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Andrew Western writes to the sowacs list: ===8<============== Dear Colleagues, While sowacs emails usually concern ground-based measurements, I thought some members may have in interest in remotely sensed soil moisture data, if so read on. I am currently part of a team assessing the potential for a P band SAR satellite mission aiming to measure forest biomass and soil moisture for ESA. Due to the characteristics of SAR and also the likely priority given to forest biomass, there are some limitations on the resolution, repeat time, measurement depth and accuracy characteristics of the proposed data set from a soil moisture perspective. The key characteristics are given below for two possible data sets. We wish to explore what the range of potential scientific applications might be of the data from a soil moisture and/or land surface modelling perspective. To that end I am seeking comments on what you see as the applications and value of the proposed data from both a research and an operational perspective. In particular it would be good to get comments on your view as to whether there are some key advantages compared with current and proposed soil moisture missions (e.g. passive C and L band) or if the data would essentially represent a duplication. If people have any views on the accuracy requirements for various applications of remotely sensed moisture, I'd also like to hear them. Please pass this request on to any person with an interest in using remotely sensed soil moisture. All replies should be directed to a.western@civenv.unimelb.edu.au Thanks for your time. Andrew Western Data set 1. Duration: 3 years Pixel size: 250m Swath width: 80km Repeat time: 50 days Measurement depth: 10cm Accuracy: 0.04 m3/m3 rms Data set 2 Duration: 3 months Pixel size: 250m Swath width: 80km Repeat time: 3 days Measurement depth: 10cm Accuracy: 0.04m3/m3 rms Data set 2 could possibly be collected at the start of a mission that would later concentrate on biomass (i.e. with data set 1 type specifications). ------------------------------------------------------------------------------ Dr Andrew Western Senior Research Fellow Cooperative Research Centre for Catchment Hydrology and Centre for Environmental Applied Hydrology Department of Civil and Environmental Engineering The University of Melbourne Victoria 3010 Australia Ph +61 3 8344 7305 Fax +61 3 8344 6215 Mobile 0408 577 855 email: a.western@unimelb.edu.au, a.western@civenv.unimelb.edu. www: http://www.civenv.unimelb.edu.au/~western ------------------------------------------------------------------------------- ===8<============== NOTE: To get off this list, send an email to list@sowacs.com with the subject line: unsubscribe_sowacs For full instructions see this page: <http://www.sowacs.com/subscribe/index.html>