CORRELATION ESTIMATION BETWEEN CEREALS HEIGHT AND INSAR COHERENCE: A CASE STUDY OF THE LEBNA WATERSHED IN CAP-BON, TUNISIA
Barbouchi, Meriem ， Alaya, Itidel ， Abdelfattah, Riadh ， Mekki, Insaf ， Zitouna, Rim
2020-01-01 null null null(卷), null(期), (null页)
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The aim of this paper is to estimate the correlation between wheat height and the Interferometric SAR coherence. This study will serve as a validation test to our previous work [1]. In this paper, we are testing the robustness of the use of the InSAR coherence as a parameter for wheat and barley growth monitoring in a special context humid to semi-arid climate and intensive agriculture. For experimental validation, the height of wheat crops was determined through the different phenological stage. In the same period of field campaign, twelve sentinel-1 images were acquired over the Lebna watershed. From these images interferometric coherence pairs were extracted and compared to the height variation of wheat and barley. Results showed a high correlation between height and interferometric coherence for the sites where the vegetation is dense (r=0.9). But when the soil component is important the correlation is weak (r=0.5).
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