Small mobile eddy correlation turbulence water and heat fluxes observation system and method

Abstract

The invention provides a small mobile eddy correlation turbulence water and heat fluxes observation system and method. The small mobile eddy correlation turbulence water and heat fluxes observation system is carriedabove a fixed-wing drone andcomprises an onboard 5-hole turbulence probing head, a thermocouple probing pin, a quick response hygrometer, a temperature and humidity sensor, a net radiometer, a photosynthetically active radiometer, an infrared thermometer, a laser altimeter, a GPS-assisted inertial navigation system, a wireless communication module, an input device, an analog / digitalsignal converter, and a data acquisition control computer. The small mobile eddy correlation turbulence water and heat fluxes observation system and method have the advantages that the small mobile eddy correlation turbulence water and heat fluxes observation system is carriedonthe fixed-wing drone and used for direct observation of earth surface turbulence water and heat fluxes at a regional scale, and the advantages of having low observation cost and good portability and flexibility are obtained. The range of the earth surface representable by flux calculation result ofeach turbulence fluxobservation windowscancommonly cover several square kilometers, and the research and application of moderate and coarse resolution remote sensing images and land surface process model grid scale can be sufficiently satisfied.

Description

technical field [0001] The invention belongs to the technical field of terrestrial ecosystem flux observation, and in particular relates to a small-scale moving eddy-related turbulent water-heat flux observation system and method. Background technique [0002] Accurate measurement of matter and energy exchange fluxes between terrestrial ecosystems and the atmosphere, especially the direct measurement of matter and energy between the earth and the atmosphere at the regional scale, is essential for in-depth understanding of the mechanism and change trends of matter and energy cycle processes in ecosystems. It is also of great significance to understand the laws and mechanisms of ecosystem responses and feedbacks to changes in human activities. In addition, the direct observation of water, heat, and material fluxes in terrestrial ecosystems plays an important role in improving and developing various land surface process models, ecosystem process models, and regional climate mod...

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Problems solved by technology

However, in our country, there are no mature technical solutions and related patent reports to realize the observation of mobile eddy-related turbulent flux based on the UAV platform.

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