标题：Satellite microwave remote sensing of North Eurasian inundation dynamics: development of
coarse-resolution products and comparison with high-resolution synthetic aperture radar
data
摘要：Wetlands are not only primary producers of atmospheric greenhouse gases but also possess
unique features that are favourable for application of satellite microwave remote sensing to
monitoring their status and trend. In this study we apply combined passive and
active microwave remote sensing data sets from the NASA sensors AMSR-E and
QuikSCAT to map surface water dynamics over Northern Eurasia. We demonstrate our
method on the evolution of large wetland complexes for two consecutive years
from January 2006 to December 2007. We apply river discharge measurements
from the Ob River along with land surface runoff simulations derived from the
Pan-Arctic Water Balance Model during and after snowmelt in 2006 and 2007
to interpret the abundance of widespread flooding along the River Ob in early
summer of 2007 observed in the remote sensing products. The coarse-resolution,
25 km, surface water product is compared to a high-resolution, 30 m, inundation
map derived from ALOS PALSAR (Advanced Land Observation Satellite phased
array L-band synthetic aperture radar) imagery acquired for 11 July 2006, and
extending along a transect in the central Western Siberian Plain. We found that the
surface water fraction derived from the combined AMSR-E/QuikSCAT data sets
closely tracks the inundation mapped using higher-resolution ALOS PALSAR data.
