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APLIKASI WEAP (WATER EVALUATION AND PLANNING) UNTUK PENGELOLAAN SUMBER DAYA AIR
No full textKeberadaan air sebagai sumber daya di alam ini bersifat dinamis yang berkaitan dengan siklus
hidrologi. Permasalahan yang biasanya terjadi pada pengelolaan sumber daya air yaitu terjadinya
krisis air. Faktor utama krisis air ini ialah perilaku manusia sendiri dan kerusakan lingkungan yang
terjadi. Aplikasi WEAP merupakan salah satu program komputer yang dibuat untuk membantu
dalam hal evaluasi sumber daya air dan pengembangan sumberdaya air yang berkelanjutan. Prinsip
pengelolaan sumber daya air secara umum harus memenuhi beberapa kriteria, antara lain
dilaksanakan secara terpadu dan berwawasan lingkungan, pengelolaan infrastruktur keairan, dan
pada dasarnya berupa pemanfaatan, perlindungan, dan pengendalian. Aplikasi WEAP dibuat dan
dikembangkan oleh Stockholm Environment Institute - Tellus Institute, Boston, Massachusetts.
WEAP beroperasi dengan prinsip dasar kesetimbangan air dan dapat diterapkan pada sistem suatu
kota maupun daerah pertanian, daerah aliran sungai tunggal atau daerah aliran sungai lintas
wilayah. Pada hakikatnya, air tidak dibatasi oleh batas administratif suatu daerah melainkan adanya
daerah aliran sungai. Hal ini menyebabkan banyak daerah aliran sungai yang bersifat lintas
wilayah. Selain itu, WEAP dapat mensimulasikan berbagai komponen alam dan rekayasa sistem,
termasuk curah hujan yang terjadi tiap satuan waktu, aliran air relatif, dan resapan airtanah dari
curah hujan, konservasi air, kebijakan air dan prioritas alokasi, operasi reservoir, generasi
hydropower, kualitas air, penilaian kerentanan serta persyaratan ekosistem.
Kata kunci: Sumberdaya air, Kesetimbangan air, Aplikasi WEAP (Water Evaluation and
Planning
PENCEMARAN LOGAM BERAT MERKURI (Hg) PADA AIRTANAH
No full textThe earth consists largely of water because the land area is smaller than the ocean. Human beings on this earthcan not escape the need for water. Water is the main requirement for the process of life on the earth.Relatively clean water that is coveted by men, whether for purposes of daily life, for industrial purposes, for thecleanliness of city sanitation, as well as for agricultural purposes and so forth. Heavy metal pollution is a veryserious issue to be handled, because of adverse environmental and ecosystem in general. Heavy metallic elementis the element which has a density of more than 5 gr/cm3. Hg has a density of 13.55 gr/cm3. Disaster is anoutbreak of Minamata mercury poisoning in people who eat fish contaminated by mercury in Minamata Japan,and this event is known as Minamata Disease. Efforts to tackle the heavy metal pollution can actually be doneusing a chemical process or by microorganism such as microbes and bacteria
APLIKASI GEOSPASIAL MENGGUNAKAN ARCGIS 10.3 DALAM PEMBUATAN PETA DAYA HANTAR LISTRIK DI CEKUNGAN AIRTANAH SUMOWONO
Get PDFAir tanah sebagai air bersih merupakan salah satu kebutuhan primer manusia yang dimanfaatkan dalam berbagai kepentingan manusia serta untuk air minum. Airtanah memiliki kualitas dimana salah satu parameter fisiknya adalah daya hantar listrik (DHL). Dalam suatu Cekungan Airtanah (CAT), airtanah memiliki keberagaman nilai daya hantar listrik yang dipengaruhi oleh faktor infiltrasi dan lingkungan. Nilai DHL dapat dijadikan suatu acuan mengenai kelayakan suatu airtanah sebagai air minum. Sebagai salah satu sumber yang paling diminati masyarakat, maka masyarakat juga perlu untuk mengetahui kualitas dari airtanah tersebut melalui parameter daya hantar listrik sehingga peta daya hantar listrik daerah CAT Sumowono dapat menjadi suatu informasi bagi masyarakat yang menggunakan airtanah dari CAT Sumowono tersebut. Maka dari itu perlu adanya pembuatan peta daya hantar listrik daerah CAT Sumowono agar masyarakat merasa nyaman dan aman dalam memanfaatkan airtanah. Metode interpolasi data DHL menggunakan analisis geostatistik yang terdapat pada perangkat lunak ArcGIS 10.3. Metode interpolasi yang digunakan adalah Inverse Distance Weighting (IDW), Radial Basis Functions (RBF) dan Empirical Bayesian Kriging (EBK). Dari keseluruhan data yang terinterpolasi, didapatkan dua kelas kualitas airtanah berdasarkan nilai DHL, yaitu Sangat Baik (<250 μS/cm) dan Baik (250-750 μS/cm). Metode interpolasi yang dinilai paling seimbang adalah metode RBF. Melalui peta DHL hasil interpolasi metode RBF diketahui persebaran daerah dengan kelas sangat baik pada daerah CAT Sumowono mencakup 52,8% dari luas CAT dan 47,2% masuk ke dalam kelas baik
Analisis Level Kesiapan Warga Menghadapi Potensi Bencana Longsor Kota Semarang
Get PDFSemarang memiliki morfologi bervariasi yang berpotensi terhadap bencana tanah longsor. Daerah rawan longsor ini mengakibatkan kerugian yang tidak sedikit baik sisi ekonomi sosial seperti bangunan (vihara, talud, rumah dan sebagainya) maupun nyawa manusia. Dalam hal ini manusia banyak dirugikan meskipun aktivitas manusia juga terdeteksi sebagai salah satu penyebab utama terjadinya bencana longsor. Untuk mengurangi kerugian yang mungkin ditimbulkan oleh bencana longsor di Kota Semarang perlu diketahui status kesiapsiagaan warga sehingga prioritas sosialisasi dan intervensi dapat terarah dengan baik. Metode yang digunakan dalam penelitian ini adalah mengukur indeks kesiapsiagaan warga di 19 lokasi titik penelitian rawan bencana longsor. Hasil penelitian menunjukkan secara umum, kesiapsiagaan masyarakat Semarang masuk dalam kategori “Hampir Siap” dengan nilai indeks 55,74. Terdapat 2 lokasi yang memiliki indeks kesiapsiagaan “BelumSiap” yaitu Kembang Arum dan Manyaran. Daerah Mangunharjo berada dalam kategori indeks cukup siap. Ketiga daerah ini berada di daerah dengan tingkat kerawanan cukup tinggi sehingga diprioritaskan untuk mendapatkan sosialisasi dan intervensi yang diperlukan.
[Title: Analysis of Citizens’ Preparedness Level toward Potency of Landslides Disaster in Semarang City] Semarang has different morphology and by doing so caused a high potential for landslides. This case resulted in the losses of the landslide-prone area both for the social economy such as buildings (temples, embankments, homes, etc.) and human lives. In this case, the man obtained many disadvantages although human activity is also detected as one of the main causes of the landslide. To reduce the losses, it is needed to know the status of citizens’ preparedness so that the priority of socialization and interventions can be targeted properly. The method used in this study is the measurement of the preparedness index of residents in 19 locations of landslides-prone areas. The results showed in general, the community preparedness Semarang in the category "Almost Ready" with an index value of 55.74. There are two locations that have an index of preparedness "Not Ready" namely Kembang Arum and Manyaran. Mangunharjo area is in the category of the index “Quite Ready”. Those areas are located in areas with fairly high degree of vulnerability. So they are prioritized for the socialization and the interventions
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Plastic Wastes Distribution Pattern in the Covid-19 Era in Kreo Sub-Watershed Basin, Semarang City
No full textThe COVID-19 pandemic in Indonesia has occurred since March 2020 has caused restrictions on people’s mobility and forced people to adapt by changing people’s consumption patterns. To reduce direct interaction, people use products that are more durable, easy to take home, and hygienic. The use of plastic packaging and single-use plastic products is increasing. Without waste management, plastic dumped into rivers will increase and ultimately increase the potential for microplastic pollution. This study aimed to analyze and compare the types and distribution of plastic wastes in the Kreo sub-watershed basin sediments. Types of plastic wastes are categorized according to the Van Emmerik classification. Research samples were taken at 17 locations. This study uses a survey method with a qualitative descriptive approach. The average abundance of plastic wastes is 6-24 n/m2. The characteristics of plastic wastes in the upstream are dominated by PO-soft (47.95%), similar to the middle (51.12%), and in the downstream, it is dominated by multilayer (65%). The area with the most significant accumulation of plastic waste is downstream (20 n/m2) due to denser settlements, extensive sedimentation and river topography. The type of plastic waste in the Kreo sub-watershed basin can be a source of microplastic pollution in the future
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
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