METHANE GHG EMISSION ANALYSIS SUPPORTS REGIONAL ACTION PLANS FOR MITIGATION AND ADAPTATION TO THE IMPACTS OF CLIMATE CHANGE IN SITUBONDO REGENCY

Mochamad  Thohiron; Faez M.  Hassan; Achmadi  Susilo; Dwie Retna  Suryaningsih; Achmad  Wicaksono

doi:10.53067/ijomral.v3i2.212

Authors

Mochamad Thohiron Wijaya Kusuma University
Faez M. Hassan Mustansyiriah University
Achmadi Susilo Wijaya Kusuma University
Dwie Retna Suryaningsih Wijaya Kusuma University
Achmad Wicaksono Nadlatul Ulama University

DOI:

https://doi.org/10.53067/ijomral.v3i2.212

Keywords:

methane, mitigation, global warming, regional action plan

Abstract

The study aims to inventory and analyze GHG methane (CH₄) emissions to support RAD in mitigation and adaptation of PI Situbondo Regency. It is hoped that the results of the research can be used as input for the Regional Government in designing implementable mitigation and adaptation actions. The scope of the research in the Situbondo Regency area was six months. Research methods: 1) Tier-1 IPCC Guidlines (IPCC, 2006) for numerical equation analysis of methane gas, and 2) analysis of remote sensing and numerical spatial data on cloud-based digital platform Java script Google Earth Engine (GEE) and Google Colaboratory Research (GColab) 2023, image digitization and outlating in QGIS software. Research data: 1) activity data based on producing sectors, methane emission factors, and farmer group mitigation options questionnaires; and 2) remote sensing data access to the methane gas datasets Sentinel-5P OFFL CH₄: Offline Methane, and MOD11A1.061 Terra Land Surface Temperature and Emissivity Daily Global 1km. Research results: the transportation sector emits the highest methane gas (tons of CO₂ eq) at 378,486; agriculture 249,580.74; industrial energy 30,533.58; and the lowest livestock 6,364. Remote sensing results: an increase in methane gas emissions during the analysis period. The lowest CH₄ gas emissions were respectively in 2017, 2019 and 2021, respectively 0.74 g/m²; 1.79 g/m²; and 1.85 g/m²; and the highest respectively at 4.56 g/m²; 10.95 g/m²; and 23.90 g/m² in the same year. The lowest temperature increased in 2017, 2019, then decreased in 2021 to 19^oC, 21^oC and 18^oC respectively. The highest temperature increased in 2017, 2019, and decreased in 2021 respectively 39^oC, 40^oC and 38^oC. Increasing methane gas emissions are correlated with the lowest and highest LST from 2017-2021 with a correlation of R ≥ 0.6 (0.6-0.9).

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