http://hdl.handle.net/2261/44134 2013-06-20T06:03:05Z http://hdl.handle.net/2261/51500 タイトル: Validation of JMANHM+HUCM through comparisons with satellite and aircraft observation in DYCOMS-II period 著者: Sato, Yousuke; Nakajima, Teruyuki; Suzuki, Kentaroh; Jensen, Jørgen B.; Nakajima, Takashi Y.; Takenaka, Hideaki 抄録: Comparisons of microphysical properties of low clouds (e.g. marine stratocumulus (Sc)) simulated by a spectral bin microphysics (SBM) model with those obtained from observations are conducted off the coast of California at DYCOMS-II (Second Dynamics and Chemistry of Marine Stratocumulus) period. We use various types of data (i.e. not only observation data from aircraft but also data retrieved from satellite) for the comparison. Three-dimensional one way nesting simulation with SBM model is conducted. Comprehensive Analysis Program for Cloud Optical Measurements (CAPCOM) retrieval algorithm is used to derive cloud microphysical and optical properties from GOES (Geostationary Operational Environment Satellite) satellite. Aircraft data obtained by C-130 aircraft during the period is also used. The comparisons show that the cloud optical thickness simulated by the SBM model is much smaller than that retrieved from satellite. The model also underestimates cloud droplet number concentration and liquid water content compared to aircraft observations. More detailed analysis shows that relative humidity (i.e. super saturations) are smaller in the model than those observed because of weaker updraft velocity in the model, which causes smaller number concentration through less active nucleation process. Sensitivity experiments of changing grid resolution show that lower resolution (dx=300m) causes the weaker updraft velocity, thus suggesting the necessity of higher resolution to reproduce the microphysical and optical properties of marine Sc. 内容記述: The XXV IUGG General Assembly : Earth on the Edge: Science for a Sustainable Planet, 28 June - 7 July 2011, Melbourne Convention & Exhibition Centre, Melbourne, Australia 2011-06-29T00:00:00Z http://hdl.handle.net/2261/51291 タイトル: Comparative Concepts 著者: Dietz, Richard 抄録: Comparative concepts (such as 'greener than'or 'higher than') are fundamental to our grasp of associated categorical concepts ('green', 'high', respectively). Some comparative concepts seem natural, whereas other ones seem rather gerrymandered---e.g., compare 'x is greener than y'and 'x and y are such that either (i) x and y are inspected before midday and x is greener than y, or (ii) x and y are inspected after midday and x is bluer than y'. What kind of cognitive structures under your ability to order objects? And why do we order objects the way we do, and not in other ways? The aim of this talk is to outline an account of comparative concepts within a conceptual spaces framework. The account bears for one on the account of naturalness for comparative concepts. For another, it bears on the theory of gradable concepts, i.e., the type of categorical concepts expressed by gradable terms in natural language. The approach is novel in that it carries some basic assumptions from Peter Gärdenfors'conceptual spaces account of categorical concepts over to comparative concepts (in his monograph 'Conceptual Spaces'[2000]). The offered approach is more general both (i) in that it supplies a framework for motivating various types of categorisation rules for gradable concepts, and (ii) in that it gives a model that subsumes ungraded categorisation as a limiting case. 内容記述: The second 「論数哲」(PhilLogMath) workshop, 14 March 2012, Seiryo Kaikan, Tokyo 2012-03-14T00:00:00Z http://hdl.handle.net/2261/51266 タイトル: A study of the microphysical mechanism for correlation patterns between droplet radius and optical thickness of warm clouds off the coast of California as simulated by a downscaling spectral bin microphysical model 著者: Sato, Yousuke; Nakajima, Teruyuki; Suzuki, Kentaroh; Iguchi, Takamichi; Choi, In-Jin 内容記述: Y. Sato, T. Nakajima, K. Suzuki, T. Iguchi and C. In-Jin (2010), A study of the microphysical mechanism for correlation patterns between droplet radius and optical thickness of warm clouds off the coast of California as simulated by a downscaling spectral bin microphysical model, Abstract A21C-0101 presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec. 2010-12-01T00:00:00Z http://hdl.handle.net/2261/44136 タイトル: Teaching Technical Terminology and Practical English Skills using the SNOWBALLS® e-Learning Platform 著者: Morimura, Kumiko; Entzinger, Jorg O.; Suzuki, Shinji 内容記述: ACM Conference on eLearning and Technical Documentation for the Developing World, 30-31 Oct. 2010, Aizu-Wakamatsu City, Fukushima, Japan; ACM Professional Chapter on Elearning and Technical Communication Conference 2010 2010-01-01T00:00:00Z