📄 earth science

A Three-Component Spliced Lognormal-Weibull-K Distribution Framework for Seasonal Modeling of Significant Wave Height in the Abadi-1 Masela Offshore Area

This study proposes a novel three-component spliced Lognormal–Weibull–K distribution framework to accurately model the seasonal variability of significant wave height across low, moderate, and upper-tail regimes in the Abadi-1 Masela offshore area, demonstrating its superior capability for assessing operational risks compared to single-distribution models.

Gysberth Maurits Wattimena, Sefnath Johanes Wattimena, Roy Robert Lekatompessy2026-10-23
📄 earth science

Urban green space research, knowledge gaps and opportunities for advancing nature-based solutions: Lessons from Bangladesh

This paper analyzes the decline of urban green space in Bangladesh driven by rapid urbanization, identifies critical knowledge gaps and policy shortcomings in advancing Nature-based Solutions, and proposes five holistic strategies—encompassing planning, policy, collaboration, equity, and science—to guide future improvements.

Ronju Ahammad, Maruf Rahman Maxim, Arif M. Faisal, Panna Husnain2026-10-23
📄 earth science

Seasonal water stress in a hyperhumid forest: evidence from multiple tree-ring variables and dekadal climate analysis

Despite receiving over 4000 mm of annual rainfall, a Japanese cedar forest in Yanase, Japan, exhibits seasonal water stress during the previous July that significantly influences tree growth, as evidenced by correlations between modeled soil water and multiple tree-ring variables.

Hitoshi Yonenobu, Koh Yasue, Yasuharu Hoshino, Motonari Ohyama, Genki Katata2026-10-23
📄 earth science

Source Mechanism of the Mw 6.4 Nicobar earthquake of July 28, 2025: constraints from GNSS and strong motion accelerograph observations

This study demonstrates that high-frequency GNSS and strong-motion accelerograph data, despite sparse station coverage and large azimuthal gaps, can reliably estimate the source mechanism of the July 28, 2025, Mw 6.4 Nicobar earthquake, thereby aiding rapid tsunami hazard assessment in the Andaman-Nicobar region.

Nidhi Parashar, S. Shivaprasad, Neeraj Gurjar, Himangshu Paul, Vineet K. Gahalaut2026-10-23
📄 earth science

Remote sensing as a tool for assessing landslide impacts on coastal waters at Porchat Island (SE Brazil)

This study demonstrates that high-frequency, high-resolution remote sensing using Sentinel-2 and PlanetScope imagery effectively quantified the temporary but significant increase in turbidity and sediment concentration in coastal waters near Porchat Island, Brazil, following a 2025 pipeline rupture, thereby validating the utility of such tools for rapid impact assessment and coastal management.

Thainá de Oliveira Altafini, Beatriz Silva Fernandes, Breylla Campos Carvalho2026-10-23
📄 earth science

Multi-Indicator Satellite-Based Monitoring of Water Quality Dynamics in Freshwater Reservoirs

This study utilizes an integrated Sentinel-2 framework to analyze spatial and seasonal water quality dynamics in Pakistan's Khanpur and Simly reservoirs, demonstrating that multiple optical indicators effectively distinguish contrasting seasonal regimes and offer a valuable satellite-based complement to conventional monitoring in data-scarce regions.

Kamran Aslam, Salman Atif, Muhammad Zeeshan, Ali Tahir2026-10-23
📄 earth science

From Local Initiatives to National Systems: Mapping the Landscape of Landslide Early Warning in Latin America

This paper maps the operational landscape of twenty-five landslide early warning systems across ten Latin American countries, revealing that while historical rainfall thresholds remain dominant, the region's primary challenges are insufficient monitoring density and institutional gaps rather than technical limitations, necessitating a shift toward sustained financing, local ownership, and actionable community engagement over further technological sophistication.

Johnny Vega, Isabela Taici Lopes Gonçalves Horta, Derly Gómez, Mario Ernesto Reyes, Elías García-Urquía, Adolfo Quesada- (…)2026-10-23
📄 earth science

Multivariate assessment of spatiotemporal water-quality patterns across anthropogenic-pressure zones in Lake Guamuez, a high- Andean Ramsar wetland

This study utilized multivariate statistical analyses to characterize distinct spatiotemporal water-quality patterns across five anthropogenic-pressure zones in Lake Guamuez, revealing that the navigation channel exhibits the most degraded conditions and highlighting the need for synchronized, source-oriented monitoring in this high-Andean Ramsar wetland.

Edgar Andrés González Legarda¹, Guillermo Duque¹2026-10-23
📄 earth science

Key Informants’ Perspectives on Rural Water Sustainability Governance in the Shoalhaven Region of Australia

This study utilizes key informant interviews in Australia's Shoalhaven region to reveal that rural water sustainability is hindered by crisis-driven funding, urban-rural investment disparities, and fragmented governance, prompting six structural reform proposals to better align rural water management with Sustainable Development Goals.

Niruban Chakkaravarthy Dhanasekaran, Basant Maheshwari, Michelle Donovan-Mak, Samsul Huda2026-10-23