... Research

The National Center for Atmospheric Research is sponsored by the National Science Foundation.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... another

This coalignment is slightly more involved than normal because the SOHO spacecraft was rolled by 119.256$^\circ$ from the solar North-South line.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... extrapolation

While more sophisticated extrapolations, using magneto-static equilibrium calculations (as done by Metcalf et al. 1995), for example, are appealing, not enough is known concerning the gas thermodynamics to make them useful, in this context.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... UV continua

These time-series, from the MDI high resolution field of view, have a cadence of one per minute.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

...Krijger et al. 2001

This analysis includes the incorporation of the fact that the three bandpass images are not taken simultaneously, thus, the phase-difference spectra require a frequency-dependent shift to be calculated and applied.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.