124,615 research outputs found
Acoustic Mid-Ocean Dynamics Experiment (AMODE), 1991, North Atlantic: High-frequency Baroclinic Mode-1 Amplitudes
No full textA netcdf data file of high-frequency (> 1 cpd) baroclinic mode-1 amplitude in the western North Atlantic derived from ocean acoustic tomography data collected during the Acoustic Mid-Ocean Dynamics Experiment (AMODE) in 1991. AMODE consisted of a pentagonal array of six moored instruments deployed between Puerto Rico and Bermuda. These are baroclinic amplitudes averaged over paths several hundred kilometers long. As documented in:
Dushaw, B. D., & Worcester, P. F. (1998). Resonant diurnal internal tides in the North Atlantic. Geophys. Res. Lett., 25 , 2189–2192. doi: 10.1029/98GL01583
Dushaw, B. D., Worcester, P. F., Cornuelle, B. D., Howe, B. M., & Luther, D. S. (1995). Baroclinic and barotropic tides in the central North Pacific Ocean determined from long-range reciprocal acoustic transmissions.J. Phys. Oceanogr.(25), 631–647. doi: 10.1175/1520-0485(1995)025〈0631:
BABTIT〉2.0.CO;2
Dushaw, B. D. (2003). On the mapping and wavenumber resolution of line-integral
data for observations of low-mode internal tides. J. Atmos. Oceanic Tech., 20 ,
1043–1059. doi: 10.1175/1458.1
Dushaw, B. D. (2006). Mode-1 internal tides in the western North Atlantic Ocean.
Deep-Sea Res. Part I , 53 , 449–473. doi: 10.1016/j.dsr.2005.12.009
Dushaw, B. D., Worcester, P. F., & Dzieciuch, M. A. (2011). On the predictability of mode-1 internal tides. Deep-Sea Res. Part I (58), 677–698. doi: 10.1016/j.dsr.2011.04.002
Dushaw, B. D. (2015). An empirical model for mode-1 internal tides derived from satellite altimetry: Computing accurate tidal predictions at arbitrary points over the world oceans (Tech. Rep. No. Technical Memorandum TM 1-15). Applied Physics Laboratory, University of Washington, Seattle, WA. http://www.apl.washington.edu/project/project.php?id=tm\ 1-15
Hendershott, M. (1981). Long waves and ocean tides. In B. A. Warren & C. Wunsch (Eds.), Evolution of physical oceanography: Scientific surveys in honor of Henry Stommel (pp. 292–341). Cambridge, MA: MIT Press.
These data can be used to derive accurate estimate for baroclinic tide amplitudes in the open ocean. The file includes 15 time series of 100 to 300 day record length.
The purpose of this upload is to allow others to estimate tides from these data to test baroclinic tidal models. Other than a simple high-pass filter, the time series is unfiltered, but the baroclinic tides account for 30-80% of the variance, depending on the amplitude of the tide on the acoustic path
Observing the ocean in the 2000s: a strategy for the role of acoustic tomography in ocean climate observation
No full textAcoustic Mid-Ocean Dynamics Experiment (AMODE), 1991, North Atlantic: High-frequency Barotropic Currents
No full textA netcdf data file of high-frequency (> 1 cpd) barotropic currents in the western North Atlantic derived from ocean acoustic tomography data collected during the Acoustic Mid-Ocean Dynamics Experiment (AMODE) in 1991. AMODE consisted of a pentagonal array of six moored instruments deployed between Puerto Rico and Bermuda. These are barotropic currents averaged over paths several hundred kilometers long. As documented in:
Dushaw, B. D., Egbert, G. D., Worcester, P. F., Cornuelle, B. D., Howe, B. M., & Metzger, K. (1997). A TOPEX/POSEIDON global tidal model (TPXO.2) and barotropic tidal currents determined from long-range acoustic transmissions. Prog. Oceanogr., 40 , 337–367. doi: 10.1016/S0079-6611(98)00008-1
these data can be used to derive accurate estimate for barotropic tidal currents in the open ocean. The file includes 15 time series of 100 to 300 day record length. See also:
Stammer, D., & Coauthors. (2014). Accuracy assessment of global barotropic ocean tide models. Rev. Geophys., 52 , 243–282. doi: 10.1002/2014RG000450
which compares tidal current harmonic constants derived from these data to those derived from several global tidal models. The purpose of this upload is to allow others to estimate tides from these data to test other tidal models. Other than a simple high-pass filter, the time series is unfiltered, but the barotropic tides account for 80-90% of the variance
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Pragmatic Case Studies as a Source of Unity in Applied Psychology
No full textTo unify or not to unify applied psychology: that is the question. In this article we review pendulum swings in the historical efforts to answer this question—from a comprehensive, positivist, “top-down,” deductive yes between the 1930s and the early 60s, to a postmodern no since then. A rationale and proposal for a limited, “bottom-up,” inductive yes in applied psychology is then presented, employing a case-based paradigm that integrates both positivist and postmodern themes and components. This paradigm is labeled “pragmatic psychology” and, its specific use of case studies, the “Pragmatic Case Study Method” (“PCS Method”). We call for the creation of peer-reviewed journal-databases of pragmatic case studies as a foundational source of unifying applied knowledge in our discipline. As one example, the potential of the PCS Method for unifying different angles of theoretical regard is illustrated in an area of applied psychology, psychotherapy, via the case of Mrs. B. The article then turns to the broader historical and epistemological arguments for the unifying nature of the PCS Method in both applied and basic psychology.Peer reviewe
Dr. Edwin Wright Collection: Author Unknown
No full textNotes - The author relates several short stories about his neighbours including Alex McDonell, homesteading and life around Meanook and Athabasca (1 page
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
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