1 INTRODUCTION

2 H I DATA  
2.1 Compact Array Observations  
2.2 Archival Data Sets: SGPS and VGPS Data  
2.3 Receiver Noise and Emission Fluctuation  

3 RESULTS AND ANALYSIS  
3.1 Resolving the Kinematic Distance Ambiguity  
3.2 Notes on Specific Sources  
3.3 Comparison of High and Low Resolution Data  
3.4 Comparison with Previous Studies  

4 GALACTIC STRUCTURE

5 SUMMARY