Ocean related data sets with the parameters sea surface height (SSH), salinity, ocean temperature and currents, tides, chlorophyll concentration, climatologies and more are available here.
Ice and snow data sets are available over land, or on the ocean with parameters like ice cover, area, drift, type and thickness, snow cover and depth, melt ponds, polynyas, leads, ice caps and glaciers.
The German General Social Survey (ALLBUS), Integrated Island Database (IIDAB), Media orientations of climate scientists, and Online Media Monitor are examples for this category.
The Integrated Climate Data Center (ICDC) allows easy access to climate relevant data from in-situ measurements and satellite remote sensing. These data are important to determine the status and the changes in the climate system. Additionally some relevant re-analysis data are included, which are modeled on the basis of observational data.