Cloud Nucleation

Foreword

Preface

Introduction to Volume 11

Part 1. Nucleation of Clouds with Dry Ice (Unpublished)

Summary Of Results thus Far Obtained in Artificial Nucleation of Clouds

The Analysis of Photographic Data Showing the Effects Produced by Supercooled Clouds with Ice Nuclei

Proposed Flight Plans for Cloud Studies

The Production of Rain by a Chain Reaction In Cumulus Clouds at Temperatures Above Freezing

Studies of the Effects Produced by Dry Ice Seeding Of Stratus Clouds

Progress in Cloud Modification by Project Cirrus

Cause and Effect Versus Probability in Shower Production

A Gamma Pattern Seeding of Stratus Clouds, Flight 52, and a Race Track Pattern Seeding of Stratus Clouds, Flight 53

Results of the Seeding of Cumulus Clouds in New Mexico

Studies of Tropical Clouds

Part 2. Nucleation of Clouds with Silver Iodide (Unpublished)

Final Report, Project Cirrus. Part II. Analysis of the Effects of Periodic Seeding of the Atmosphere with Silver Iodide

1. Basic Discoveries Underlying Weather Modification

2. Seeding of Stratus and Cumulus Clouds

3. Widespread Effects from Seeding of Cumulus Clouds

4. Periodic Silver Iodide Seedings in New Mexico

5. Methods of Evaluating the Significance of the Seven-Day Periodicity In Rainfall

6. The Relation of Rainfall Distribution Functions (Skewness, Persistence, etc.) to the Evaluation of Periodicities

7. The Cumulated Significance of Periodicities in Rainfall Over Large Areas During Five Successive 28-Day Cycles

8. Periodicities in Cloudiness, Winds, Pressures, etc.

9. Periodic Flow of Moisture and Associated Rainfall in Relation to Upper Air Temperatures and the Tropopause Heights

10. Weather Bureau Data on Seven-Day Periodicities in 700-mb Temperatures Over the Northern Hemispheres During Twenty 28-Day Cycles

11. Periodicities Of 700-mb Temperatures—Distribution of Periodic Correlations, CC(28), and the Propagation of their Phases Φ Over the United States, with a Complete Harmonic Analysis of the Data for April 1950 and April 1949

12. Seven-Day Periodicities in Rainfall and the Phase Propagation Over the United States

Widespread Control of Weather by Silver Iodide Seeding

Appendix I

Appendix II