Long name: 
Level 2 Pre-processed
On top of levels from L0 to L4 defined by the remote sensing community to describe the processing level of products, the SST community has developed a set of SST definitions in the context of the GHRSST. L2P products are satellite SST observations together with a measure of uncertainty for each observation in a common GHRSST netCDF format. Auxiliary fields are also provided for each pixel as dynamic flags to filter and help interpret the SST data.