In our research, simulation experiments of the hydrodynamic environment in the Lingdingyang Bay sea area of the PRE are carried out with the Delft3D-FLOW and the simulation of red tide drift-diffusion is conducted by coupling the D-WAQ PART. The PRE is located in the subtropical monsoon region, which is obviously affected by the monsoon. Little river sc marine forecast center. Keywords: red tide, drift-diffusion process, Lingdingyang Bay, Delft3D, particle tracking. 1 College of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang, China.
In the sea area near Shenzhen Airport, the tidal current was relatively small, so the north-south drift-diffusion distance of the red tide was small (Figures 9A, B). 19 m. The MAE of water level of Chiwan is 0. The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. However, more complex water quality and ecological models are needed to study the accurate red tide process, including considering the effects of light, temperature, salinity and nutrients on the growth and death of algae (Zhou et al., 2021), and the vertical movement of algae (Qi et al., 2017). C., Sabatier F., et al. Sandy Hook to Manasquan Inlet - Text. Little River, SC Marine Weather Forecast. 2019) explained the source and transport mechanism of the red tide on the West Florida continental shelf in 2018 by combining the measured data and the circulation numerical model. The total runoff data of each station in wet season: Humen accounts for 12. The tide stations are located on Shanban Island, Neilingding Island, and Chiwan. The range of skill value is between 0 and 1. Relevant research shows that wind forcing is an important factor in transporting algae cells onshore (Li et al., 2020b).
This includes searches by air and by boat, and with high-tech sonar equipment. More particles spread northward to Humen (negative value)(Figure 8B). Red tide detection based on high spatial resolution broad band optical satellite data. Forecasts for the Florida Keys.
In no event will the owners and contributors of this website be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this website. To further explore the influence of runoff on the red tide drift-diffusion process, we simulated the red tide diffusion without runoff input. 2 Particle tracking model. After a few days of extensive searching, the Coast Guard called their search off, but state and local agencies from both Carolinas have continued their search around the clock. The runoff of the Pearl River decreases greatly in the dry season, and most of the water columns in the PRE are fully mixed (Lu and Gan, 2015). Shanbanzhou Island > Chiwan > Nelingding Island). Little river marine forecast sc. Forecasts for South Carolina Waters. Cape Charles to Currituck Beach 100 NM - Text.
The length from the estuary to the open shelf is about 60 km and the width is 10-60 km. 2 Comparison between particle drift-diffusion distribution and satellite observation. 2009) established a bio-physical model based on in-situ observations and Regional Ocean Modeling System (ROMS), to reproduce the hydrodynamics and the temporal and spatial distributions of cell concentration. Edited by:Lin Hui, Ministry of Natural Resources, China. Cape Hatteras to Ocracoke Inlet - Text.
To assess the particle tracking model, the particle diffusion results at the corresponding time is extracted from the model. Tyler Doyle's wallet found in NC waters. 1007/s12040-022-01811-6. The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation. Moreover, two experiments were conducted to explore the regional differences in red tide drift-diffusion. Figure 12 (A) Particles cloud distribution in sea area near Shenzhen Airport and (B) sea area near Neilingding Island. Red tide disasters statistics from the Guangdong Marine Disasters Bulletin 2020 show that in 2020, red tide occurred six times in total in the coastal waters of Guangdong Province, including four times in total recorded in the sea areas of the PRE. 4 Guangdong Engineering Technology Research Center for Ocean Remote Sensing and Information Technology, Zhanjiang, China. Murrells Inlet to South Santee River - Text. This study explores the impact of winds on the drift-diffusion of red tide through experiment 4. Li C., Odermatt D., Bouffard D., Wüest A., Kohn T. Coupling remote sensing and particle tracking to estimate trajectories in large water bodies. Figure 10 (A) Wind condition from Hong Kong International Airport meteorological station over the PRE; (B) Wind-induced current.
Without considering the process of algae generation and extinction, Soto et al. Citation: Xu Y, Sun Y, Xu G and Liu D (2023) Simulation of red tide drift-diffusion process in the Pearl River Estuary and its response to the environment. The red tide in the sea area near the northwest of Neilingding Island moved southward to the sea area near the west of the island, and part of the red tide moved to the sea area 11. Are trademarks of CustomWeather Inc.
The Cochlodinium geminatum red tide outbreak in the PRE in the autumn of 2020 is used as a case to analyze the temporal and spatial distribution characteristics of the red tide process, and explore its response to the environment, thus providing a solid reference for monitoring and forecasting red tides. Hayashi and Yanagi (2008) used an ecological model to analyze the changes in material cycle in the Yodo River Estuary of Japan and clarify the reasons for the changes in red tide species. In addition, the remote sensing observation is also uncertain. 2%, Hengmen accounts for 16. The simulations show that the red tide in the sea area near Shenzhen Airport mainly moved northward for a short distance (Figure 12A), whereas the red tide near Neilingding Island moved to the surrounding waters and drifted northeastward, merging with the red tide in the sea area near Shenzhen Airport (Figure 12B). 1 Influence of environments on red tide drift-diffusion process. Many scholars have successfully applied numerical simulation to the study of large-scale algal blooms. Deerfield Beach to Ocean Reef. 2021) studied the occurrence and extinction characteristics of mixed dinoflagellate red tide in the sea area near Dongtou and Nanji Islands, southern Zhejiang, based on field investigation and the satellite Aqua data from Moderate Resolution Imaging Spectro Radiometer (MODIS). 17 m and the RMSE is 0. Based on the remote sensing data, the instantaneous particle release time for the model was October 26, 2020, 04:00. It can be seen from the distribution of particles cloud during a whole tidal period (Figures 7A-C), that the red tide moved north during flood tide and moved south during ebb tide.
Dynamics of an intense Alexandrium catenella red tide in the gulf of Maine: satellite observations and numerical modeling. North-Northwest / 3sec. Three-dimensional tidal current models for the Lingdingyang Bay sea area of the PRE are established with nested. Figure 7 Particles cloud distribution results on (A) October 26, 04:00; (B) October 26, 14:00; (C) October 26, 21:00; (D) November 1, 11:00; (E) November 1, 16:00; and (F) November 1, 23:00. Morpho-sedimentary dynamics of torre guaceto beach (Southern Adriatic Sea, Italy). CustomWeather, Inc. Inc., All Rights Reserved. When the tidal current flowed through Qi'ao Island and Neilingding Island, part of the tidal current moved southwestward along Qi'ao Island and then flowed southward. Atlantic from 27N to 31N West of 77W - Text.
Therefore, this red tide had little impact on the upstream area. The outer domain covers the PRE and some waters outside the PRE (20. The model was initialized with remote sensing images to simulate the red tide drift-diffusion process in this sea area in the autumn of 2020 and analyze its response to tides, winds and runoffs. Cape Elizabeth, ME to Merrimack River, MA - Text. That hunter swam to the jetties and was rescued without injury. Data availability statement. In addition, the water depth data of Lingdingyang Bay is corrected with the high-accuracy electronic nautical chart drawn by the China Navy Hydrographic Office. Montauk Point to Sandy Hook out to 1000 Fathoms - Text. The drivers influencing the red tide drift-diffusion were analyzed through multiple control variable experiments. This paper uses the water level provided by the Guangzhou Port Authority () to validate the model's accuracy. High Seas (North of 31N to 67N and West of 35W).
The features of red tide drift-diffusion are analyzed by extracting the particles cloud distribution at different time points within one tidal period, coupled with water level variation during red tide (Figure 6) from the particle tracking model. Moriches Inlet to Fire Island Inlet - Text. D-WAQ PART is a random walk particle tracking model suitable for research application in a moderate scale range (200-15000m). Owing to the northwest wind-driven current and runoff, in the process of particles drift-diffusion in the sea area near Shenzhen Airport, the particles moved southward. 1007/s00343-019-8088-y. The authors are thankful to the National Satellite Marine Application Center for making available the HY-1C/HY-1D satellite data and for the data support. Long Island Sound west of New Haven, CT - Text.