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Fire is an integral Earth System process that interacts with climate in multiple ways. Here we assessed the parametrization of fires in the Community Land Model (CLM-CN) and improved the ability of the model to reproduce contemporary global patterns of burned areas and fire emissions. In addition to wildfires we extended CLM-CN to account for fires related(More)
[1] Increasing the albedo of urban surfaces has received attention as a strategy to mitigate urban heat islands. Here, the effects of globally installing white roofs are assessed using an urban canyon model coupled to a global climate model. Averaged over all urban areas, the annual mean heat island decreased by 33%. Urban daily maximum temperature(More)
Visualization has become a vital tool for representing the results of scientific models in decision support applications. Both the raw data and the models from which these visualizations are derived usually have considerable uncertainty associated with them. Decision-makers are typically presented with results from these models with little or no insight as(More)
Adding the effects of changes in land cover to the A2 and B1 transient climate simulations described in the Special Report on Emissions Scenarios (SRES) by the Intergovernmental Panel on Climate Change leads to significantly different regional climates in 2100 as compared with climates resulting from atmospheric SRES forcings alone. Agricultural expansion(More)
Files: Document: tjackson_text.docx (includes coversheet, text, captions, references) Captions: tjackson_captions.docx (as requested by graphics guidelines) Table: tjackson_table.xls (very large and complex so not printed) Figures: Abstract To help understand potential effects of urbanization on climates of varying scales and effects of climate change on(More)
6 7 1. Background 8 9 During its 26 th meeting in Bangkok in May 2007, the IPCC requested the preparation of a new set of 10 scenarios to facilitate future assessment of climate change. This new set (that is intended to replace and 11 extend the scenarios used in earlier IPCC assessments) should be compatible with the full range of 12 stabilization,(More)
Supporting material prepared for consideration by the Intergovernmental Panel on Climate Change. This material has not been subjected to formal IPCC review processes. This expert meeting was agreed in advance as part of the IPCC work plan, but this does not imply working group or panel endorsement or approval of this report or any recommendations or(More)
The Technical Notes series provides an outlet for a variety of NCAR Manuscripts that contribute in specialized ways to the body of scientific knowledge but that are not suitable for journal, monograph, or book publication. Reports in this series are issued by the NCAR scientific divisions. Designation symbols for the series include: recommendations(More)
Public policy makers and others wishing to understand the potential impact of our actions on the environment need a tool to simulate and visualize relevant processes. Present models and the data on which they operate have considerable variability which translates into uncertainty in model results. Decision makers must understand and consider not only raw(More)