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Analysis on the change of runoff curve number influence to surface flow debit using ALOS AVNIR-2 data imagery Wenang Anurogo; Kartika Pratiwi; Muhammad Zainuddin Lubis; Mir'atul Khusna Mufida; Luthfiya Ratna Sari; Siti Noor Chayati
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 27, No 1 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um017v27i12022p15-25

Abstract

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.
Intensifikasi Jalur Transportasi Nelayan Melalui Sosialisasi Rute Pelayaran Efektif Berbasis Medan Di Kelurahan Sembulang Luthfiya Ratnasari; Siti Noor Chayati; Farouki Dinda Rassarandi; Muhammad Zainuddin Lubis; Wenang Anurogo; Sudra Irawan; Okatvianto Gustin; Arta Uly Siahaan; Riki Riki; Rizki Widi Pratama; Fadli Suandi; Swono Sibagariang; Arif Roziqin
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol 3 No 2 (2021): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Pusat P2M Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimas polibatam.v3i2.2833

Abstract

Sembulang Village has high potential from marine resources, tourism, to the potential geographical position that supports inter-island shipping lanes. This presents sourced its challenges to make the most of the existing economic potential while maintaining the ecological potential to achieve sustainable coastal development. Practical skills possessed by fishermen in K Sembulang Village become important provisions in the realization of sustainable development, but this needs to be harmonized with the support of various scientific backgrounds. Terrain complex analysis is able to accommodate various considerations in identifying the best sea transportation routes while minimizing negative effects on the environment. Based on these advantages carried out socialization to fishermen who are in Kelurahan Sembulang. From the activities that were successfully held, feedback obtained from participants' satisfaction with the provision of material reached 89.67%, scientific benefit aspects for the residents amounted to 87.29%, facilities supporting activities valued at 84.28%, while as much as 96.77% residents wanted similar activities to be held again in Kelurahan Sembulang.
Pemetaan Batimetri untuk Pertimbangan Alur Pelayaran Kapal Nelayan di Pantai Sembulang, Kecamatan Galang Farouki Dinda Rassarandi; Siti Noor Chayati; Luthfiya Ratna Sari; M Zainuddin Lubis; Oktavianto Gustin; Dwiki Novri Ditya; Afifah Aprilianda; Adelia Eky Wardani
Jurnal Geospasial Indonesia Vol 3, No 1 (2020): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jgise.54654

Abstract

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.
Comparison of Global and Regional Tidal Models at Sekupang Tidal Station Siti Noor Chayati; Sefi Nuraeni
International ABEC 2021: Proceeding International Applied Business and Engineering Conference 2021
Publisher : International ABEC

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (789.824 KB)

Abstract

Indonesia is an archipelagic country with a total marine area of 5.9 million km², consisting of 3.2 million km² of territorial waters and 2.7 km² of Exclusive Economic Zone waters, not including the continental shelf. With the vast waters in Indonesia, sufficient information about the tides is needed. However, in reality the number of tidal stations targeted by the Geospatial Information Agency (BIG), which is as many as 400 stations, has not been fulfilled. The data used in this study include tidal data at Sekupang station, global model data TPXO9 and regional model data from BIG. The components studied are the main components M2, K2, O1, and S1 using the Least Squares Adjustment method. The minimum discrepancy value is shown by the TPXO9 model, which means that the TPXO9 global model is a more suitable model to be used as a tidal prediction model in the waters of Batam Island.