77 results about "Atmospheric circulation" patented technology

The invention relates to a water circulation system and a method for breeding marine fishes inland, and mainly solves the technical problems of complex process, large investment, high operating cost, large limitation of breeding varieties, low survival rate, slow growth and the like in the process of breeding the marine fishes in fresh water or low salinity salt water at present. A technical scheme comprises the following steps of: a, establishing the water circulation system; b, performing domestication on juvenile fishes of the marine fishes in the low salinity salt water in a gradient mode, namely breeding the juvenile fishes which are bred in the seawater in the brackish water temporarily, formulating a domestication strategy of slowing salinity gradually, and performing domesticationon the juvenile fishes of the marine fishes through three gradients, namely the brackish water phase, the low salinity phase and the ultra-low salinity phase; c, adding a physiological salt preparation, namely adding metal ions which play a key role in osmoregulation into the water or a feed; and d, managing the breeding, namely providing a preference temperature, illumination intensity and a daily illumination period. The water circulation system and the method are mainly used for breeding the marine fishes inland.

The invention discloses an environmental satellite 1-based surface temperature single-window inversion method. The method comprises the following steps of: 1, acquiring remote sensing data of an environmental satellite 1B, namely an HJ-1B satellite, of the surface of a region to be tested, preprocessing the remote sensing data to acquire image data and converting a pixel brightness digital number (DN) value of the image data into radiance; 2, performing atmospheric correction on the image data by using an image-based continental offshore stratigraphic test (COST) atmospheric correction model; 3, estimating emissivity epsilon of the surface of the region to be tested by a normalized difference vegetation index (NDVI) threshold method; and 4, inverting the surface temperature by a single-window algorithm according to calculation results obtained in the steps 1 to 3. In the method, the image-based COST model atmospheric correction method and the surface temperature single-window algorithm with no need of an atmospheric water vapor content parameter are applied to the HJ-1B satellite remote sensing data, so that the inversion of the surface temperature is realized.

The invention discloses a pervious concrete and is characterized in that the pervious concrete is made by mixing cement, aggregate, water, water reducer agent and adhesive evenly; and the cement, the aggregate, the water, the water reducer agent and the adhesive are mixed in different weight proportions of 1-1.2 to 5.5-8.5 to 0.2-0.5 to 0.01-0.2 to 0.01-0.2. The invention can solve the natural ecology problems of hardened ground in cities, atmospheric circulation as well as soil and water moisture retention, thereby forming a high-quality natural ecology environment and maintaining urban ecological balance. The pervious concrete consists of two pervious surface courses and two macadam bases in different particles so as to provide a water storage structure which can store the water until the water penetrates into the soil; meanwhile, the invention can be made into building block, which can be provided with different decorative patterns and colors on the surface, and has the advantages of artistic quality, water permeability, good water retention, skid resistance, high strength, cold resistance and weather resistance, etc.

The invention discloses a method for forecasting and warning an accident consequence of a major hazard installation by combining with real-time meteorological information. The accident of the hazard installation is simulated by combining a high-spatial and temporal resolution atmospheric circulation numerical simulation and forecasting method with a gas dispersion simulation method, simultaneously adding an integrated forecasting method of a danger emission estimation method and a simulated data result post-processing method and combining with the real-time meteorological information and the real-time monitoring information of the hazard installation to obtain the quantitative three-dimensional spatial and temporal distribution result of hazardous gas after the accident occurs and the influence scope and the duration of the accident on an ambient environment; the hazard level and the like on a human body is analyzed and forecasted to obtain the three-dimensional spatial distribution condition of the poisonous and hazardous gas after the accident occurs and the quantitative pollutant concentration number of every target point. The invention provides a method which can be used for forecasting the accident consequence and an automatic evaluation method for hazard level of the accident. The method for forecasting and warning the accident consequence of the major hazard installation by combining with the real-time meteorological information has the characteristics that spatial and temporal spacing, such as the meteorological information, results and the like can be read in real time, the computing speed is high, the real-time performance is strong and the like.

The present invention discloses a regional meteorological drought level prediction method coupled with multi-source data. The method is characterized in that: by space downscaling of the remote sensing precipitation data of the gridded satellite, a high-resolution regional precipitation space database is constructed, the drought levels are divided by using a standardized drought index, and based on the non-stationary Markov chain model, a meteorological drought level prediction model with time-varying transition probability is constructed. According to the method disclosed by the present invention, multi-source remote sensing information and basic underlying surface features are used to capture the spatial variability of regional precipitation, the lack of precipitation observed in traditional sites is made up for, the external coercion and precursor signals of the evolution of drought and flood of large-scale meteorological factors that can reflect the characteristics of atmospheric circulation are made full use of, and the mechanism of formation and development of drought and flood is taken into account to a certain extent, so that the dynamic evolution characteristics of meteorological and hydrological systems are more in line with, highly scientific and practicability are ensured, and a foundation can be laid for the establishment of a drought and flood warning system.

The invention discloses a wind arrow field real-time measuring method based on satellite cloud pictures, and belongs to the field of image processing and sports estimation. The wind arrow field real-time measuring method based on the satellite cloud pictures solves the problem that a prior model is complex in calculation, not strong in real-time performance, and not high in algorithm searching efficiency. Earth temperature data which are detected are converted to gray scale data, the gray scale data are converted to longitude-latitude data, and then the longitude-latitude data are converted to image coordinates, and satellite cloud picture data are displayed in an image form. Satellite cloud pictures of three continuous times are compared, block matching is conducted on the satellite cloud pictures, and then different searching methods are selected according to real-time performance requirements, and longitude of a wind arrow field, latitude of the wind arrow field, and the direction of the wind arrow field are confirmed. Data preprocessing and a searching result are synthesized so as to further acquire a gray scale of each wind arrow, the temperature of the each wind arrow, and a barometric surface where the each wind arrow is located. Finally, general circulation of atmosphere and medium-and-long-term weather forecasts can be observed according to positions of the wind arrow field on the satellite cloud pictures, the size of the wind arrow field, the direction of the wind arrow field, and the barometric surface where the each wind arrow is located. The wind arrow field real-time measuring method based on the satellite cloud pictures avoids complex calculation when large-data-volume image processing of the satellite cloud pictures is conducted, is high in practicality, and improves system execution efficiency of a system.

The invention relates to a vertical clearance type fish passing effect experimental system which comprises a water inlet system connected with a water circulation system, a water blocking system connected with the water inlet system and a water outlet system connected with the water blocking system. The water circulation system comprises a water suction pump, an overground water pool, an underground water pool, an upstream control valve and a downstream control valve. The water inlet system comprises an upstream flashboard and an upstream fish resting pool. The water blocking system is composed of a plurality of stages of fishponds. The water outlet system is composed of a downstream fish resting pool, a downstream water flow buffering box and an underground water pool. The vertical clearance type fish passing effect experimental system can be used for studying and analyzing hydraulics turbulent energy dissipation problem, a fish migration problem and hydraulics experimental model demonstration, due to the fact that the experimental system and an actual fishway partial project are built with a proportion of 1:1, the flow regime of the water flow in a fish passing facility is truly reflected, and the reliability and the accuracy of a water flow field in a fishway and the analysis of the fish passing effect are further guaranteed.

The invention discloses pervious concrete and a preparation method thereof. The pervious concrete is prepared from the following raw materials in parts by weight: 6-15 parts of cement, 30-45 parts ofaggregate, 0.8-1.5 parts of biomass charcoal, 0.8-1.5 parts of colorant, 0.1-0.5 part of water reducer and 2-4 parts of water. According to the pervious concrete, a proper quantity of biomass charcoalis added, a cellular structure of which the holes are evenly distributed is formed in the concrete, the air permeability and the water permeability of the pervious concrete are enhanced, harmful substances in runoff water can be filtered and adsorbed while water adsorption, water storage and water seepage are carried out in a rainy day, so that a purpose of purifying the ecological environment isachieved, in addition, noise in the environment can be adsorbed, and the ecological problems of city earth surface hardening, ecological side slope damage, unsmooth atmospheric circulation, noise pollution, water and soil loss and the like are solved. In addition, the pervious concrete has rich colors, can adapt to various environments, including municipal engineering, landscape architecture, ecological roads and the like, and lays a foundation for the development of the multifunctional pervious concrete.

The invention discloses a climate prediction system, which is characterized by comprising the observation data; a data assimilation system; a climate model operation subsystem; a prediction subsystem;a product subsystem; and a high-performance computer. The data assimilation system comprises a data assimilation and support subsystem; the climate model operation subsystem comprises a global general circulation model, a global ocean circulation model, a high-resolution East Asian regional climate model and a simplified ENSO prediction model. The prediction subsystem comprises a prediction correction and detection subsystem; the product subsystem comprises a product generation and distribution subsystem, wherein the coupling of the global atmospheric circulation model and the global ocean circulation model constitutes an air-sea coupled model. By combining the statistical method with the dynamic method, and combining the multiple initial values with the multiple models, the climate prediction system has the advantages of long prediction time, high accuracy, fast computation speed and strong regional pertinence.

The invention relates to a statistical downscaling model forecasting factor screening method. The method comprises the steps that 1 a positional relationship graph between a weather station and a gridin a river basin is established; 2 the correlation among measured rainfall of each station, temperature and other predictand and a reanalysis data atmospheric circulation factor is deduced, includingthe correlation with the grid of the weather station and the correlation with surrounding grids, and appropriate factors are selected according to a set correlation coefficient threshold; 3 the change of a criterion certainty coefficient in a calibration period on monthly, seasonal and annual scales is analyzed; and 4 according to different scales and different factor selection methods in the step 3, a model is analyzed and tested.

The invention discloses a double-effect heat supply device of a low-temperature superconducting source heat pump. The device comprises an electrostatic low-temperature superconducting heat source tower, a low-temperature potential energy superconducting liquid transfer, an automatic single/double-effect heat pump set, a single-effect slight-cold-grade heat supply circulation, a double-effect great-cold-grade heat supply circulation and a negative-temperature high-humidity heat energy accumulation haze remover, wherein low-temperature nanometer superconducting liquid is filled in the superconducting heat source tower to absorb a haze wet cold heat source in the haze period in winter to realize automatic selection of economical heat supply operation of a single-effect heat pump system in the climate period above -10 DEG C; the heat supply temperature of hot water of 65 DEG C of a coal-fired boiler is reached; and meanwhile, a lot of manual cold sources disturb the atmospheric circulation to lead air to dispel the maze. Ultralow-temperature nanometer superconducting liquid is filled in the superconducting heat source tower to absorb the heat energy of ultralow-temperature air in the ultralow-temperature climate period above -18 DEG C to realize automatic selection of economical heat supply operation of a double-effect heat pump system; the heat supply temperature of the hot water of 65 DEG C of the coal-fired boiler is reached; and the environmental pollution caused by the heat supply of the coal-fired boiler can be reduced.

The invention discloses a multifunctional climate data model and an application thereof. The multifunctional climate data model takes methods, such as an air temperature elevation regulation equation, a bilinear distance weighting interpolation, harmonic fitting and the like, as a basis to realize the generation of climate variables at any scale. According to data, by combining a species distribution model, tree species suitability distribution under a future climate condition can be predicted, and the basis is provided for tree species selection during the afforestation or reafforestation of a forestry department so as to improve forestry productivity. The climate data generated by the multifunctional climate data model also can provide long-term climate data support for a forest ecosystem growth model so as to improve the prediction precision of the growth model. According to a downscaling method provided by the invention, a plurality of atmospheric general circulation model prediction results of the Intergovernmental Panel on Climate Change can be converted at any scale so as to provide the data support for relevant researches under multiple models and multiple scenes.

The invention discloses a power transmission line icing occurrence probability prediction method, which comprises the steps of obtaining atmospheric space three-dimensional multivariable and time continuous grid point data, performing analysis by adopting a T-mode principal component analysis method, and performing weather classification according to circulation fields of the middle and lower layers of a troposphere of regional grid point data; and performing synthetic analysis by combining different types of atmospheric circulation of each day in a region needing to be forecasted in winter ina certain period of time to obtain a conceptual model of weather circulation situation typing. The method can objectively predict the icing probability, does not depend on the subjective consciousness of business personnel, improves the prediction accuracy of icing, facilitates the understanding of the weather characteristics of icing in scientific research and business application, and providesa scientific and technological support for the prediction of icing of a power transmission line.

The invention discloses a fry screening equipment, and belongs to the technical field of fry screening. The equipment includes an aquaculture pool, a grid unit and a fishing net; the grid unit is arranged in the aquaculture pool, the front end and rear end of the outer side of the aquaculture pool are provided with water outlet pipes, the water outlet ends of the water outlet pipes are connected with small aquaculture boxes, and the small aquaculture boxes are connected with the bottoms of the aquaculture boxes through water pipes. The fry screened out in the screening process swim into the small aquaculture boxes through the water outlet pipes, artificial fishing is not required, time and labor are saved, the small aquaculture boxes are connected with the aquaculture pool through the water pipes and play a role in water circulation, and the situation that water is always stored in the aquaculture pool and bacteria are thus generated and affect the health of the fry is avoided.

An artificially created atmospheric circulation system comprising a plurality of vortex generating units (10), wherein each vortex generating unit (10) is configured to generate an upwardly directed vortex 15 within the atmosphere and wherein the plurality of vortex generating units are configured and associated so that all of the vortices 15 produced combine to provide a single atmospheric vortex (17).

The invention discloses a double-channel cold and heat source haze purifying and heating tower. The double-channel cold and heat source haze purifying and heating tower is composed of a bottom air inlet liquid film evaporation and cold purification system, an upper air inlet finned tube haze absorption heating system and a minus-temperature heat storage finned tube frost and haze removing system. The double-channel cold and heat source haze purifying and heating tower is characterized in that an openable air port of a low heat source is closed in summer, dry hot circulating air enters the surface of a water-cooling liquid film heat exchange layer through a lower air inlet grid, so that a liquid film is formed and evaporated, the outlet water temperature is low, and the cooling efficiency of a refrigerator is improved; drifting moisture is removed through a low heat source fin type heat exchanger, and loading and atmospheric circulation are achieved through driving of a draught fan; in winter, the openable air port of the low heat source is opened, a haze wet cold heat source directly releases low-temperature heat energy through freezing of the low heat source fin type exchanger, so that frost and haze removal can be conducted twice in a day cycle under the minus-temperature climate condition by means of 2% of stored heat energy of the heat source, and the low-temperature heat source having the atmospheric environment purification function is obtained to serve as a heat source of a heat pump.

The present invention discloses a terrain gravity wave lift force parameterization method. The method comprises the following steps: calculating a blocking height of the pattern airflow passing the terrain; calculating spectral distribution of the terrain above the blocking height; calculating a perturbation speed corresponding to each component of the terrain gravity wave; and beginning with thefirst pattern layer above the blocking height, carrying out the following steps: calculating the changes in the horizontal wind direction of the pattern, calculating the momentum flux of the fluctuating component perpendicular to the horizontal wind field, and calculating the terrain gravity wave lift force. According to the method disclosed by the present invention, the directional vertical shearof the environmental wind field is processed, the influence of the terrain gravity wave transmission on the atmospheric circulation can better characterized, and the simulation ability and the prediction level of the pattern can be improved.

The invention provides a multi-scale numerical weather forecasting mode fused weather forecasting method and device, and the method comprises the steps: obtaining a multi-scale numerical weather forecasting mode fused target forecasting factor according to atmospheric circulation forecasting data and convective weather forecasting data; and inputting the target forecasting factor into a pre-trained deep learning forecasting model to obtain a weather forecasting result. According to the invention, the forecasting factors of the numerical weather forecasting modes with different scales are fused and input into the pre-trained deep learning forecasting model to obtain the predicted weather forecast, so that the defect that the forecasting effects of weather systems with different scales cannot be considered at the same time in the prior art is overcome; according to the invention, fusion of numerical weather forecasting modes of multiple scales is realized, and the forecasting effect of weather systems of different scales is effectively improved.

The invention relates to a method for realizing atmospheric correction of an MODIS (moderate-resolution imaging spectroradiometer) image in a turbid water body area. The method comprises the following steps of: (1) reading an empirical relationship of actually measured standard water-leaving reflectivity of wave bands of 531, 551, 667 and 978 nm, a Rayleigh scattering look-up table, an MODIS image of the wave bands related by the model, synchronous atmospheric pressure, wind speed and ozone thickness data; (2) calculating the reflectivity contributed by each wave band Rayleigh scattering of the MODIS by using a Rayleigh scattering look-up table algorithm on the basis of meteorological data related in the step (1) and correcting the reflectivity; (3) building empirical relationships of thereflectivity of the wave bands of 531, 551, 667 and 978 nm by using the MODIS image data corrected by the Rayleigh scattering, (4) calculating the reflectivity contributed by aerosol scattering of each wave band of the MODIS by using an Angstrom aerosol exponential model on the basis of the step (4), and (5) calculating the reflectivity contributed by path radiance of the atmosphere based on the steps (2) and (4) and carrying out atmospheric correction on the MODIS image.

The invention provides a power grid icing prediction method and device. The method comprises steps that historical wire icing day number data is acquired, and icing degree data is acquired through calculation according to the wire icing day number data; atmospheric circulation index data is acquired, and characteristic factors are acquired according to relationships between the atmospheric circulation index data and the historical wire icing day number data; the icing degree data and the characteristic factors are inputted to a SVM machine learning model for fitting, and a fitting function model is acquired; atmospheric circulation index data corresponding to to-be-detected data is inputted to the fitting function model, and the power grid icing prediction information is acquired. The method is advantaged in that through integrating the atmospheric circulation index and machine learning methods, a problem that only a few of basic meteorological factors participate into prediction is solved, and effective support is provided for middle-term and long-term icing prediction.

The invention discloses a fine wind field simulation method based on spatial correlation and monitoring data. The method comprises the following steps: step 1, obtaining a spatial correlation coefficient field which is obtained through WRF simulation without combining observation data; step 2, obtaining observation data obtained by traditional observation and non-traditional observation; and step 3, considering a fluid mechanics control equation and a multi-physical process by combining a numerical simulation module of the observation data in the step 2, and obtaining accurate space field data by running the WRF core module ARW in the step 1. The method solves the problem that in an existing method, expression of influences of factors such as terrain, wind direction and atmospheric circulation is neglected, and the precision is not accurate.

The invention relates to a method for determining a strong wind generating mechanism in a complicated terrain area. The method for determining the strong wind generating mechanism in the complicated terrain area synthesizes the dynamic and thermal processes on the surface of a complicated underlying surface, analyzes the causes of strong winds in the complicated terrain and the changes in different seasons, and uses a mesoscale weather forecast mode WRF to quantitatively determine the background process of large-scale atmospheric circulation, so as to obtain the formation and evolution mechanisms of near-surface winds through comparative analysis. The method for determining the strong wind generating mechanism in the complicated terrain area designed a series of sensitivity tests for complicated underlying surface terrain, vegetation, soil moisture and other parameters to quantitatively obtain the influence of different factors on the wind generating process under different underlyingsurface conditions and the stress effect subjected to the large-scale circulation, so as to obtain the formation mechanism of the strong wind in the complicated terrain area and the causes and influence factors of wind disasters in power grids. The method for determining the strong wind generating mechanism in the complicated terrain area can provide reference data for power grid deployment, windenergy resource utilization, wind disaster prediction and assessment and the like in the complicated terrain area. The method for determining the strong wind generating mechanism in the complicated terrain area can improve the disaster prevention and mitigation of wind power system and the utilization of wind energy resources, and can make breakthroughs in the disaster generation mechanism and disaster warning of transmission line wind disasters.

The invention provides meteorological climate regionalization arguments and causes by using the historical data of meteorological observation sites of the regionalization since building, comparing and analyzing and researching the temperature, precipitation, wind, sand and sunlight and other meteorological elements while combining with the annual, seasonal and monthly and other characteristics according to the anomalism of the climate, and researching the generation and distribution rules of meteorological climate regionalization from the time and space, wherein the generation and distribution rules comprise interannual change, annual change, seasonal change and abnormal change. The relation of the meteorological climate regionalization and EL-Nino events, NAO (North Atlantic Oscillation), PDO (Pacific Decadal Oscillation), SOI (Southern Oscillation Index), AO (Angola) and other factors by means of teleconnection analysis is indicated, and the characteristics of atmospheric circulation anomalies which cause the climate regionalization anomalies are indicated.

The invention relates to the technical field of power generation, in particular to a device and a method for generating power by using water circulation. A plurality of circular grooves and internal and external annular pressure reduction walls are arranged at the bottom of a circular pool, a concrete platform is arranged in the pool, a vertical water pump is arranged on the platform, the vertical water pump is connected with a water inlet pipe and a water outlet pipe, a generator is arranged at the upper part of the upper platform, and a water turbine is arranged at the bottom of the generator. The device and the method have the advantages that: according to physical analysis of fluid mechanics, vacuum science, atmospheric pressure science, reasonable energy science, inertia science, trigonometric function science, gravity acceleration science and the like, the flow velocity of the water outlet can be fastest, the generated energy efficiency is highest, nuclear power and coal power with huge risk to the human beings are thoroughly replaced, meanwhile, a decisive advantage is created for solving all negative problems of the whole human beings such as atmospheric pollution, environmental pollution, energy shortage and the like, and all good new atmospheres start.

The invention relates to global warming control by reducing heat input into a polar region. The flow rate of ocean current and atmospheric circulation for heat exchange between a low-latitude region and the polar region is appropriately controlled, such as arrangement of an ocean current turbine generating unit, stone wall accumulation at the bottom of the sea, dam building and gate setting, stretching and drawing of sails for blocking the ocean current, and arrangement of a large number of wind generating sets on the land, shallow sea or ice surface in the polar region; and the stone wall accumulation and dam building and gate setting scheme has smallest investment and fastest results once for all. The schemes can reduce the heat input of the two poles of the earth so as to prevent polar ice from melting and reduce global average temperature. The invention has the advantages of low manufacturing cost and easy climatic regulation.