Statistical Study of the Large-scale Structure of the Chromospheric Doppler Velocities from 2D-spectroscopy within the HeI 10830 Å line

The map of the large-scale chromospheric Doppler velocities (VD) on the solar disk, obtained from 2D-spectroscopy within the HeI 10830 Å line for June 4 2002, is presented. Velocity field structures larger than the supergranulation cells are studied. Statistical relations between VD and 1) the intensity in the core of the HeI 10830 Å line and 2) the sign and strength of the longitudinal photospheric magnetic field are obtained and discussed.