Jurnal Sains Geografi

Penggunaan SIG Untuk Menentukan Biaya dan Melihat Integrasi Transportasi Umum KRL dan Transjakarta di Jakarta

Sadam Sadam — 2024-05-27

Jakarta as the center of economic activity and a city with a large population. This city needs public transportation that can cover the entire area. In addition, public transportation also needs to be integrated to facilitate mobility from one mode of transportation to another. However, the ignorance of residents about the cost and integration of public transportation in Jakarta is a factor that makes them choose to use personal vehicles. To overcome this problem, researchers conducted research using Geographic Information Systems (GIS) using descriptive methods with buffering analysis techniques to determine the integrity between KRL stations and Transjakarta bus stops and also using measure tools to determine the distance between stations. This research is purposed to find out the amount of KRL tariff that has been set by the government and to see whether public transportation between KRL and Transjakarta has been integrated or not. The results showed that only 22 out of 44 KRL stations were integrated with Transjakarta BRT stops. In addition, by using GIS, researchers can find out the actual distance between two KRL stations. This low percentage of public transportation integration shows that the government needs to play a role in building integrated public transportation. Public transportation integration will be able to increase public transportation users in Jakarta.

Kajian Literatur: Analisis Fenomena Gunung Lumpur Beserta Karakteristik Lumpur di Bledug Kuwu Jawa Tengah

Erinda Fazila Safitri — 2024-05-27

The phenomenon of the Bledug Kuwu mud volcano in Kuwu Village, Grobogan Regency, Central Java, has attracted attention as a natural resource with significant economic, industrial, ecological, and medical potential. This research consolidates previous findings to provide a comprehensive understanding of the characteristics and utilization potential of Bledug Kuwu mud. The research method employed is a literature review study, with descriptive analysis of data collected through article searches and information synthesis. The results reveal the characteristics of the mud, including valuable mineral content such as lithium, kaolinite, and calcite, as well as the presence of halophilic bacteria with benefits in industry, environmental conservation, and medicine. In conclusion, Bledug Kuwu is not only a geological phenomenon but also a natural resource with significant economic, ecological, and medical value. This potential can be optimized through further research and sustainable technological development.

Keyword: Bledug Kuwu, Mud volcano, Mud characteristic, Mud utilization

Assessment of Coral Reef Health Conditions at Marine Tourism (Snorkeling) Locations on Southern Pari Island

Virsha Shofiyani — 2024-05-27

Pari Island, one of the islands in the Thousand Islands that has high marine tourism potential, one of which is snorkeling tourism. Pari Island is located in South Thousand Islands District, Thousand Islands Regency, DKI Jakarta Province. To maintain the sustainability of the coral reef ecosystem on this island, it is necessary to assess its health condition periodically. Coral reefs are important ecosystems that support biodiversity in the maritime environment. The condition of coral reefs on Pari Island is influenced by various factors, such as tourist activities, climate change, and pollution. This study aims to assess the health condition of coral reefs at marine tourism sites (snorkeling) on Pari Island. The study was conducted by field survey method at one observation point, located in the south of Pari Island with coordinates 5°52'11.3" S, 106°36'45.1" E using the Coral Health Chart method. About Coral Health Chart is a table that contains the hues of changing colors of coral reefs. This table can be used to monitor the health of coral reefs based on their color hue. The results showed that the condition of coral reefs on Pari Island in general was in sufficient to good condition.

Keyword : Coral reefs, Pari Island, Snorkling, Health Condition

Changes in Water Quality on the Sustainability of Seaweed Cultivation Business on Pari Island

Deyan Arum Sitaresmi — 2024-05-27

This research aims to analyze the water quality of Pari Island for seaweed cultivation. The main challenge involves the decline in seaweed production and quality, especially after the 2013 reclamation project. This research uses quantitative methods with primary and secondary data collection, water quality analysis involving parameters such as depth, temperature, salinity, pH and brightness, evaluated through the IDW method and weighting. The research results reflect an increase in temperature and salinity, resulting in a decrease in the quality of seaweed cultivation land on Pari Island. Reclamation factors and industrial activities also influence this condition. The seaweed cultivation land suitability map shows a significant decline from 2017 to 2023. The conclusion from research on changes in Pari Island's water quality regarding the sustainability of seaweed cultivation no longer supports optimal seaweed cultivation. The research recommendations highlight the need for sustainable planning and mitigating industrial impacts to support the growth of the seaweed cultivation industry on Pari Island.

Optimalisasi Metode Penyemaian Awan untuk Meningkatkan Curah Hujan

Nurinnadiyah Rahadatul 'Aisy — 2024-05-27

Water scarcity is a serious environmental issue impacting many countries worldwide. Cloud seeding is a technology aimed at increasing rainfall by adding certain chemicals to clouds. Cloud seeding can enhance rainfall by up to 10%, which can support the water needs of additional households annually. The purpose of this literature review is to identify the most effective cloud seeding methods. The search was conducted using the SCOPUS database. The articles found were then selected based on their titles, keywords, and abstracts to ensure relevance to the research topic, resulting in 7 relevant articles. The literature review revealed various cloud seeding methods, such as Weather Research and Forecasting (WRF) cloud seeding, hygroscopic cloud seeding, and ECMWF cloud seeding. Based on an analysis of the advantages and disadvantages of these three cloud seeding methods, the most effective method is WRF cloud seeding because it is highly flexible and can be adapted to various weather conditions and topographies.

Keywords: Water scarcity, cloud seeding, and WRF

Pemetaan kerapatan bangunan pada tahun 2018 dan 2023 menggunakan Normalized Difference Built-Up Index (NDBI) di Kota Sukabumi

Deffry Muhammad — 2024-05-27

The growth of regional development activities in Indonesia has recently begun to grow very rapidly, especially in land use that has begun to be converted. Sukabumi city is one of the cities in Indonesia with continuous development. The NDBI method is a way to detect the index variable of built-up land. In 2018, it shows that the Sukabumi city area is dominated by non-built-up land, which is 3561.17 ha and the smallest is very dense settlements, which is 1.08 ha. In 2023, it is dominated by undeveloped land with an area of 3562.84 ha and the smallest area in very dense settlements with an area of about 0.3 ha only. undeveloped land has an additional land area of 0.02% or 1.67 ha. An increase also occurred in settlements with a sparse density of 1.12% or 28.43 ha. Settlements with a tight density have an inverse trend from the previous 2 classifications, decreasing by 44.78% or 29.34 ha. Then in settlements with very dense density, it has a downward trend of 57.06% or 0.78 ha. This is a fairly good trend, where there is an increase in undeveloped areas and a reduction in land with a tight and very tight density.