1,721,010 research outputs found
KAJIAN DINAMIKA PASANG SURUT PANTAI SELATAN PULAU JAWA DENGAN DATA ALTIMETRI
Full text linkSamudra Hindia atau Samudra India adalah kumpulan air terbesar ketiga di dunia, meliputi sekitar 20% permukaan air Bumi, pantai selatan Pulau Jawa termasuk didalamnya. Perairan ini tentunya sangat penting dan berpengaruh langsung maupun tidak lansung terhadap Pulau Jawa termasuk pasang surut airnya. Tujuan dari penelitian ini adalah untuk mengetahui dinamika pasang surut dari waktu ke waktu menggunakan multitemporal satelit Altimetri dengan data Sea Level Anomaly (SLA) dari Satelit Topex/Poseidon dan data Satelit Jason-1 tahun 2002-2011. Pembentukan komponen pasang surut dari SLA dibandingkan dengan Data pengamatan pasut langsung dengan sensor yang didapat dari IOC (Intergovernmental Oceanographic Commission). Lokasi pengamatan dipilih di perairan Cilacap, Sadeng, dan Prigi. Kajian dinamika dan perbandingan komponen ditampilkan dengan grafik-grafik. Kesimpulan hasil penelitian menunjukkan perairan selatan Pulau Jawa tidak signifikan berubah ketinggianya dan tipe pasut dari ketiga lokasi pengamatan menunjukkan tipe yang sejenis, yaitu campuran condong harian ganda.Kata kunci: Pasang Surut, Samudera Hindia, Satelit Altimetri, Sea Level Anomali (SLA), Intergovernmental Oceanographic Commission (IOC)
MODEL SPASIAL MONITORING PERKEMBANGAN KAWASAN TERBANGUN DENGAN EBBI DI KOTA SEMARANG
Full text linkKawasan terbangun di Kota Semarang mengalami perkembangan pesat. Perencanaan dan pengawasan diperlukan agar tidak berdampak pada semakin sedikitnya tutupan lahan vegetasi. Pemetaan skala besar perlu dilakukan dengan cepat serta berdimensi waktu untuk seluruh kawasan. Pengindraan jauh adalah teknologi yang memungkinkan untuk membangun model spasial semacam ini. Pada penelitian ini digunakan algoritma Enhanced Built-Up and Bareness Index (EBBI) untuk melakukan monitoring perkembangan kawasan terbangun di Kota Semarang. Algoritma EBBI dipilih karena dapat membedakan antara lahan kosong dan kawasan terbangun dengan sangat baik. Analisis perubahan luas kawasan terbangun dan lahan kosong dilakukan multi temporal pada tahun 2013, 2015, dan 2018. Hasil dari analisis tersebut digunakan untuk monitoring perkembangan kawasan terbangun di Kota Semarang
ANALISIS PERUBAHAN GARIS PANTAI AKIBAT KENAIKAN MUKA AIR LAUT PANTAI KABUPATEN DEMAK
Full text linkStudi ini mengarah pada penelitian perubahan garis pantai tahun ke tahun di pantai Kabupaten Demak dengan keterkaitanya terhadap kenaikan muka air laut. Kenaikan muka laut dapat menyebabkan berkurangnya wilayah daratan seperti perubahan garis pantai. Perubahan garis pantai perlu dipantau agar dapat mengetahui besar perubahan sehingga dapat mengantisipasi dampak yang disebabkan perubahan garis pantai. Data yang digunakan penelitian ini adalah dari satelit altimetri untuk meneliti kenaikan muka air laut dan satelit Landsat multi temporal untuk meneliti erubahan garis pantai. Hasil pengolahan data diperoleh adalah terjadi adanya perubahan garis pantai di Kabupaten Demak berupa Abrasi di satu wilayah dan Akresi di wilayah lain, dan rata-rata kenaikan muka laut terjadi di Laut Jawa tetapi bukan sebagai penyebab utama dari terjadinya perubahan garis pantai.Kata kunci: Garis pantai, , Kenaikan Muka Air Laut, Altimetri, Penginderaan Jauh
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
Model Kekritisan Indeks Lingkungan Dengan Algoritma Urban Heat Island Di Kota Semarang_Peer Review
Full text link- …
