Interplanetary magnetic field control of polar patch velocity
نویسندگان
چکیده
منابع مشابه
Interplanetary magnetic field control of Saturn’s polar cusp aurora
Dayside UV emissions in Saturn’s polar ionosphere have been suggested to be the first observational evidence of the kronian “cusp” (Gérard et al., 2004). The emission has two distinct states. The first is a bright arclike feature located in the pre-noon sector, and the second is a more diffuse “spot” of aurora which lies poleward of the general location of the main auroral oval, which may be re...
متن کاملNeutral Motions in the Polar Thermosphere for Northward Interplanetary Magnetic Field
On 24th November, 1982, The North-South (Bz) component of the Interplanetary Magnetic Field (IMF) became positive for a period of about 11 hours reaching a relatively large and steady value of---25 nT. During this rare occurrence, the Dynamics Explorer-2 (DE-2) spacecraft was in a configuration that enabled the dynamics of both ionic and neutral species of the high-latitude F-region to be measu...
متن کاملSolar Wind Anr Interplanetary Magnetic Field
1. Basic Concepts 2. Sun and Heliosphere at Times of Solar Activity Minimum 2.1. Typical Solar Wind and its Sources 2.2. The Ballerina Model 2.3. Solar Wind Stream Structure 2.4. The Two Basic States of the Solar Wind 2.4.1. Differences 2.4.2. Communities 2.5. Solar Wind Acceleration and Expansion 2.6. Solar Wind Streams and Their Interactions 2.6.1. Corotating Interaction Regions in the Inner ...
متن کاملFilamentary field-aligned currents at the polar cap region during northward interplanetary magnetic field derived with the Swarm constellation
ESA's Swarm constellation mission makes it possible for the first time to determine field-aligned currents (FACs) in the ionosphere uniquely. In particular at high latitudes, the dual-satellite approach can reliably detect some FAC structures which are missed by the traditional single-satellite technique. These FAC events occur preferentially poleward of the auroral oval and during times of nor...
متن کاملInterplanetary Magnetic Field Structures out of the Ecliptic
New observations of the out-of-the ecliptic trajectories of type III solar radio bursts have been obtained from simultaneous direction finding measurements on two independent satellite experiments, IMP-6 with spin plane in the ecliptic, and RAE-2 with spin plane normal to the ecliptic. Burst exciter trajectories were observed which originated at the active region and then crossed the ecliptic p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2003
ISSN: 0148-0227
DOI: 10.1029/2002ja009742