Auroral Dynamics and Space Weather E-Book

Yongliang Zhang

• Herausgeber: John Wiley & Sons
• Kategorie: Wissenschaft und neue Technologien
• Serie: Geophysical Monograph Series
• Sprache: Englisch

Seitenzahl: 916

Veröffentlichungsjahr: 2015

Beschreibung

The aurora is the most visible manifestation of the connection of the Earth to the space environment and has inspired awe, curiosity, and scientific inquiry for centuries. Recent advances in observing techniques and modeling and theoretical work have revealed new auroral phenomena, provided a better understanding of auroral dynamics, and have led to an enhanced capability for auroral forecasts. This monograph features discussions of: * New auroral phenomena due to the ring current ion and polar rain electron precipitation * Various auroral forms and hemispheric asymmetry * Auroral model development and MHD simulations * Application of the auroral observations for radio absorption and scintillation * Aurora nowcast and forecast for space weather operations Auroral Dynamics and Space Weather is a valuable contribution for scientists, researchers, space weather operators, and students of Earth's space environment.

Leseprobe

Table of Contents

Cover

Title Page

CONTRIBUTORS

PREFACE

ACKNOWLEDGMENTS

Part I: Aurora Types and Dynamics

1 Investigations of the Many Distinct Types of Auroras

1.1. OVERVIEW

1.2. DIFFUSE AURORA

1.3. DISCRETE AURORA

1.4. DYNAMIC AURORA AND SMALL-SCALE AURORAL STRUCTURES

REFERENCES

2 Quasiperiodic Aurora: Outstanding Problems and Recent Results

2.1. INTRODUCTION

2.2. FLICKERING AURORA

2.3. PULSATING AURORA

2.4. CONCLUDING REMARKS

ACKNOWLEDGMENTS

REFERENCES

3 Inverted-V Auroral Arcs and Alfvén Waves

3.1. INTRODUCTION

3.2. OBSERVATIONS AND INTERPRETATION

3.3. CONCLUSION

ACKNOWLEDGMENTS

REFERENCES

4 Auroral Arcs and Ion Outflow

4.1. INTRODUCTION

4.2. ACCELERATION MECHANISMS

4.3. OBSERVATIONS: SPATIAL DISTRIBUTION AND RELATIONSHIP WITH AURORAL ARC MORPHOLOGY

4.4. IMPACT ON IONOSPHERIC AND MAGNETOSPHERIC DYNAMICS

4.5. CONCLUSION

ACKNOWLEDGMENT

REFERENCES

5 Isolated Proton Auroras and Pc1/EMIC Waves at Subauroral Latitudes

5.1. INTRODUCTION

5.2. OBSERVATION SITE AND INSTRUMENTATION

5.3. EVENT DETECTION METHODS

5.4. STATISTICAL RESULTS

5.5. SUMMARY AND DISCUSSION

ACKNOWLEDGMENTS

REFERENCES

6 Dynamics of the Dayside Aurora as Viewed from the South Pole

6.1. INTRODUCTION

6.2. INSTRUMENTATION

6.3. RESULTS

6.4. DISCUSSION

6.5. CONCLUSIONS

ACKNOWLEDGMENTS

REFERENCES

7 Structures in Polar Rain Auroras

7.1. INTRODUCTION

7.2. OBSERVATIONS OF POLAR RAIN AURORA

7.3. STATISTICAL STUDY OF POLAR RAIN ELECTRON STRUCTURES

7.4. NIGHTSIDE POLAR RAIN GAP AND ENERGY DISPERSION

7.5. SUMMARY

ACKNOWLEDGMENTS

REFERENCES

8 Dynamics Related to Plasmasheet Flow Bursts as Revealed from the Aurora

8.1. INTRODUCTION

8.2. ASSOCIATIONS BETWEEN FLOW BURSTS AND AURORA STREAMERS

8.3. WESTWARD TURNING OF FLOW BURSTS

8.4. DISTURBANCES FORMED VIAFLOW BURSTS

8.5. CONCLUSIONS

ACKNOWLEDGMENTS

REFERENCES

9 Role of Multiple Atmospheric Reflections in Formation of Electron Distribution Function in the Diffuse Aurora Region

9.1. INTRODUCTION

9.2. MODEL AND PHYSICAL SCENARIO

9.3. SE ATMOSPHERE−MAGNETOSPHERE COUPLING

9.4. ATMOSPHERIC ALBEDO AND ITS PHENOMENOLOGY

9.5. DISCUSSION AND CONCLUSION

ACKNOWLEDGMENTS

REFERENCES

Part II: Hemispheric Conjugacy of Auroras

10 Mechanisms that Produce Auroral Asymmetries in Conjugate Hemispheres

10.1. INTRODUCTION

10.2. RECENT RESULTS

10.3. SUMMARY

ACKNOWLEDGMENTS

REFERENCES

11 Interhemispheric Symmetries and Asymmetries of Aurora from Ground-Based Conjugate Observations

11.1. INTRODUCTION

11.2. OBSERVATION

11.3. SUMMARY AND DISCUSSION

ACKNOWLEDGMENT

REFERENCES

Part III: Substorm Aurora

12 Magnetospheric Substorm Onset by Current Disruption Processes

12.1. INTRODUCTION

12.2. OBSERVATIONS OF THE SUBSTORM CURRENT SYSTEM

12.3. THE CURRENT DISRUPTION MODEL FOR THE SUBSTORM CURRENT SYSTEM

12.4. OBSERVATIONS PERTAINING TO SUBSTORM CURRENT SYSTEM

12.5. SOME DISTINGUISHING FEATURES BETWEEN THE TWO PREVAILING SUBSTORM MODELS

12.6. SUMMARY AND DISCUSSION