Sembulang is located in a strategic maritime location and supports the majority of the local population to work as fishermen. In addition, Sembulang is also directly adjacent to the waters of Mubut Island which is one of the favorite tourist attractions in Batam and also to the waters leading to Bintan and Tanjungpinang, making it a popular port for people in that location. However, until now there has not been an official sea map or cruise line map for traditional fishing boats / local transportation to support economic and tourism activities there. The flow of a cruise is very closely related to the depth of a waters. Water depth data can be used by fishermen and boat captains as a reference when they are sailing across Sembulang Beach. The purpose of this study was to analyze the bathymetry conditions in Sembulang Beach, Galang, which were used as a reference for safe and efficient ship grooves considerations. Bathymetry mapping is done by using multibeam echosounder to create a seafloor topographic map at the research location which is then analyzed based on the depth and width of the cruise line which is ideal for the specifications of traditional fishing vessels. Based on the analysis that has been done, it can be concluded that only ships with size <5 GT with the form of "V" Pump Boat, "V", "V" High Bow, "V" Katir, "V" Without Katir, "U" Katir and 5 GTs with safe "U" and "V" shapes to be anchored at Sembulang pier. In other words, traditional fishing boats with a size of GT 10 GT are not recommended to dock at the pier.
Kecamatan Galang, dengan Sembulang sebagai ibu Kota Kecamatan merupakan bagian dari Kota Batam, Provinsi Kepulauan Riau. Berdasarkan hasil survei lapangan yang dilaksanakan pada 21-23 Agustus 2018 di Kantor Kecamatan Galang dan Kantor Kelurahan Sembulang ditemukan beberapa masalah yaitu belum tersedianya peta kecamatan dan keluruhan atau desa yang sesuai dengan kaidah kartografis, bahkan hanya Desa Sembulang dari seluruh desa yang ada di Kecamatan Galang yang memiliki peta desa, desa yang lain belum punya. Keterlibatan masyarakat dalam pemetaan desa juga sangat kurang sehingga banyak terjadi kesalahpahaman dalam penentuan batas kartometrik. Selain itu, kurangnya pengetahuan masyarakat dan perangkat desa tentang penggunaan peta sebagai dasar pengelolaan ruang untuk mengembangkan potensi wilayah. Berdasarkan hal tersebut akan dilaksanakan kegiatan pengabdian sesuai dengan kebutuhan masyarakat (hasil diskusi dengan Camat Galang) yaitu pelatihan pembuatan peta desa dan kelurahan Se-Kecamatan Sembulang Kota Batam dengan 3 kegiatan utama yaitu, pertama pelatihan penggunaan GPS hanheld, deliniasi citra google earth, dan perekaman informasi geospasial. Kegiatan Pelatihan (Bimtek) Pembuatan Peta Desa dan Kelurahan Se-Kecamatan Galang, Kota Batam telah dilaksanakan pada Selasa, 6 Agustus 2019 dengan diikuti oleh 39 peserta. Peserta dalam kegiatan ini adalah perangkat Kecamatan Galang, Para Lurah, Sekretaris Lurah, dan perangkat kelurahan yang ada di Kecamatan Galang. Kegiatan pelatihan dimulai dengan penyampaian materi ruang lingkup informasi geospasial dan sosialisasi penggunaan peta, dilanjutkan dengan pelatihan penggunaan GPS Handheld untuk merekam data spasial seperti fasilitas umum dan lokasi wisata, dan pelatihan pembuatan peta desa dengan menggunakan software Argish.
One part of the hydrologic cycle which has a major influence in increasing the amount of river flow discharge is surface runoff. The higher surface runoff discharge, causing the possibility of surface flooding, therefore required an empirical model that can calculate the amount of surface runoff so as to produce updated data and quickly change according to their needs. One of the empirical methods that can be used to calculate the amount of surface runoff is by using the curve number method. This research is done by utilizing remote sensing image, that is, ALOS AVNIR-2. Data extraction from ALOS imagery includes land cover information using multispectral classification analysis, slope inclination information through visual interpretation, and land use interpretation. The runoff that occurred in Banjarnegara Regency tends to be high, that is, 61.24 percent of the total area of the research area. Large runoff with very high/extreme class spread on the form of hilly land to the old volcano complex at the study site. The runoff in the medium to low class only covers 3.56 percent of the total area and is distributed on the fluvial form with the flat-to-flat slopes. The result of analysis of runoff data is obtained from slope analysis and type of land use in the research location. Increasingly steep slope with little vegetation-land use, then the greater the runoff that occurs. Finally, the research result could be implemented into higher student class activity, especially in remote sensing classes, GIS, cloud computing, and big data analysis. By this process, the students will be improved their skills in analyzing imagery data as well as create new information derived from the remote sensing data.
Sampah perairan di Indonesia merupakan permasalahan yang belum terselesaikan hingga saat ini. Sementara itu, dengan bertambahnya jumlah penduduk maka akan semakin bertambah volume timbunan sampah yang dihasilkan dari aktivitas manusia. Tak hanya permasalahan sampah, krisis energi tak terbarukan pun menjadi salah satu permasalahan di Indonesia, dimana terbatasnya ketersediaan energi tak terbarukan dalam pemenuhan kebutuhan energi manusia. Energi tak terbarukan juga dapat menyebabkan polusi yang dapat mengganggu kesehatan manusia. Melihat permasalahan tersebut, maka penelitian ini berupaya merancang alat PESTA (Pengangkut Sampah Tenaga Angin) sebagai alternatif solusi dalam membantu mengurangi jumlah timbunan sampah perairan dengan memanfaatkan potensi energi terbarukan berupa tenaga angin. Dalam mendesain rancangan alat peneliti menggunakan software Sketchup 2015. Rancangan alat dibuat dengan berdasarkan hasil studi literatur berupa rancangan-rancangan atau inovasi alat yang sudah ada sebelumnya. Hasil penelitian merupakan rancangan prototipe alat PESTA yang dibuat dengan ukuran tinggi 2 m, dan panjang serta lebar dengan ukuran 1.5 m.
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