Flood-vulnerability area analysis in Karawang regency as an impact of Jakarta-Bandung mega-urban region formation using weighted overlay approach

2019 ◽  
Author(s):  
Alfin Murtadho ◽  
Haslia . ◽  
Ririska Hidayah Usra ◽  
Siti Wulandari ◽  
Ernan Rustiadi
Keyword(s):  
Urban Region ◽  
Flood Vulnerability ◽  
Weighted Overlay ◽  
Overlay Approach

scholarly journals Flood Vulnerability Analysis using Weighted Overlay

2021 ◽  
Author(s):  
Ferzha Putra Utama ◽  
Yudi Setiawan ◽  
Arie Vatresia ◽  
Julia Purnama Sari
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Sea Level ◽  
Flood Control ◽  
Geographic Information ◽  
Decision Makers ◽  
Flood Vulnerability ◽  
Weighted Overlay ◽  
Thematic Map ◽  
Priority Area

Several areas in Bengkulu City are affected by floods every year; one of the worst is the Sungai Serut sub-district.  The existence of a river that stretches along Sungai Serut also plays a role in floods over the Bengkulu area. Furthermore, this study to see the priority area over this district is still limited.  Mapping flood areas is one way to provide information, especially for decision-makers in flood control using geographic information systems. Our research aims to map flood vulnerability areas based on land height, slope, and river buffer by weighting these criteria. This thematic map is the result of overlaying several maps according to the flood vulnerability criteria. The results of this study indicate that Sungai Serut is an area with "Very Vulnerable" and "Vulnerable" levels of flood vulnerability. The story of flood vulnerability is dominated by gently sloping contours, with land elevation levels mostly below 20 m above sea level. In addition, the thing that exacerbates the potential for flood vulnerability is the existence of the river that runs along the Sungai Serut sub-district.

Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Properties ◽  
Pond Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Urban Region ◽  
Mn Toxicity ◽  
Ph Values ◽  
Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

STUDY ON DIVERSITY AND DISTRIBUTION OF ANTS (HYMENOPTERA: FORMICIDAE) IN URBAN AND PERIURBAN AREAS OF AURANGABAD CITY, MAHARASHTRA, INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. D. CHATE ◽  
R. J. CHAVAN
Keyword(s):  
Rainy Season ◽  
Winter Season ◽  
Seasonal Abundance ◽  
Urban Region ◽  
Ant Community ◽  
Community Variation

The present study deals with the ant community variation in and around Aurangabad city. During the study total 16 species of ants belonging to twelve genera and four subfamilies were reported in eight habitat from urban and periurban regions. Abundance of ants was more in peri-urban region as compared to urban region. Subfamily myrmicinae was more dominant as compared to other subfamilies. Seasonal abundance of ants was seen to be more in winter season and less in rainy season.

SISTEM INFORMASI GEOGRAFIS PEMETAAN POTENSI WILAYAH PETERNAKAN MENGGUNAKAN WEIGHTED OVERLAY

2020 ◽  
Vol 3 (2) ◽  
pp. 21-29
Author(s):  
Nisaul Awalin Khusnawati ◽  
Abdi Pandu Kusuma
Keyword(s):  
Weighted Overlay

Beternak ayam ras petelur menjadi salah satu pilihan yang paling populer dalam usaha perternakan di Kabupaten Blitar karena kebutuhan akan konsumsi protein hewani semakin meningkat seiring dengan pertambahan penduduk dan kesadaran akan pentingnya konsumsi protein. Berdasarkan data dari Dinas Peternakan dan Perikanan Kabupaten Blitar, jumlah populasi ayam ras petelur selama 4 tahun terakhir mengalami peningkatan. Data pada tahun 2019 menunjukkan, populasi ayam ras petelur mencapai angka 17.076.200 ekor, hal ini menunjukkan Kabupaten Blitar semakin berkembang dalam usaha beternak unggas. Pendirian peternakan harus melihat aspek-aspek yang tidak meresahkan masyarakat, kesalahan dalam menentukan lokasi peternakan juga dapat mengakibatkan ternak mudah terkena virus ataupun penyakit yang dapat merugikan masyarakat. Oleh karena itu diperlukannya sebuah sistem informasi geografis pemetaan potensi wilayah peternakan. Metode yang akan digunakan pada penelitian ini adalah metode Weighted Overlay yakni dengan mengoverlaykan beberapa peta raster yang menjadi parameter kondisi fisik wilayah yang sudah diberikan skor dan bobot masing – masing berdasarkan kepentingannya menggunakan metode Analitycal Hieararchy Process (AHP). sistem informasi geografis pemetaan potensi wilayah peternakan dapat membantu yang dapat menunjukkan wilayah yang masih berpotensi untuk dijadikan wilayah peternakan. Berdasarkan hasil pengujian menggunakan metode blackbox testing untuk pengujian jalan tidaknya aplikasi mendapatkan nilai total 93% yang menunjukan aplikasi dalam kategori baik.

Multi-Criteria Decision Making for Vulnerability Mapping of Flood Hazard: A Case Study of Pune City

2019 ◽  
Vol 2 (1) ◽  
pp. 41-52
Author(s):  
Nitin Mundhe
Keyword(s):  
Decision Making ◽  
Flood Hazard ◽  
Geographical Information ◽  
Multi Criteria Decision Making ◽  
Flood Hazards ◽  
Very High Frequency ◽  
Flood Vulnerability ◽  
Natural Risk ◽  
The Town

Floods are natural risk with a very high frequency, which causes to environmental, social, economic and human losses. The floods in the town happen mainly due to human made activities about the blockage of natural drainage, haphazard construction of roads, building, and high rainfall intensity. Detailed maps showing flood vulnerability areas are helpful in management of flood hazards. Therefore, present research focused on identifying flood vulnerability zones in the Pune City using multi-criteria decision-making approach in Geographical Information System (GIS) and inputs from remotely sensed imageries. Other input data considered for preparing base maps are census details, City maps, and fieldworks. The Pune City classified in to four flood vulnerability classes essential for flood risk management. About 5 per cent area shows high vulnerability for floods in localities namely Wakdewadi, some part of the Shivajinagar, Sangamwadi, Aundh, and Baner with high risk.

Sign in / Sign up

Export Citation Format

Share Document