The global map of transboundary aquifers (TBAs) shows the surface delineation of aquifers extending over country borders.

Provides for Northern Hemisphere daily maps of the fraction of snow cover on ground (also in forested areas) per pixel in percentage (0% – 100%). The data is available in near real time with a pixel spacing of about 1 km and with the temporal extent from January 2018 to present.

GTOPO30 is a global digital elevation model (DEM). It was derived from several raster and vector sources of topographic information. GTOPO30, completed in late 1996, was developed over a three year period through a collaborative effort led by staff at the U.S. Geological Survey's Center for Earth Resources Observation and Science (EROS).

Maps of aquifers and their characteristics at European Union scale, dated 1982. Total of 38 map sheets covering 9 countries (Belgium, Germany, Denmark, France, Ireland, Italy, Luxembourg, Netherlands and the UK)

The G-REALM (Global Reservoirs and Lakes Monitor) product service provides near-real time data on water level variations of lakes, reservoirs and rivers larger than 100 km2 around the world (264 stations) based on multi-sensor satellite altimetry.

The Danubis Water Quality Database of the ICPDR contains combined measurements from the TransNational Monitoring Network (TNMN) and the Joint Danube Surveys from 2001 (JDS1), 2007 (JDS2) and 2013 (JDSE3). The TNMN includes 79 monitoring locations with up to three sampling points across the Danube and its main tributaries river. The minimum sampling frequency is 12 times per year for chemical determinands in water and twice a year for biological parameters.

historical time series of common climate indices (e.g. ENSO)

The Global Lake/Reservoir Storage Time Series is derived from the Surface Water Height Time Series and Surface Water Extent Mask Time Series products.

Estimates of population density with age/sex breakdowns for each 100m x 100m grid square on the planet.

The Global Precipitation Climatology Project (GPCP) consists of monthly satellite-gauge and associated precipitation error estimates and covers the period January 1979 to the present. The general approach is to combine the precipitation information available from each of several satellite and in situ sources into a final merged product, taking advantage of the strengths of each data type: passive Microwave estimates are based on SSMI/SSMIS data; infrared precipitation estimates are included, using GOES data and POES data; as well as other low earth orbit data and insitu observations. Data are provided on a 2.5 degree grid.