Coupling the terrestrial hydrology model with biogeochemistry to the integrated LAND surface model: Amazon Basin applications |
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| Authors: | Aline Anderson de Castro Luz Adriana Cuartas Michael T Coe Celso Von Randow Andrea Castanho Alex Ovando |
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| Institution: | 1. Earth System Sciences Centre, National Institute for Spatial Research, S?o José dos Campos, S?o Paulo, Brazilacaline@gmail.com;3. National Centre for Monitoring and Alert for Natural Hazards, S?o José dos Campos, S?o Paulo, Brazil;4. Woods Hole Research Center, Woods Hole, Massachusetts, USA;5. Earth System Sciences Centre, National Institute for Spatial Research, S?o José dos Campos, S?o Paulo, Brazil |
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| Abstract: | ABSTRACTWe coupled the hydrologic routing and flood dynamics model Terrestrial Hydrology Model with Biogeochemistry (THMB) to the Integrated LAND Surface Model (INLAND) and compared simulations of the discharge and flood extent area against gauge station and satellite-based information in the Amazon Basin. The coupled model represents well the seasonality of the flooding and discharge, but underestimates both of them. This can be related to an already discussed underestimate of the precipitation in the east of the Andes Mountains. A photosynthesis limitation on the flooded area was also included, showing changes in plant productivity and reduction in vegetation carbon stocks. Despite its limitations, the model proves to be a valuable tool for studies of the hydrological cycle and flood dynamics response to climate change projections, allowing it to be used to represent the feedbacks between continental surface water cycle and vegetation. |
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| Keywords: | water balance hydrological modelling dynamic vegetation model Amazon flood dynamics photosynthesis |
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