Xie, Y.; Wen, J.; Zhang, Y.; Chen, J.; Yang, X. A Study of the Influence of Environmental Factors on Water–Heat Exchange Process in Alpine Wetlands. Atmosphere2023, 14, 1802.
Xie, Y.; Wen, J.; Zhang, Y.; Chen, J.; Yang, X. A Study of the Influence of Environmental Factors on Water–Heat Exchange Process in Alpine Wetlands. Atmosphere 2023, 14, 1802.
Xie, Y.; Wen, J.; Zhang, Y.; Chen, J.; Yang, X. A Study of the Influence of Environmental Factors on Water–Heat Exchange Process in Alpine Wetlands. Atmosphere2023, 14, 1802.
Xie, Y.; Wen, J.; Zhang, Y.; Chen, J.; Yang, X. A Study of the Influence of Environmental Factors on Water–Heat Exchange Process in Alpine Wetlands. Atmosphere 2023, 14, 1802.
Abstract
Wetlands, which is composed of soil, vegetation and water, has sufficient water supply and is sensitive to climate change. This study analyzed the coupling degree between wetlands and atmosphere, and discussed the influence of environmental factors (solar radiation and water vapor pressure deficit) on latent heat flux by using the experimental data from the Maduo Observatory of Climate and Environment of the Northwest Institute of Eco-Environment and Resource, CAS and WRF model. The results showed, during the vegetation growthing season, the average value of Ω (decoupling factor) is 0.38 in alpine wetlands, indicating the coupling between wetlands and atmosphere is poor; Solar radiation is the main factor influencing the latent heat flux in the results of both observation data analysis and model simulation, and solar radiation and water vapor pressure deficit still have an opposite reaction to latent heat flux; when solar radiation and water vapor pressure deficit increase by 30%, the average daily amount of latent heat flux increases from 5.57 MJ·m-2 to 7.50 MJ·m-2 and decreases to 5.17 MJ·m-2, respectively. This study provides a new research approach for the study of the parameterization of latent heat flux and evapotranspiration under the context of global climate change.
Keywords
Source region of the Yellow River; WRF; Latent heat flux; decoupling coefficient (Ω); Solar radiation; Water vapour pressure deficit
Subject
Environmental and Earth Sciences, Atmospheric Science and Meteorology
Copyright:
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