The LDAS survey poll
and its tabular output
https://docs.google.com/spreadsheets/d/1ynO6D9aO82W7WYZndqZD0x2914brru3bq6qOOxZFTOs/edit?usp=sharing
A previous SRNWP survey on surface modelling and assimilation systems
http://www.umr-cnrm.fr/aladin/spip.php?rubrique42