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All Journal JURNAL SPASIAL NUCLEUS: Jurnal Sains dan Teknologi Jurnal Azimut
Mariati, Heny
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Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Earth & Planetary Sciences Education Environmental Science Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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ANALISIS OZON BERBASIS SATELIT AIRS NASA GIOVANNI SYSTEM Mariati, Heny; Suryani, Novelisa; Afandi, Roky
Jurnal Spasial Vol 6, No 2 (2019)
Publisher : Program Studi Pendidikan Geografi STKIP PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/js.v6i2.3855

Abstract

This study aims to study and analyze changes in ozone concentration and its influence with the phenomenon of forest fires in the Sumtra region and see the distribution of ozone concentrations according to latitude zones of the Sumatra region. With the observation method using AIRS satellite data and utilizing the Giovvani System web tool to calculate ozone concentrations every month from January-September. the results showed a significant decrease in stratospheric ozone concentrations in September following the increase in CO during severe forest fires. Abnormal circumstances occur where ozone concentrations decrease significantly in August and September, occurring with a concentration range of 19 to 26 DU from the highest average in May. The effect of forest and land fires is also condemned by the distribution of CO in September which increased by 119 ppbv compared to January to July CO concentrations ranged from 75 to 85 ppbv. A quite different pattern occurred in August and September where ozone concentrations decreased in zone 2 LS-2 LU which is a zone of forest fires in September.
Beach Erosion Impact In Manggopoh Palak Gadang Ulakan Village Suryani, Novelisa; Mariati, Heny; Roberto, Roberto; Fajri, Muhammad
Jurnal Spasial Vol 6, No 3 (2019)
Publisher : Program Studi Pendidikan Geografi STKIP PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/js.v6i3.3860

Abstract

Beach erosion is an unavoidable phenomenon in coastal areas. The wind, climate change, tides and  sea level rised are the triggering factors for beach erosion. Some research also shows that beach erosion influenced by the physical structure, land use changing and morphology of the beach. Ulakan Tapakis District which is geographically bordered directly with the Indian Ocean is exposed to the direct impact of beach erosion, one of the worst areas, namely Nagari Manggopoh Palak Gadang Ulakan. The annual phenomenon causes social and economic losses, also physical buildings around the coast. This study aims to examine the physical and social economic impact of beach erosion. This research was conducted by surveys and in-depth interviews with stakeholders and the data were processed by descriptive methods. The results showed that the physical impact of beach erosion, namely damaging settlement, fish auction places, towers and roads around the beach. In addition, it also causes wells shallowing and sea water intrusion. The socio-economic impact that is decreased the income of citizens up to 50% and shifting the types of livelihoods, especially in trading.
ARAHAN LOKASI RELOKASI MASYARAKAT UNTUK MITIGASI BENCANA TSUNAMI DI KOTA PADANG Mariati, Heny; Putri, Desi Eka; Tresia, Intan Mastura; Osronita, Osronita; Febrianto, Hary
NUCLEUS Vol 5 No 02 (2024): NUCLEUS
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/nuc.v5i02.1787

Abstract

This study aims to identification the availability of vacant land in the city of Padang, analyze the availability of vacant land that is safe from the tsunami disaster for direction of community relocation locations in the city of Padang, integrate the availability of vacant land that is safe from the tsunami disaster for aragan the location of community relocation to the Padang City Spatial Plan, and Making a map of the direction of the community relocation location for tsunami disaster mitigation in Padang City. The sample of this research was determined according to the research topic by using the Cluster sampling technique (sample area). The data management of this research uses observation method or satellite image interpretation technique and overlay method. The results show that the availability of vacant land which will be used as a relocation location for the people of Padang City for tsunami disaster mitigation with an area of 2.73 Ha or 1.12% of the area of Padang City and can accommodate as many as ±10,238 people based on the average population density of Padang City in 2020 and can accommodate 7.20% of the area with a tsunami vulnerability level in the very red zone (areas with a high level of vulnerability to tsunamis).
Identifikasi Penentuan Skala Prioritas Penanganan Banjir Di Kecamatan Koto Tangah Kota Padang Salsabila, Aisyah; Febrianto, Hary; Mariati, Heny
Jurnal Azimut Vol 7 No 2 (2025): Vol. 7 No. 2
Publisher : Universitas Tamansiswa Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31317/jaz.v7i2.1341

Abstract

Determining the priority scale for handling inundation or flooding in Koto Tangah District is very important to optimize the use of resources, minimize social and economic impacts, and improve the effectiveness of mitigation measures. This study aims to (1) determine the extent of the area affected by flooding in Koto Tangah District, Padang City; and (2) determine the priority scale for flood management in Koto Tangah District, Padang City. The data processing method used to determine the extent of flood-affected areas employed the Backscattering Thresholding Algorithm obtained from Google Earth Engine (GEE), utilizing ArcMap 10.8 software for flood area calculation. To determine the priority scale for flood management, a scoring method and hierarchical quantitative analysis were applied using a Geographic Information System (GIS). Based on the research results, it can be concluded that the flood-affected area in Koto Tangah District covered 9.92 km², with two villages having the largest flood impacts, namely Dadok Tunggul Hitam Village and Parupuk Tabing Village. The results of determining the flood management priority scale showed that the highest scores were obtained by Batipuh Panjang Village and Lubuk Buaya Village, which were categorized as Priority 1.
DAMPAK PERUBAHAN LAHAN SAWAH MENJADI LAHAN PERMUKIMAN TERHADAP PRODUKSI PADI DI KECAMATAN KOTO TANGAH Januardi, Deni; Mariati, Heny; Yulianita, Yulianita
Jurnal Azimut Vol 7 No 2 (2025): Vol. 7 No. 2
Publisher : Universitas Tamansiswa Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31317/jaz.v7i2.1343

Abstract

This study aims to analyze the conversion of paddy fields into residential land and its impact on rice production in Koto Tangah District, Padang City. The research method used was descriptive quantitative by utilizing Landsat 8 satellite imagery from 2013 and 2024, rice production statistical data, and Geographic Information System (GIS) analysis. The research stages included image correction, land use classification, map overlay, calculation of land area changes, and estimation of rice production. The results showed that residential land area increased by 1,169.65 hectares, from 1,966.66 hectares in 2013 to 3,136.31 hectares in 2024. Meanwhile, paddy field area experienced a slight increase of 13.59 hectares, from 1,699.82 hectares to 1,713.41 hectares. The increase in paddy field area contributed to an increase in rice production of 78.82 tons. However, land use changes among villages were uneven, as several areas experienced a decline in paddy field area due to development pressure. The main factors influencing land use change were population growth, residential needs, and land economic value. Therefore, sustainable paddy field protection policies are needed to maintain regional food security
Co-Authors Afandi, Roky Febrianto, Hary Januardi, Deni Muhammad Fajri Osronita, Osronita Putri, Desi Eka Roberto, Roberto Salsabila, Aisyah Suryani, Novelisa Tresia, Intan Mastura Yulianita, Yulianita