Multi-simulation reference source instrument on-orbit performance evaluation method

Abstract

The invention discloses a multi-simulation reference source-based instrument on-orbit performance evaluation method, which comprises the following steps of: selecting a plurality of numerical weather analysis fields / forecast fields including ECMWF, NCEP, T639, ERA5 and GRAPES as input fields of a plurality of radiation transmission modes, generating simulation data, optimizing a multi-background field and multi-mode result by using a weighted correlation method, and evaluating the on-orbit performance of an instrument. The improved analog data is used as a reference source of the OMB method, so that the quality of observation data of an instrument can be better monitored; according to the method for evaluating the on-orbit performance of the instrument with the multiple simulation reference sources, the simulation reference sources subjected to set optimization are provided to serve as the basis of quality evaluation, and the monitoring precision of a multispectral imaging / hyperspectral detection instrument is improved; and the service assimilation application degree of satellite data in the earth system numerical forecasting center (CEMC) of the China meteorological bureau, the European mesoscale weather forecasting center (ECMWF) and the global main numerical forecasting center of the British meteorological bureau (UK-MO) is effectively improved and supported.

Description

technical field [0001] The invention belongs to the field of on-orbit performance monitoring and relates to an instrument on-orbit performance evaluation method with multiple analog reference sources. Background technique [0002] The Fengyun Meteorological Satellite is equipped with multiple multi-spectral imaging / detection instruments, such as the Fengyun-3 series Medium Resolution Spectral Imager (MERSI), Infrared Hyperspectral Sounder (HIRAS), Microwave Thermometer (MWTS), Microwave Hygrometer ( The data used by MWHS) and Microwave Imager (MWRI) are basically based on a single analog reference source data. Due to the great influence of different numerical prediction fields and radiation transfer modes, there are often differences between reference source data. These Some of the differences are caused by differences in numerical prediction fields, while others are caused by differences in radiative transfer modes. The uncertainties caused by differences are difficult to i...

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Problems solved by technology

[0002] The Fengyun Meteorological Satellite is equipped with multiple multi-spectral imaging / detection instruments, such as the Fengyun-3 series Medium Resolution Spectral Imager (MERSI), Infrared Hyperspectral Sounder (HIRAS), Microwave Thermometer (MWTS), Microwave Hygrometer ( The data used by MWHS) and Microwave Imager (MWRI) are basically based on a single analog reference source data. Due to the great influence of different numerical prediction fields and radiation transfer modes, there are often differences between reference source data. These Some of the differences are caused by differences in numerical prediction fields, while others are caused by differences in radiative transfer modes. The uncertainties caused by differences are difficult to identify and grasp. How to improve the data quality of on-orbit instruments in the numerical prediction of the earth system is an important issue. a problem solved

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