Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a–e) In situ plasma density (at ∼845 km altitude), cross‐track velocity (positive values indicating westward flows), the magnetic field perturbations (an increase in the azimuthal direction toward higher latitudes indicating downward field‐aligned currents), and the energy spectrum of the precipitating electrons and ions measured by DMSP F17. (f–j) Similar to (a–e) but showing measurements of F16.
