Article
Environmental Sciences
Yujeong Choi, Kyungsun Yang, Min Young Lee, Suk Hyun Youn, Moonho Son, Sang Rul Park, Tae-Hoon Kim
Summary: By studying SGD and nutrient fluxes in Ihotewoo Bay and Bangdu Bay, Jeju Island, Korea from November 2019 to July 2020, it was found that tidal pumping is the primary driving mechanism of SGD. Although the average annual SGD-driven nutrient fluxes were 24-37% lower in Bangdu Bay than in Ihotewoo Bay, massive Ulva blooms only occurred in Bangdu Bay, which can be attributed to longer residence time and continuous SGD input with high dissolved inorganic nitrogen.
MARINE POLLUTION BULLETIN
(2023)
Article
Water Resources
Hyejung Jung, Kyoochul Ha, Dong-Chan Koh, Yongcheol Kim, Jeonghoon Lee
Summary: Through PCA and correlation analysis, the study identified vulnerable index wells to droughts, reducing monitoring expenses. Additionally, the study found that variables affecting groundwater-level variations differed with temporal resolution changes, emphasizing the importance of a comprehensive groundwater management plan with proper monitoring during droughts.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2021)
Article
Multidisciplinary Sciences
Sei-Woong Choi, Jeong-Seop An, Jae-Young Lee, Kyung Ah Koo
Summary: The study investigated the diversity pattern of moth assemblages on Mount Hallasan, South Korea over a 12-year period. The results showed that the number of moth species and individuals did not significantly change, except at high-elevation sites. Energy availability and evapotranspiration were found to be closely related to species and individual numbers. The species composition did not greatly change during the study period, except at the lowest and highest elevations, where turnover and nestedness were observed. Considering the limited habitat range of moths and the results of the study, climate change is inferred to have impacted the diversity and species composition of moths on the island mountain.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Jianqu Chen, Xunmeng Li, Kai Wang, Shouyu Zhang, Jun Li
Summary: In this paper, we used multispectral UAV data combined with statistics and machine learning to assess the biomass of intertidal seaweed. The results show that the gradient boosting decision tree algorithm can accurately evaluate the biomass of seaweed in the intertidal zone.
Article
Environmental Sciences
Eunhye Kwon, Jonghoon Park, Won-Bae Park, Bong-Rae Kang, Beom-Seok Hyeon, Nam C. Woo
Summary: This study developed a vulnerability model for nitrate contamination using a geographic information system (GIS) and found a strong correlation between groundwater nitrate distribution and vulnerability. In the southern and northern regions, low nitrate concentrations in groundwater were observed due to heavy urbanization, leading to negligible vulnerability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
M. O. Akrong, A. K. Anning, G. N. D. Addico, K. A. A. deGraft-Johnson, A. Adu-Gyamfi, M. Ale, A. S. Meyer
Summary: The study investigated the diversity and abundance of seaweed species at five coastal sites in Ghana. Results showed considerable spatial and temporal variability in seaweed diversity and abundance across the studied sites, providing important baseline information for conservation and utilization of seaweeds in the region.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Wooseok Lee, Seyoung Mun, Song-Yi Choi, Dong-Yep Oh, Yong-Soo Park, Kyudong Han
Summary: The study compared the genomic structure variations between Jeju horses and Thoroughbred horses, revealing unique genetic differences in Jeju horses that may be under positive natural selection. Through whole genome sequencing analysis, a large number of single nucleotide polymorphisms, genomic insertions, and deletions were identified, with the potential for developing a molecular marker for species identification using digital PCR.
Article
Engineering, Electrical & Electronic
Ziqi Chen, Yanhong Zhang
Summary: With rapid urbanization, the urban heat island (UHI) effect is becoming more pronounced. This study focuses on identifying and evaluating the temporal-spatial variations and driving factors of UHI in Changchun city, Jilin province, in Northeast China. By utilizing satellite images and ancillary data, this study analyzes the variations of UHI effect over time and space, as well as its relation with urban development. The findings reveal the temporal variations of UHI based on air temperature and the spatial variations of UHI based on land surface temperature. The study emphasizes the importance of urban land planning for mitigating UHI effect and promoting sustainable urban development.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Green & Sustainable Science & Technology
Wonseob Song
Summary: This research focuses on the case study of Jeju Island in the Republic of Korea to emphasize the potential relationship between climate change response and sustainable tourism development. The article outlines how climate action congruent with climate change and sustainable tourism can be implemented on Jeju Island. Additionally, the link between climate change and sustainable tourism is explored by evaluating the likelihood of failure of climate change-response programs.
Article
Environmental Sciences
Gahyun Kim, Sang-Do Choi, Jong-Myoung Lim, Hyuncheol Kim
Summary: This study introduces an efficient method for determining 90Sr activity levels in seawater, reducing the processing time to less than 3 hours for 50 L of seawater. The proposed method utilizes chemical separation to achieve equilibrium of 90Y and 90Sr, resulting in a recovery rate of over 90% for 90Y. Investigations conducted in the ocean southeast of Jeju Island revealed a range of 90Sr activity concentrations from 0.57 to 1.0 Bq/m3, with no distinct temporal variation observed.
MARINE POLLUTION BULLETIN
(2023)
Article
Remote Sensing
Seongjun Kim, Chang Woo Lee, Hwan-Joon Park, Byoung-Doo Lee, Nam Young Kim, Jung Eun Hwang, Hyeong Bin Park, Jiae An, JuHyoung Baek
Summary: This study used UAV-based close-range photogrammetry to investigate the floristic patterns of 26 inaccessible coastal cliffs. The results showed that the aspect and elevation of the cliffs were related to the number and composition of plant species. These patterns corresponded to different microclimates and provided valuable insights into plant ecology under harsh environments.
Article
Marine & Freshwater Biology
Rosa Melo, Isabel Sousa-Pinto, Sara C. Antunes, Isabel Costa, Debora Borges
Summary: This study evaluated the temporal and spatial variation of seaweed assemblages at an exposed rocky shore in Northern Portugal, finding seasonal variation at low-shore and significant spatial variation for Chondracanthus acicularis at both shore levels. The research highlights the ecological importance of certain species and provides baseline data for future management plans.
JOURNAL OF SEA RESEARCH
(2021)
Article
Environmental Sciences
Rongzhi Tang, Xiuli Zhang, Yunwei Li, Yu Tan
Summary: Continuous BC measurements were performed at two roadside sites in Yantai, showing high pollution levels and biomass burning as the main source. Weekdays had higher pollution levels compared to weekends, with lower reduction rates during nighttime. Potential responsible areas were found in the middle and west Shandong region.
Article
Environmental Sciences
Charlotte R. Dromard, Jean-Pierre Allenou, Nathalie Tapie, Helene Budzinski, Nicolas Cimmaterra, Pauline De Rock, Salim Arkam, Sebastien Cordonnier, Jean-Louis Gonzalez, Yolande Bouchon-Navaro, Claude Bouchon, Emmanuel Thouard
Summary: This study conducted in Galion Bay, Martinique, aimed to highlight the variations of chlordecone contamination in seawater and marine organisms over different seasons. The results showed significant temporal variations in seawater contamination, with different levels of pollution observed among the marine habitats. Isotope analyses indicated bioamplification along marine food webs at each season and each station.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geography, Physical
Christine Yiqing Liang, Paul Simon Kench, Murray Robert Ford, Holly Kate East
Summary: This study examines the evolution of lagoonal reef islands in Huvadhoo atoll, southern Maldives, and reveals significant differences in the timing and mode of island formation compared to rim islands. The formation of lagoonal islands post-dates the formation of rim islands by 1000-2000 years, and the lagged reef growth response from deeper foundations likely contribute to this difference.
