For completeness, this report briefly describes the directional gauge geometry 

 and data collection scheme (Chapter 2), error checking procedures and basic di- 

 rectional estimation algorithm (Chapter 3), and definitions of parameters used to 

 characterize the observations (Chapter 4). Appendix A contains a table of these 

 characterizing parameters, and acts as an index for the 1994 database. Time series 

 graphs of these parameters are presented in Appendix B. Chapter 5 describes how 

 data can be obtained as well as the data format and file-naming scheme. 



Chapter 1 Introduction 



