MODIS Terra / Aqua

description of data

source
NSIDC; NASA
data type
Interpreted/diagnosed from optical imagery
spatial domain
Global
spatial resolution
500 m (nominal) on sinusoidal grid

0.05° Climate Modelling Grid
temporal coverage
Terra: 24 Feb. 2000 - present
Aqua: 4 Jul. 2002 - present
time step
Sub-daily; Daily; Monthly
data format
GeoTIFF; HDF
comments
NDSI generated from optical images, with several additional filters. 
Data available as 5-min. swath scene, daily, 8 days and 1-month, in HDF-EOS2 format. Note that areas viewed under Polar Night are presumed to be snow-covered.