Bachelor : Bandung Institute of Technology, Geodetic Engineering
Master: Bandung Institute of Technology, Geodetic and Geomatics
Doctor: IPB University, Environmental Science
Spatial modelling of mangrove AGC stock using vegetation indices and LULC changes in coastal area of Teluknaga and Kosambi, Indonesia Ramzan Pradana Maulsyid, Willdan Aprizal Arifin, Yulius, Taslim Arifin, Anang Dwi Purwanto, et al. Anthropocene Coasts, 2026 Mangrove ecosystem along the coast of Indonesia has experienced degradation and loss of carbon stocks due to extensive coastal development and land conversion. This study aims to develop a spatial model for estimating Above-Ground Carbon (AGC) stocks in the mangrove forests of Teluknaga and Kosambi in 2019, 2022, and 2025. Using Sentinel-2 satellite imagery, Land Use and Land Cover (LULC) was classified using the Random Forest (RF) algorithm, resulting in five main classes including water bodies, mangrove, vegetation, bareland, and built-up area. Vegetation indices (NDVI, EVI, SAVI, and ARVI) were specifically calculated for mangrove areas to construct a linear regression model against the reference AGB values obtained from secondary data. Results indicate that ARVI is the best predictor (R 2 = 0.80; RMSE = 40.98). The maximum AGC value recorded was 177.47 MgC ha −1 in 2019, decreasing to 153.36 MgC ha −1 in 2022 and plummeting to 111.62 MgC ha −1 in 2025. This decline is also reflected in the total carbon stock in the study area, which fell from 987,973.4 MgC to 595,583.8 MgC. This is related to the reduction in mangrove area from 368.45 ha in 2019 to 261.16 ha in 2025. Spatially, the conversion of mangrove to bareland and built-up area reached a total of 122.72 ha, with a predominance of conversion to bareland (78.66 ha) and to built-up area (44.06 ha). This study presents novelty through the utilisation of LULC changes as a spatial approach in estimating carbon reserves and provides a scientific basis for the protection of mangrove ecosystems amidst coastal development pressures.
The spatio-temporal analysis of land use changes & above-ground carbon stock in Sumbawa mangrove ecosystem, Indonesia Jaka Putra Rahmajati, Vina Nurul Husna, Yulius Yulius, Taslim Arifin, Hadiwijaya L. Salim, et al. Anthropocene Coasts, 2026 Mangrove deforestation in Indonesia amounts to roughly 18,209 ha per year (18.26 MtCO₂e/year −1 ). However, spatial and temporal integrative research in eastern Indonesia's coastal areas remains limited. This study aims to analyse mangrove forests' condition and spatio-temporal changes, compute above-ground carbon (AGC) as a basis for sustainable coastal management in Sumbawa Regency and support the 2030 Nationally Determined Contribution (NDC) target. This research merges UAV-RGB data (July 2024) and multitemporal PlanetScope imagery (2016 and 2024) to develop a Canopy Height Model (CHM) and calculate the AGC. Land use classification was accomplished using Object-Based Image Analysis (OBIA)—Random Forest (RF), while changing trends were assessed using Modules for Land Use Change Evaluation/Simulations (MOLUSCE). AGC at the study site was in the range of 21—168 $${\\text{MgC}.\\text{ha}}^{-1}$$ MgC . ha - 1 (mean = 72.3 $${\\text{MgC}.\\text{ha}}^{-1}$$ MgC . ha - 1 , total = 8,999.9 $$\\text{MgC}$$ MgC . The investigation found a change of 37.89 ha of mangrove area to barren and shrubland, resulting in an AGC loss of 2,739.5 $$\\text{MgC}$$ MgC . However, there has been an increase in land use and changes in aquaculture and agriculture. This study proposes a novel approach by merging UAV data and time-series satellite images to increase the accuracy of AGC prediction in data-sparse locations. A nature-based Solution (NbS) is advocated as an integrated method for adaptive mangrove restoration and conservation, while still supporting the demands of the local community. This research presents a geographical framework that may be duplicated to create inclusive and adaptable coastal resource management plans and directly contribute to reaching the 2030 NDC targets.
MAPPING OF CORAL REEF HABITATS USING SPOT-7 AND SENTINEL-2 SATELLITE IMAGERY IN LIANG AND RAKIT ISLANDS, SALEH BAY, INDONESIA Syamsul B. Agus, A. S. Maulana, Taslim Arifin, . Yulius, Aprizon Putra, et al. Geography Environment Sustainability, 2026 Coral reef ecosystems are vital for marine biodiversity, coastal protection, and local livelihoods, yet environmental and anthropogenic stressors increasingly threaten them. Accurate and timely mapping of these habitats is essential for effective management and conservation planning. This study aims to evaluate and compare the spatial distribution and extent of coral reef habitats around Liang and Rakit Islands, as well as to assess the classification accuracy of Sentinel-2 Level-2A and the SPOT-7 satellite imagery for the years 2016 and 2021. Both datasets were pre-processed through atmospheric and sun-glint corrections, with SPOT-7 imagery further enhanced by water column correction using the Lyzenga algorithm. Supervised classification in ENVI was used to map four shallow-water habitat classes (coral reef, seagrass, sand, and rubble), and classification accuracy was assessed using confusion matrices to compute Producer Accuracy (PA), User Accuracy (UA), and Overall Accuracy (OA). Across both islands, coral reef and seagrass each occupied roughly one quarter of the mapped shallow-water area, while sand and rubble together accounted for about half of the area, indicating a heterogeneous mosaic of fringing reefs and seagrass meadows interspersed with sandy and rubbly substrates. Maps derived from SPOT-7 imagery produced higher overall accuracies (84% for Liang and 82% for Rakit) than those derived from Sentinel-2A imagery (76% and 70%, respectively). SPOT-7-based classifications consistently delineated larger and more detailed extents of coral reef and seagrass habitats, demonstrating the value of higher-resolution imagery for representing fine-scale features in optically complex coastal environments, whereas Sentinel-2A imagery was more suitable for broad-scale habitat discrimination but tended to underestimate narrow or fragmented patches.
DETERMINATION OF MARINE ECOTOURISM ZONES ON PISANG ISLAND – PESISIR BARAT, INDONESIA USING MARXAN ZONING Asykorini SHABRINA, Yulius YULIUS, Syamsul B. AGUS, Taslim ARIFIN, Aprizon PUTRA, et al. Geojournal of Tourism and Geosites, 2026 Pisang Island on Pesisir Barat has great potential to be developed as a marine ecotourism destination, particularly due to its coral reef ecosystem, seagrass beds, and beautiful, picturesque beaches. However, when developing this tourism, it is important to consider the balance between ecosystem protection and the economic needs of coastal communities, so that the ecosystem remains sustainable. This study aims to determine sustainable marine ecotourism zones using Marxan. We integrated ecological variables— bathymetry, brightness, current velocity, coral reefs and seagrass cover beds—with social layers: jetties, boat sailing lanes, traditional fishing areas, and surfing spots. The integrated ecological data includes bathymetric maps from BATNAS, water brightness indices from Sentinel-2A image processing, surface current velocities from Copernicus Marine Service, and maps of coral reefs and seagrass bed distribution from Allen Coral Atlas. Socio-economic data was obtained by identifying jetties locations, boat sailing lanes, traditional fishing areas, and established tourist sites around Pisang Island. Three habitat protection targets (30%, 40%, 50%) were tested through Marxan Zoning on hexagonal planning units. The model results are displayed using the summedsolution frequency approach to see how often a unit is selected. After that, the zones are divided into four categories: core zone, buffer zone, marine ecotourism zone, and other zone. The results of the study indicate that Scenario A, with a protection target of 30%, is the most optimal choice, with an allocation of 120,670 ha (5.30%) for the ecotourism zone and 26,199 ha (1.15%) for the core zone. Scenario A is the most balanced approach in supporting marine ecosystem conservation and coastal community empowerment through tourism activities. This approach is considered the most balanced as it preserves marine ecosystems while providing space for tourism that supports local community economic benefits. These findings highlight the important role of Marxan as a data-driven spatial planning tool to support sustainable marine ecotourism management policies in Pisang Island.
Mapping and analyzing mangrove canopy density in East Belitung using Pleiades satellite imagery and hemispherical photography SB Agus, M Pasaribu, HL Salim, T Arifin, MA Kusumaningtyas, ST Hartati, ... The Egyptian Journal of Remote Sensing and Space Sciences 29 (2), 357-368 , 2026 2026
Revamping Digital Performance Evaluation Systems: Exploring Front-Line Managers’ Roles through an HR Co-Creation Lens M Ramdhan, M Ridwan, S Rahayu 2026
PENGARUH KOMUNIKASI DAN KOMPENSASI TERHADAP KINERJA KARYAWAN PT ANANDA PERKASA MULIA TANGERANG SELATAN M Yusuf, M Ramdhan, MA Noor Cakrawala: Jurnal Penelitian Mahasiswa 1 (2), 164-177 , 2026 2026
PENELUSURAN TINGKAT CEMARAN SALMONELLA SP. PADA MAKANAN JAJANAN KANTIN SEKOLAH STUDI KASUS: KOTA BOGOR W Ermawati, PA Siregar, M Ramdhan Jurnal Teknologi Pangan dan Gizi (Journal of Food Technology and Nutrition … , 2026 2026
Mapping of Coral Reef Habitats Using Spot-7 And Sentinel-2 Satellite Imagery in Liang and Rakit Islands, Saleh Bay, Indonesia SB Agus, AS Maulana, T Arifin, A Putra, M Ramdhan, A Heriati, ... GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 19 (1), 6-16 , 2026 2026
Integrated Land–Sea Spatial Planning for Disaster Risk Reduction in Tanah Laut Regency, South Kalimantan, Indonesia KP Setiawan, K Kasman, A Putra, B Budimawan, T Arifin, Yulius, ... Integrated Environmental Assessment and Management, vjag035 , 2026 2026
THE EFFECT OF DIGITAL MARKETING STRATEGY AND BRAND AWARENESS ON CONSUMER PURCHASE DECISIONS AT BUTIK GUMUYU M Ramdhan Jurnal ASIK: Jurnal Administrasi, Bisnis, Ilmu Manajemen & Kependidikan 4 (1 … , 2026 2026
The spatio-temporal analysis of land use changes & above-ground carbon stock in Sumbawa mangrove ecosystem, Indonesia JP Rahmajati, VN Husna, Y Yulius, T Arifin, HL Salim, R Rahmania, ... Anthropocene Coasts 9 (1), 13 , 2026 2026 Citations: 1
Spatial modelling of mangrove AGC stock using vegetation indices and LULC changes in coastal area of Teluknaga and Kosambi, Indonesia RP Maulsyid, WA Arifin, Yulius, T Arifin, AD Purwanto, A Putra, ... Anthropocene Coasts 9 (1), 6 , 2026 2026
Diagnosing Fisheries Sustainability Challenges in Mrica Reservoir, Indonesia: An Application of the D (A) PSI (W) R (M) Framework YC Ditya, L Adrianto, M Krisanti, S Hariyadi, AD Utomo, GR Manik, ... Journal homepage: http://iieta. org/journals/ijdne 21 (1), 139-150 , 2026 2026
Spatio-Temporal Variation of Sea Surface Temperature, Chlorophyll-A, and Wind Direction on Euthynnus Affinis Fishing Productivity in Fisheries Management Area 712 NI Nufus, Y Yulius, SB Agus, T Arifin, A Putra, HL Salim, R Rahmania, ... Egyptian Journal of Aquatic Biology and Fisheries 30 (1), 63-81 , 2026 2026
Determination of marine ecotourism zones on Pisang Island–Pesisir Barat, Indonesia using Marxan Zoning A Shabrina, Y Yulius, SB Agus, T Arifin, A Putra, R Rahmania, ... Geojournal of Tourism and Geosites 64 (1), 86-97 , 2026 2026 Citations: 2
Penerapan Prinsip Keadilan dalam Pembagian Risiko Kontrak Proyek Oil And Gas. M Ramdhan Journal of Syntax Literate 11 (1), 362 , 2026 2026
Spatial transformation and toponomastic dynamics in Indonesia’s Nusantara capital: an anthropolinguistic inquiry into culture, history, and geographic characteristics EW Istiqomah, W Sumadio, M Ramdhan, Y Yulius, A Putra, HL Salim, ... GeoJournal 91 (1), 3 , 2025 2025 Citations: 3
THE INFLUENCE OF CURRICULUM RELEVANCE AND TEACHER COMPETENCE ON STUDENT SATISFACTION AT PKBM ANANDA BAIK ISLAMIC SCHOOL CIANJUR M Ramdhan Jurnal ASIK: Jurnal Administrasi, Bisnis, Ilmu Manajemen & Kependidikan 3 (3 … , 2025 2025 Citations: 2
Environmental Monitoring of Shallow Marine Waters Using AI and Remote Sensing: A Systematic Literature Review A Sartono, M Darmawan, F Ramadhani, M Ramdhan, S Safitri, B Sutejo Environmental Quality Management 35 (1), e70148 , 2025 2025 Citations: 1
Habitat assessment of Whale sharks (Rhincodon typus) in Saleh Bay, indonesia: linking chlorophyll-a and sea surface temperature using aqua modis data TP Herdianti, ASB Yulius, T Arifin, A Putra, J Prihantono, A Heriati, ... Geographia Technica 20 (2), 52-64 , 2025 2025 Citations: 4
Tantangan Tuberkulosis di Jabodetabek Menuju Indonesia Emas 2045 W Ermawaty, M Ramdhan Jurnal Riset Jakarta 18 (1), 35-48 , 2025 2025
Potensi Penggunaan Nanoteknologi untuk Ekstraksi Obat Diabetes dari Daun Sukun di Kepulauan Seribu, Jakarta Utara PA Siregar, M Ramdhan Jurnal Riset Jakarta 18 (1), 19-34 , 2025 2025
Linking Trophic State Index to High Resolution Satellite Imagery Data of Mrica Reservoir, Banjarnegara–Central Java YC Ditya, M Ramdhan, S Kaban, G Wahyudewantoro, S Kusumo, ... Geographia Technica 20 (2) , 2025 2025
MOST CITED SCHOLAR PUBLICATIONS
Aplikasi sistem informasi geografis dalam penilaian proporsi luas laut Indonesia M Ramdhan, T Arifin Jurnal Ilmiah Geomatika 19 (2), 141-146 , 2013 2013 Citations: 67
The Role of Innovative Work Behaviour, Organizational Citizenship Behaviour on Job Satisfaction and Job Performance of Tourisme as an Impact of Covid19 Pandemic M Ramdhan, M Ridwan, JC Saksana, A Firdaus, HA Firmansyah Rigeo 11 (10) , 2021 2021 Citations: 65
Analisis persepsi masyarakat terhadap kebijakan restorasi lahan gambut di Kalimantan Tengah M Ramdhan 2018 Citations: 35
Permasalahan sampah di kota bogor sebagai wilayah penyangga dki jakarta M Ramdhan, E Hermawan Jurnal Riset Jakarta 15 (2), 77-86 , 2022 2022 Citations: 32
Perencanaan dan pengembangan SDM M Ramdhan Literasi Nusantara , 2023 2023 Citations: 29
Pengelolaan wilayah gambut melalui pemberdayaan masyarakat desa pesisir di kawasan hidrologis gambut Sungai Katingan dan Sungai Mentaya Provinsi Kalimantan Tengah M Ramdhan Jurnal Segara , 2018 2018 Citations: 29
Buku Pedoman Kriteria Penetapan Zonasi Ekowisata Bahari RR Yulius, UR Kadarwati, M Ramdhan, T Khairunnisa, D Saeuloh, ... IPB Press. Bogor. Bogor , 2018 2018 Citations: 27
Forecasting land-use changes due to coastal city development on the peri-urban area in Makassar City, Indonesia T Arifin, SN Amri, R Rahmania, M Ramdhan, H Chandra, L Adrianto, ... The Egyptian Journal of Remote Sensing and Space Science 26 (1), 197-206 , 2023 2023 Citations: 26
How The Role Of Electronic Human Resource System (E-System), Environment, Job Satisfaction On Employee Performance? An Empirical Study On Private Bank Employee M Ramdhan International Journal Of Artificial Intelegence Research 6 (1), 2579-7298 , 2022 2022 Citations: 25
Effect of motivation and work experience on employee performance at pt. perkasa sakti in cimone M Ramdhan Kontigensi: Jurnal Ilmiah Manajemen 7 (2), 139-148 , 2019 2019 Citations: 20
Pengaruh lokasi dan kondisi parameter fisika-kimia oseanografi untuk produksi rumput laut di wilayah pesisir Kabupaten Takalar, Sulawesi Selatan M Ramdhan, T Arifin, IS Arlyza Jurnal Kelautan Nasional 13 (3), 163-171 , 2018 2018 Citations: 20
Komparasi Hasil Pengamatan Pasang Surut Di Perairan Pulau Pramuka Dan Kabupaten Pati Dengan Prediksi Pasang Surut Tide Model Driver M Ramdhan Jurnal Segara 7 (1), 1-10 , 2011 2011 Citations: 19
The Effect of Training, Leadership, And the Work Environment on Employee Performance at Tribe Fire Fighting and Rescue City Administration of West Jakarta M Ramdhan, U Rusilowati, RP Elburdah, A Sundari Calitatea 24 (195), 204-209 , 2023 2023 Citations: 18
Towards water sensitive city: lesson learned from Bogor flood hazard in 2017 M Ramdhan, H Susilo Arifin, Y Suharnoto, S Darma Tarigan E3S Web of Conferences 31, 09012 , 2018 2018 Citations: 18
Pengelolaan budidaya rumput laut berbasis daya dukung lingkungan perairan di pesisir Kabupaten Dompu, Provinsi Busa Tenggara Barat Y Yulius, M Ramdhan, J Prihantono, D Gunawan, D Saepuloh, HL Salim, ... Jurnal Segara 15 (1), 19-30 , 2019 2019 Citations: 17
Effect of Compensation And Job Satisfaction on Employee Performance at PT. Tata Logam Lestari In Jakarta Barat M Ramdhan Pinisi Discretion Review 3 (2), 349-360 , 2020 2020 Citations: 16
Survey Identifikasi pulau-pulau tenggelam di Teluk Jakarta M Ramdhan, SN Amri, DG Priyambodo Jurnal Riset Jakarta 12 (1), 1-6 , 2019 2019 Citations: 15
Assessment of underground water quality in Karimunjawa Island, Central Java–Indonesia J Prihantono, Y Yulius, S Husrin, M Ramdhan, WA Gemilang Jurnal Segara 17 (1), 23-32 , 2021 2021 Citations: 14
Effect of Compensation and Service on Employee Performance at PT. Infomedia Nusantara in Jakarta M Ramdhan Kontigensi: Jurnal Ilmiah Manajemen 8 (2), 170-180 , 2020 2020 Citations: 14
Budi daya Rumput Laut dan Pengelolaannya di Pesisir Kabupaten Dompu, Provinsi Nusa Tenggara Barat Berdasarkan Analisa Kesesuaian Lahan dan Daya Dukung Lingkungan Y Yulius, M Ramdhan, J Prihantono, DG Pryambodo, D Saepuloh, ... Jurnal Segara 15 (1), 19-30 , 2019 2019 Citations: 14
