04. Trường Đại học Khoa học tự nhiên (University of Science)
Tài nguyên nội sinh
Các bộ sưu tập số Luận văn Thạc sĩ, Luận án Tiến sĩ, Đề tài Báo cáo khoa học… của Thư viện Trường ĐH. Khoa học tự nhiên – ĐHQG-HCM được xây dựng nhằm hỗ trợ cho hoạt động giảng dạy và nghiên cứu của Nhà trường.
Duyệt 04. Trường Đại học Khoa học tự nhiên (University of Science) theo Tác giả "Amir Yarkhasy, Yuliardi"
- Ấn phẩmSpatiotemporal analysis of sea surface temperature and chlorophyll-a variability under ENSO-IOD influence in the Southern Madura Strait, Indonesia(Viện Địa lý, Viện Hàn lâm Khoa học và Công nghệ Việt Nam, 2025-11) Amir Yarkhasy, Yuliardi; Gandhi, Napitupulu; Herlambang Aulia, Rachman; Harmon, Prayogi; Marita Ika, Joesidawati; Viv Djanat, PrasitaA dynamic interplay between local oceanographic processes and large-scale climate drivers shapes tropical coastal ecosystems. Yet, their coupled responses remain poorly quantified in many regions of the Indonesian Maritime Continent. This study examines the spatiotemporal variability of sea surface temperature (SST) and chlorophyll-a concentrations in the southern Madura Strait, utilizing 15 years (2010–2024) of monthly MODIS-Aqua observations, in conjunction with Niño 3.4 and Dipole Mode Index (DMI) time series to characterize ENSO and IOD phases. Monthly climatologies revealed a pronounced SST annual cycle, with peak warming during December-February (DJF) and March-May (MAM) (±31°C) and basin-wide cooling during June-August (JJA, ±28°C). Chlorophyll-a exhibited strong spatial heterogeneity, with the highest biomass (>10 mg/m³) consistently observed in the western sector during DJF and MAM, likely reflecting monsoon-driven circulation and terrestrial nutrient inputs. Composite analyses revealed that La Niña and negative IOD phases increased productivity through surface cooling and nutrient enrichment. In contrast, El Niño and positive IOD phases resulted in compound warming events that suppressed chlorophyll-a. Lagged correlation analyses further revealed that chlorophyll-a responses typically lag climate anomalies by one to two months, underscoring the temporally asynchronous nature of climate-ecosystem interactions. These results provide new process-based insights into how ENSO-IOD interactions regulate tropical coastal productivity, highlighting the importance of incorporating climate drivers and temporal lags into forecasting and adaptive fisheries management frameworks to maintain ecosystem resilience under future climate variability.