Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/B3AF6A8F-A85D-4E84-9700-2A2DF046E64B | - |
| Αναγνωριστικό | https://doi.org/10.1080/10106049.2016.1250826 | - |
| Αναγνωριστικό | https://www.tandfonline.com/doi/full/10.1080/10106049.2016.1250826 | - |
| Γλώσσα | en | - |
| Μέγεθος | 18 pages | en |
| Τίτλος | Assessing soil salinity using WorldView-2 multispectral images in Timpaki, Crete, Greece | en |
| Δημιουργός | Alexakis Dimitrios | en |
| Δημιουργός | Αλεξακης Δημητριος | el |
| Δημιουργός | Daliakopoulos Ioannis | en |
| Δημιουργός | Δαλιακοπουλος Ιωαννης | el |
| Δημιουργός | Panagea Ioanna | en |
| Δημιουργός | Παναγεα Ιωαννα | el |
| Δημιουργός | Tsanis Ioannis | en |
| Δημιουργός | Τσανης Ιωαννης | el |
| Εκδότης | Taylor & Francis | en |
| Περίληψη | Salinization is one of the major soil degradation threats occurring worldwide. This study evaluates the feasibility of operational surface soil salinity mapping based on state-of-the-art Earth Observation (EO) products captured by sensors on-board WorldView-2 (WV2) and Landsat 8 satellites. The proposed methods are tested in Timpaki, south-central Crete,Greece, where brackish water irrigation puts soil health at risk of soil salinization. In all cases, EO products are calibrated against soil samples collected from bare soil locations. Results indicate a moderate correlation of observed EC e values with the investigated remote sensing parameters. Regarding sensitivity to saline soil, the yellow band displays higher values. Comparison between methods used in the literature shows that those developed specifically for soil salinity, and especially index S5, perform better. The proposed ‘detection index’ and 3D PCA transformation methodology perform reasonably well in detecting areas with high EC e values and provide a simple and effective operational alternative for saline topsoil detection and mapping. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2019-09-18 | - |
| Ημερομηνία Δημοσίευσης | 2018 | - |
| Θεματική Κατηγορία | PCA | en |
| Θεματική Κατηγορία | Satellite remote sensing | en |
| Θεματική Κατηγορία | Soil salinity | en |
| Θεματική Κατηγορία | Vegetation and salinity indices | en |
| Θεματική Κατηγορία | WorldVIew-2 | en |
| Βιβλιογραφική Αναφορά | D.D. Alexakis, I.N. Daliakopoulos, I.S. Panagea and I.K. Tsanis, "Assessing soil salinity using WorldView-2 multispectral images in Timpaki, Crete, Greece," Geocarto Int., vol. 33, no. 4, pp. 321-338, Apr. 2018. doi: 10.1080/10106049.2016.1250826 | en |
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