The 2nd day of the IESWG meeting covered several Global and Regional Land Data Assimilation Systems their overviews and recent progress.
Few key outcomes:
Unification of LDAS methodology and system has greater sustainability, and is a target highlighted both in UKMO and ECMWF presentations.
2DVAR 2DEnVAR show adtantages over the OI and can more easily accomodate satellite data (starting from ASCAT) as shown in DWD presentation.
New SnoTEL network insitu snow depth observation entering GTS, DWD showed benefits (1000 more observations) and challenges for the DWD LDAS. COOP observations should be in the pipeline for being shared.
JMA showed encouraging results from satellite data assimilation of AMSU data.
Assimilating VOD can improve NWP (shown by Pete Weston at ECMWF).
This may call to greater attention to Dynamid Vegetation modelling (also in NWP context)?
Irrigation might be a connected modelling need?
NCMRWF LDAS make use of ASCAT/screenlevel and India insitu network (Agro-AWS) for soil moisture and soil temperature very useful for verification. Model variability inferior to observations variability.