37 results about "Weather satellite" patented technology

A method and apparatus for inhibiting or weakening the development of tropical cyclones by detecting the onset of tropical cyclonic activity using at least one storm tracking weather satellite and using at least one submerged modified nuclear powered submarine to pump cool subsurface water to cool the surface water in the area of such activity. The method and apparatus contemplate moving the submarine with the movement of the tropical cyclone as tracked by satellite with the objective that cooling activity is optimally positioned and unrelenting.

The invention discloses a sea fog all-time all-weather inversion method based on multispectral weather satellite information. According to the method, the influence of the diurnal change of sea surface temperature on the fog region identification is considered, a sea surface brightness temperature ambient field (clear sky composite map) (CSCM) is established aiming at the daytime and night respectively and independently according to the diurnal variation characteristic of the sea surface temperature, and a foundation is laid for accurate inversion of dissipation and concentration change in a satellite monitoring sea surface fog region; furthermore, the method aims at typical spectral characteristics of sea fog satellite monitoring at three different time intervals of daytime, night and morning and night, the optimized spectral combination and corresponding algorithm flow are respectively selected, and the all-time accurate identification of a sea surface fog region, a clear sky region and a cloud region is reliably realized.

The invention discloses a cloud computing and data virtualization-based weather satellite data processing system. A proposed data resource pool solves the problems of massive satellite data storage and computation, and solves the problems of massive satellite data storage and time-space coherence of satellite data storage; a time-space attribute is a most basic attribute of weather satellite dataand also a most complex attribute of the weather satellite data, and is a difficult point of a storage scheme; in storage system and scheme design, the time-space attribute of a satellite can be constructed and identified through a file name, a key, a file directory, an URI and the like in a unified environment; the satellite data can be subjected to virtualization operations of extraction, reconstruction, mapping and the like according to a time-space scale of storage and application; rich data views are provided; and based on the data views, the system can finish complex weather satellite data computing and processing. Therefore, the great convenience is brought for application of the weather satellite data.

The invention discloses a method for achieving all-weather communication by means of two inclined geosynchronous satellite orbit (IGSO) communication satellites. The method for achieving all-weather communication by means of the two IGSO communication satellites comprises the steps that the two IGSO communication satellites are placed at co-location positions of one or two geostationary earth orbit (GEO) communication satellites, and the ascensional difference of an ascending node between the two IGSO communication satellites meets the requirement that the two IGSO communications satellite can not be located within the range three degrees above or below the equatorial plane at the same time; when the IGSO communication satellites are located beyond the range three degrees above or below the equatorial plane, a satellite communication ground station conducts the communication application through transparent repeaters or processing repeaters on the IGSO communication satellites; when one IGSO communication satellite is located within the range three degrees above or below the equatorial plane, the satellite communication ground station switches the communication service from the IGSO communication satellite located within the range three degrees above or below the equatorial plane to the other IGSO communication satellite, the communication application is conducted through the transparent repeater or processing repeater on the other IGSO communication satellite, and thus all-weather satellite communication is achieved by the satellite communication ground station through the two IGSO communication satellites.

The invention discloses an atmospheric temperature and humidity profile inversion method for a high-latitude complex underlying surface, and the method is characterized in that the method comprises the following steps: S1, channel selection; S2, selecting clear sky pixels; S3, constructing a neural network model; and S4, carrying out atmosphere temperature and humidity profile inversion. According to the method, the problem of high-precision inversion of the atmosphere temperature and humidity profile in the high-latitude region is solved, an atmosphere temperature and humidity profile inversion system based on infrared hyperspectral data carried on the Chinese meteorological satellite FY-3D is successfully constructed, and an inversion test shows that the method achieves ideal precision in atmosphere temperature and humidity inversion in the high-latitude region.

A weather satellite information processing algorithm simulation system and method are provided. The weather satellite information processing algorithm simulation system may include a data supplying unit to supply input data that is required to operate a weather satellite information processing algorithm, an algorithm operator to operate the weather satellite information processing algorithm, using the supplied input data, and a result analyzer to analyze a result obtained by operating the weather satellite information processing algorithm, and to generate analysis result data. The weather satellite information processing to algorithm may extract a product from weather satellite information stored by a weather satellite earth station.

The present invention disclosed a height monitoring method based on the cloud bottom of Fengyun No. 4 and the foundation millimeter wave radar.This method is: the monitoring results of the base of the base millimeter wave radar divide the clouds into different types. Based on this, organize Fengyun No. 4 meteorological satellite remote sensing product and foundation millimeter wave radar data to form a historical database;The accumulated neural network analyzes historical data, and uses the monitoring results of the ground base millimeter wave radar to correct the monitoring results of Fengyun No. 4 meteorological satellite, and establish a highly -based cloud -based high -level monitoring model; use historical data to verify the monitoring model, determine the results according to the resultsWhether to adjust the model; use the real -time Fengyun 4 meteorological satellite remote sensing product and the final determined cloud underground monitoring model to monitor the height of the cloud underground.The invention has high accuracy, small errors, and wide monitoring scope of the height of the cloud underground, which can be used to develop height products of satellite cloud underground.

The invention provides a method for retrieving air temperature from thermal infrared remote sensing data of polar-orbiting meteorological satellites, comprising the following steps: Step 1: Obtaining polar-orbiting satellite observation data and matching to form a data set; Step 2, dividing the data set into cloudy data and clear sky data; Step 3: use stepwise linear regression method to carry out variable analysis on the variables in the cloudy data and clear sky data, so as to screen out the important variables that affect the temperature model construction as the input variables of the temperature inversion model ; Step 4: Using the extreme gradient boosting algorithm, use the selected cloudy data as the cloudy data set to build a cloudy sky inversion model; use the filtered clear sky data as a clear sky data set to build a clear sky inversion model. The model constructed by the invention can quickly estimate high-precision near-surface atmospheric temperature information under cloudy and clear sky conditions, and has high spatial resolution.

The invention relates to a lightening damage early-warning method and system for an electric transmission line. The method includes the following steps that first, weather, satellite, radar and lightening positioning system data are collected, and lightening early-warning parameters at some period in the future are obtained through a comprehensive lightening prediction algorithm; second, according to different lightening overvoltage formation mechanisms, shielding failure and back striking calculation models are selected respectively, calculation is performed through the lightening early-warning parameters and line characteristic parameters, and the lightening trip probability of the electric transmission line is predicted; third, the lightening trip probability of the line is evaluated, the lightening trip probability of each base electric transmission line pole tower is compared with a determined line trip risk early-warning threshold value, and different levels of early-warning signals are obtained. Through the lightening damage early-warning method and system for the electric transmission line, lightening damage to the electric transmission line can be early warned effectively and timely, and technological support is provided for lightening protection and disaster relief of the electric transmission line.

The invention discloses a Yolo-based meteorological satellite cloud image target detection method. Divide the multiple visible light cloud maps into: the first visible light cloud map, the second visible light cloud map and the third visible light cloud map; wherein, the proportion of invalid information in the first visible light cloud map is ψ 1 satisfy ψ 1 <ψ min ; The proportion of invalid information in the second visible light nephogram ψ 2 satisfy ψ min ≤ψ 2 ≤ψ max ; The proportion of invalid information in the third visible light nephogram ψ 3 satisfy ψ 3 >ψ max ;ψ min is the lower limit of the invalid information threshold, ψ max is the upper limit of the threshold value of invalid information; 3. fuse the first visible cloud image with its corresponding infrared cloud image to obtain a fusion cloud image; combine the infrared cloud image corresponding to the first visible cloud image, the fusion cloud image and the third visible cloud image to form a cloud atlas to be detected; 4. The Yolo algorithm is used to perform target detection on the cloud images in the detection cloud image set, and identify the typical weather phenomena in the cloud images.

The invention discloses a three-dimensional wind farm power generation system based on wind force monitoring, comprising: a vertical axis wind power generator electric energy converter I arranged on a support column I; The capture assembly and the second wind capture assembly, the first wind capture assembly or the second wind capture assembly include sleeves, three legs, three main blades, three arc-shaped slits, three arc-shaped slide rails; three rotating Outriggers; slider drive; three folding blades; multiple fan ribs; anemometer; local monitor; controller, which communicates with the slider drive, local monitor and weather satellite; Ⅰ is compared with the pre-acquired average wind speed value Ⅱ to adjust the positions of the three rotating legs. The three-dimensional wind farm power generation system based on wind force monitoring provided by the present invention can adjust the wind capture area according to the wind force, thereby effectively improving its self-starting capability at low wind speeds.

The invention relates to the field of meteorological analysis, discloses a daytime cloud phase inversion method based on a polar orbit meteorological satellite MERSI, and develops a daytime cloud phase identification product by utilizing radiation observation of a medium resolution spectral imager MERSI of a second generation polar orbit meteorological satellite FY-3D in China. Based on MERIS L1 data of radiometric calibration and geographic positioning and a cloud detection product, in combination with earth surface type data, by utilizing spectrum and texture characteristics of visible light, infrared and near-infrared channels and by utilizing different thermodynamic phase states of cloud top particles, cloud phase state identification is carried out on cloud pixels by adopting a threshold value method, and a cloud phase state product with the resolution of 1 km is obtained. By implementing the method, the identification precision of the cloud phase state can be effectively improved, and particularly, the mixed cloud phase state can be effectively identified.

The invention discloses a method and system for monitoring mountain fires in transmission lines, comprising the following steps: 1) establishing a basic database on a server, storing and updating in real time the latitude and longitude coordinates of fire points (obtained according to data received and measured by meteorological satellites), transmission lines Longitude and latitude coordinates and distance threshold; 2) Calculate the distance between them according to the longitude and latitude coordinates of the fire point and the longitude and latitude coordinates of the transmission line, if the distance is less than the distance threshold, then generate alarm information; 3) Push the alarm information to the mobile terminal; 4) Move After the terminal receives the alarm information, it reminds the staff to check it. The present invention enables the transmission line operation and maintenance personnel to quickly obtain the overburden fire condition of the transmission line and make a response.