Article Per Year (5 Year)
p-Index From 2019 - 2024
0.23
P-Index
This Author published in this journals
All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES
Ni Made Pertiwi Jaya
Universitas Udayana
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Extraction of Tsunami Damaged Areas Due to the 2010 Chile Earthquake Using Optical and SAR Data of ALOS Ni Made Pertiwi Jaya; Fusanori Miura
International Journal of Environment and Geosciences Vol 2 No 2 (2018)
Publisher : Graduate Study of Environmental Sciences, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ijeg.2018.v02.i02.p02

Abstract

Information about damage areas is important due to the large-scale disasters worldwide. In the last decade, both optical and SAR remote sensing were applied in many disaster researches, such as tsunami damage detection. In this study, the ALOS AVNIR-2 and PALSAR images are used to extract the damaged areas caused by the 2010 Chile earthquake. In the processing of ALOS/AVNIR-2, the inundation area was estimated based on the NDVI calculation and classification. Furthermore, damaged areas of the ALOS/PALSAR are extracted by integrating the AVNIR-2 image for water mask and the DEM image for elevation mask. The damaged area result of AVNIR-2 is 8.91 Km2 and for the PALSAR is 8.72 Km2 that is along the coastal areas. The image results showed a good agreement and corresponding area according to the institutional map of the inundation area. Future study in another area is needed in order to strengthen the processing method.
Assessment of Surface Water Quality Status Using the Pollution Index Method in Tukad Badung River Kadek Diana Harmayani; Ni Made Pertiwi Jaya; Ida Ayu Rai Widhiawati; I Gede Andy Andika Parahita; Ngakan Gede Agung Khrisna Wiryananda; Ni Nyoman Dewi Supriyani; Daniel Rizal Mahendra; I Gusti Agung Gede Wiranata Baskhara; Debora Sofia Fransiska Hutagalung
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 20, No 1 (2023): March 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v20i1.175-185

Abstract

This research proposes to find out the present state of the water's purity in Tukad Badung through an examination of the Pollution Index (PI) adopted from the methodology presented by the Water Quality Index (WQI), which was presented by the Indonesian Ministry of Environment. A series of water samples were taken at three river flow points in the Denpasar City area, representing the upstream, middle, and downstream areas. The water quality parameters were determined based on the characteristics of domestic wastewater pollutant sources that are identified in watershed areas. In accordance with Regulation 22 of the Government of 2021 concerning quality standards for river water used for drinking water, the average concentrations of Total Suspended Solid (TSS), Ammonia, Biological Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) parameters have exceeded quality standards. Meanwhile, the oil and grease parameter, as well as detergents, still meet quality standards. The PI at three monitoring points was obtained at 2.41 – 4.27, categorized as lightly polluted. In the future, efforts to deal with water pollution are critical to meet the downstream water quality standards used as drinking water.
Co-Authors Daniel Rizal Mahendra Debora Sofia Fransiska Hutagalung Fusanori Miura I Gede Andy Andika Parahita I Gusti Agung Gede Wiranata Baskhara Ida Ayu Rai Widhiawati Kadek Diana Harmayani Ngk. Gd. A. Khrisna Wiryananda Ni Nyoman Dewi Supriyani