Cloud Properties from In-situ and Remote-sensing Measurements Capability and Limitations

The ability to measure cloud properties has advanced considerably over recent years. This chapter reviews the in-situ and remote-sensing instrumentation currently available and discusses some of the associated potential problems. The requirements for calibrations and use of well-documented software are outlined. Aerosol and cloud characteristics have vertical and geographical variations that are important, but poorly defined. The necessity to measure parameters on the scales of interest and to present those measurements in proper units is discussed. Recommendations are made regarding future actions that would be beneficial to the community. These include improvements required in the accuracy of the measurements, global datasets, and collaborations between those who make and use in-situ and remote-sensing measurements.