45 results about "Coastal sea" patented technology

The present application belongs to the technical field of structural wind resistance design, and particularly relates to a typhoon full-path simulation method based on conditional generative adversarial network. The present application firstly establishes a typhoon occurrence probability model and a typhoon movement speed random generator, generates random samples of typhoon movement speed under given 250hPa and 850hPa height air flow conditions, and simulates typhoon movement trajectory; then establishes a typhoon intensity model to simulate typhoon intensity evolution; based on the randomly generated typhoon path and intensity samples, the basic meteorological parameters of each point of the coastal shoreline are statistically compared with historical data; a typhoon three-dimensional nonlinear boundary layer wind field model is established to simulate typhoon annual extreme wind speed samples, and a typhoon ground surface annual extreme wind speed probability distribution is established. The present application establishes a nonlinear mapping relationship between typhoon movement and intensity change and environmental variables, and reflects the non-Gaussian probability characteristics of typhoon intensity evolution.

The invention provides an offshore marine floating garbage salvage ship, relates to the technical field of marine floating garbage collection, and solves the problems that existing offshore marine floating garbage salvage is low in efficiency, high in cost, poor in environmental protection property, few in informatization equipment and the like. The ship comprises a ship body, a power system, an electric power system, a control system, a navigation system, an alarm system, a drainage system and a garbage collection system, and the power system comprises an angle-adjustable outboard outboard engine installed at the stern of the ship body, a diesel oil cabinet installed at the bottom in a cabin of the ship body and a driving operation system arranged in a cockpit of the ship body; the electric power system comprises a storage battery arranged in a tail peak tank of the ship body, a solar photovoltaic panel installed on the outer top of a cockpit of the ship body and a photovoltaic controller. The device has the beneficial effects that the device is suitable for operation in areas such as near-shore water areas, estuaries and ports, can efficiently collect sea floating garbage, and is flexible to operate, low in cost, good in environmental protection performance, complete in equipment and safer.

This invention discloses a method for retrieving global ocean optical attenuation coefficients based on remote sensing reflectance. It obtains the remote sensing reflectance at any wavelength below the sea surface and the ratios related to inherent optical quantities using satellite-provided remote sensing data. For clear seawater and relatively clear coastal seawater, the QAA_v5 algorithm is used to obtain the absorption and backscattering coefficients at any wavelength; for turbid coastal seawater, the QAA-RGR algorithm is used. Different models for solving the scattering coefficients are used for different sea areas. The global ocean optical attenuation coefficient is obtained by adding the absorption and scattering coefficients. This invention divides the global ocean into regions and provides models for solving the absorption and scattering coefficients for different regions. It can directly calculate the optical attenuation characteristics of different sea areas using satellite-provided data, improving the reliability of solving the optical attenuation coefficient and enabling dynamic monitoring of the variation of the global ocean optical attenuation coefficient.

The invention discloses a coastal to deep sea wind energy resource refined evaluation method and system, and relates to the technical field of renewable energy sources in the climate resource development and utilization field, and the method comprises the steps: constructing a Fujian province national meteorological observation station, an ocean buoy station, reanalysis data, an offshore anemometer tower and other multi-source gradient anemometer databases; the hourly 1 * 1km high temporal-spatial resolution 0-300m gradient wind energy resource fine evaluation method based on WRF numerical mode simulation of an optimization design scheme is developed; and researching and developing WTGS exceeding probabilities and thresholds of different levels of wind speeds during the influence of the tropical cyclones, determining available wind speed, early warning wind speed and defense wind speed regions for wind resource development, and drawing a risk zoning map for development and utilization of wind farms from coastal to deep sea. Meanwhile, an offshore wind energy resource refined evaluation system is researched and developed, wind energy resource refined evaluation and developable potential estimation at different heights from the coastal sea to the deep sea are achieved, and wind energy resource development and utilization risk level zoning at any grid point in different sea areas is achieved.

The invention relates to a regional offshore sea surface temperature inversion method based on LGBM-MLP. The method comprises the following steps: constructing a data set; wherein the data set comprises the microwave radiation data of the earth surface and the atmosphere, the sea surface temperature data and the related data of the reanalyzed ocean atmosphere; the data set is preprocessed; based on the preprocessed data set, training the LGBM-MLP hybrid model to obtain a sea surface temperature inversion model; and carrying out regional offshore sea surface temperature inversion based on the sea surface temperature inversion model. According to the LGBM-MLP-based regional offshore sea surface temperature inversion method, sea air environment information is fully fused, and environment characteristics of brightness temperature data can be better captured, so that the regional offshore sea surface temperature inversion precision is improved.