1 / 12

Remote Sensing of Soil Properties @ National and Regional Scales

Remote Sensing of Soil Properties @ National and Regional Scales. Water for a Healthy Country. Alan Marks CSIRO Land and Water Monday 22 Sept., 2008. Modellers’ Wish List …. Spatially-varying maps of: Ksat Wilting point and field capacity SMC Soil Porosity Soil Layer Depth

ward
Download Presentation

Remote Sensing of Soil Properties @ National and Regional Scales

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Remote Sensing of Soil Properties@ National and Regional Scales Water for a Healthy Country Alan Marks CSIRO Land and Water Monday 22 Sept., 2008

  2. Modellers’ Wish List ….. • Spatially-varying maps of: • Ksat • Wilting point and field capacity SMC • Soil Porosity • Soil Layer Depth • Soil Bulk Density • % Clay, % Sand Insert presentation title

  3. Modelled LST for field capacity SMC NOAA-18 AVHRR LST 2005-10-02 Problems associated with polygon soil properties LST(K) Insert presentation title

  4. 10 Sandy soil 1 Sandy-loam soil 0.50 Clay-loam soil 0.34 Unknown, set to loam 0.05 Clay or silty-clay soil Tree Shrub Grass Water body 7.0 3.5 0.0 Soil texture classification Soil Properties Hydrological parameters Saturation hydraulic conductivity, Min/max soil moisture content, … Composition porosity, %clay & % sand, … Physical properties layer depth, … Land cover classification Vegetation Properties Physical parameters canopy height, leaf width, … Micrometeorological parameters reference height, zero plane displacement, roughness length, … Physiological parameters maximum stomatal conductance, fraction root biomass, … LAI Insert presentation title

  5. Current Approach • Active/Passive microwave, dry-down curve analysis • MTSAT thermal inertia and dry-down curves • Optical Remote Sensing for clay/sand mapping • Airborne Gamma-Ray Spectrometry (Radiometrics) • Cal/Val. NAFE, PGNA …… Insert presentation title

  6. Collaboration with Mario Ferri, Landgate eeeeeeeeeeeeeeeeeeeweek 1eeeeeeeeeeeeeeeeweek 2eeeeeeeeeeeeeeeeweek 3eeeeeeeeeeeeeweek 4e222222 Insert presentation title

  7. Decay Curve Values Insert presentation title

  8. MTSAT – Thermal Inertia – Mario Ferri • Monitoring soil moisture at 4km spatial resolution or better • Based on Apparent Thermal Inertia (ATI): based on logic that water bodies have higher thermal inertia than dry soils • Interested in looking at dry-down curve approach with this data Insert presentation title

  9. Soil Moisture Saturation Index (MTSAT) Insert presentation title

  10. Optical Remote Sensing – Clay/Sand Cudahy/Hewson CSIRO Insert presentation title

  11. Radiometrics & DEM Analysis Radiometric image of NSW with ASRIS soil polygons Insert presentation title

  12. Calibration/Validation ... Scaling • Cal/Val is a necessity for these products • Possible data fusion of higher resolution data and attributes • Ground truthing and scaling • NAFE/OzNet data • From point to transect - PGNA Insert presentation title

More Related