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您的检索式：作者名="David RAYNER"
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| 1 | The Influence of Large-Scale Circulation on the Summer Hydrological Cycle in the Haihe River Basin of China显示文摘In this study, we focus on changes in three important components of the hydrological-cycle in the Haihe River basin (HRB) during 1957-2005: precipitation (Prep), actual evaportranspiration (ETa), and pan evaporation (PE)-a measure of potential evaporation. The changes in these components have been evaluated in relation to changes in the East Asian summer monsoon. Summer Prep for the whole basin has decreased significantly during 1957-2005. Recent weakening of the convergence of the integrated water vapor flux, in combination with a change from cyclonic-like large-scale circulation conditions to anti-cyclonic-like conditions, led to the decrease in the summer Prep in the HRB. ETa is positively correlated with Prep on the interannual timescale. On longer timescales, however, ETa is less dependent on Prep or the large-scale circulation. We found negative trends in ETa when the ERA40 reanalysis data were used, but positive trends in ETa when the NCEP/NCAR reanalysis data were used. PE declined during the period 1957-2001. The declining of PE could be explained by a combination of declining solar radiation and declining surface wind. However, the declining solar radiation may itself be related to the weakening winds, due to weaker dispersion of pollution. If so, the downward trend of PE may be mainly caused by weakening winds. | OU Tinghai LIU Yanxiang CHEN Deliang David RAYNER ZHANG Qiang GAO Ge XIANG Weiguo | 2011 | Acta meteorologica Sinica2011，25，4： | 1 |
| 2 | Gastric Emptying, Incretin Hormone Secretion, and Postprandial Glycemia in Cystic Fibrosis—Effects of Pancreatic Enzyme Supplementation显示文摘 | Paul Kuo Julie E. Stevens Antonietta Russo Anne Maddox Judith M. Wishart Karen L. Jones Hugh Greville David Hetzel Ian Chapman Michael Horowitz Christopher K. Rayner | 2011 | The Journal of Clinical Endocrinology & Metabolism2011，，5： | 1 |
| 3 | The impact of rheumatoid arthritis on quality-of-life assessed using the SF-36: A systematic review and meta-analysis显示文摘 | Faith Matcham Ian C. Scott Lauren Rayner Matthew Hotopf Gabrielle H. Kingsley Sam Norton David L. Scott Sophia Steer | 2014 | Seminars in Arthritis and Rheumatism2014，，： | 1 |
| 4 | A multi-state weather generator for daily precipitation for the Torne River basin, northern Sweden/western Finland显示文摘This paper describes a new weather generator e the 10-state empirical model e that combines a 10-state, first-order Markov chain with a non-parametric precipitation amounts model. Using a doubly-stochastic transition-matrix results in a weather generator for which the overall precipitation distribution(including both wet and dry days) and the temporal-correlation can be modified independently for climate change studies. This paper assesses the ability of the 10-state empirical model to simulate daily area-average precipitation in the Torne River catchment in northern Sweden/western Finland in the context of 3 other models: a 10-state model with a parametric(Gamma) amounts model; a wet/dry chain with the empirical amounts model; and a wet/dry chain with the parametric amounts model. The ability to accurately simulate the distribution of multi-day precipitation in the catchment is the primary consideration.Results showed that the 10-state empirical model represented accumulated 2- to 14-day precipitation most realistically. Further, the distribution of precipitation on wet days in the catchment is related to the placement of a wet day within a wet-spell, and the 10-state models represented this realistically, while the wet/dry models did not. Although all four models accurately reproduced the annual and monthly averages in the training data, all models underestimated inter-annual and inter-seasonal variance. Even so, the 10-state empirical model performed best.We conclude that the multi-state model is a promising candidate for hydrological applications, as it simulates multi-day precipitation well, but that further development is required to improve the simulation of interannual variation. | David RAYNER Christine ACHBERGER Deliang CHEN | 2016 | Advances in Climate Change Research2016，7，1： | 0 |
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