نتایج جستجو برای: giss e
تعداد نتایج: 1017337 فیلتر نتایج به سال:
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در این تحقیق با استفاده از داده های ماهانة حاصل از محاسبة ضرایب مربوط به دما و بارش نقاط شبکه در مختصات ایستگاه تبریز و داده های ماهانة دما و بارش ایستگاه هواشناسی تبریز در یک دورة آماری 53 ساله از سال1951 تا 2003 اثرات دو برابر شدن میزان جو بر دما و بارش به عنوان مهم ترین عناصر اقلیمی شبیه سازی شده است. مدل های هایترگراف و آمبروترمیک ترسیمی برای تبریز مبین تغییرات ماهانة عناصر اقلیمی دما و بار...
[1] We explore the dependency of general circulation model tracer transports on model physics and horizontal and vertical resolution. We use NASA Goddard Institute for Space Studies (GISS) Model E at 4 5 with 20 and 23 layers and the GISS Global Climate Middle Atmosphere Model 3 at 4 5 with 23 and 53 layers and at 2 2.5 with 53 and 102 layers. The online tracers employed are CO2, CH4, N2O, CFC-...
Natural language interface to spatial databases have not received a lot of attention in computational linguistics, in spite of the potential value of such systems for users of Geographical Information Systems (GISs). This paper presents a controlled language for GIS queries, solves some of the semantic problems for spatial inference in this language, and introduces a system that implements this...
Sensitivity studies of oxidative changes in the troposphere in 2100 using the GISS GCM J. L. Grenfell , D. T. Shindell, and V. Grewe 3 NASA Goddard Institute for Space Studies and Center for Climate Systems Research, Columbia University, New York, USA Present address: Stratosphärengruppe, Institut für Meteorologie, Freie Universität Berlin, Germany Present address: DLR-Institut für Physik der A...
Other Scientific Contributors: C. Ao, B. Drouin, D. Feng, R. Frehlich, C. Groppi, G. Hajj, B. Herman, J. Joiner, Y.-H. Kuo ,S. Leroy, S. Limaye, M. Lohmann , J. Lyons, A. Mannucci, G. North, H. Pickett, W. Randel, D. Rind, C. Rocken, Y. Serra, S. Sokolovskiy, S. Syndergaard, M. de la Torre Juarez, C. Walker, D. Ward JPL, University of Arizona, NCAR, GSFC, Harvard, University of Wisconsin, NOAA/...
As part of the Intercomparison of Radiation Codes in Climate Models (ICRCCM) project, careful comparisons of the performance of a large number of radiation codes were carried out, and the results compared with those of benchmark calculations. In this paper, we document the performance of a number of parameterized models which have been heavily used in climate and numerical prediction research a...
Database query languages are commonly used as a tool to retrieve data of interest from databases. Although some query languages provide basic functions useful for statistical data analysis and others contain spatial query capabilities, there is as yet no query language which satisfies even basic requirements of spatial analysis. By including a set of fundamental spatial operators into the query...
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