. Section 1 introduces the background of the COMF-HPC, including its development history, infrastructure, and data flows and the logics of the OFS execution. Section 2 describes the data sets and static files involved in the COMF-HPC system. Section 3 describes the three main control files in the COMF-HPC system. Section 4 explains script and FORTRAN programs in COMF-HPC. Section 5 describes processes to implement an operational forecast system under COMF-HPC environment. Section 6 describes key immediate and final OFS output files residing in the OFS work directory. Section 7 describes the archive of the OFS outputs. Section 8 is a general instruction to diagnose and fix common failures occurred during execution of an operational forecast system. COMF-HPC was originally developed and implemented on the High-Performance Computing Systems of Central Computer System (CCS). On 25 July 2013, NOAA transitioned all NCEP operated Production Suite including NOS OFSs to the new Weather & Climate Operational Supercomputing System (WCOSS), named Tide and Gyer. Therefore, COMF-HPC was transitioned to WCOSS operating system environment as well. The major changes are using FORTRAN compiler, otherwise, there are no significant differences of COMF-HPC on CCS and WCOSS"--Executive Summary.
Download or read book Development of a Regional Coastal and Open Ocean Forecast System written by Allan R. Robinson and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Model Analysis and Prediction System written by Keith A. Day and published by . This book was released on 2012 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing a Relocatable Coastal Ocean Forecast Model written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for accurate prediction of the coastal ocean environment conceivably extends to the entire world's coastline. Since not all regions are of sufficient economic and sociological importance to justify operational modeling on a continuous basis, it is necessary to have available an alternative approach for short term on demand forecasting. Such prediction may be in response to a man made catastrophe or natural disaster. It may also be useful for coastal management in both developing and developed countries. Developing a coastal ocean forecast system is a complex effort that entails data processing as well as numerical modeling. In order to evaluate the coastal hydrodynamic model, which is the kernel of the forecast system, it is necessary to acquire a wide range of oceanographic data in different environments. Comparing model predictions to such field observations will permit the determination of the usefulness of the model tor real time applications. This paper summarizes some of the data processing methods being incorporated into a prototype relocatable forecast system. As an example of the utility of the model, it is compared to observations of temperature from the inner continental shelf of southern California.
Download or read book Oceanobs 19 An Ocean of Opportunity Volume III written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Development Implementation and Evaluation of a Data Assimilative Ocean Forecasting System Off the Central California Coast written by and published by . This book was released on 2009 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and implementation of a real-time ocean forecast system based on the Regional Ocean Modeling System (ROMS) off the coast of central California are described. The ROMS configuration consists of three nested modeling domains with increasing spatial resolutions: the US West coastal ocean at 15-km resolution, the central California coastal ocean at 5 km, and the Monterey Bay region at 1.5km. All three nested models have 32 vertical sigma (or terrain-following) layers and were integrated in conjunction with a three-dimensional variational data assimilation algorithm (3DVAR) to produce snapshots of the ocean state every 6 h (the reanalysis) and 48-h forecasts once a day. This ROMS forecast system was operated in real time during the field experiment known as the Autonomous Ocean Sampling Network (AOSN-II) in August 2003. After the field experiment, a number of improvements were made to the ROMS forecast system: more data were added in the reanalysis with more careful quality control procedures, improvements were made in the data assimilation scheme, as well as model surface and side boundary conditions. The results from the ROMS reanalysis are presented here. The ROMS reanalysis is first compared with the assimilated data as a consistency check. An evaluation of the ROMS reanalysis against the independent measurements that are not assimilated into the model is then presented. This evaluation shows the mean differences in temperature and salinity between reanalysis and observations to be less than 1 deg C and 0.2 psu (practical salinity unit), respectively, with root-mean-square (RMS) differences of less than 1.5 deg C and 0.25 psu. Qualitative agreement is found between independent current measurements and the ROMS reanalysis. The agreement is particularly good for the vertically integrated current along the offshore glider tracks: the ROMS reanalysis can realistically reproduce the poleward California Undercurrent.
Download or read book Global and Basin Scale Ocean Modeling and Prediction written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This DoD HPC Challenge project is part of a coordinated 6.1-6.4 effort on the "Grand Challenge" problem of eddy-resolving global and basin-scale ocean modeling and prediction. This project is work towards the ultimate goal of a data assimilative 1/32 deg global ocean nowcast/forecast system including the associated basic research and exploratory development. The interim goal by 2001 is the transition of a 1/8 deg global system with embedded 1/16 deg Pacific north of 20 deg S and 1/32 deg subtropical Atlantic (9-51 deg N) including the Caribbean and Gulf of Mexico. A data assimilative 1/4 deg global system was transitioned to Fleet Numerical Meteorology and Oceanography Center (FNMOC) for operational evaluation early in FY98 and the 1/16 deg Pacific system is scheduled for transition by the end of FY99. A two pronged approach is used in this DoD Challenge effort. The first is ocean nowcast experiments with data assimilation and ocean forecasting experiments initialized from the experiments with data assimilation, 1/16 deg Pacific in FY98-99 and 1/32 deg subtropical Atlantic in FY00. The second prong is "first of a kind" ocean model simulations at the next higher resolution, 1/16 deg global (completed under an FY97 DoD HPC Challenge project), 1/32 deg Pacific north of 20 deg S and 1/64 deg subtropical Atlantic in FY98-99 (currently underway in an FY98-00 DoD HPC Challenge project) and 1/32 deg global in FY00, the ultimate target resolution for a global nowcast/forecast system. These simulations provide information on the value added of increased resolution and input on tradeoffs between increased resolution and model modifications which make it more expensive to run. Research topics include ocean dynamics, model development and portability to different computer architectures, ocean simulation, model validation, data assimilation, ocean nowcasting and forecasting, observing system simulation, and applications of naval interest.
Download or read book Guide to the Applications of Marine Climatology written by and published by Secretariat to World Meteorological Organization. This book was released on 1994 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
