1,720,975 research outputs found
Introduction
No full textThis proceedings volume contains papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XV. The conference was part of the 20th International Symposium on Remote Sensing sponsored by SPIE—The International Society for Optical Engineering. The symposium was held at the Internationales Congress Center, Dresden, Germany, from 23rd to 26th of September 2013.
The conference is dedicated to providing rapid dissemination of scientific and technical information, and attracted scientists and professionals from throughout Europe, Africa, Asia, and the Americas. Approximately 40 oral and 20 poster presentations were given, covering a broad range of topics in the field of remote sensing applications in environmental science.
The program was organized according to major themes, with 11 sessions on Agriculture: Nitrogen and chlorophyll Assessment, Irrigation and soil water content, and Crop monitoring (3); Ecosystems: Estuaries, rivers, lakes; Forest monitoring; Classification and change detection; Land characterization, and, Environmental monitoring (5); Hydrology: Energy Balance and evapotranspiration and Hydrology (2). Finally, a Joint Session with SAR Image Analysis, Modelling and Techniques conference included selected papers concerning the subject “radar application in Agro-Hydrology”. The poster presentations also had good representation from the above-mentioned themes. The presentations described both fundamental and applications-based research activities including modelling, laboratory and field experiments, and operational applications.
We extend our thanks to Goffredo La Loggia of Università degli Studi di Palermo for chairing two of the sessions, to the presenters for their efforts and to the participants for their insightful questions and discussions. Special thanks are also due to the host city for the excellent venue and to the SPIE organizational staff for their support prior to, during, and after the symposium. We look forward to an even more successful conference in 2014
Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII
No full textThis proceedings volume contains papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII. The conference was part of the 18th International Symposium on Remote Sensing sponsored by SPIE—The International Society for Optical Engineering. The symposium was held at the Clarion Congress Hotel Prague, Prague, Czech Republic, from 19th to 21th of September 2011.
The conference is dedicated to providing rapid dissemination of scientific and technical information, and attracted scientists and professionals from throughout Europe, Africa, Asia, and the Americas. Approximately 45 oral and 30 poster presentations were given, covering a broad range of topics in the field of remote sensing applications in environmental science.
The program was organized according to major themes, with 10 sessions on Agriculture: Irrigation and Energy Balance and Agriculture (2); Ecosystems: Estuarine, Coastal and Inland Waters; Vegetation and Change detection; Hydrology: Snow and Hydrology (2). The poster presentations also had good representation from the abovementioned themes. The presentations described both fundamental and applications-based research activities from modelling, to laboratory and field experiments, to operational applications. The oral program also included three invited presentations: James L. Foster of NASA Goddard Space Flight Ctr. (USA) gave a presentation on the subject “Remote sensing of snow cover and snow water equivalent for the historic snowstorms in the Baltimore/Washington area during February 2010” within a Snow session; Heikki K. Saari of VTT Technical Research Ctr. of Finland (Finland) gave a presentation on the subject “Unmanned aerial vehicle (UAV) operated spectral camera system for forest and agriculture applications” within General Application session; Clement Atzberger of University of Natural Resources and Life Sciences (BOKU) Wien, (Austria) gave a presentation on the subject “Why confining to vegetation indices? Exploiting the potential of improved spectral observations” within a Vegetation session; Short reports pointing out the state of art and perspectives in the research fields of the invited talks are reported below.
We extend our thanks to the co-editor Katja Richter of Ludwig-Maximilians-Univ. München, and Session chairs Francesco Vuolo of Univ. of Univ. für Bodenkultur Wien (Austria) and Goffredo La Loggia of Univ. degli Studi di Palermo, and to the presenters for their efforts and to the participants for their insightful questions and discussions. Special thanks are also due to the host city for the excellent venue and to all the SPIE organizational staff for their support prior to, during, and after the symposium. We look forward to an even more successful conference in 2012
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
Global scale simulation of flood plain inundation with low resolution space-borne data
No full textWith flood risk increasing worldwide, inexpensive and globally-applicable flood management support is becoming very important. This short paper illustrates how low cost and globally available space-borne radar data might offer such support on large scales. From a test case of the summer 2007 floods in England, validation with aerial photography suggests that uncertainties in water levels from wide swath radar imagery, as well as the structure from a hydrodynamic model based on satellite data, can be estimated adequately enough for operating within an assimilation framework.</p
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
A validation of a thermal inertia approach to map soil water content on soils characterized by low fractional cover
No full textDispelling 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
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