The ESA Sounder Campaign 2011 (ESSenCe) conducted field measurements utilising the high-altitude research aircraft Geophysica to quantify processes that control the composition and structure of the mid to upper troposphere and lower stratosphere.
The Nordic Snow Radar Experiment (NoSREx) took place between November 2009 and May 2010. The objective of the campaign was to provide a continuous time series of active and passive microwave observations of snow cover in a representative location.
As a candidate of the Earth Explorer Programme, the European Space Agency proposed the (CoReH2O) mission, consisting of a satellite mission for the monitoring of snow, glaciers and surface water, based on a dual frequency SAR sensor.
The main objective of the SnowSAR campaign was the provision of radiometric calibrated airborne SAR data needed to characterise the backscattering signatures of snow and other terrain types (e.g. trees).