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All Journal Socio-Economic and Humanistic Aspects for Township and Industry The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Desak Putu Okta Veanti
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Religion Arts Humanities Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media

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Analysis of Air Temperature Changes in East Nusa Tenggara Province Impacts of Climate Change for the Period 1971-2020 Rafif Firjatullah; Hasibuan, Muhammad Ansori; Aditya Prapanca; Desak Putu Okta Veanti
Socio-Economic and Humanistic Aspects for Township and Industry Vol. 1 No. 3 (2023): Socio-Economic and Humanistic Aspects for Township and Industry
Publisher : Tinta Emas Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/sehati.v1i3.156

Abstract

This study aims to analyse temperature changes in NTT Province over the past 50 years, by comparing two periods, namely period I (1971-2000) and period II (1991-2020). Statistical analysis methods were used to examine temperature differences between the two periods, calculate the percentage of temperature change, and present time series graphs of average monthly temperatures. In addition, spatial analysis was conducted to investigate the seasonal temperature changes of December, January, February (DJF); March, April, May (MAM); June, July, August (JJA); and September, October, November (SON) regionally in NTT Province. Temperature data for 50 years was obtained from the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis data, providing a strong basis for understanding the dynamics of temperature change with a high degree of accuracy. The results of this study show a steady increase in temperature in the 1991-2020 period by 0.894% compared to the 1971-2000 period, with a positive linear regression (0.0407), while the 1971-2000 period shows a less significant increase (0.0188). Spatial analysis shows a seasonal average temperature increase of 0.957°C in the 1991-2020 period. The findings on climate change characterised by temperature changes are expected to be the basis for more effective adaptation and mitigation policies in the face of climate change at the local level. This research is an important step in understanding the dynamics of climate change in vulnerable areas such as NTT Province.
Analysis of Trends in Rainfall Changes Based on ERA5 Reanalysis Data as an Impact of Climate Change in Yogyakarta Province for the Period 1970-2019 Aditya Prapanca; Hasibuan, Muhammad Ansori; Rafif Firjatullah; Desak Putu Okta Veanti
Socio-Economic and Humanistic Aspects for Township and Industry Vol. 1 No. 3 (2023): Socio-Economic and Humanistic Aspects for Township and Industry
Publisher : Tinta Emas Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/sehati.v1i3.157

Abstract

This study aims to analyse the trend of rainfall changes in Yogyakarta Special Region (DIY) Province during the period 1970-2019 based on ERA5 reanalysis data. The analysis method of this study involves the use of 50 years of ERA5 rainfall data with high spatial and temporal resolution. The data was processed using the Climate Data Operator (CDO) to obtain monthly average values in five specified periods. In Period I to II, there was an increase in rainfall of +8%, especially in 5 months ranging from 18% to 37%, while the other 7 months showed a downward trend. In Period II to III, rainfall decreased by -7%, mainly in 7 months ranging from 3% to 32%, while the other 5 months showed an increase. In Period III to IV, there was an even greater decrease in rainfall, reaching -8%, accompanied by a decrease in 9 months ranging from 2% to 58%, while the other 3 months showed an increase. In Period IV to V, there was again a significant increase of +12%, mainly during 10 months ranging from 2% to 97%, while the other 2 months showed a decrease. The increase in rainfall mainly occurs in certain time intervals, while the peak of rainfall tends to shift, indicating that climate change has occurred in Yogyakarta.
UTILISATION OF NASA - GFWED AND FIRMS SATELLITE DATA IN DETERMINING THE PROBABILITY OF HOTSPOTS USING THE FIRE WEATHER INDEX (FWI) IN OGAN KOMERING ILIR REGENCY, SOUTH SUMATRA Hermanto Asima Nainggolan; Desak Putu Okta Veanti; Dzikrullah Akbar
International Journal of Remote Sensing and Earth Sciences Vol. 17 No. 1 (2020)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2020.v17.a3202

Abstract

Prevention and mitigation of forest and land fires have important roles considering its various negative impacts. Throughout 2018, in Ogan Komering Ilir District, 864 hectares of land burned. This data increased significantly compared to the burned area in the previous year. Lack of field meteorological observation is still a problem in solving the problem of forest fire in the region. Consequently, we utilize NASA - GFWED and FIRMS satellite data to analyze the hotspots probabilities in Ogan Komering Ilir District, South Sumatra. Conditional probability analysis will be used to find out the likelihood of hotspots based on FWI and FFMC from 2001 to 2016. More than 50 percent of hotspots appear during extreme FFMC class and high to extreme FWI class. The probability of hotspots for extreme FFMC class and extreme FWI class varied between 0.3 to 10.4 % and 0.1 to 3.8 % respectively. Meanwhile, fire-prone areas with the highest density of fires are in the sub-district of Tulung Selapan, and the safest region is the Cengal sub-district.
Co-Authors Aditya Prapanca Dzikrullah Akbar Hasibuan, Muhammad Ansori Hermanto Asima Nainggolan Rafif Firjatullah