Retrieval method and device for water vapor profile

• Main Authors: WANG ZHONGTING, ZHANG LIJUAN, ZHANG YUHUAN, MAO HUIQIN, LI QING, CHEN HUI, WANG QIAO, MA PENGFEI, ZHOU CHUNYAN, CHEN CUIHONG
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2016
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a retrieval method and device for a water vapor profile.The method comprises the steps of obtaining mode data from an NCEP and hyperspectral satellite data from a CrIS; according to the mode data and the hyperspectral satellite data, searching for an experience orthogonality regression coefficient matched with the hyperspectral satellite data in a database, wherein the database comprises one or more experience orthogonality regression coefficients; according to the hyperspectral satellite data and the experience regression coefficient, conducting retrieval, so that the water vapor profile is obtained, wherein the simulation radiation value of a training sample and an experience orthogonality expansion matrix of the water vapor sample profile are fitted through a least square method, calculation is conducted, and the experience orthogonality regression coefficient is obtained.By means of the retrieval method and device, the water vapor profile can be obtained stably and rapidly through