Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 5 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-16 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed description of the numerical formulation of Version 2 of the ARIES/GEOS 'dynamical core' is presented. This code is a nearly 'plug-compatible' dynamics for use in atmospheric general circulation models (GCMs). It is a finite difference model on a staggered latitude-longitude C-grid. It uses second-order differences for all terms except the advection of vorticity by the rotation part of the flow, which is done at fourth-order accuracy. This dynamical core is currently being used in the climate (ARIES) and data assimilation (GEOS) GCMs at Goddard. Suarez, Max J. (Editor) and Takacs, Lawrence L. Goddard Space Flight Center...
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 5 Documentation of the AIRES GEOS Dynamical Core Version 2 written by and published by . This book was released on 1995 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-16 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: High order horizontal diffusion of the form K Delta(exp 2m) is widely used in spectral models as a means of preventing energy accumulation at the shortest resolved scales. In the spectral context, an implicit formation of such diffusion is trivial to implement. The present note describes an efficient method of implementing implicit high order diffusion in global finite difference models. The method expresses the high order diffusion equation as a sequence of equations involving Delta(exp 2). The solution is obtained by combining fast Fourier transforms in longitude with a finite difference solver for the second order ordinary differential equation in latitude. The implicit diffusion routine is suitable for use in any finite difference global model that uses a regular latitude/longitude grid. The absence of a restriction on the timestep makes it particularly suitable for use in semi-Lagrangian models. The scale selectivity of the high order diffusion gives it an advantage over the uncentering method that has been used to control computational noise in two-time-level semi-Lagrangian models. Li, Yong and Moorthi, S. and Bates, J. Ray and Suarez, Max J. Goddard Space Flight Center...
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 7 Proceedings of the Workshop on the GEOS 1 Five year Assimilation written by and published by . This book was released on 1995 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 10 Dynamical Aspects of Climate Simulations Using the GEOS General Circulation Model written by and published by . This book was released on 1996 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 3 An Efficient Thermal Infrared Radiation Parameterization for Use in General Circulation Models written by and published by . This book was released on 1994 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 4 Documentation of the Goddard Earth Observing System GEOS Data Assimilation System Version 1 written by and published by . This book was released on 1995 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report Series on Global Modeling and Data Assimilation written by and published by . This book was released on 1998 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Technical Report Series on Global Modeling and Data Assimilation Volume 20 The Climate of the Fvccm 3 Model written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes the climate of version 1 of the NASA-NCAR model developed at the Data Assimilation Office (DAO). The model consists of a new finite-volume dynamical core and an implementation of the NCAR climate community model (CCM-3) physical parameterizations. The version of the model examined here was integrated at a resolution of 2 degrees latitude by 2.5 degrees longitude and 32 levels. The results are based on assimilation that was forced with observed sea surface temperature and sea ice for the period 1979-1995, and are compared with NCEP/NCAR reanalyses and various other observational data sets. The results include an assessment of seasonal means, subseasonal transients including the Madden Julian Oscillation, and interannual variability. The quantities include zonal and meridional winds, temperature, specific humidity, geopotential height, stream function, velocity potential, precipitation, sea level pressure, and cloud radiative forcing. Suarez, Max J. (Editor) and Chang, Yehui and Schubert, Siegfried D. and Lin, Shian-Jiann and Nebuda, Sharon and Shen, Bo-Wen Goddard Space Flight Center
Download or read book Technical Report Series on Global Modeling and Data Assimilation written by Max J. Suarez and published by BiblioGov. This book was released on 2013-08 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes the climate of version 1 of the NASA-NCAR model developed at the Data Assimilation Office (DAO). The model consists of a new finite-volume dynamical core and an implementation of the NCAR climate community model (CCM-3) physical parameterizations. The version of the model examined here was integrated at a resolution of 2 degrees latitude by 2.5 degrees longitude and 32 levels. The results are based on assimilation that was forced with observed sea surface temperature and sea ice for the period 1979-1995, and are compared with NCEP/NCAR reanalyses and various other observational data sets. The results include an assessment of seasonal means, subseasonal transients including the Madden Julian Oscillation, and interannual variability. The quantities include zonal and meridional winds, temperature, specific humidity, geopotential height, stream function, velocity potential, precipitation, sea level pressure, and cloud radiative forcing.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1995 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Technical Report Series on Global Modeling and Data Assimilation written by and published by . This book was released on 2002 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unraveling Mechanisms Underlying Annual Plankton Blooms in the North Atlantic and Their Implications for Biogenic Aerosol Properties and Cloud Formation written by Kristina Dee Anne Mojica and published by Frontiers Media SA. This book was released on 2021-11-23 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1995 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
