ESA GlobSnow Snow Water Equivalent (SWE) NRT demonstration product ------------------------------------------------------------------- Disclaimer: The GlobSnow SWE product is derived using a combination of ground based data and satellite microwave radiometer-based measurements. Due to the nature of the radiometer observations, the SWE product is reliably shown on areas with seasonal dry snow cover. Areas with sporadic wet snow or a thin snow layer are not reliably detected and typically not present on the SWE product. The areas marked as snow free may thus include areas with occasional wet snow cover. It has been quite typical to have a radiometer detectable snow cover for Northern Hemisphere (within the area monitored on the ESA GlobSnow project) between 15 - 25 October. Some years it is seen even later. If there is no data available on this directory, it means that the snow cover is still too sparse to be reliably detected on Northern Hemisphere.