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All Journal Jurnal Environmental Science Georafflesia : Artikel Ilmiah Pendidikan Geografi J SIG (Jurnal Sains Informasi Geografi) Spatial : Wahana Komunikasi dan Informasi Geografi Jurnal Natural INTAN Jurnal Penelitian Tambang JURNAL SAINS GEOGRAFI
Nur Alzair
Universitas Papua
Agriculture, Biological Sciences & Forestry Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Mathematics Physics Social Sciences

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STUDI ANALISIS KUALITAS AIR SUNGAI KALI DINGIN WOSI, DISTRIK MANOKWARI BARAT, KABUPATEN MANOKWARI (Analytical Studies of River Water Quality of Kalidingin Wosi, West Manokwari District, Manokwari Regency) Erikha Maurizka Mayzarah; Nur Alzair
Jurnal Sains Informasi Geografi (J SIG) Vol 4, No 2 (2021): Edisi November
Publisher : Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/jsig.v4i2.1097

Abstract

Penentuan kualitas air diperlukan sebagai arah pemantauan pencemaran air. Tujuan dari penelitian ini adalah untuk menganalisis kualitas air Sugai Kalidingin Wosi dengan parameter pH, BOD5, TSS, TDS, DO, Cr6+.  Penelitian dilakukan di Sungai Kalidingin Wosi, Manokwari Barat, Papua Barat dari bulan Januari- Maret 2021.  Titik pengambilan sampel terdiri dari 3 titik yaitu bagian Hulu Sungai, Tengah Sungai dan Hilir Sungai. Sampel air dengan Parameter Kimia-Fisika dianalisis di Laboratorium Pusat Penelitian Lingkungan Hidup Universitas Papua. Pengolahan data dari analisis Laboratorium menggunakan metode komparatif yaitu membandingkan hasil analisis laboratorium dengan Peraturan Pemerintah Nomor 82 Tahun 2001 Kelas II.  Hasil Penelitian yaitu pH di lokasi penelitian berkisar 6,55 - 7,21, TSS sebesar 73 – 91Mg/L, TDS sebesar 95 – 146 Mg/L, DO sebesar 5,3 – 6,2 Mg/L, BOD5 sebesar 8,6 – 12,7 Mg/L, dan Cr 6+ sebesar 0,0013 – 0,004 Mg/L.  Kesimpulan penelitian ini yaitu parameter TSS, DO dan BOD5 melebihi nilai ambang batas sedangkan parameter pH, TDS dan Cr6+ masih dibawah nilai ambang batas yang telah ditetapkan.  Penurunan kualitas air sungai berdasarkan parameter tersebut diakibatkan karena aktivitas masyarakat yang membuang limbah domestik ke sungai.
KAJIAN DAMPAK PEMBANGUNAN KAWASAN PERKANTORAN KABUPATEN MANOKWARI SELATAN TERHADAP LIMPASAN PEMUKAAN DI SUBDAS RANSIKI Khristian Enggar Pamuji; Nur Alzair
Jurnal Natural Vol. 17 No. 2 (2021): JURNAL NATURAL
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v17i2.151

Abstract

Penelitian ini dilakukan di area Pembangunan Kawasan perkantoran pemerintahan Kabupaten Manokwari Selatan, Papua Barat. Tujuan penelitian adalah untuk memperkirakan dampak perubahan tutupan lahan akibat pembangunan kawasan perkantoran terhadap debit limpasan pemukaan pada sub DAS Ransiki. Lokasi kajian berada di sub Daerah Aliran Sungai Ransiki Kabupaten Manokwari Selatan. Kajian ini dimulai dengan pengumpulan data serta analisis data primer dan data sekunder. Data yang dikumpulkan berupa data curah hujan Manowkari Selatan, dimensi sungai dan data spatial tutupan lahan di DAS Ransiki. Data-data tersebut kemudian digunakan untuk mengetahui debit limpasan permukaan dan kapasitas tapung maksimum badan air atau sungai. Hasil yang diperoleh dari kajian menunjukan bahwa, SubDAS Ransiki memiliki debit limpasan permukaan sebesar 2.676 m3/jam, dan debit limpasan yang berasal dari kompleks perkantoran sebesar 139 m3/jam. Peningkatan debit limpasan permukaan akibat pembangunan kawasan perkantoran diperkirakan masih dapat ditampung oleh aliran sungai atau badan air terdekat.
Kesiapsiagaan Masyarakat terhadap Bencana Banjir di Kelurahan Wosi, Manokwari, Papua Barat Nur Alzair; Erikha Maurizka Mayzarah
Jurnal Georafflesia: Artikel Ilmiah Pendidikan Geografi Vol 7 No 1 (2022)
Publisher : Universitas Prof. Dr. Hazairin, S.H

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/georaf.v7i1.2786

Abstract

Pengetahuan masyarakat tentang bencana banjir biasanya sejalan dengan peningkatan kesiapsiagaan bencana. Penelitian ini bertujuan untuk menganalisis tingkat pengetahuan dan kesiapsiagaan masyarakat terhadap bencana banjir. Penelitian dilakukan pada Kelurahan Wosi Kabupaten Manokwari Papua Barat. Populasi penelitian merupakan masyarakat Kelurahan Wosi. Pemilihan sampel penelitian menggunakan metode purposive sampling. Responden penelitian sebanyak 42 orang dari Kampung Bugis dan 42 Orang dari Kampung Tanimbar. Penelitian ini bersifat deskriptif dengan penggunaan metode kuantitatif. Pengumpulan data menggunakan metode wawancara, dokumentasi dan pencatatan dokumen. Hasil penelitian menunjukkan pengetahuan masyarakat 63,1% terkategori sedang dan 36,9% terkategori tinggi serta tidak ada yang terkategori rendah. Kesiapsiagaan masyarakat terhadap banjir 14,3% terkategori rendah dan 85,7% terkategori sedang serta tidak ada yang terkategori tinggi. Saran kedepannya yaitu untuk pemerintah sebaiknya menanmbah kegiatan penyuluhan, workshop dan simulasi tentang kesiapsiagaan banjir agar ada peningkatan kesiapsiagaan pada masyarakat.Selain itu, untuk masyarakat sebaiknya selalu bersifat aktif terhadap kegiatan kegiatan kesiapsiagaan bencana yang diberikan oleh pemerintah guna meningkatkan pengetahuan dan kesiapsiagaannya.
KARAKTERISTIK BATUGAMPING FORMASI MARUNI DAERAH WARMARE DAN SEKITARNYA KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Yorana Tabuni; Hermina Haluk; Nur Alzair
INTAN Jurnal Penelitian Tambang Vol. 4 No. 2 (2021): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (488.449 KB) | DOI: 10.56139/intan.v4i2.88

Abstract

This study aims to determine the characteristics of the Maruni Formation limestones in the Warmare area and its surroundings in Manokwari Regency by using geological mapping, and petrographic and paleontological analysis. Based on physical, petrographic and paleontological characteristics, the limestone facies in the study area consist of packstone, wackestone, mudstone and crystalline. Limestone diagenetic processes that occur in the study area are cementation diagenesis and neomorphism. Limestone depositional environment consists of two depositional environments. First, the depositional environment is in a shallow ocean shelf with limited circulation (SMF10: bioclastic packstone/wackestone with worm skeletal grains and SMF18: Grainstone or packstone with abundant foraminifera or algae; FZ7-FZ8; Platform Interior – Openmarine, Restricted). After that, sea ​​level conditions decreased, so that the depositional environment shifted towards the sea (SMF2: Micobioclastic peloidal calcisiltite and SMF3: Pelagic mudstone/wackstone – FZ3: Toe of Slope). However, in the complex classification of facies, the research area is included in the lagoon depositional environment.
STATUS KUALITAS AIR SUNGAI WOSI, KABUPATEN MANOKWARI PROVINSI PAPUA BARAT Mayzarah, Erikha Maurizka; Sauyas, Jou Roni Demetrius; Alzair, Nur
Jurnal Environmental Science Vol 7, No 1 (2024): Oktober
Publisher : UNIVERSITAS NEGERI MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/jes.v7i1.66646

Abstract

River water is a type of surface water that is usually used for community water needs. This research was conducted from October 2023 to May 2024 in the Wosi River, Wosi Village, Manokwari Regency. The parameters used in this research are TDS, pH, DO, BOD5, COD, Sulfate, Ammonia and Chloride. The method used is the pollution index. The results of this research are that the calculation results show an index value of 0.63 at the upstream of the river and 1.40 at the downstream. Based on the pollution index value, the upstream river is classified as having good water quality, while the downstream river has lightly polluted river water quality. Suggestions that can be conveyed from this research are the need to increase technical and non-technical efforts by the government and community in reducing and controlling Wosi river water pollution.
Analisis Tingkat Ancaman Longsor dI Distrik Ransiki Kabupaten Manokwari Selatan Alzair, Nur; Mayzarah, Erikha Maurizka
Jurnal Spatial Wahana Komunikasi dan Informasi Geografi Vol. 24 No. 1 (2024): Spatial : Wahana Komunikasi dan Informasi Geografi
Publisher : Department Geography Education Faculty of Social Science - Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/spatial.241.01

Abstract

One of the most important activities in landslide risk management is mapping the level of landslide threat. The objective of this research was to map the level of landslide threat in the Ransiki District. This study was carried out in the Ransiki District, South Manokwari Regency, West Papua Province from May to November 2021. Lithology, Geological Structure, Rainfall, Land Use, and Slope were the parameters used in this study. The stack plate method was used, and the analytical hierarchy process (AHP) method was used for parameter weighting. This AHP was used to calculate the weight of each parameter class and landslide disaster parameter. The landslide threat level was mapped using ArcGIS 10.1 software. According to the research findings, there were three levels of landslide threat in the Ransiki District, South Manokwari Regency. The low threat level covered 6,792.06 hectares, or 37.52% of total area of Ransiki District. The Ransiki District has a moderate threat level covered 6,741.33 hectares, or 37.24% of its total area. Ransiki District had a high threat level of 4,567.85 hectares, or approximately 25.24% of its total area. This study provided suggestion that in areas with moderate and high threat levels, more research can be conducted to reduce the impact and losses caused by landslides
Analisis Kesesuaian Lahan Untuk Tempat Pembuangan Akhir (Tpa) Sampah Di Distri Ransiki Kabupaten Manokwari Selatan Wailola, Kermil; Alzair, Nur; Maurizka Mayzarah, Erikha
Jurnal Sains Geografi Vol 3 No 1 (2025): JURNAL SAINS GEOGRAFI
Publisher : Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JSG.v3i1.04

Abstract

Ransiki District is one of the areas that has complex geological conditions and is very interesting to study. The Ransiki Fault is an active fault and is one of the main factors determining the suitability of land for a waste landfill based on geological aspects. The population growth in Ransiki District, South Manokwari Regency reached 16,245 people in 2020. However, until now there has been no landfill to accommodate waste from the community. Based on this, a land suitability study is needed to determine the location of a suitable waste disposal site. The data analysis method used in this study uses SNI No. 03-3241-1994. The results of this study, namely the regional stage which is overlaid from several parameters, produce 4 candidate locations for final waste disposal sites with candidate location 1 in Hamawi Village with an area of ​​136.51 Ha, candidate location 2 in Tobou Village with an area of ​​239.69 Ha, candidate location 3 in Sabri Village with an area of ​​413.12 Ha. Candidate location 4 is located in Kampung Sabri with an area of ​​101.45 Ha. The results of the preliminary stage from the weighting of each parameter where location 1 has a value of 495, location 2 has a value of 534, location 3 has a value of 543 and location 4 has a value of 483. From the results of the preliminary stage, the recommended location is location 3 which is located in Kampung Sabri, Ransiki District with the highest value of 543.
Co-Authors Erikha Maurizka Mayzarah Hermina Haluk Pamuji, Khristian Enggar Sauyas, Jou Roni Demetrius Wailola, Kermil Yorana Tabuni