6533b85afe1ef96bd12b9298
RESEARCH PRODUCT
Cloud screening and multitemporal unmixing of MERIS FR data
Luis Gómez-chovaR. Zurita-millaG. Camps-vallsL. GuanterJ. CleversJ. CalpeM. E. SchaepmanJ. Morenosubject
ComputingMilieux_GENERALMERISLaboratory of Geo-information Science and Remote SensingCloud screeningMultispectral images550 - Earth sciencesLaboratorium voor Geo-informatiekunde en Remote SensingSub-pixel classificationPE&RCAstrophysics::Galaxy AstrophysicsSpectral unmixingdescription
The operational use of MERIS images can be hampered by the presence of clouds. This work presents a cloud screening algorithm that takes advantage of the high spectral and radiometric resolutions of MERIS and the specific location of some of its bands to increase the cloud detection accuracy. Moreover, the proposed algorithm provides a per-pixel probabilistic map of cloud abundance rather than a binary cloud presence flag. In order to test the proposed algorithm we propose a cloud screening validation method based on temporal series. In addition, we evaluate the impact of the cloud screening in a multitemporal unmixing application, where a temporal series of MERIS FR images acquired over The Netherlands is used to derive sub-pixel land cover composition by means of linear unmixing techniques.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-01-01 |