Sea-Ice thickness from ICESat data (Arctic) Sample map of the
ICESat-data based Arctic sea-ice thickness distribution for the
period October/November 2005. The data are available via this
link. Travel time measurements of laser pulses emitted by the
GLAS instrument aboard the ICESat satellite allow the
determination of the sea-ice freeboard height with centimeter
accuracy. Under certain assumptions and taking additional data
like the distribution of multiyear ice and the snow depth on sea
ice into account (see references), the freeboard height can be
converted into an ice thickness. The data set available here
comprises data from 10 ICESat measurement periods, i.e. a time
series of two measurements of the Arctic sea-ice thickness
distribution every winter (October/November and February/March)
for winters 2003/04 until 2007/08 with a grid resolution of 25
km x 25 km. Coverage, spatial and temporal resolution Period and
temporal resolution: These are data from selected ICESat-GLAS
sensor measurement periods for