Development and Improvement of Temporal Allocation Factor Files

摘要

The report gives results of a project to: (1) evaluate the quality andcompleteness of data and methods being used for temporal allocation of emissions data, (2) identify and prioritize needed improvements to current methods for developing temporal allocation factors (TAFs), and (3) collect data to improve existing TAF files. The project focused on improving profiles for stationary point sources. Well-documented, national default allocation profiles were developed. The availability of an improved TAF file does not eliminate the need to collect actual data for temporally resolved emissions when these data are needed for an emissions inventory. The TAF file provides an improved database of default values that should be used when actual data cannot be collected.