The main focus of the ecosystem and carbon simulation modeling group at NASA Ames is the ongoing refinement of our in-house CASA (Carnegie-Ames-Stanford Approach) model. This is a NASA supported project. NASA-CASA is one of a few satellite coupled global models that simulates controls over terrestrial production processes, and interactions of trace gas flux components through nutrient substrate availability, soil moisture availability, temperature stress, soil texture and microbial activity. The model is a highly aggregated representation of major ecosystem carbon and nitrogen pools and associated transformation variables. NASA-CASA's modeling of biogeochemical cycles of carbon and nutrients provides an understanding of biosphere-atmosphere interactions. The NASA-CASA model is a local to regional scale model that runs on a daily or monthly time interval simulating seasonal patterns in ecosystem dynamics and carbon fixation. It also determines biomass allocation, litterfall, and nitrogen mineralization in the soil. Coupled models also incorporate evapotranspiration, soil water balance, and water runoff. The model is designed to be resolution independent, gridded satellite data products representing land cover in conjunction with gridded climate data determine the net carbon inputs to terrestrial ecosystems. Field measurements of vegetation cover, carbon fluxes, and invasive species distributions are required on the California Central Coast to evaluate the model predictions.

Visit #9966 @Landels-Hill Big Creek Reserve

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Under Project # 6717 | Research

NASA Ecosystem Dynamics

professional - NASA


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Group of 2 Graduate Student May 11 - 12, 2006 (2 days)
Group of 2 Research Scientist/Post Doc May 11 - 12, 2006 (2 days)

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Whale Point Researcher Cabin 4 May 11 - 12, 2006