Results 11 to 20 of about 1,913,213 (331)

Simulation of red tide drift-diffusion process in the Pearl River Estuary and its response to the environment

open access: yesFrontiers in Marine Science, 2023
A particle tracking model for the Lingdingyang Bay of the Pearl River Estuary (PRE) was established based on the Delft3D model. The model was initialized with remote sensing images to simulate the red tide drift-diffusion process in this sea area in the ...
Yuanxing Xu   +5 more
doaj   +2 more sources

Red Tide Detection Method for HY−1D Coastal Zone Imager Based on U−Net Convolutional Neural Network

open access: yesRemote Sensing, 2021
Existing red tide detection methods have mainly been developed for ocean color satellite data with low spatial resolution and high spectral resolution.
Xin Zhao   +6 more
doaj   +2 more sources

Derivation of Red Tide Index and Density Using Geostationary Ocean Color Imager (GOCI) Data

open access: yesRemote Sensing, 2021
Red tide causes significant damage to marine resources such as aquaculture and fisheries in coastal regions. Such red tide events occur globally, across latitudes and ocean ecoregions.
Min-Sun Lee   +2 more
doaj   +2 more sources

Dinoflagellate vertical migration fuels an intense red tide. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Significance Extremely dense harmful algal blooms (HABs) are an increasing problem globally. How microscopic, single-celled organisms can reach such high abundances is still poorly understood.
Zheng B   +8 more
europepmc   +2 more sources

An assessment of trends in the frequency and duration of Karenia brevis red tide blooms on the South Texas coast (western Gulf of Mexico). [PDF]

open access: yesPLoS One, 2020
Limited data coverage on harmful algal blooms (HABs) in some regions makes assessment of long-term trends difficult, and also impedes understanding of bloom ecology.
Tominack SA   +4 more
europepmc   +2 more sources

PIRT: A Physics-Informed Red Tide Deep Learning Forecast Model Considering Causal-Inferred Predictors Selection

open access: yesIEEE Geoscience and Remote Sensing Letters, 2023
In this letter, a Physics-Informed Red Tide (PIRT) forecast model considering causal-inferred predictors selection is proposed. Specifically, the directed acyclic graph-graph neural network (DAG-GNN) method is first applied to quantify the causality ...
Bin Mu   +4 more
semanticscholar   +1 more source

Red tide monitoring method in coastal waters of Hebei Province based on decision tree classification

open access: yesApplied Mathematics and Nonlinear Sciences, 2022
According to the water characteristics of the coastal waters of Hebei Province, this paper selects the data of the Marine Environmental Quality Bulletin of Hebei Province from 2009 to 2018 published on the website of the Department of Natural Resources ...
K. Yan   +4 more
semanticscholar   +1 more source

Dissolved Organic Matter and Activities of Extracellular Enzymes in Two Lagoons (South China Sea) Affected by Aquaculture

open access: yesFrontiers in Marine Science, 2022
Xincun Lagoon and Li’an Lagoon are typical tropical lagoons containing unique seagrass meadow and mangrove forest ecosystems. However, nutrient pollution from human activities threatens ecosystem health in these areas.
Linjian Ou   +6 more
doaj   +1 more source

Spatial-temporal distribution of red tide in coastal China

open access: yesIOP Conference Series: Earth and Environment, 2021
The frequent occurrence of red tides in China’s coastal areas has caused huge losses to society and economy, and seriously threatened the coastal marine environment and ecological security.
Xinyue He   +4 more
semanticscholar   +1 more source

A red tide in the pack ice of the Arctic Ocean. [PDF]

open access: yesSci Rep, 2019
In the Arctic Ocean ice algae constitute a key ecosystem component and the ice algal spring bloom a critical event in the annual production cycle. The bulk of ice algal biomass is usually found in the bottom few cm of the sea ice and dominated by pennate
Olsen LM   +13 more
europepmc   +2 more sources

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