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Development of a Global In-Situ Soil Moisture Network

Development of a Global In-Situ Soil Moisture Network. P.J. van Oevelen T.J. Jackson And many others!!. Rationale. No current global network Soil Moisture regarded as (emerging by GCOS) key variable Temporal change is more important than spatial representation Data Assimilation

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Development of a Global In-Situ Soil Moisture Network

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  1. Development of a Global In-Situ Soil Moisture Network P.J. van Oevelen T.J. Jackson And many others!! SMOS Workshop May 15-17 2006 Copenhagen, DK

  2. Rationale • No current global network • Soil Moisture regarded as (emerging by GCOS) key variable • Temporal change is more important than spatial representation • Data Assimilation • Earth Observation Validation/calibration • EO does not give soil moisture profile information SMOS Workshop May 15-17 2006 Copenhagen, DK

  3. Measurement Protocol • Uniformity • Representative • Consistency • Cross-Calibration/Validation • Relationship with gravimetric soil moisture / standard of reference? • Careful automation • Quality Assurance • Density/depth/number of sensors • Enable unified instructions on installation and measurement procedure • Discontinuity in series easier to take into account • Full range of possible soil moisture values • Important because time series are of essence • (limited number of stations) SMOS Workshop May 15-17 2006 Copenhagen, DK

  4. Operational • Continuity • Timely delivery –NRT? • Automation • Linked to Operation Forecast Centres (World Weather Watch) SMOS Workshop May 15-17 2006 Copenhagen, DK

  5. Connected to Existing Networks • Flux networks (BSRN?) • WMO Synoptic Network/World Weather Watch • Build upon existing infrastructure • Strengthen/Improve existing networks/prevent decline SMOS Workshop May 15-17 2006 Copenhagen, DK

  6. Strong User Community • Involvement • Support • Interaction • Application Fields • Earth Observations • Weather Forecasting • Climate • Climate Modelling • Agriculture • Water Resources SMOS Workshop May 15-17 2006 Copenhagen, DK

  7. Links to Other Programs • WCRP - GEWEX & CEOP • GCOS • GEOSS • FAO • GTOS • AGRYHMET • UNEP • UNDP • Space Agencies • EU etc SMOS Workshop May 15-17 2006 Copenhagen, DK

  8. The Global Climate Observing System (GCOS) GTN-H Global Terrestrial Network - Hydrology Asked ISMWG to act as Custodian for soil moisture network The Latest Version of the GCOS IP: • Recognizes Soil Moisture as an Emerging Climate Variable • Commits to a Global Network of in situ Soil Moisture Measurements • Commits to Developing a Quasi-Operational Soil Moisture Data Product SMOS Workshop May 15-17 2006 Copenhagen, DK

  9. Global In-Situ Soil Moisture Network SMOS Workshop May 15-17 2006 Copenhagen, DK

  10. ISMWG Workshop ‘06 March, 28 – 29, 2006 at ESA-ESTEC ~35 Participants SMOS Workshop May 15-17 2006 Copenhagen, DK

  11. ISMWG Workshop ‘06 • Objectives • Address aforementioned points • Current State of Affairs • Current Network Activities • Planned Activities • Historical Data • Recommendations for Protocol • Database development, management and hosting • Development of Roadmap • Formation of Task Group SMOS Workshop May 15-17 2006 Copenhagen, DK

  12. Outcome • Measurement Protocol: • Cross-Validation (site specific, temp, soil texture & bulkdensity • Relationship with gravimetric sm • Density/Depth of sensors • Units of representation • Network Design • Density of network • Linkage of networks • Metadata SMOS Workshop May 15-17 2006 Copenhagen, DK

  13. What is next? • Next meeting Spring, 2007 in Asia • General: • Sustain coordination ISMWG and formalise structure • Broaden participation • Embedding • 2006: • Publish workshop report (due) • Set-up web site • White paper • Data hosting • 2007: • Venue for meeting • Data hosting SMOS Workshop May 15-17 2006 Copenhagen, DK

  14. Thank you for your attention Peter.vanOevelen@esa.int SMOS Workshop May 15-17 2006 Copenhagen, DK

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