DYNAMICAL PROPERTIES OF THE CHROMOSPHERE AND TRANSITION REGION IN THE SUPERGRANULAR NETWORK : WHAT PRECISION OF THE SPECTRAL LINE CHARACTERISTICS CAN BE REACHED ?

W. Curdt¹, A. Kucera², J. Rybák², U. Schühle¹, H. Wöhl³

¹Max-Planck-Institut für Aeronomie, D-37189 Katlenburg-Lindau, Germany
²Astronomical Institute of the Slovak Academy of Sciences, SK-05960 Tatranská Lomnica, Slovakia
³Kiepenheuer-Institut für Sonnenphysik, D-79104 Freiburg, Germany

Max-Planck-Institut für Aeronomie, D-37189 Katlenburg-Lindau, Germany

Astronomical Institute of the Slovak Academy of Sciences, SK-05960 Tatranska Lomnica, Slovakia

Max-Planck-Institut für Aeronomie, D-37189 Katlenburg-Lindau, Germany

Kiepenheuer-Institut für Sonnenphysik, D-79104 Freiburg, Germany

Abstract:

This is a preliminary report about parallel observations of chromospheric and photospheric spectra in the ultraviolet and visible spectral regions using SUMER on SOHO and the VTT on Tenerife performed begin of September 1996. The aim is to search for relations of vertical velocity patterns in the upper photosphere and chromosphere in the solar disk center. In addition temporal changes in these parts of the solar atmosphere are investigated.

photosphere, chromosphere, vertical velocity pattern, SUMER, VTT on Tenerife