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32 results about "Sea level rise" patented technology

Since at least the start of the 20th century, the average global sea level has been rising. Between 1900 and 2016, the sea level rose by 16–21 cm (6.3–8.3 in). More precise data gathered from satellite radar measurements reveal an accelerating rise of 7.5 cm (3.0 in) from 1993 to 2017, which is a trend of roughly 30 cm (12 in) per century. This acceleration is due mostly to human-caused global warming, which is driving thermal expansion of seawater and the melting of land-based ice sheets and glaciers. Between 1993 and 2018, thermal expansion of the oceans contributed 42% to sea level rise; the melting of temperate glaciers, 21%; Greenland, 15%; and Antarctica, 8%. Climate scientists expect the rate to further accelerate during the 21st century.

Coastal zone dam stability monitoring and flooding vulnerability evaluation method and system

The invention belongs to the technical field of coastal zone dam monitoring, and discloses a coastal zone dam stability monitoring and flooding vulnerability evaluation method and system. The method comprises the steps of preparing a satellite-borne SAR single look complex image and global DEM data for assisting the InSAR time sequence analysis, and obtaining dam point cloud data, sea level risingdata and tide inspection data through employing an unmanned plane laser radar; carrying out data preprocessing to realize dam DEM generation, dam deformation rate acquisition, dam future DEM simulation and dam water level simulation; and performing flooding analysis to realize dam flooding analysis and dam flooding scene display. According to the invention, the combination of the satellite-borneInSAR time sequence analysis deformation rate and the unmanned aerial vehicle-mounted laser radar DEM is realized, and high observation precision and space-time resolution are ensured. According to the invention, three components (tidal component, storm water increase and sea level rise) are synthesized for flooding water level simulation, daily conditions and extreme conditions are simulated at the same time, and over-high water level estimation is avoided.
Owner:OCEAN UNIV OF CHINA

Method for detecting glacial ablation based on tracer technique

The invention discloses a method for detecting glacial ablation based on the tracer technique, and the method comprises the following steps: 1, adding different tracer agents with the equal concentration to a plurality of parts of water, uniformly mixing the tracer agents and water, recording the size and weight of each glacier model at the same time, sequentially freezing the plurality of parts of water with the tracer agents from the inside to the outside in a layered manner, and building a plurality of glacier models; 2, adjusting the environment factors of the surroundings of the glacier models, collecting the thawed water samples of the glacier models under different environment factors, and measuring the concentrations of all tracer agents in the water samples; 3, obtaining the weight, thawing speed and thawing position of the water samples of the glacier models at different layers under different conditions according to the contents of the tracer agents, and deducing the physical process of actual glacial ablation according to the thawing speed, the thawing weight and the thawing position. According to the invention, the method achieves the purpose of simulating the glacial ablation process through the glacier models and further deducing the ablation speed of an actual glacier, so as to carry out the early warning and analysis of the sea level rise and glacier natural hazards.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

Storm surge extreme water level prediction method based on coupling of random statistical model and hydrodynamic model

PendingCN112085270ADisaster loss mitigationContribute to disaster prevention and mitigationForecastingDesign optimisation/simulationHydrometrySea level rise
The invention discloses a storm surge extreme water level prediction method based on coupling of a random statistical model and a hydrodynamic model, and belongs to the technical field of ocean science and ocean engineering. The method comprises the following steps: S1, collecting hydrotopographic data in a region, establishing a Delft3D hydrodynamic model, and verifying the Delft3D hydrodynamic model; S2, establishing a main historical typhoon database, and listing a storm surge driving element set; S3, recombining storm surge driving elements on the basis of Monte Carlo; S4, selecting an appropriate typhoon field model and verifying the typhoon field model; and S5, simulating and predicting the extremely high water level based on storm surge of typical historical typhoons. The inventioncomprehensively considers the influence of climate change and sea level rise on the extreme water level value, can be used for predicting the extreme water levels in different recurrence periods and forecasting the numerical value of storm surge, is beneficial to disaster prevention and reduction so as to reduce disaster loss in coastal fragile regions, and is beneficial to reasonable planning anddesign.
Owner:SOUTHEAST UNIV

Land use dynamic evolution simulation method and system for coping with sea-level rise

InactiveCN108090660AOptimize space resource allocationResourcesSea level riseSea level
The invention discloses a land use dynamic evolution simulation method and a land use dynamic evolution simulation system for coping with sea-level rise, which are used in the field of land use simulation and prediction in urban planning. The land use dynamic evolution simulation method comprises the steps of: constructing a comprehensive index of exposure degree, sensitivity and adaptability to identify vulnerability degrees of regions under the influence of sea-level rise; identifying land use suitability of the regions according to land use space physical attributes, space accessibility indexes, neighborhood attributes and socio-economic factors; and determining a future land use rule of each land use region according to the vulnerability degrees of regions and the land use suitabilityof the regions, wherein the future land use rule is described in that a target region of the optimal land use development space must satisfy the condition of having the highest land use suitability and the lowest vulnerability degree. The land use dynamic evolution simulation method and the land use dynamic evolution simulation system provide a direct scientific basis for the decision-making of coastal city space planning, enhance the rationality and scientificity of the planning scheme, and thus promotes the transformation of urban planning from traditional qualitative and empirical planningto quantitative and scientific planning.
Owner:HUAZHONG UNIV OF SCI & TECH

Breakwater with good adaptability and method

InactiveCN108824357AImprove securityMeet the requirements of blocking wind and wavesBreakwatersQuaysSea level riseEngineering
The invention discloses a breakwater with good adaptability and a method. The breakwater comprises a plurality of unit structures which are arranged in sequence along the coast. Each unit structure comprises a first coast protecting wall arranged on the coast, a second coast protecting wall arranged behind the first coast protecting wall, a water bag arranged in a groove on the coast ground, and acover plate arranged on the groove, wherein the cover plate can slide up and down along the inner wall of the groove, and the first coast protecting wall and the second coast protecting wall are connected with a guide structure arranged on the coast ground, the guide structure comprises two independent cavities with the upper end and the lower end being closed, a plurality of rows of wave dissipating piles are arranged in the lower front part of the first coast protecting wall, each row of wave dissipating piles comprises a plurality of wave dissipating piles arranged at intervals, and a plurality of staggered wave dissipating blocks are arranged on the guide structure. The breakwater can automatically raise the heights of the first coast protecting wall and the second coast protecting wall when the sea level rises, and can meet the wave-proof requirements of different wave heights.
Owner:杭州仙珑宇盈科技有限公司

Fast calculation method for engineering sea area sea-level rise

InactiveCN104794304AScientific and reasonable technical methodsSmall amount of calculationSpecial data processing applicationsSea level riseFuture sea level
The invention discloses a fast calculation method for engineering sea area sea-level rise. The method comprises the technical steps that multiple kinds of sea surface height data of an engineering sea area are disposed, and a sea-level change data sequence is established; smoothing processing is conducted on the sea-level change data sequence of the engineering sea area; the rise rate of the sea-level is piecewise calculated by using the smoothed data sequence; correlation analysis is conducted on an average sea-level rise rate data sequence and a corresponding temperature data sequence; a future sea-level rise rate calculation model is established by using a correlation analysis result; the future sea-level rise rate is calculated according to time demands for engineering sea area sea-level prediction; a quantity value of the sea-level rise range and an error range thereof are calculated. By means of the method, a predicted value of the seal-level rise range and a predicted error are calculated, the calculated amount is smaller, the sea-level rise trend and the uncertainty of climate prediction under the background of climate change in the future can be objectively reflected, and the requirement for accurately and fast predicting future seal-level rise can be met.
Owner:NAT MARINE DATA & INFORMATION SERVICE

Sandbeach-staying-waiting construction method of cutter suction dredger

The invention relates to a sandbeach-staying-waiting construction method of a cutter suction dredger. The sandbeach-staying-waiting construction method is characterized by including the steps that a dredger pit area without hard foreign matter is selected, and the cutter suction dredger is sailed to a soil taking area to excavate a dredger pit when the sea level meets the drafting condition; when the water depth can not meet the drafting condition, the cutter suction dredger stays on a sandbeach and is stranded to wait till the sea level rises again; after the water depth meets the requirement and the cutter suction dredger floats, excavation of the dredger pit is conducted again till the dredger pit with the depth and the area meeting requirements is excavated. Compared with the prior art, the sandbeach-staying-waiting construction method has the advantages that the time spent on entering and exiting of the dredger and pipe disassembling is saved, excavation of the dredger pit can be completed only through two days and four tides, construction efficiency is greatly improved compared with a conventional construction method, the structure of the dredger is not influenced by sandbeach staying waiting construction, and economic benefits are quite remarkable.
Owner:SDC WATERWAY CONSTR

Working method of submersible type aluminum-gallium alloy hydrogen manufacturing unit

The invention discloses a working method of a submersible type aluminum-gallium alloy hydrogen manufacturing unit, and belongs to the fields of new energy, greenhouse gas emission reduction and military. In order to reduce the use of fossil energy, slow down the melting speed of antarctic, arctic and global permanent ice covers, reduce the hazards of El Nino phenomenon on human, the new energy obtained through manufacturing hydrogen by the working method of the submersibletype aluminum-gallium alloy hydrogen manufacturing unit can be used for satisfying the dependence of all human beings on energy during the economic development process; in the military field, a hydrogen fuel power plant can be used for serving military equipment; greenhouse gas is not emitted during the hydrogen manufacturing and using process, so that the greenhouse gas emission is reduced, the melting speed of the antarctic, arctic and global permanent ice covers and the rising speed of sea level are slowed down; hydrogen is quite clean energy; a aluminum-gallium alloy hydrogen manufacturing technology is newly invited in America; the alloy with 80 percent of aluminum and 20 percent of gallium (high purity is not needed) is used, the aluminum can be chemically reacted with water extremely rapidly at a room temperature, so that a new path to manufacture hydrogen is developed.
Owner:杜善骥

Anti-reef electric light source device capable of being automatically triggered during sea level rising

The invention discloses an anti-reef electric light source device based on automatic triggering during sea level rising, which comprises a stud fixedly mounted on a reef in a threaded manner, the stud is fixedly provided with a sliding rod, and the sliding rod is fixedly provided with a mounting plate located above the water surface through a mounting assembly; and a floating seat floating on the water is mounted on the sliding rod in a sliding manner. The acousto-optic warning lamp has the advantages that through cooperative use of the mounting base, the toothed bar, the supporting rod, the rotating shaft and the scraping plate, the acousto-optic warning lamp can start to work quickly when the flood tide water surface reaches a certain height, and meanwhile the acousto-optic warning lamp is simple in structure and more time-saving and labor-saving to manufacture and mount; the second cover body improves a certain shielding and protecting effect on the part, located above the water body, of the second cover body, and meanwhile the second cover body can shake to a certain extent in the horizontal direction when flapped by sea waves or large sea wind due to the arrangement of the shaking structure, so that the impact force directly borne by the second cover body is reduced; and the cover body II can be better used.
Owner:郭超

The method of sitting on the beach and waiting for the construction of the cutter suction dredger

The invention relates to a sandbeach-staying-waiting construction method of a cutter suction dredger. The sandbeach-staying-waiting construction method is characterized by including the steps that a dredger pit area without hard foreign matter is selected, and the cutter suction dredger is sailed to a soil taking area to excavate a dredger pit when the sea level meets the drafting condition; when the water depth can not meet the drafting condition, the cutter suction dredger stays on a sandbeach and is stranded to wait till the sea level rises again; after the water depth meets the requirement and the cutter suction dredger floats, excavation of the dredger pit is conducted again till the dredger pit with the depth and the area meeting requirements is excavated. Compared with the prior art, the sandbeach-staying-waiting construction method has the advantages that the time spent on entering and exiting of the dredger and pipe disassembling is saved, excavation of the dredger pit can be completed only through two days and four tides, construction efficiency is greatly improved compared with a conventional construction method, the structure of the dredger is not influenced by sandbeach staying waiting construction, and economic benefits are quite remarkable.
Owner:SDC WATERWAY CONSTR

Height-adjustable breakwater and method

InactiveCN108999146AMeet the requirements of blocking wind and wavesMeet the use requirementsBreakwatersQuaysWave structureSea level rise
The invention discloses a height-adjustable breakwater and a method. The height-adjustable breakwater comprises an anti-wave structure arranged on a seaboard, a first anti-wave wall arranged behind the anti-wave structure, a second anti-wave wall arranged behind the first anti-wave wall, a water bag arranged in a groove formed in the ground of the seaboard, and a cover plate arranged on the groove. The cover plate can slide up and down along the inner wall of the groove. The first anti-wave wall and the second anti-wave wall are connected with a guide structure arranged on the ground of the seaboard. The guide structure comprises two independent cavities, and the upper ends and the lower ends of the two independent cavities are sealed. The lower end of the first anti-wave wall and the lower end of the second anti-wave wall stretch into the two independent cavities. Push plates are arranged at the lower end of the first anti-wave wall and the lower end of the second anti-wave wall. According to the height-adjustable breakwater and the method, the height of the first anti-wave wall and the height of the second anti-wave wall can be automatically increased when the sea level rises sothat the requirements for preventing waves with different heights can be met.
Owner:杭州仙珑宇盈科技有限公司

Seawater desalination device driven by temperature difference energy

The invention discloses a seawater desalination device driven by temperature difference energy. The seawater desalination device comprises a warm seawater pool, a solar heat collection plate, a heat preservation cold seawater pool, a drainage pool, a flash tank, a shell-and-tube condenser, a vacuum pump, a buffer tank, a warm seawater pump and a fresh water storage tank. Temperature difference energy between warm seawater and cold seawater is used as an energy source for driving the desalination system to circulate; the sea level rise and fall caused by the tidal effect and the height difference formed between the sea level rise and fall and the sea water desalting device are utilized, so that warm sea water and cold sea water automatically flow in under the driving of gravity, and residual sea water is naturally discharged. Gas-liquid separation in the flash tank adopts a gradient porous defoaming structure, and efficient gas-liquid separation is realized through a capillary suction effect; the heat preservation cold seawater pool comprises an inner pool and an outer pool, and the outer pool is used for refluxing the cold seawater in the condenser and plays a heat preservation role in the cold seawater stored in the inner pool. The seawater desalination device driven by temperature difference energy provided by the invention only needs to consume electric energy of the warm seawater pump and the vacuum pump, and is an energy-saving and low-carbon seawater desalination method.
Owner:SOUTHEAST UNIV

Reciprocating type tidal power generation device

The invention discloses a reciprocating type tidal power generation device. The device comprises a device body, an anchor rod, a driving structure, a floating ball, a pulling rope, meshing balls, a transmission wheel, a first rotating shaft, a second rotating shaft, a winding wheel, a rotating structure and an electric generator body. The device has the beneficial effects that when the sea level rises along with tides, the floating ball located at the top end of the pulling rope can play a pulling role on the pulling rope through buoyancy of seawater, the plurality of meshing balls sequentially arranged on the pulling rope at equal intervals can be meshed with the transmission wheel located in the device body, the transmission wheel is driven to rotate while the pulling rope is pulled by the floating ball, the transmission wheel is connected with the electric generator body through the first rotating shaft, and the power generation can be achieved through rotation of the transmission wheel; and the other end of the pulling rope is fixedly connected to the winding wheel, and along with retreating of the tides, in cooperation with the rotating structure connected with the other end of the second rotating shaft , the pulling rope is wound by utilizing energy of seawater flowing during ebb tide, and meanwhile, the electric energy conversion is carried out on energy of ocean currents during ebb tide.
Owner:浙江恒创达峰科技有限公司

A device and method for assessing sea level rise based on hydrodynamic forces

The invention belongs to the field of sea level evaluation and especially relates to a device and method for evaluating sea level rise based on hydrodynamic force. For the problem that an existing evaluation device for sea level rise based on hydrodynamic force has low practicability and the evaluation from different tide level, flow rate and flow direction conditions is difficult, the invention proposes a following scheme, the device of the invention comprises a plurality of monitoring floating boxes, moving plates are installed in the multiple monitoring floating boxes in a sliding mode, controllers are fixedly installed at the bottoms of the multiple moving plates and are connected through a network, fixed holes are formed in inner walls of tops of the monitoring floating boxes, movingcolumns are slidably installed in the fixed holes, top ends of the moving columns are fixedly installed on the surfaces of the moving plates, and rotating grooves are formed in the bottoms of the moving columns. The evaluation device of the invention has the advantages of reasonable structure, convenient operation and high practicability, the multiple monitoring floating boxes can collect data from different tide levels, flow rates and flow directions, and the evaluation result is accurate.
Owner:ZHEJIANG OCEAN UNIV
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