Articles | Volume 12, issue 1
Earth Syst. Sci. Data, 12, 539–553, 2020
https://doi.org/10.5194/essd-12-539-2020
Earth Syst. Sci. Data, 12, 539–553, 2020
https://doi.org/10.5194/essd-12-539-2020

Data description paper 05 Mar 2020

Data description paper | 05 Mar 2020

Geometric accuracy assessment of coarse-resolution satellite datasets: a study based on AVHRR GAC data at the sub-pixel level

Xiaodan Wu et al.

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Latest update: 01 Dec 2021
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Short summary
Based on the idea of the co-registration method, this study proposes a method named correlation-based patch matching method (CPMM), which is capable of quantifying the geometric accuracy of coarse-resolution satellite data. The assessment is conducted at the sub-pixel level and not affected by the mixed-pixel problem. It is not limited to a certain landmark such as a lake or sea shoreline and thus enables a more comprehensive assessment.