Terrestrial and Atmospheric Controls on Surface Energy Partitioning and Evaporative Fraction Regimes Over the Tibetan Plateau in the Growing Season

Land-atmosphere interactions are an essential component of the climate system. However, no detailed description underlying effects surface forcing atmosphere has been established. In this study, GLEAM, MODIS, and ERA5 were input set multiple analysis algorithms, "segmentation" was core idea method. The study area is segmented into six response functional groups, multidimensional evaporation regime function piecewise functions controlled by segment authoritative variables. Inspired heat balance equation moisture-limited, energy-limited regimes, we chose soil moisture content net radiation flux to represent energy status, respectively, leaf index (LAI) characterize vegetation cover investigate primary parameters on partitioning land evaporative regime. results show that though a coupling strength 1.8 times greater obtained when LAI used as variable instead moisture, still highest in regression tree analysis. This consistent with essence fraction indicates water should be most fundamental variable. subdivided from two phases five according such extraction vegetation, photosynthesis, shading, roughness changes, each