17 results about "Upwelling" patented technology

The invention provides a construction method of an enteromorpha green tide biomass estimation and near-shore disaster risk prediction model, and belongs to the technical field of marine environment. Multispectral remote sensing image data of a target sea area is collected, and an upwelling spectrum recognition function and a bubble interference removal function are used for constructing an enteromorpha upwelling spectrum matrix; an enteromorpha bubble spectrum matrix is established based on a gain spectrum difference function and a drift correction function to realize accurate spectrum identification, an enteromorpha gain biomass matrix is established through processing of a spectral feature extraction function and a biomass estimation function, and a near-shore disaster risk prediction model is established based on a risk assessment function. Dynamic adjustment and optimization are carried out through a sea area optimization model, integrated modeling of accurate identification of enteromorpha spectral characteristics, accurate estimation of biomass, movement track prediction and coastal risk assessment is realized, and the technical problems that the estimation precision of enteromorpha green tide biomass is insufficient and spatial-temporal dynamic prediction of coastal disaster risks cannot be realized are solved.

The invention provides a method for distinguishing chlorophyll a concentration of an upwelling region influenced by different types of cyclones, and relates to the technical field of ocean remote sensing and environment monitoring. Preliminarily judging the influence of vortex on chlorophyll a concentration distribution; dividing the research area into a near-shore area and a far-shore area according to the water depth, respectively drawing vortex center-chlorophyll a concentration fusion maps for the two areas, and comparing the influence of cyclone and anti-cyclone of the two areas on chlorophyll a concentration distribution; dividing the vortex into a near-shore vortex and a far-shore vortex according to the ratio of the distance from the vortex center to the coastline to the vortex radius, respectively drawing vortex center-chlorophyll a concentration fusion graphs, and comparing the influence of cyclone and anti-cyclone on the chlorophyll a concentration distribution; and matching the temperature and salt data of the Argo buoy with the vortex position, analyzing the correlation between the potential density abnormity and the chlorophyll a concentration, and distinguishing the influence mechanism of vertical nutrition input and horizontal advection on the chlorophyll a concentration.

The application provides a method for vortex-uplift flow coordinated regulation chlorophyll-a concentration variability, relates to the field of ocean remote sensing and environmental monitoring technology, obtains multi-source satellite and reanalysis data set, constructs smooth time series; identifies dominant variability period in chlorophyll-a concentration, sea surface temperature and sea surface height anomaly, extracts monthly anomaly value sequence; applies complex empirical orthogonal function analysis to sea surface height anomaly, extracts its dominant spatial variability mode, identifies vortex distribution position and shape; according to vortex type and season, classifies and filters target vortex, carries out normalization processing to chlorophyll-a concentration and aligns to vortex center, analyzes spatial response relationship between vortex and chlorophyll-a concentration; in combination with surface chlorophyll-a concentration, sea surface height anomaly and vertical Argo buoy data, density time-depth profile graph and CHL-SLA composite graph are drawn, and the influence mechanism of vortex-uplift flow on chlorophyll-a horizontal distribution is analyzed.

A detection apparatus 1 for detecting an upwelling region includes: a simulation unit 11 for simulating sea surface temperature data, chlorophyll-a concentration data, and ocean current velocity data of regions in the ocean; a preprocessing unit 12 for creating a ground truth label of an upwelling region on the basis of a vertical velocity included in the ocean current velocity data; a classification unit 14 for training a learning model for outputting a classification result of an upwelling region in response to the input of sea surface temperature data and chlorophyll-a concentration data, wherein the training is performed by inputting the simulated sea surface temperature data and chlorophyll-a concentration data to the learning model, and further inputting the ground truth label of the upwelling region to the learning model; and a detection unit 17 for acquiring a classification result of an upwelling region in the ocean from the learning model by inputting sea surface temperature data and chlorophyll-a concentration data of the ocean acquired from a satellite to the learning model.

The utility model discloses a sand coring engineering driller which comprises a coring driller which comprises a mast assembly and a mast base. The stabilizing assembly comprises a first fixing plate, a first hydraulic push rod, a second fixing plate, a second hydraulic push rod, a movable plate, a fourth through hole, a supporting column, a supporting disc and a spring, the first fixing plate is fixed to the side edge of the mast base, the first hydraulic push rod is fixed to the first fixing plate, and the second fixing plate is fixed to the movable end of the first hydraulic push rod. The second hydraulic push rod is fixed to the second fixed plate. The movable plate is fixed to the movable end of the second hydraulic push rod. The utility model solves the problems that the working place of the sand field coring drilling machine is on the beach sand field, the beach sea surface has the characteristics of soft stratum, high water content and the like, and silt at the bottom of a drill hole upwells along with water along with the deepening of the drilling depth, so that the contact part of the mast base and the sand field is loosened, and the mast is unstable.

The present application relates to the technical field of marine environment monitoring, in particular to a kind of network layout design method for exchange area sea environment observation of submarine and buoy, comprising: the core channel coordinate set of Indonesian through flow is extracted by multi-scale process identification algorithm, the spatiotemporal distribution matrix of Java upwelling intensity and monsoon influence weight coefficient;Based on observation platform adaptation model, typical marine process characteristic parameters are matched with sensitive sea area operation constraint condition, and platform type combination scheme is generated;Fixed-mobile platform joint data transmission link is constructed, and the topology graph of collaborative observation strategy is output;Using nested observation optimization algorithm, according to the characteristics of core channel area, upwelling area and monsoon influence area, high, medium and low sampling frequency are configured, and multi-resolution nested layout scheme is generated.The present application can realize the unity of spatial partition refinement, platform configuration collaboration and data acquisition high adaptability, and significantly improve the coverage integrity of Indo-Pacific exchange area sea environment observation network.

The invention belongs to the technical field of ocean energy utilization, and particularly relates to an ocean energy utilization device which comprises a sealed cabin, a sleeve shell and an oscillating floater. The oscillating floater is driven by sea waves to move up and down, and the sleeve shell rigidly connected with the oscillating floater and the middle column penetrating through the sealed cabin are driven to synchronously reciprocate; the upper section of the middle column directly drives the linear generator to generate power to complete core energy conversion; when the piston head moves upwards, cold seawater is sucked in through a filter plug at the tail end of the water inlet pipe, and at the moment, a one-way valve I is opened; when the piston head is pressed downwards, the first one-way valve is closed, seawater is pressurized, pumped into the flow guide grooves in the two sides of the interior of the sealed cabin and ascends along the grooves to flow through the cabin wall of the linear generator to be actively cooled, and the seawater absorbing heat jacks open the second one-way valve and is discharged from the water outlet pipe. Part of discharged water flow is evenly sprayed on the outer wall of the sealed cabin through a collector ring on the inner side of the supporting bridge, and the cleaning effect of the first scraping ring and the second scraping ring fixed to the sleeve shell in the follow-up scraping process is enhanced.

This invention belongs to the field of coastal ecological restoration and marine aquaculture technology. Specifically, it is an artificial composite reef structure, including a base. The base is a trapezoidal frame structure with multiple frame columns inside. The base columns are fixedly connected to the surface of the base, and the base columns are fixedly connected to the sleeves. The sleeves are slidably connected to the telescopic columns, and the telescopic columns are threadedly connected to the surface of the telescopic columns. The other end of the telescopic columns passes through the sleeves and the base columns, making a slidable connection. By combining the frame-type base with upwelling reefs and bird-standing stakes, a two- or three-layer artificial composite reef structure is formed, creating a multifunctional marine biological reef environment. This overcomes the problems of the single function and limited environment of ordinary biological reefs. It not only has a wider range of applicability, but also organically combines the two- or three-layer structure to create a multifunctional marine habitat, forming a three-in-one marine ecosystem integrating sea, land, and air.

A large nuclear-powered ship, such as a repurposed aircraft carrier or a large cargo ship, is outfitted with a plurality of large downward-directed subsurface mixer propellers secured on its sides and / or ends. The propellers are positioned below the bottom of the ship and have blade lengths in the range of 10-60 m. They are coupled to the ship's steam turbines by drive shafts and gearing compatible with the required propeller power and rotational rates, typically 25-150 MW per mixer propeller and with blade tip speeds typically around 40 m / s. They produce a large-diameter low-velocity downward plume of surface sea waters below the ship that induces upwelling of cold nutrient-rich deep waters in areas where the cyclone genesis index is high. The downward mass-flow magnitude (typically 3-30 times the flow rate over Niagara Falls, but at only a few m / s) is on the scale needed for a small number of such ships to essentially end cyclone genesis in the Atlantic. At the same time, the induced upwelling of nutrient-rich deep waters is expected to lead to the newly mixed areas becoming highly productive fishing areas.

The embodiment of the invention discloses an artificial breeding fish releasing site selection method, device and equipment and a storage medium, and relates to the technical field of water conservancy project ecological protection, and the method comprises the steps: determining the optimal flow velocity interval for the survival and inhabitation of target fishes through sampling the relationship between the distribution number of the target fishes and the flow velocity of the distribution site; obtaining an upstream induction flow velocity of the target fish by using a fish swimming ability test; establishing a hydraulic model based on the operation condition of the release area reservoir area, and calculating the flow velocity spatial distribution of the release area reservoir area under the target condition through the hydraulic model; and determining a target releasing site according to the flow velocity spatial distribution, the optimal flow velocity interval for survival and inhabitation of the target fish and the induction flow velocity for upstream tracking of the target fish. The technical problems that in the prior art, an empirical fish releasing method is adopted, so that the survival rate of fishes is not controlled, and the proliferation effect is poor can be solved.

The BioFan fluid theory, which has been developed as a principle for water cultivation since 2006 and has achieved numerous successes, is the culmination of a theory based on energy conservation. Because it was designed so that a large amount of energy is not consumed in the flow rising from the seabed, there was a problem in that it could not directly draw up large amounts of water from the seabed of deep lakes, bays, or oceans. [Solution] A new theory was constructed to directly draw large amounts of water from depths where photosynthesis is declining. By introducing three design condition equations to fully satisfy this theory, it became possible to regenerate large and deep lakes, bays, and oceans into abundant fishing grounds and suppress the ocean acidification that is currently a problem.

The utility model discloses a seawater filter device of high pressure seawater pump, including filter device main part, flange cover and fastener, the upper surface fixed mounting of filter device main part has flange cover, the upper surface of flange cover and located the edge position inlayed with fastener, the inside inlayed of filter device main part has filter core, the movable cover of filter core's surface is equipped with rotating part, the inside lower fixed mounting of filter device main part has base, the side surface fixed mounting of base has support block. The utility model discloses a seawater filter device of high pressure seawater pump, when seawater enters the inside of filter device main part, and the seawater of fast upwelling can drive no.

The present application belongs to the technical field of river and lake ecological dredging equipment, and particularly discloses a spiral propelling underwater ecological dredging robot, which comprises a dredging cover for forming a closed operation interval underwater, and a perforated isolation plate is fixedly connected to the inner side of the dredging cover for separating the dredging cover into a filtering cavity and a dredging cavity distributed in an upper and lower manner; a double-spiral propelling stirring system is installed on the inner side of the dredging cover. The present application integrates an independently controllable internal circulation hydraulic flushing system, combines layered screening and double-mode reclamation, is suitable for different properties of bottom mud, and simultaneously avoids the blockage of bottom mud impurities. The "one body and two uses" mode directly sucks the silt through the lower cabin reclamation when the bottom mud impurities are less; the upper cabin mud discharge mode can be selected when the impurities are more to reduce the blockage; in the process of screening, the hydraulic flushing and the resulting upward flow rate also synchronously realize the screening of the bottom mud particle size, and the silt particle size selection type dredging is accurately realized.

This invention relates to the field of water treatment technology and discloses a method for treating black and odorous water bodies, comprising the following steps: S1: placement and preparation of a mixing jet mechanism; S2: stirring the water body to induce an upwelling flow; S3: adding photo-oxidation activating materials to the water body; S4: dissolving pollutants in the water body and activating the sediment and indigenous microorganisms in the water body. The technical solution of this invention can solve the problems of unstable water quality, high investment costs, easy recurrence of black and odorous water bodies, and potential secondary environmental pollution existing in current black and odorous water body treatment technologies.

The present application relates to the technical field of deep-sea polymetallic nodule rapid collection device, and proposes a deep-sea polymetallic nodule rapid collection device with an aggregated upwelling flow field configuration, which solves the problems of uneven flow field distribution, high energy consumption, low collection channel conveying efficiency and low collection rate. The device comprises a double-shot collection head, a ring-shaped jet system, a beam structure and a central control system. The double-shot collection head comprises a front row jet system, a rear row jet system, a horizontal jet system, a guide plate and a collection channel. The ring-shaped jet system is arranged inside the double-shot collection head and located at the intersection of the guide plate and the collection channel. The ring-shaped jet system comprises a ring-shaped channel, a ring-shaped nozzle arranged on the inner side of the ring-shaped channel, a fixed frame arranged at the outer end of the ring-shaped channel and a spiral groove engraved on the inner wall of the ring-shaped channel.

The application belongs to the technical field of artificial upwelling generating device, and proposes a water product breeding upwelling generating device design method and upwelling generating device. The setting of the circular pipe in the breeding area comprises: one end of the circular pipe is fixed through a floating ball and a cable connected between the floating ball and the circular pipe; the other end of the circular pipe is fixed through a fixing device fixed to the seabed and a cable connected between the fixing device and the circular pipe; and the circular pipe is obliquely arranged in seawater at a designed circular pipe inclination. The device has simple structure, low manufacturing and operation cost, and the circular pipe obliquely arranged in seawater can realize the purpose of upwelling of the lower layer seawater under the action of the flow rate of the lower layer seawater, without other power devices, and can be accepted by water product breeders and achieve good effect. Meanwhile, the circular pipe inclination is determined according to the flow rate of the lower layer seawater, the distance from the bottom end face of the circular pipe to the seabed and the length of the circular pipe, so that the upwelling effect of the lower layer seawater can be optimized.

The invention relates to the technical field of deep-sea polymetallic nodule rapid harvesting devices, provides a deep-sea polymetallic nodule rapid harvesting device with an aggregation upwelling flow field structure, and solves the problems of non-uniform flow field distribution, high energy consumption, low collection channel conveying efficiency and low collection rate. Comprising a bijection collection head, an annular jet flow system, a beam current structure and a central control system, and the bijection collection head comprises a front-row jet flow system, a rear-row jet flow system, a horizontal jet flow system, a flow guide plate and a collection channel; the annular jet system is arranged in the double-jet collecting head and located at the intersection of the flow guide plate and the collecting channel, and the annular jet system comprises an annular channel, an annular nozzle arranged on the inner side of the annular channel, a fixing frame arranged at the outer end of the annular channel and a spiral groove carved in the inner wall of the annular channel.