Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Extended period prediction method considering large-scale circulation background field

A background field, large-scale technology, used in forecasting, weather forecasting, instruments, etc., can solve the problem of less investigation of large-scale low-frequency background field applications, and achieve the effect of improving forecasting skills

Active Publication Date: 2018-10-12
NANJING UNIV OF INFORMATION SCI & TECH
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the previous statistical forecasts focused on the influence of tropical convection (MJO), seldom considered the joint effects of mid-high latitudes and the tropics at the same time, and seldom examined the application of large-scale low-frequency background fields above 30 days in the extended period prediction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Extended period prediction method considering large-scale circulation background field
  • Extended period prediction method considering large-scale circulation background field
  • Extended period prediction method considering large-scale circulation background field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] This embodiment uses 10-30 days to forecast the Jiangnan April-June precipitation, illustrates the general train of thought and effect of the present invention.

[0039]First, based on the daily precipitation data from China National Meteorological Observatory from 1979 to 2013, the daily global reanalysis data from NCEP (National Centers for Environmental Prediction) / NCAR (National Center for Atmospheric Research) and the daily data provided by NOAA (National Oceanic and Atmospheric Administration) Wave radiation data, fitted forecast for 1979-2003 and independent forecast for 2004-2013. Subtract the component below 10d from the component below 30d to get the low frequency component of 10-30d. Use the above filtering method to filter the data field to separate the 10-30d component and the above 30d component. This filtering method...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an extended period prediction method considering a large-scale circulation background field. By considering of different large-scale circulation backgrounds, in combination with the high-latitude and tropic interaction and influence thereof on the weather in an area extended period in a use process, optimal factors in different backgrounds are selected; and, due to regression of multiple factors, a target is predicted. According to the extended period prediction method considering the large-scale circulation background field disclosed by the invention, for different large-scale background fields, prediction is carried out by selection of proper factors; therefore, the prediction skill is improved; and the method has wide application prospect in diagnostic analysis and prediction for multi-scale characteristic variables.

Description

technical field [0001] The invention belongs to the technical field of atmospheric science forecasting, and in particular relates to an extended-period forecasting method considering a large-scale circulation background field. Background technique [0002] In recent years, frequent meteorological disastrous weather and the secondary disasters caused by it have drawn extensive attention from the state, society and the public. Faced with this sudden and repeated abnormal weather, the meteorological department has matured the short-term and medium-term weather forecasting technology for below 10 days at this stage, and the short-term climate forecast above the monthly scale has been gradually improved since 1985, and a complete forecasting system has been established. Relatively speaking, there is still a lot of room for development in the 10-30d extended-range forecast, and both academic research and operational applications deserve further attention. In addition to the inter...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06Q10/04G06Q50/26G01W1/10
CPCG06Q10/04G06Q50/26G01W1/10
Inventor 谭桂容曲金华王一舒
Owner NANJING UNIV OF INFORMATION SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com