The LP DAAC has released a new MODIS 250 meter land–water mask (Short Name: MOD44W) on August 3, 2009. The new mask is primarily created with three different data inputs:
This marks the first time that such a global MODIS-SRTM land–water mask is offered publicly to end-users. This data set is provided in the same gridded tile structure that is common to several higher-level MODIS land products.