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41 results about "Water resource planning" patented technology
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Water Resources Planning supports the TWDB's mission by collecting, analyzing, and disseminating water-related data; and, by providing other services necessary to aid in planning and managing the state's water resources.
Water-resource information managing and planning system
InactiveCN1897023AReduce investmentImprove work efficiencyData processing applicationsSpecial data processing applicationsGraphicsWater resource planning
A managing and planning system of water resource information comprises GIS, CPU, I / O. storage and its water resource comprehensive management and plan device including unit for setting up lead in / storage / update, unit for generating basic data drawing, unit for generating special subject data drawing storage of water resource, analysis / calculation / evolution unit, image virtualized description unit and file management / query / call / output unit.
Owner:OCEAN UNIV OF CHINA
Quantitative calculation method for lake wetland ecological water requirement in arid region
The invention relates to a quantitative calculation method for lake wetland ecological water requirement in an arid region. The method includes determining indicator species, searching for key restraining factors, building a model and calculating the lake wetland ecological water requirement. Compared with a water quantity balancing method, a curve relevant method, a minimum water level method and the like in the prior art, the method achieves the effect that structure and stability of an ecological system in the arid region are comprehensively considered. Compared with a functional method, the method achieves the effect that hydrological condition required by the indicator species around the lake wetland for growth and propagation is considered and is suitable for the lake wetland in the arid region. The method can be directly used for determining an ecological restoring target of the lake wetland in the arid region, guiding the implementation of wetland ecological water supplementation measures and has an important theoretical and practical meaning for basin water resource planning and configuration.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Crop irrigation water requirement calculation method on future climatic conditions
The present invention discloses a crop irrigation water requirement calculation method on future climatic conditions. The method comprises the steps of collecting the future climatic mode data, and correcting the future climatic mode data based on the historical actually measured meteorological data to enable the future climatic mode data to be suitable for the climatic change influence evaluation of a region or station scale; according to the growth period data of a crop field test and an accumulated temperature formula, constructing a response model of the crop planting date and the crop growth period length to the temperature; utilizing a penman formula to combine a single crop coefficient method and a soil moisture stress coefficient to calculate the crop daily water requirement; based on a crop irrigation system and a water balance principle to calculate the crop daily irrigation water requirement. Aiming at the influence of the climatic change on the agricultural water resource security, the method of the present invention considers the change of the crop planting date and the growth period caused by the global warming, so that a water resource planning management department can forecast the regional future agricultural water resource utilization amount more accurately, and accordingly, a water resource planning scheme is proposed more reasonably.
Owner:HOHAI UNIV
Method for performing remote-sensing monitoring on soil moisture content
InactiveCN102252973AQuick and efficient estimationQuick and effective moisture/drought conditionsColor/spectral properties measurementsWater resource planningObservation data
Owner:王桥
Quantification analysis method of fish habitat space characteristic influenced by gate dam regulation and control
ActiveCN107563610AReflect habitat statusWater resource protectionPisciculture and aquariaWater resource planningEcological study
The invention discloses a quantification analysis method of fish habitat space characteristics influenced by gate dam regulation and control; the method comprises the following steps: investigating fish resource present situations in a research area, and screening a target fish; aiming at the screened target fish, and using indoor stress experiments and history data to build a quantification response relation curve of the target fish with respect to key habitat factors; gathering research area basic hydrology and landform data so as to build a water-power water environment model, and combiningthe quantification response relation curve of the target fish with respect to key habitat factor so as to build a habitat model facing fish habitats; introducing a landscape ecology theory and methodso as to evaluate the space characteristics of the habitat simulation result facing the fish habitat, and quantitatively analyzing the influences on the fish habitat space characteristics by the gatedam operations. The method can guide multi-gate dam river ecology restorations and protections, thus providing important theory and practice meanings for basin water resource planning and configurations.
Owner:NANJING HYDRAULIC RES INST
Novel distributed Hebei model construction method and application thereof
ActiveCN106202790AAchieve forecastFully consider the problem of uneven spatial distributionHuman health protectionForecastingWater resource planningWater circulation
The invention relates to a novel distributed Hebei model construction method and application thereof. The novel distributed Hebei model construction method comprises the following steps that firstly, drainage basin generalization is carried out; secondly, grids serve as study units, a Hebei model is used for establishing a grid runoff producing module; thirdly, a lag-and-route method and a Muskingum method are used for establishing grid-by-grid distributed confluence modules. The mature Hebei model is used for conducting grid runoff producing calculation, then, grid-by-grid confluence calculation is carried out, the situation that the space distribution of factors such as an underlying surface is uneven is fully considered in the model, the model can be coupled with an atmospheric mode, the forecast accuracy of storm flood is improved, the meeting period is prolonged, and the novel distributed Hebei model construction method has important significance for storm flood forecasting, a drainage basin water circulation mechanism, water resource planning, unified water resource management scheduling in the northern semiarid and semihumid regions in China.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Analysis method for uncertainty influence on drainage basin runoff by different change conditions
ActiveCN106294932ASpecial data processing applicationsCAD numerical modellingDeterministic methodDecision maker
The invention discloses an analysis method for an uncertainty influence on drainage basin runoff by different change conditions. The analysis method mainly comprises the following steps: utilizing a hydrological certainty method and a hydrological uncertainty method to compare and analyze the uncertainty influence of condition changes on the drainage basin runoff, the above two methods are mutually compared so as to give a runoff change uncertainty range from different angles, the reliability of a result is improved, and a reference is provided for a decision maker to carry out water resource planning and management.
Owner:TAIYUAN UNIV OF TECH
A long-sequence farmland irrigation quota measuring and calculating method
InactiveCN109829134AImprove accuracyOvercoming typical annual irrigation quotasData processing applicationsComplex mathematical operationsWater resource planningWater resource development
The invention relates to a long-sequence farmland irrigation quota measuring and calculating method which comprises the following steps: establishing a basic parameter database, and inputting farmlandbasic parameters into the database; Compiling a measuring and calculating program; Respectively calculating irrigation quotas of the dry crops and the rice; Further calculating a long-sequence comprehensive irrigation net quota according to the designed multiple cropping index on the basis of single crop irrigation quota calculation; And calculating the long-sequence farmland irrigation gross quota of each calculation partition according to the utilization coefficient of the irrigation water of each region. The long-sequence farmland irrigation quota measurement and calculation method can well overcome the problems of insufficient precision of irrigation quota and standard water quota in typical years, and can greatly improve the accuracy of agricultural water demand prediction results inwater resource planning, water resource development and utilization engineering scale demonstration, water resource demonstration report compilation and the like.
Owner:中水淮河规划设计研究有限公司
Drainage basin wetness-dryness prediction method and system based on climatic factors
ActiveCN108229735AHigh precisionReasonable and effective planning and utilizationForecastingWater resource planningEvaporation
The invention discloses a drainage basin wetness-dryness prediction method and system based on climatic factors. The method comprises the following steps that: establishing a teleconnection model of multiple pieces of climatic factor data of a drainage basin water-vapor flux and a drainage basin air temperature teleconnection model; establishing a related model of the drainage basin water-vapor flux, air temperature and drainage basin evaporation and precipitation; combining a drainage basin water-vapor flux teleconnection model with a drainage basin air temperature teleconnection model, and predicting to obtain the drainage basin water-vapor flux and the drainage basin air temperature; and according to the drainage basin water-vapor flux and the drainage basin air temperature, combining the drainage basin evaporation and precipitation related model, combining drainage basin landform with underlaying surface information to predict a drainage basin wetness-dryness situation according to drainage basin evaporation and precipitation. By use of the method, time prediction accuracy can be effectively improved, runoff volume prediction accuracy is effectively improved so as to improve the accuracy of a long-term wetness-dryness situation in the drainage basin, and reasonable and effective water resource planning and utilization can be realized.
Owner:STATE GRID QINGHAI ELECTRIC POWER +2
Multi-sluice-and-dam plain river winter ecological flow derivation method
ActiveCN107480884AReduce schedule pressureSmall valueWater resource protectionBarrages/weirsWater resource planningDistribution characteristic
The invention discloses a multi-sluice-and-dam plain river winter ecological flow derivation method. The method concretely comprises the following steps by aiming at the biological habitat characteristics of the multi-sluice-and-dam plain river based on the wintering habitat requirements of fish: firstly the fish resource state of the research area is surveyed, the alternative fish calculated by the ecological flow is determined and then the target fish is further selected in a screening way by using the analytic hierarchy process; as for the target fish selected through screening, the wintering quantitative response curve of the target fish for the water temperature is established through the indoor water temperature response experiment and historical data collection; and the ecological water level guaranteeing safe wintering of the target fish is determined according to the river temperature vertical distribution characteristics with combination of the wintering ground habitat requirement of the target species, and the flow required for maintaining the ecological water level is calculated by using the water quantity balance formula. The method can be used for guiding ecological restoration and protection of the multi-sluice-and-dam plain river so as to have important theoretical and practical meaning for basin water resource planning and allocation.
Owner:NANJING HYDRAULIC RES INST
Reservoir scheduling rule optimization method based on machine learning fused with multi-source remote sensing data
ActiveCN112700068ASolving the challenge of long-series runoff simulationsEasy to operateForecastingNeural architecturesHydrometryEngineering
The invention provides a reservoir scheduling rule optimization method based on machine learning fused with multi-source remote sensing data; the method comprises the steps: collecting short-series runoff observation data of a reservoir, and extracting a rainfall series, meteorological data and a land water reserve series of a drainage basin where the reservoir is located; according to the short-series runoff observation data and the meteorological data, establishing a hydrological model of a basin where the reservoir is located, and preliminarily simulating runoff; constructing a long-term and short-term memory neural network model and correcting the simulated runoff by adopting the long-term and short-term memory neural network model to obtain a corrected simulated runoff series; inputting the acquired long-series meteorological data into a hydrological model and the corrected simulated runoff system, and simulating a long-series reservoir inflow runoff process of the reservoir; and constructing a multi-objective optimization scheduling model according to the obtained reservoir long-series reservoir inflow runoff, and solving an optimized scheduling rule by adopting a genetic algorithm. According to the invention, multi-source remote sensing data is fused for simulating a long-series runoff process, and a reference basis is provided for reservoir scheduling and water resource planning.
Owner:WUHAN UNIV
Regional available water supply estimation method considering multi-water-source joint probability distribution
ActiveCN113033014ATaking uncertainty into accountImprove accuracyDesign optimisation/simulationResourcesHydrometryWater storage
Owner:BEIJING NORMAL UNIVERSITY
Water resource planning method based on simulation and considering climate change
ActiveCN112241607AOvercome limitationsForecastingDesign optimisation/simulationWater useEnvironmental resource management
The invention discloses a water resource planning method based on simulation and considering climate change used for supporting regional water resource management among different water departments under complex and uncertain conditions. According to the method, a plurality of prediction models is coupled to reasonably predict the surface water resource quantity in a research area and the water demand of each large water consumption department in the area, and compared with a single prediction model, the coupled prediction model can improve the prediction precision to a certain extent; and different climate change scenes are constructed to drive the coupling prediction model, so that the limitation of influence of future climate change on water resource allocation is effectively solved. Onthis basis, a double-layer multi-objective planning model considering multiple uncertainty is established, the constructed optimization model is effectively solved through a hybrid algorithm, and finally a reasonable water resource optimal configuration scheme for selection under consideration of climate change and scene analysis is obtained.
Owner:GUANGDONG UNIV OF TECH
Method for determining the agricultural drought-caused yield reduction rate under current defense conditions at different drought frequencies
ActiveCN113793228ASimple structureEasy to operateData processing applicationsWater supply and demandSoil science
The invention discloses a method for determining the agricultural drought-caused yield reduction rate under current defense conditions at different drought frequencies. A typical drought year is selected through water resource quantity frequency calculation by taking an agricultural drought reduction rate under current defense conditions as a research object, and the irrigation available water supply quantity of dominant crops is determined at different drought frequencies under the current defense conditions according to water supply and demand data of water resource planning or drought resistance planning; by calculating the effective rainfall in the growth period of typical annual crops, the available irrigation water supply amount is distributed to the irrigation water amount of each growth stage according to the water deficit proportion of each growth stage of the crops; a simplified Jensen model is adopted, the agricultural drought-caused yield reduction rate under the condition of different drought frequencies and historical typical years under the current situation defense conditions of a research area is simulated, calculated and researched, and a scientific basis and technical support are provided for drought-resistant water source engineering planning and drought-resistant actual scheduling.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
A Quantitative Analysis Method for the Effect of Gate and Dam Regulation on the Spatial Characteristics of Fish Habitat
ActiveCN107563610BReflect habitat statusWater resource protectionPisciculture and aquariaHydrometryWater resource planning
The invention discloses a quantification analysis method of fish habitat space characteristics influenced by gate dam regulation and control; the method comprises the following steps: investigating fish resource present situations in a research area, and screening a target fish; aiming at the screened target fish, and using indoor stress experiments and history data to build a quantification response relation curve of the target fish with respect to key habitat factors; gathering research area basic hydrology and landform data so as to build a water-power water environment model, and combiningthe quantification response relation curve of the target fish with respect to key habitat factor so as to build a habitat model facing fish habitats; introducing a landscape ecology theory and methodso as to evaluate the space characteristics of the habitat simulation result facing the fish habitat, and quantitatively analyzing the influences on the fish habitat space characteristics by the gatedam operations. The method can guide multi-gate dam river ecology restorations and protections, thus providing important theory and practice meanings for basin water resource planning and configurations.
Owner:NANJING HYDRAULIC RES INST
Urban multi-reservoir water resource allocation method based on comprehensive evaluation information
ActiveCN109377064AReduce the influence of human subjective factorsReduce the influence of subjective factorsGeneral water supply conservationResourcesWater resource planningPrincipal component analysis
The invention discloses an urban multi-reservoir water source water distribution method based on comprehensive evaluation information, which relates to the technical field of water resource planning and allocation. At first, a multi-reservoir water source comprehensive evaluation system is constructed, the evaluation factors of four evaluation subsystems are determined, and calculate the comprehensive water quality value of the water quality target subsystem. The comprehensive operation value of the operation subsystem and the comprehensive evaluation value of the multi-reservoir water supplysystem are used to determine the sequence of the multi-reservoir water supply and the actual water supply quantity. The principal component analysis method is used to objectively select the evaluationfactors that affect the water quality objectives when selecting the water quality evaluation factors. The comprehensive evaluation method and fuzzy evaluation method are used to calculate the comprehensive water quality value of the water quality objective subsystem and the comprehensive operation value of the operation subsystem respectively. The method of multi-reservoir water supply allocationbased on comprehensive evaluation value can reduce the influence of human subjective factors and provide scientific basis for the sequence of multi-reservoir water supply and actual water supply.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Per-capita water resource planning control method for urban and rural ecological planning
InactiveCN102682365AReasonably optimize the configurationResourcesEcological planningWater resource planning
The invention discloses a method for performing quantitative partition by utilizing per-capita water resource index number. The method comprises the following steps: conducting investigation and reconnaissance to water resource information in a target region, analyzing water resource current situation of the target region, obtaining the per-capita water resource index number according to the population carrying and the water resource current situation of the target region and accordingly finishing the quantitative partition of the target region. By means of the method for performing the quantitative partition by utilizing the per-capita water resource index number, water resource bearing is converted into the per-capita water resource index number, the urban and rural ecological planning is directly related with the per-capita water resource index number to provide theoretical guidance for urban and rural planning. Regional water resources are reasonably optimized and configured, and the orientation is provided for urban and rural development scale and development direction.
Owner:TSINGHUA UNIV
Multi-dimensional dynamic collaborative safety degree evaluation method for regional water and soil resource coupling system
PendingCN112785189AImprove utilization efficiencyCollaborative securityGeneral water supply conservationForecastingSoil scienceWater resource planning
The invention discloses a multi-dimensional dynamic collaborative safety degree evaluation method for a regional water and soil resource coupling system, and aims to evaluate the safety degree of regional water and soil resources. According to the method, the quantity and quality of regional water and soil resources are considered at the same time, the water and soil resource coupling system can be evaluated from four dimensions of agriculture, industry, life and ecology. According to an interaction relationship between the water and soil resource coupling system and regional economic and social development, a system safety degree evaluation result of the water and soil resource coupling system can be obtained according to local conditions. The method not only can be used for evaluating the historical evolution process of the water and soil resource coupling system, but also can be used for predicting the collaborative safety degree of the future water and soil resource system in combination with water resource planning and land resource planning, so that multi-dimensional dynamic evaluation of the water and soil resource coupling system is realized, and guarantee is provided for collaborative safety of the regional water and soil resource coupling system.
Owner:ZHEJIANG UNIV
Calculation method of ecological flow process of plain rivers with multiple gates and dams based on fish habitat requirements
The invention discloses a fish habitat demand-based multi-gate dam plain river ecological flow process calculation method. The method comprises the steps of (1) screening out target fishes in a research region by adopting an analytical hierarchy process; (2) for the target fishes obtained by screening, establishing a quantitative response relationship curve of a spawning period, a predation period and an overwintering period of the fishes to key habitat factors; (3) building a water power water environment model, building a habitat model in combination with the quantitative response relationship curve, and evaluating spatial characteristics of a habitat; and (4) for the spawning period, calculating ecological flow of corresponding months by adopting a habitat method according to a non linear response relationship, and for the predation period and the overwintering period, performing calculation by adopting a water budget method, thereby obtaining a complete hydrologic year ecological flow process finally. The method can guide multi-gate dam plain river ecological remediation and protection, and is of important theoretical and practical significance for basin water resource planning and configuration.
Owner:NANJING HYDRAULIC RES INST
Public participative water saving method
InactiveCN106960365ASolve the problem of no water availableSolve problems that are difficult to trade directlyGeneral water supply conservationForecastingWater companyEconomic shortage
The invention provides a public participative water saving method under the background of city water resource shortage and ladder-like water price enforcement; the method comprises the following steps: 1, collecting and parsing data; 2, using the ladder-like water price as background, and building a resident tradable water volume measuring and calculating method based on the elasticity price theory; 3, building a resident-newly built industrial water transaction mode using a water supply company as a trading agent; 4, determining the trading price under the resident-newly built industrial water transaction mode; 5, making a ladder-like gain distribution mode under the resident-newly built industrial water transaction mode, and computing water saving gains. The water saving method can effectively utilize unused domestic water configuration water volume in water resource programs, can motivate residents to save water through water saving gains, and can use the resident tradable water volume to develop new industries, thus providing the ant colony effect of the resident water consumption body in city water saving program, solving the problems that a new industry has no water to use, and improving the whole water saving level of water resource shortage cities.
Owner:DALIAN UNIV OF TECH
Regional water resource supply and demand situation prediction and dynamic regulation and control method
InactiveCN113902189AGuaranteed conversion comparisonImprove accuracyForecastingResourcesCollection analysisWater resource planning
The invention discloses a regional water resource supply and demand situation prediction and dynamic regulation and control method, and relates to the technical field of water resource planning and management. The method comprises the steps of: S1, carrying out unified collection of water resource environment information outside a region, analyzing the economic development, population growth and environment change trends in the internal and external environments of the region, and acquiring analysis information data; S2, fully considering the information acquisition data and computer room software and hardware facilities existing in S1, and performing construction and application according to a resource sharing principle. The method has the beneficial effects that a database center is arranged, so that subsequent normal information conversion and comparison are ensured, the accuracy of a worker during prediction is improved, and normal dynamic regulation and control are ensured; and the whole process of information unified collection, comprehensive information integration, data integration and transmission, database center construction, numerical analysis and comparison for predictive regulation and deployment is set, and the requirements of people for normal life are met, so that water resources are reasonably utilized, and sustainable development of regional economy and society is guaranteed.
Owner:HOHAI UNIV
A method for predict water demand of small sample
InactiveCN109242182AAdaptableImprove forecast accuracyGeneral water supply conservationForecastingWater resource planningSmall sample
The invention discloses a small sample water demand prediction method, which comprises the following steps: evaluating historical data; performing adaptive grey modeling of the evaluated data; forecasting future water demand by adaptive grey model; outputting prediction results. The invention provides an effective way for the application of water resources management, large-scale water resources planning and the like in areas with low information management level by modeling and forecasting the water demand under the condition of small samples.
Owner:CHONGQING TECH & BUSINESS UNIV
Technology optimization method for comprehensive watershed management based on control unit and oriented to the whole process
ActiveCN111460688BEasy to operateImprove system performanceDesign optimisation/simulationWater resource planningControl cell
The invention discloses a whole-process-oriented drainage basin comprehensive treatment technology optimization method based on a control unit. The method starts from the drainage basin comprehensivetreatment control unit, is carried out in five steps, and specifically comprises the following steps: 1, reasonably dividing the drainage basin comprehensive treatment control unit; 2, carrying out quantitative calculation on drainage basin pollutant and water quality response; 3, establishing an applicable technical list of the whole drainage basin comprehensive treatment process; 4, defining anefficiency parameter and a cost function of a drainage basin comprehensive treatment technology; and 5, optimizing the drainage basin comprehensive treatment measures for the target. Technical supportcan be provided for project suggestions, planning, scientific research, design and management decisions of basin comprehensive treatment, and scientific guidance can also be provided for making of drainage basin water resource planning, drainage basin water resource protection planning, drainage basin water safety guarantee schemes, drainage basin water ecological restoration and protection and other plans and schemes.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Fusion Method of Multi-source Precipitation Products Based on Dynamic Heuristic Algorithm
ActiveCN112766580BConducive to operation schedulingEasy to operateMathematical modelsForecastingHydrometryData set
The present invention provides a multi-source precipitation product fusion method based on a dynamic heuristic algorithm, including: collecting limited station observation data in areas with scarce data, satellite inversion and reanalysis of precipitation data sets; using local magnitude scaling methods and equal rate The correction method corrects each data set and obtains the correction coefficient of each station; describes the ability of each data source to capture precipitation events through the assignment function, and calculates the state weight with space-time dynamic attributes; considers the ability of each data source to simulate the precipitation level , calculate the dynamic magnitude weight based on the cuckoo algorithm; use the ordinary Kriging interpolation method to dynamically map the correction coefficients, state weights and magnitude weights of all stations to the same spatial resolution, and obtain a long series of The raster quantitative precipitation product. The invention effectively integrates the advantages of each precipitation data source, corrects the system deviation of each precipitation data source, and provides a reference basis for river basin hydrological simulation and water resource planning.
Owner:WUHAN UNIV
A Quantitative Calculation Method for Ecological Water Requirement of Lakes and Wetlands in Arid Areas
The invention relates to a quantitative calculation method for lake wetland ecological water requirement in an arid region. The method includes determining indicator species, searching for key restraining factors, building a model and calculating the lake wetland ecological water requirement. Compared with a water quantity balancing method, a curve relevant method, a minimum water level method and the like in the prior art, the method achieves the effect that structure and stability of an ecological system in the arid region are comprehensively considered. Compared with a functional method, the method achieves the effect that hydrological condition required by the indicator species around the lake wetland for growth and propagation is considered and is suitable for the lake wetland in the arid region. The method can be directly used for determining an ecological restoring target of the lake wetland in the arid region, guiding the implementation of wetland ecological water supplementation measures and has an important theoretical and practical meaning for basin water resource planning and configuration.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Comprehensive evaluation method for influence of climate change on river runoff
PendingCN112818607AMultiple attribution analysis is objective and accurateDesign optimisation/simulationSoil scienceWater resource planning
The invention discloses a method for comprehensively evaluating the influence of climate change on river runoff. The method comprises the following steps: acquiring climate parameters and spatial and temporal change characteristics of the river runoff; analyzing and inspecting the change trend of the climate parameters and the river runoff by adopting an MK trend inspection method based on improved over-whitening, and determining mutation points of the climate parameters and the river runoff; dividing a period before the mutation point into a natural period, and dividing a period after the mutation point into an influence period; based on an SWAT model and an elastic coefficient method, calculating annual average runoff variation caused by climate change in the influence period; and calculating the influence of the climate change on the runoff change according to the annual average runoff change quantity caused by the climate change. According to the method, the multivariate attribution analysis of the climate change on the river runoff change is more objective and accurate, and the method has important practical significance in the aspects of basin water resource evolution analysis and identification, water resource planning management, disaster prevention and reduction, water safety and the like in a changing environment.
Owner:CHANGCHUN INST OF TECH
A Calculation Method of Crop Irrigation Water Requirement under Future Climate Conditions
The present invention discloses a crop irrigation water requirement calculation method on future climatic conditions. The method comprises the steps of collecting the future climatic mode data, and correcting the future climatic mode data based on the historical actually measured meteorological data to enable the future climatic mode data to be suitable for the climatic change influence evaluation of a region or station scale; according to the growth period data of a crop field test and an accumulated temperature formula, constructing a response model of the crop planting date and the crop growth period length to the temperature; utilizing a penman formula to combine a single crop coefficient method and a soil moisture stress coefficient to calculate the crop daily water requirement; based on a crop irrigation system and a water balance principle to calculate the crop daily irrigation water requirement. Aiming at the influence of the climatic change on the agricultural water resource security, the method of the present invention considers the change of the crop planting date and the growth period caused by the global warming, so that a water resource planning management department can forecast the regional future agricultural water resource utilization amount more accurately, and accordingly, a water resource planning scheme is proposed more reasonably.
Owner:HOHAI UNIV
A Distributed Hebei Model Construction Method and Its Application
ActiveCN106202790BAchieve forecastFully consider the problem of uneven spatial distributionHuman health protectionForecastingWater resource planningWater circulation
The invention relates to a novel distributed Hebei model construction method and application thereof. The novel distributed Hebei model construction method comprises the following steps that firstly, drainage basin generalization is carried out; secondly, grids serve as study units, a Hebei model is used for establishing a grid runoff producing module; thirdly, a lag-and-route method and a Muskingum method are used for establishing grid-by-grid distributed confluence modules. The mature Hebei model is used for conducting grid runoff producing calculation, then, grid-by-grid confluence calculation is carried out, the situation that the space distribution of factors such as an underlying surface is uneven is fully considered in the model, the model can be coupled with an atmospheric mode, the forecast accuracy of storm flood is improved, the meeting period is prolonged, and the novel distributed Hebei model construction method has important significance for storm flood forecasting, a drainage basin water circulation mechanism, water resource planning, unified water resource management scheduling in the northern semiarid and semihumid regions in China.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Multi-source rainfall product fusion method based on dynamic heuristic algorithm
ActiveCN112766580AConducive to operation schedulingEasy to operateMathematical modelsForecastingHydrometryData set
The invention provides a multi-source rainfall product fusion method based on a dynamic heuristic algorithm. The method comprises the following steps: collecting limited site observation data of a scarce data region, and carrying out satellite inversion and reanalysis on a rainfall data set; correcting each data set by adopting a local magnitude scaling method and an equal-rate correction method, and obtaining a correction coefficient of each site; describing the capturing capability of each data source on the rainfall event through a division function, and deducing a state weight with a space-time dynamic attribute; considering the simulation capability of each data source on the rainfall level, and deducing a dynamic magnitude weight based on a cuckoo algorithm; and adopting a common Kriging interpolation method to dynamically map correction coefficients, state weights and magnitude weights of all stations to the same spatial resolution, and obtaining a long series of grid quantitative rainfall productsthrough correction and data fusion. According to the method, the advantages of the rainfall data sources are effectively fused, the system deviation of the rainfall data sources is corrected, and a reference basis is provided for basin hydrological simulation and water resource planning.
Owner:WUHAN UNIV
Optimization method of reservoir dispatching rules based on machine learning fusion of multi-source remote sensing data
ActiveCN112700068BSolving the challenge of long-series runoff simulationsEasy to operateForecastingResourcesHydrometryAlgorithm
The invention provides a reservoir dispatching rule optimization method based on machine learning fusion of multi-source remote sensing data, including: collecting short series of runoff observation data of the reservoir, and extracting precipitation series, meteorological data and land water storage series of the watershed where the reservoir is located; according to the short series A series of runoff observation data and meteorological data, establish a hydrological model of the watershed where the reservoir is located and initially simulate the runoff; build a long-term short-term memory neural network model and use it to correct the simulated runoff, and obtain the corrected simulated runoff series; the collected long-term meteorological The data is input into the hydrological model and the corrected simulated runoff system to simulate the long series of inflow runoff process of the reservoir; a multi-objective optimization dispatching model is constructed based on the obtained long series of inflow runoff of the reservoir, and the optimized dispatching rules are solved by genetic algorithm. The invention integrates multi-source remote sensing data for simulating long series of runoff processes, and provides a reference basis for reservoir scheduling and water resource planning.
Owner:WUHAN UNIV
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