Akurasi Metode IDW dan Kriging untuk Interpolasi Sebaran Sedimen Tersuspensi

Pramono, Gatot H.

doi:10.23917/forgeo.v22i1.4929

Cited by 50 publications

(46 citation statements)

References 3 publications

(1 reference statement)

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“…The assumption of this method is the value of interpolation will be more similar to the near sample data, besides that farther one. The weight will change linearly according to the distance of sample data [4]. The rainfall intensity in study area about 2591 -4276 mm/year that can be seen in Figure 8.…”

Section: Rainfallmentioning

confidence: 94%

Analysis of Environmental Vulnerability in The Landslide Areas (Case Study: Semarang Regency)

Hani'ah

Firdaus

Nugraha

2017

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. The Land conversion can increase the risk of landslide disaster in Semarang Regency caused by human activity. Remote sensing and geographic information system to be used in this study to mapping the landslide areas because satellite image data can represent the object on the earth surface in wide area coverage. Satellite image Landsat 8 is used to mapping land cover that processed by supervised classification method. The parameters to mapping landslide areas are based on land cover, rainfall, slope, geological factors and soil types. Semarang Regency have the minimum value of landslide is 1.6 and the maximum value is 4.3, which is dominated by landslide prone areas about 791.27 km 2 . The calculation of the environmental vulnerability index in the study area is based on Perka BNPB No. 2/2012. Accumulation score of environmental vulnerability index is moderate value, that means environment condition must be considered, such as vegetation as ground cover and many others aspects. The range of NDVI value shows that density level in conservation areas (0.030 -0.844) and conservation forest (0.045 -0.849), which rarely until high density level. The results of this study furthermore can be assessed to reduce disaster risks from landslide as an effort of disaster preventive.

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Section: Rainfallmentioning

confidence: 94%

Analysis of Environmental Vulnerability in The Landslide Areas (Case Study: Semarang Regency)

Hani'ah

Firdaus

Nugraha

2017

IOP Conf. Ser.: Earth Environ. Sci.

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“…Metode interpolasi yang digunakan dalam penelitian ini adalah inverse distance weighted (IDW). Pramono (2008) menyatakan bahwa metode IDW memberikan hasil interpolasi yang lebih akurat dari metode kriging, hal ini ditunjukkan dengan nilai interpolasi metode IDW mendekati nilai minimum dan maksimum dari sampel data TSS. Affan (2012) dan Radiarta et al (2006) juga menyebutkan bahwa interpolasi data fisik wilayah pesisir lebih tepat menggunakan metode IDW karena tidak menghasilkan nilai melebihi data yang disampel.…”

Section: Analisis Dataunclassified

Identifikasi Potensi Kesesuaian Perairan Untuk Budidaya Rumput Laut Di Teluk Mulut Seribu, Rote Ndao, Nusa Tenggara Timur

Andayani¹,

Pamungkas²

2018

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ABSTRAKRumput laut merupakan salah satu komoditas unggulan sektor perikanan. Salah satu sentra budidaya rumput laut yang akan dikembangkan adalah Kabupaten Rote Ndao, yang memiliki ketersediaan perairan potensial untuk pengembangan budidaya rumput laut. Kajian kesesuaian perairan untuk budidaya rumput laut perlu dilakukan untuk keberlanjutan budidaya. Penelitian ini bertujuan untuk mengkaji karakteristik dan kesesuain perairan untuk pengembangan budidaya rumput laut di Teluk Mulut Seribu, Rote Ndao. Pengambilan data kualitas perairan dilakukan dengan pengukuran langsung dan mengambil sampel untuk dianalisis di laboratorium. Distribusi spasial kualitas perairan di area kajian diinterpolasi menggunakan metode IDW dengan perangkat lunak ArcGIS. Ada 4 parameter yang diperhitungkan dalam analisis spasial, yaitu: kedalaman, kecepatan arus, kecerahan dan alur layar, yang ditumpangsusun tanpa pembobotan untuk mendapatkan peta kesesuaian. Sementara itu beberapa parameter lainnya tidak masuk dalam analisis spasial karena kisaran nilainya sudah sesuai untuk budidaya rumput laut. Hasil penelitian menunjukan bahwa kesesuaian lahan untuk budidaya rumput laut di perairan Mulut Seribu mencapai 56% atau 497,68 hektar dari 879,18 hektar area kajian. Area yang sesuai untuk budidaya rumput laut tersebut memiliki potensi panen hingga 50 ton per siklus. KATA KUNCI: budidaya rumput laut; analisis spasial; Rote Ndao ABSTRACT: Identification of potential suitability area for seaweed farming in Mulut Seribu Bay, Rote Ndao, East Nusa Tenggara. By: Ariani Andayani and Amin PamungkasSeaweed is one of the leading commodities in fisheries sector. In Rote Ndao regency, plans to develop seaweed aquaculture centers have been advised considering the regency's potential coastline areas for seaweed farms. However, a site suitability study is needed to determine if the area is suitable for seaweed aquaculture to ensure its long term sustainability. This study was aimed to examine the characteristics and suitability of Teluk Mulut Seribu waters in Rote Ndao for seaweed cultivation. Data collection on water quality parameters was done via in-situ measurement and samples were collected to be analysed ex-situ in the laboratory. The full extent of spatial distributions of water quality parameters was determined using IDW interpolation tool available in ArcGIS. The four parameters used in the spatial analysis, namely: depth, current velocity, brightness, and sea transportation line were overlaid using non-weighted arithmetic mean operation to create a final composite of suitability map. The other measured parameters were not included in the spatial analysis because the value ranges were considered suitable for seaweed cultivation. The results showed that 56% or 497.68 ha from 879.18 ha of seascape in Teluk Mulut Seribu are suitable for seaweed farming.This study recommends that these suitable areas can be used for seaweed aquaculture with a predicted harvest potential up to 50 ton per culture cycle. PENDAHULUANRumput laut menjadi salah satu komoditas perik...

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“…Inverse distance weighted, natural neighbor, spline, and kriging trend are the rules used in the interpolation. Furthermore, Booth and Mitchell [2,3]; Gorr and Kurland [13] and Pramono [30] have confirmed that Kriging rules has the advantages of unbiased properties, minimum variance, and it serves as a linear combination rather than observation. Kriging interpolation results from the data analysis of the soil bearing capacity in Kirkuk city is presented in Fig.…”

Section: Spatial Analysis Of Soil Bearing Capacitymentioning

confidence: 99%

Determining the suitability trends for settlement based on multi criteria in Kirkuk, Iraq

Omar

Raheem

2016

Open geospatial data, softw. stand.

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Background: Swift population growth and unplanned settlement led to the phenomenon of informal urban in Iraqi cities because of warfare, political instability and economic blockage for more than three decades. Economic status and political migration to sensitive areas were mainly due to weak management of local government organizations. The complexity process in the growth trend for settlements does not involve any modern factors requirements such as topography, soil bearing capacity and other environmental factors issues that may result in a determination of settlement zone trends. Today, after the disaster, it has become necessary to determine the suitability trend for the new settlement area to determine which areas are compatible for the settlement area purpose.

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Akurasi Metode IDW dan Kriging untuk Interpolasi Sebaran Sedimen Tersuspensi

Cited by 50 publications

References 3 publications

Analysis of Environmental Vulnerability in The Landslide Areas (Case Study: Semarang Regency)

Analysis of Environmental Vulnerability in The Landslide Areas (Case Study: Semarang Regency)

Identifikasi Potensi Kesesuaian Perairan Untuk Budidaya Rumput Laut Di Teluk Mulut Seribu, Rote Ndao, Nusa Tenggara Timur

Determining the suitability trends for settlement based on multi criteria in Kirkuk, Iraq

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