Latitude Dependence of Interhemispheric Field‐Aligned Currents (IHFACs) as Observed by the Swarm Constellation
Jaeheung Park, Yosuke Yamazaki, H. Lühr
Abstract
Key Points Two clearly different systems of IHFACs exist at low and middle latitudes, respectively, with a boundary near ±35° in magnetic latitudes The latitudinal and longitudinal structures of IHFACs depend strongly on wave forcing from the lower atmosphere, below 30 km Midlatitude IHFACs have similar climatology in equinoxes/June solstice, while those of December solstice exhibit different behavior
Topics & Concepts
SolsticeMiddle latitudesLatitudeAtmospheric sciencesLow latitudeAtmosphere (unit)Forcing (mathematics)Environmental scienceGeologyClimatologyPhysicsMeteorologyGeodesyIonosphere and magnetosphere dynamicsSolar and Space Plasma DynamicsGeomagnetism and Paleomagnetism Studies