IDTCM based remote sensing ground surface temperature and time normalization method

A surface temperature, normalization technology, used in remote sensing applications, can solve the problem that the model cannot overcome wind speed fluctuations, etc.

Active Publication Date: 2016-06-01
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art, the present invention proposes a time normalization method for remote sensing surface temperature based on IDTCM. The present invention establishes an improved intraday temperature cyc

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  • IDTCM based remote sensing ground surface temperature and time normalization method

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[0045] The technical solution of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0046] The embodiment selects the adjacent areas of Zhangye City, Gansu Province for research, and the specific research area is the core test area in the Heihe River Basin Ecological-Hydrological Process Integrated Remote Sensing Observation Joint Test (HiWATER) Intensive Observation Test Area. The study area is rich in land use / cover types. The study area is located in Northwest China, and the daytime weather is mostly sunny with little cloud, and there are 3 to 4 northwest winds during most of the daytime. Therefore, this research area is suitable for studying the influence of wind speed and fluctuation intensity on the application results of the intraday temperature cycle model under sunny weather conditions. Examples Two examples are used to illustrate the effect of time normalization of surface temperature based on...

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Abstract

The invention belongs to the technical field of remote sensing applications and particularly relates to an improved diurnal temperature cycle model (IDTCM) based remote sensing ground surface temperature and time normalization method. The IDTCM based remote sensing ground surface temperature and time normalization method comprises the following steps that data pretreatment is performed, improvement is performed based on DTCM to obtain an IDTCM, remote sensing ground surface temperature and time normalization is performed and TASI aerial remote sensing ground surface temperature and time normalization is performed. By means of the method, the improved diurnal temperature cycle model is established, and the shortcoming that an existing model cannot overcome wind speed fluctuation is overcome. The remote sensing ground surface temperature and time normalization method is established based on the improved diurnal temperature cycle model.

Description

technical field [0001] The invention belongs to the technical field of remote sensing applications, and in particular relates to a time normalization method for remotely sensed surface temperature based on an improved diurnal temperature cycle model (IDTCM). Background technique [0002] On the basis of an intraday circulation model of surface temperature proposed by Parton and Logan, the academic community has successively improved and developed several other empirical statistical intraday temperature circulation models. However, most of these models are based on the assumption that the weather is clear and the wind speed is small and constant during the time frame considered. In fact, surface temperature is very sensitive to atmospheric conditions. In real natural conditions, the amount of cloud, the size of the wind speed and the intensity of the fluctuation will all have an important impact on the results of the application of the intraday temperature cycle model. If t...

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 周纪朱琳清刘绍民李国全马晋
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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