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Carbon and energy fluxes simulated by the Noah LSM and the Community Land Model

Lindsey Elizabeth Gulden, The Jackson School of Geosciences at the University of Texas at Austin, gulden@mail.utexas.edu (Presenting)
Enrique Xavier Rosero, The Jackson School of Geosciences at the University of Texas at Austin, erosero@mail.utexas.edu
Zong-Liang Yang, The Jackson School of Geosciences at the University of Texas at Austin, liang@mail.utexas.edu
Guo-Yue Niu, The Jackson School of Geosciences at the University of Texas at Austin, niu@geo.utexas.edu

We present carbon and energy fluxes for sites in the Amazon River basin simulated by several versions of two state-of-the-art land surface models (LSMs). Multiple versions of the Community Land Model (CLM) and the Noah LSM are driven at the eight LBA-ECO sites using 3 - 4 years of point-scale meteorological forcing data and are evaluated against energy and carbon fluxes obtained using eddy covariance methods. Uncalibrated results are presented for all sites; optimized model results are presented for Santarem 83. We quantify changes in model performance as the base models are augmented with new, conceptually realistic parameterizations (e.g., a groundwater module, a dynamic phenology module). We assess shifts in model performance across a gradient of vegetation (e.g., ranging from pasture land to savanna to tropical forest) and between wet and dry periods.

Science Theme:  CD (Carbon Dynamics)

Session:  3B: Carbon and Energy Fluxes

Presentation Type:  Oral (view presentation (720 KB))

Abstract ID: 76

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