Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Geographia: Jurnal Pendidikan dan Penelitian Geografi
Cahyadi Nugroho
Manado State University

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

Found 2 Documents
Search

 1 
Analisis temporal pola sebaran eceng gondok di danau Tondano menggunakan indeks NDVI berbasis citra sentinel 2A sebagai upaya dalam pengelolaan danau Rifka Mokoagow; Joyce Christian Kumaat; Cahyadi Nugroho; Jolanda Esther Kaihatu; Xaverius Erick Lobja; Maxi Tendean
GEOGRAPHIA: Jurnal Penelitian dan Pendidikan Geografi Vol. 7 No. 1 (2026): June
Publisher : Jurusan Pendidikan Geografi, Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/gppngs47

Abstract

Lake Tondano has experienced uncontrolled water hyacinth growth, which has negatively affected water quality and aquatic ecosystems. This study aimed to analyze the distribution and density of water hyacinth and its relationship with environmental factors, particularly wind direction and nutrient availability. The study was conducted using a quantitative descriptive approach with the NDVI method based on multi-temporal Sentinel-2A satellite imagery from 2023 to 2025. The results show that the area of water hyacinth fluctuates over time, covering 324.58 ha in April 2023, decreasing in September, increasing again in October, and reaching the highest extent of 371.82 ha in April 2024, while the lowest area of 205.94 ha occurs in October 2024. Spatially, a distribution shift occurs in 2023, whereas a relatively stable pattern with dominance in the eastern part of Lake Tondano is observed during 2024–2025. These patterns indicate that dominant wind direction and nutrient availability play important roles in controlling the spatial dynamics of water hyacinth in Lake Tondano
Coastal resilience in Semarang city: findings from a focus review Ulfa Della Nova Tilova; Karina Meiyanti Maulana; Raudatul Jannah; Anindya Puspita Putri; Cahyadi Nugroho
GEOGRAPHIA: Jurnal Penelitian dan Pendidikan Geografi Vol. 7 No. 1 (2026): June
Publisher : Jurusan Pendidikan Geografi, Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/5pzz5n12

Abstract

Semarang City, a rapidly urbanizing coastal city on the northern coast of Java, Indonesia, faces escalating threats from tidal flooding (rob), land subsidence, sea level rise, and climate change. This article synthesizes findings from four peer-reviewed studies addressing community adaptation strategies, barriers to climate adaptation, probabilistic flood forecasting systems, and the role of community leadership in strengthening adaptive capacity. Using a purposive focused review approach, the study identifies cross-cutting insights into how coastal communities respond to recurring environmental hazards. The analysis is framed by socio-ecological resilience theory, adaptive governance, and community-based adaptation perspectives. The findings show that most residents prefer in-situ adaptation rather than relocation due to strong social attachment and livelihood dependence. Institutional and financial constraints remain the main barriers to effective climate action at the city level. The review also highlights the potential of a pre-running database probabilistic flood forecasting framework as a scalable and resource-efficient early warning system for data-scarce environments. In addition, community leaders play a critical role in linking households with information, resources, and collective action. Overall, the study emphasizes the importance of integrated, multi-level governance combining infrastructure development, adaptive planning, community empowerment, and early warning systems to strengthen long-term coastal resilience in Semarang and other Global South coastal cities.
Co-Authors Anindya Puspita Putri Jolanda Esther Kaihatu Joyce Christian Kumaat Karina Meiyanti Maulana Maxi Tendean Raudatul Jannah Rifka Mokoagow Ulfa Della Nova Tilova Xaverius Erick Lobja