关键词：大气；二氧化碳存储；温室气体
摘 要：In response to the Energy Independence and Security Act (Public Law 110-40, 2007), the U.S. Geological Survey (USGS) conducted a national assessment of potential geologic storage resources for carbon dioxide (CO2). Storage of CO2 in subsurface saline formations is one important method to reduce greenhouse gas emissions and curb global climate change (Benson and Cook, 2005). The assessment methodology describes the probabilistic model developed to calculate potential storage resources in subsurface saline formations. This report documents both the methodology updates and the details of methodology implementation and is meant to supplement the Brennan and others (2010) methodology and the national assessment final reports. The final reports will include (1) an assessment results report with all output results, a description of the assessment, and analysis; (2) an assessment summary report; and (3) an assessment data report, which will include data inputs and outputs, assessment forms, resource allocations, and figures.