Precipitation product integration method of geostationary meteorological satellite and polar-orbiting meteorological satellite

A technology of geostationary meteorological satellites and meteorological satellites, applied in the field of satellite product integration, can solve the problems of high temporal and spatial resolution, low temporal and spatial resolution, and low precision, and achieve the effect of high integration, high precision and high resolution

Inactive Publication Date: 2019-04-26
张萍
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Problems solved by technology

[0005] Purpose of the invention: Through the integration method of precipitation products from geostationary meteorological satellites and polar orbiting meteorological satellites, solve the problem of high temporal and spatial resolution of precipitation products retrieved by geostationary meteorological satellites but low precision, and high precision but low

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Embodiment Construction

[0018] In this embodiment, the infrared observation information of the FY-2E geostationary meteorological satellite in East Asia in 2016 is integrated with the FY-3B / MWRI precipitation products and TRMM / TMI precipitation products. Including the following 4 steps:

[0019] Step 1: Data collection and acquisition. Collect FY-2E geostationary meteorological satellite infrared observation information, FY-3B / MWRI precipitation products, and TRMM / TMI precipitation products in East Asia throughout 2016. The infrared observation data of the FY-2E geostationary satellite is obtained by extracting and calculating the hourly nominal disk diagram of the geostationary satellite.

[0020] Step 2: Analyze and project the collected data.

[0021] Step 3: Satellite microwave precipitation integration. Including: space-time matching, PDF statistics, PDF correction, microwave precipitation integration. Using PDF correction to eliminate systematic differences between different satellite micro...

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Abstract

The invention discloses a precipitation product integration method of a geostationary meteorological satellite and a polar-orbiting meteorological satellite. A Lagrange integration algorithm is adopted, infrared observation information of the geostationary meteorological satellite is used for computing infrared cold cloud moving vector to provide a constraint condition for the development of polar-orbiting meteorological satellite microwave precipitation, and therefore the integration of the infrared observing information of the geostationary meteorological satellite and the polar-orbiting meteorological satellite microwave precipitation is achieved. According to the method, the respective advantages of the geostationary meteorological satellite and the polar-orbiting meteorological satellite can be fully achieved through the integral application of the geostationary meteorological satellite and the polar-orbiting meteorological satellite.

Description

technical field [0001] The invention relates to the field of satellite product integration, in particular a method for integrating precipitation products of geostationary meteorological satellites and polar orbiting meteorological satellites is invented. Background technique [0002] Since the Fengyun Meteorological Satellite was included in the global Earth observation satellite sequence by the World Meteorological Organization and became an important member of the Global Earth Observation System, China has launched three more geostationary meteorological satellites, FY-2D, FY-2E, and FY-2F, and FY -3A, FY-3B, and FY-3C are three polar-orbiting meteorological satellites. These satellites have played an important role in weather forecasting, typhoon monitoring, and flood monitoring. They also have their own advantages in precipitation inversion. [0003] FY-2 series geostationary meteorological satellites have high spatial-temporal resolution for earth observation, and can i...

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Application Information

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IPC IPC(8): G01W1/14
CPCG01W1/14
Inventor 张萍
Owner 张萍
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