scope:

C. SCOPE

The scope of the overall project has included acquisition and testing of databases and models, development and application of model evaluation software, and assessment of the components of uncertainty.

The current volume (I) is intended to serve as a user's guide to the generic model evaluation software packages, without reference to specific models or issues.

We emphasize in this volume the application aspects of (1) the statistical model evaluation software (BOOT), (2) the scientific model evaluation software (RESIDUAL) using the residual plots, and (3) various routines to investigate model uncertainty due to input data errors and concentration fluctuations. Model uncertainty due to model physics errors is assessed in Volume III.

The blocked bootstrap resampling procedure is used in the BOOT program to estimate the confidence intervals on various model performance measures. Input and output files for the BOOT and RESIDUAL programs are described and presented, and test cases are discussed.

A simple two-dimensional plotting package (SIGPLOT) is also documented in the current volume. The results from both the BOOT and RESIDUAL programs can be easily plotted using the SIGPLOT plotting package.