The purpose of this work is to compare the microphysical and dynamical characteristics of Arctic clouds obtained from aircraft, lidar, and LANDSAT observations. In-situ observations were collected by the NRCC (National Research Council of Canada) Convair-580 during FIRE III (First ISCCP (International Satellite Cloud Climatology Project) Regional Experiment) which took place over the Arctic ocean during April of 1998. An aircraft mounted lidar with depolarization capability, and LANDSAT, provided remote sensing observations. The April 8 and 24 cases were used in the analysis. The ocean surface characteristics were different based on the ratio of open water surface to ice surface. More open water regions were seen for the April 24 case. Cloud liquid water content (LWC), ice water content (IWC), and total water content (TWC) were calculated using measurements of the King and Nevzorov probes, and FSSP. The Particle Measuring Systems 2D-C probe measurements were used for calculating cloud particle size, shape, and number concentrations. Vertical air velocity and turbulent fluxes along 30 km legs were obtained using the Rosemount 858 5-hole pressure probe and Litton LTN-90-100 Inertial Reference Systems measurements, and EG&G dew-point and Reverse-flow temperature measurements, respectively. The LANDSAT and an aircraft mounted LANDSAT simulator observations were also used to study dynamical structures, microphysics, and optical characteristics. The lidar data collected at 1064 nm were used to support the results obtained from aircraft and satellite observations. Preliminary results indicate that the magnitudes and variability, and profiles of observations were different for each case. Overall, the differences in both cases will be summarized to help better represent these clouds in large scale models.