The combination of auroral imaging and spacecraft in-situ measurements for M-1 coupling research H.U. Frey, S.B. Mende, T.J. Immel, N. Ostgaard, T.D. Phan Space Sciences Laboratory, University of California, Berkeley, CA The IMAGE spacecraft is a new kind of remote sensing satellite that allows the study of the magnetosphere and its interaction with the solar wind. The major advantage of remote sensing observations over in-situ measurements is the long duration of observations of wide spatial regions even as the spacecraft moves along its orbit. However, the quantitative analysis of such observations always requires some kind of mathematical and physical inversion. The major advantage of in-situ measurements is the direct measurement of physical properties without the need of inversion techniques. The disadvantage is the motion of the spacecraft that can quickly move it away from regions of interest like the magnetopause of magnetotail neutral sheet. In this presentation we will discuss several results of ionospheric-magnetospheric coupling research that involved auroral imaging from IMAGE and other spacecraft like Cluster, FAST, and DMSP. These results involve investigation of magnetopause reconnection, ion outflow, spatial and temporal changes of particle precipitation, and particle acceleration. _______________ Presented at the 35th COSPAR Scientific Assembly, Paris, France, July 18-25, 2004.