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MoistureMap: Multi-Angle Retrieval Sandy Peischl PhD-candidate

This research explores the use of the MoistureMap multi-angle retrieval method to improve soil moisture estimation. By leveraging an inversion scheme based on the L-MEB model, the study investigates the impact of sensor look angles on ancillary data from SMOS records. This includes analyzing brightness temperature values across various incidence angles from 0° to 55° for both bare and vegetated soils. Insights from this research could lead to enhanced accuracy in soil moisture retrieval and more effective land surface modeling.

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MoistureMap: Multi-Angle Retrieval Sandy Peischl PhD-candidate

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  1. MoistureMap: Multi-Angle RetrievalSandy Peischl PhD-candidate Jeffrey Walker, Dongryeol Ryu, Christoph Rüdiger, Damian Barrett, Robert Gurney, Jetse Kalma, Yann Kerr, Ed Kim and John LeMarshall

  2. Tilt 32° Source: www.smos-bec.icm.csic.es Nadir MoistureMap: Multi-angle retrieval Soil Moisture Ocean Salinity Improve accuracy of soil moisture retrieval using inversion scheme of L-meb by investigation of look angle effects on ancillary data SMOS records brightness temperature values over incidence angles from 0° to 55° Earth

  3. < MoistureMap: Multi-angle retrieval Bare soil: Fresnel equation, where  = sensor look angle r = dielectric constant relative to free space h,v = polarization

  4. MoistureMap: Multi-angle retrieval Bare soil: Fresnel equation, where  = sensor look angle r = dielectric constant relative to free space h,v = polarization

  5. MoistureMap: Multi-angle retrieval Bare soil: Fresnel equation, where  = sensor look angle r = dielectric constant relative to free space h,v = polarization Source: Ulaby et al., 1986

  6. MoistureMap: Multi-angle retrieval Vegetated soil: where, is the transmissivity of the vegetation layer Tveg is the physical temperature of vegetation (K) Tsoilis the physical temperature of soil (K) ω is the single scattering albedo of the vegetation is the optical depth at nadir and published in Davenport et al., 2005 Tbveg+Tbsoil Tbveg Tbsoil

  7. MoistureMap: Multi-angle retrieval Vegetated soil: where, is the transmissivity of the vegetation layer Tveg is the physical temperature of vegetation (K) Tsoilis the physical temperature of soil (K) ω is the single scattering albedo of the vegetation is the optical depth at nadir and < L < L’ published in Davenport et al., 2005

  8. where, is the transmissivity of the vegetation layer Tveg is the physical temperature of vegetation (K) Tsoilis the physical temperature of soil (K) ω is the single scattering albedo of the vegetation is the optical depth at nadir and MoistureMap: Multi-angle retrieval Vegetated soil: published in Davenport et al., 2005 Tsoil= 298.15 K Tveg = 298.15 K Type = Grassland VWC = 2; b = 0.15

  9. MoistureMap: Multi-angle retrieval Vegetation Water Content Transmissivity Vegetation Temperature Single Scattering Albedo Vegetation Look Angle Brightness Temperature Soil Temperature Emissivity Soil Soil Water Content Soil Properties Roughness

  10. MoistureMap: Multi-angle retrieval Polarimetric L-Band Multibeam Radiometer • 2005 Tb-observations at six along-track view angles with 250 m resolution • 2006 Tb-observations at six along-track view angles with 500 m resolution

  11. application to SMOS data + verification using Murrumbidgee flights MoistureMap: Multi-angle retrieval Outlook understanding + modeling of incidence angle dependence on ancillary data improved retrieval of soil moisture and related key variables

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