1,721,032 research outputs found
Reinterpreting the thermocline feedback in the western-central equatorial Pacific and its relationship with the ENSO modulation
No full textISI Document Delivery No.: 194GQ Times Cited: 0 Cited Reference Count: 52 Cited References: An SI, 2009, THEOR APPL CLIMATOL, V97, P29, DOI 10.1007/s00704-008-0071-z An SI, 2008, J CLIMATE, V21, P3, DOI 10.1175/2007JCLI1500.1 An S-I, 2000, GEOPHYS RES LETT, V27, P1573 An SI, 2001, J CLIMATE, V14, P3421, DOI 10.1175/1520-0442(2001)0142.0.CO;2 An SI, 2000, J CLIMATE, V13, P2044, DOI 10.1175/1520-0442(2000)0132.0.CO;2 Ashok K, 2007, J GEOPHYS RES-OCEANS, V112, DOI 10.1029/2006JC003798 Belmadani A, 2010, J CLIMATE, V23, P3181, DOI 10.1175/2010JCLI2830.1 Boyer TP, 2002, NOAA ATLAS NESDIS 43, V2 Choi J, 2012, CLIM DYNAM, V38, P2631, DOI 10.1007/s00382-011-1186-y Choi J, 2011, CLIM DYNAM, V37, P1205, DOI 10.1007/s00382-010-0912-1 Clarke AJ, 2010, J PHYS OCEANOGR, V40, P121, DOI 10.1175/2009JPO4263.1 Collins M, 2010, NAT GEOSCI, V3, P391, DOI 10.1038/NGEO868 Compo GP, 2006, B AM METEOROL SOC, V87, P175, DOI 10.1175/BAMS-87-2-175 Delworth TL, 2006, J CLIMATOL, V19, P634 Dewitte B, 2007, J CLIMATE, V20, P2002, DOI 10.1175/JCL14110.1 Dewitte B, 2012, CLIM DYNAM, V38, P2275, DOI 10.1007/s00382-011-1215-x Dewitte B, 1999, J PHYS OCEANOGR, V29, P1542, DOI 10.1175/1520-0485(1999)0292.0.CO;2 Dewitte B., 2000, Journal of Climate, V13, DOI 10.1175/1520-0442(2000)0132.0.CO;2 Dewitte B, 2009, J CLIMATE, V22, P5783, DOI 10.1175/2009JCLI2764.1 DiNezio PN, 2009, J CLIMATE, V22, P4873, DOI 10.1175/2009JCLI2982.1 Fedorov AV, 2001, J CLIMATE, V14, P3086, DOI 10.1175/1520-0442(2001)0142.0.CO;2 Giese BS, 2011, J GEOPHYS RES-OCEANS, V116, DOI 10.1029/2010JC006695 Gill A., 1982, ATMOSPHERE OCEAN DYN Gnanadesikan, 2006, J CLIMATE, V19, P675 Griffies SM, 2005, OCEAN SCI, V1, P45 HIRST AC, 1986, J ATMOS SCI, V43, P606, DOI 10.1175/1520-0469(1986)0432.0.CO;2 Jin FF, 2003, GEOPHYS RES LETT, V30, DOI 10.1029/2002GL016356 JIN FF, 1993, J ATMOS SCI, V50, P3477, DOI 10.1175/1520-0469(1993)0502.0.CO;2 Kao HY, 2009, J CLIMATE, V22, P615, DOI 10.1175/2008JCLI2309.1 Kug JS, 2009, J CLIMATE, V22, P1499, DOI 10.1175/2008JCLI2624.1 Kug JS, 2010, J CLIMATE, V23, P1226, DOI 10.1175/2009JCLI3293.1 Lee T, 2010, GEOPHYS RES LETT, V37, DOI 10.1029/2010GL044007 Lin SJ, 2004, MON WEATHER REV, V132, P2293, DOI 10.1175/1520-0493(2004)1322.0.CO;2 Locarnini RA, 2002, NOAA ATLAS NESDIS 45, V4 McPhaden MJ, 1998, J GEOPHYS RES-OCEANS, V103, P14169, DOI 10.1029/97JC02906 Moon BK, 2004, GEOPHYS RES LETT, V31, DOI 10.1029/2003GL018829 Neelin JD, 1998, J GEOPHYS RES-OCEANS, V103, P14261, DOI 10.1029/97JC03424 Picaut J, 1997, SCIENCE, V277, P663, DOI 10.1126/science.277.5326.663 RASMUSSON EM, 1982, MON WEATHER REV, V110, P354, DOI 10.1175/1520-0493(1982)1102.0.CO;2 Rayner NA, 2003, J GEOPHYS RES-ATMOS, V108, DOI 10.1029/2002JD002670 SMITH RD, 1992, PHYSICA D, V60, P38, DOI 10.1016/0167-2789(92)90225-C Stephens C, 2002, NOAA ATLAS NESDIS 44, V3 Takahashi K, 2011, GEOPHYS RES LETT, V38, DOI 10.1029/2011GL047364 Thual S, 2011, J CLIMATE, V24, P4332, DOI 10.1175/2011JCLI4148.1 Timmermann A, 2003, J ATMOS SCI, V60, P152, DOI 10.1175/1520-0469(2003)0602.0.CO;2 Whitaker JS, 2004, MON WEATHER REV, V132, P1190, DOI 10.1175/1520-0493(2004)1322.0.CO;2 Wittenberg AT, 2006, J CLIMATE, V19, P698, DOI 10.1175/JCLI3631.1 Wyrtki K, 1982, MARINE TECHNOLOGY SO, V6, P3 Yeh SW, 2009, NATURE, V461, P511, DOI 10.1038/nature08316 Yeh SW, 2010, CLIM DYNAM, V35, P355, DOI 10.1007/s00382-010-0849-4 ZEBIAK SE, 1987, MON WEATHER REV, V115, P2262, DOI 10.1175/1520-0493(1987)1152.0.CO;2 Zelle H, 2004, J PHYS OCEANOGR, V34, P643, DOI 10.1175/2523.1 Dewitte, Boris Yeh, Sang-Wook Thual, Sulian STAR (Science and Technology Amicable Research) program; Korean Government (National Research Foundation of Korea) [2011-K1A2A012-2012-0005885]; Korea Meteorological Administration Research and Development Program under grant CATER [2012-3041] We are grateful to Pr. Soon-Il An (Univ. of Yonsei) for fruitful discussions. The anonymous reviewer is also thanked for his constructive comments that helped to improve the manuscript. This work was supported by the STAR (Science and Technology Amicable Research) program and the Korean Government (National Research Foundation of Korea-2011-K1A2A012-2012-0005885). S.-W. Yeh was also funded by the Korea Meteorological Administration Research and Development Program under grant CATER 2012-3041. 0 SPRINGER NEW YORK CLIM DYNAMVertical stratification changes at low frequency over the last decades are the largest in the western-central Pacific and have the potential to modify the balance between ENSO feedback processes. Here we show evidence of an increase in thermocline feedback in the western-central equatorial Pacific over the last 50 years, and in particular after the climate shift of 1976. It is demonstrated that the thermocline feedback becomes more effective due to the increased stratification in the vicinity of the mean thermocline. This leads to an increase in vertical advection variability twice as large as the increase resulting from the stronger ENSO amplitude (positive asymmetry) in the eastern Pacific that connects to the thermocline in the western-central Pacific through the basin-scale 'tilt' mode. Although the zonal advective feedback is dominant over the western-central equatorial Pacific, the more effective thermocline feedback allows for counteracting its warming (cooling) effect during warm (cold) events, leading to the reduced covariability between SST and thermocline depth anomalies in the NINO4 (160A degrees E-150A degrees W; 5A degrees S-5A degrees N) region after the 1976 climate shift. This counter-intuitive relationship between thermocline feedback strength as derived from the linear relationship between SST and thermocline fluctuations and stratification changes is also investigated in a long-term general circulation coupled model simulation. It is suggested that an increase in ENSO amplitude may lead to the decoupling between eastern and central equatorial Pacific sea surface temperature anomalies through its effect on stratification and thermocline feedback in the central-western Pacific
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
The Influences Of Interannual Stratification Variability And Wind Stress Forcing On Enso Before And After The 1976 Climate Shift
No full textISI Document Delivery No.: 889OI Times Cited: 0 Cited Reference Count: 26 Cited References: An SI, 2004, GEOPHYS RES LETT, V31, DOI 10.1029/2004GL021699 BLUMENTHAL MB, 1989, J PHYS OCEANOGR, V19, P815, DOI 10.1175/1520-0485(1989)0192.0.CO;2 Carton JA, 2000, J PHYS OCEANOGR, V30, P294, DOI 10.1175/1520-0485(2000)0302.0.CO;2 Carton JA, 2008, MON WEATHER REV, V136, P2999, DOI 10.1175/2007MWR1978.1 Conkright M. E., 2002, NOAA ATLAS NESDIS, V1 de Boyer MC, 2004, J GEOPHYS RES, V109, DOI [10.1029/2004JC002378, DOI 10.1029/2004JC002378] Dewitte B, 2007, J CLIMATE, V20, P2002, DOI 10.1175/JCL14110.1 Dewitte B, 1999, J PHYS OCEANOGR, V29, P1542, DOI 10.1175/1520-0485(1999)0292.0.CO;2 Dewitte B., 2000, Journal of Climate, V13, DOI 10.1175/1520-0442(2000)0132.0.CO;2 Dewitte B, 2009, J CLIMATE, V22, P5783, DOI 10.1175/2009JCLI2764.1 ERIKSEN CC, 1988, J GEOPHYS RES-OCEANS, V93, P4985, DOI 10.1029/JC093iC05p04985 Fedorov AV, 2001, J CLIMATE, V14, P3086, DOI 10.1175/1520-0442(2001)0142.0.CO;2 GRAHAM NE, 1994, CLIM DYNAM, V10, P135, DOI 10.1007/BF00210626 Guilderson TP, 1998, SCIENCE, V281, P240, DOI 10.1126/science.281.5374.240 HIRST AC, 1986, J ATMOS SCI, V43, P606, DOI 10.1175/1520-0469(1986)0432.0.CO;2 Kirtman BP, 1997, J CLIMATE, V10, P1690, DOI 10.1175/1520-0442(1997)0102.0.CO;2 LIGHTHIL.MJ, 1969, PHILOS TR R SOC S-A, V265, P45, DOI 10.1098/rsta.1969.0040 LIVEZEY RE, 1983, MON WEATHER REV, V111, P46, DOI 10.1175/1520-0493(1983)1112.0.CO;2 Moon BK, 2004, GEOPHYS RES LETT, V31, DOI 10.1029/2003GL018829 Overland J, 2008, PROG OCEANOGR, V77, P92, DOI 10.1016/j.pocean.2008.03.016 Uppala SM, 2005, Q J ROY METEOR SOC, V131, P2961, DOI 10.1256/qj.04.176 Vecchi GA, 2006, NATURE, V441, P73, DOI 10.1038/nature04744 Wang B, 2002, CLIM DYNAM, V18, P475, DOI [10.1007/s00382-001-0189-5, 10.1007/s00328-001-0189-5] Wang B, 2001, GEOPHYS RES LETT, V28, P3709, DOI 10.1029/2001GL012862 Wu RG, 2003, J CLIMATE, V16, P167, DOI 10.1175/1520-0442(2003)0162.0.CO;2 ZEBIAK SE, 1987, MON WEATHER REV, V115, P2262, DOI 10.1175/1520-0493(1987)1152.0.CO;2 Lee, Yoon-Kyoung Yeh, Sang-Wook Dewitte, Boris Moon, Byung-Kwon Jhun, Jong-Ghap Hanyang University [HY-2010-N] This work was supported by the research fund of Hanyang University (HY-2010-N). 0 SPRINGER WIEN WIEN THEOR APPL CLIMATOLIn order to understand the change in oceanic variability associated with the climate shift of the mid-1970s, we analyze the contribution of momentum forcing to the leading baroclinic modes over the tropical Pacific using Simple Ocean Data Assimilation (SODA, version 2.0.2) for the period of 1958-1997. Specifically, we look at the statistical relationship between the wind projection coefficients and climate indices and attempt to provide a physical explanation for the observed changes. It is found that the wind stress projection coefficients according to the oceanic baroclinic modes are different in terms of their magnitude and phase in the tropical Pacific, reflecting a specific forcing associated with each mode before and after the 1976 climate shift. Compared to that before the 1970s, the first baroclinic mode is had a greater effect on the interannual sea surface temperature due to equatorial wave dynamics, and there was an increased delayed response of the second baroclinic mode variability to the interannual atmospheric forcing after the late 1970s. This reflects changes in ENSO feedback processes associated with the climate shift. Our analysis further indicates that, after the late 1970s, there was a decrease in the wind stress forcing projecting onto the Ekman layer, which is associated with increased mixed-layer depth. This result suggests that the changes in the ENSO properties before and after the late 1970s are largely associated with the changes in the way in which the wind stress forcing is dynamically projected onto the surface layer of the tropical Pacific Ocean over interannual timescales
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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