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Application of the Radon transform to multi-angle measurements made by the research scanning polarimeter: a new approach to cloud tomography; Part III—accuracy and applicability
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DOI：10.3389/frsen.2026.1843303.png)
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Abstract
En 中文
In Part III of the series; we evaluate the accuracy and applicability of the tomographic algorithm introduced in Part I and applied to real measurements by the research scanning polarimeter in Part II. We focus on the core part of the algorithm; producing a nested family of cloud shapes corresponding to a range of brightness thresholds. This family is then used to derive a 2D field of cloud extinction coefficient. We relate the resolution of the multi-angle measurements to the spatial accuracy of the cloud shape retrievals and determine constraints on the cloud aspect ratios required for the applicability of the algorithm. The expressions for overpass length and time derived in this study allow for estimating how much the cloud can move or change during the measurement process. We estimate biases in cloud size and position retrievals caused by the cloud’s advection during the measurements. Our accuracy estimation techniques are applied to previously published examples of clouds; both simulated and real.
Keywords:
clouds
tomography
reflectance
airborne remote sensing
research scanning polarimeter
Radon transform
Journal
F
IF:
3.7
Papers:
560
Citations:
993
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Cited Papers