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Tìm kiếm theo: Chủ đề Radiative transfer model

Duyệt theo: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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Kết quả tìm kiếm từ 1 đến 2 trong 2 kết quả
  • BB

  • A Dielectric Mixing Model Accounting for Soil Organic Matter

    • Tác giả: Park, C‐H.;  Người hướng dẫn: -;  Người tham gia: Montzka, C.; Jagdhuber, T.; Jonard, F.; De Lannoy , G.; Hong, J.; Jackson, T.J.; Wulfmeyer, V. (2019)

  • This would lead to uncertainties in the estimation of higher level products, such as soil moisture retrievals from portable soil moisture sensors (e.g., time‐domain reflectometers) or passive microwave sensors onboard the Soil Moisture Active Passive (SMAP), Soil Moisture and Ocean Salinity (SMOS), and Advanced Microwave Scanning Radiometer (AMSR2) satellites. We incorporated OM into a dielectric mixing model by adjusting the wilting point and porosity according to the OM content, i.e., the effective soil dielectric constant decreases with higher OM due to a decrease in the fraction of free water and an increase in bound water. With the proposed soil parameters in the dielectric mixin...
  • BB

  • Characterization of a Highly Biodiverse Floodplain Meadow Using Hyperspectral Remote Sensing within a Plant Functional Trait Framework

    • Tác giả: Punalekar, Suvarna;  Người hướng dẫn: -;  Người tham gia: - (2016)

  • We assessed the potential for using optical functional types as effective markers to monitor changes in vegetation in floodplain meadows associated with changes in their local environment. Floodplain meadows are challenging ecosystems for monitoring and conservation because of their highly biodiverse nature. Our aim was to understand and explain spectral differences among key members of floodplain meadows and also characterize differences with respect to functional traits. The study was conducted on a typical floodplain meadow in UK (MG4-type, mesotrophic grassland type 4, according to British National Vegetation Classification). We compared two approaches to characterize floodplain c...