46 resultados para virtual worlds working group
Filtro por publicador
- JISC Information Environment Repository (3)
- Repository Napier (2)
- Aberdeen University (1)
- Abertay Research Collections - Abertay University’s repository (2)
- Aberystwyth University Repository - Reino Unido (2)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (7)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (4)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (2)
- Applied Math and Science Education Repository - Washington - USA (4)
- Aquatic Commons (127)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (8)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (9)
- Archive of European Integration (34)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (4)
- Aston University Research Archive (1)
- Biblioteca Digital da Câmara dos Deputados (1)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (6)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (95)
- Boston University Digital Common (1)
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- Bulgarian Digital Mathematics Library at IMI-BAS (1)
- Cambridge University Engineering Department Publications Database (3)
- CentAUR: Central Archive University of Reading - UK (46)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (84)
- CORA - Cork Open Research Archive - University College Cork - Ireland (2)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (1)
- Dalarna University College Electronic Archive (3)
- Deakin Research Online - Australia (83)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (3)
- Digital Commons at Florida International University (2)
- Digital Peer Publishing (3)
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- DigitalCommons@University of Nebraska - Lincoln (1)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (1)
- Duke University (5)
- Earth Simulator Research Results Repository (2)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (2)
- Greenwich Academic Literature Archive - UK (1)
- Helda - Digital Repository of University of Helsinki (5)
- Indian Institute of Science - Bangalore - Índia (10)
- Institute of Public Health in Ireland, Ireland (1)
- Instituto Politécnico de Santarém (1)
- Instituto Politécnico do Porto, Portugal (1)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
- Massachusetts Institute of Technology (1)
- Memoria Académica - FaHCE, UNLP - Argentina (3)
- Ministerio de Cultura, Spain (1)
- National Center for Biotechnology Information - NCBI (2)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (4)
- Portal de Revistas Científicas Complutenses - Espanha (6)
- Publishing Network for Geoscientific & Environmental Data (8)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (56)
- Queensland University of Technology - ePrints Archive (125)
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- Repositório Científico do Instituto Politécnico de Santarém - Portugal (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (8)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (28)
- Research Open Access Repository of the University of East London. (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Universidad de Alicante (2)
- Universidad del Rosario, Colombia (29)
- Universidad Politécnica de Madrid (26)
- Universidade Federal do Pará (3)
- Universitat de Girona, Spain (3)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
- Université de Lausanne, Switzerland (14)
- Université de Montréal, Canada (6)
- University of Connecticut - USA (1)
- University of Michigan (20)
- University of Queensland eSpace - Australia (4)
- University of Southampton, United Kingdom (3)
- WestminsterResearch - UK (1)
- Worcester Research and Publications - Worcester Research and Publications - UK (8)
Resumo:
A recent intercomparison exercise proposed by the Working Group for Numerical Experimentation (WGNE) revealed that the parameterized, or unresolved, surface stress in weather forecast models is highly model-dependent, especially over orography. Models of comparable resolution differ over land by as much as 20% in zonal mean total subgrid surface stress (Ttot). The way Ttot is partitioned between the different parameterizations is also model-dependent. In this study, we simulated in a particular model an increase in Ttot comparable with the spread found in the WGNE intercomparison. This increase was simulated in two ways, namely by increasing independently the contributions to Ttot of the turbulent orographic form drag scheme (TOFD) and of the orographic low-level blocking scheme (BLOCK). Increasing the parameterized orographic drag leads to significant changes in surface pressure, zonal wind and temperature in the Northern Hemisphere during winter both in 10 day weather forecasts and in seasonal integrations. However, the magnitude of these changes in circulation strongly depends on which scheme is modified. In 10 day forecasts, stronger changes are found when the TOFD stress is increased, while on seasonal time scales the effects are of comparable magnitude, although different in detail. At these time scales, the BLOCK scheme affects the lower stratosphere winds through changes in the resolved planetary waves which are associated with surface impacts, while the TOFD effects are mostly limited to the lower troposphere. The partitioning of Ttot between the two schemes appears to play an important role at all time scales.