Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)

A Generalization of Marstrand’s Theorem and Some Geometric Applications

Abstract In this paper we prove using quite elementary methods, with a combinatorial nature, two general results related to Marstrand’s projection theorem in a quite general formulation over metric spaces under a suitable transversality condition (the “projections" are in princip...

Measurement report: Development of a portable peroxy radical measurement system and application for diagnosing local ozone formation and transport

Abstract. Atmospheric total peroxy radicals RO2* (RO2∗=HO2+∑RO2) play central roles in tropospheric chemistry, governing the formation of ozone and secondary aerosols. However, due to their extremely low concentrations and high reactivity, direct observation of RO2* remains chall...

New species and suborder records reveal unusually high thaliacean (Chordata, Tunicata) diversity in the South China Sea

In the context of global biodiversity decline, the monitoring and assessment of marine biodiversity have gained increasing importance. Thaliacea, a group of filter-feeding gelatinous zooplankton, play crucial roles in the carbon cycle and pelagic food webs, yet their diversity re...

Mélange diapir origin for Neo-Tethyan ridge-subduction magmatism

The mélange diapir model invokes physical mixing of partially melted slab components with mantle wedge peridotite, enabling material transfer from the subducted slab to the overlying mantle wedge. However, identifying distinctive igneous rock suites generated through this process...

Satellite Altimetry Reveals an Eddy Train Along the Ross Sea Shelf Break

Abstract Oceanic circulation along the Antarctic shelf break regulates heat and material exchanges between the continental shelf and the open ocean, playing a crucial role in ice shelf melting and global overturning circulation. However, the circulation remains poorly understood...

Physiological, Transcriptomic, and Metabolomic Insights into Ammonia-Nitrogen Stress in the Hepatopancreas of Litopenaeus vannamei Acclimated to Low Salinity

Elevated ammonia nitrogen significantly reduces the survival rate of Litopenaeus vannamei under low-salinity conditions. Low-salinity culture is widely adopted in shrimp farming but susceptible to ammonia accumulation; however, relevant studies mainly focus on juvenile shrimp und...

Cavity-Size-Dependent Recognition of Naphthalene Derivatives by 3,3′-Bipyridinium Tetracationic Cyclophanes

The recognition behavior of tetracationic cyclophanes is strongly influenced by the geometric match between the host cavity and aromatic guests. Herein, we compare two 3,3′-bipyridinium-based tetracationic cyclophanes, BPy-Box⁴⁺ and NBox⁴⁺, toward a series of naphthalene derivati...

AOPQ-Net Acoustic–Optical Proposal Query Network for Underwater Multimodal Object Detection

Optical cameras and imaging sonars are widely used sensors in autonomous underwater vehicles. However, their different imaging mechanisms introduce substantial cross-modal discrepancies in the acquired data. In addition, underwater optical images are often degraded by low illumin...

A total infectome framework for resolving complex disease etiology in aquaculture

Traditional pathogen isolation can establish disease causality but often fails in complex infections involving unknown or multiple microbial backgrounds, whereas metatranscriptomics comprehensively captures the total infectome without directly resolving the primary etiological ag...

Drivers of flash flood frequency and intensity in the United States: a quantitative analysis of hydrometeorological interactions

Abstract. Inconsistent changes in precipitation and flooding have spurred investigations into the underlying mechanisms, yet the quantitative understanding of interactions between precipitation, temperature, and land cover in streamflow dynamics remains limited. We investigate st...

Oceanic Thermal and Storm Dynamic Controls on Precipitation Variability of Landfalling Typhoons in Zhejiang Province, China (2000–2025)

Landfalling typhoons frequently cause severe flooding and socioeconomic losses along the eastern coast of China, yet the relative influence of oceanic and storm-related factors on precipitation variability remains insufficiently understood. This study investigates the relationshi...

Comparative Genomics and Functional Evidence for Convergent Adaptation to Hypoxia in Mammals

The independent evolution of hypoxia tolerance across phylogenetically distinct species, including marine mammals, highland species, and subterranean mammals, represents a classic example of convergent evolution. Although these taxa produced similar physiological solutions to add...

Advancing boundary-layer physics via Doppler wind LiDAR dynamic-thermodynamic profiling

Simultaneous, high-resolution measurements of boundary-layer dynamics and thermodynamics remain a longstanding observational challenge. We present a Doppler wind LiDAR–based retrieval that derives virtual potential temperature from TKE-budget buoyancy residuals, enabling concurre...

Modulation of the Relationship Between ENSO and the Intensity of the South China Sea Summer Monsoon by Quasi‐Biennial Oscillation

ABSTRACT This study investigates how boreal winter equatorial stratospheric quasi‐biennial oscillation (QBO), defined by 70‐hPa zonal winds, modulates the El Niño–Southern Oscillation (ENSO)–South China Sea summer monsoon intensity (SCSSMI) relationship during 1952–2020 using the...