Ice-Jam Flooding of Lena River in the Municipal District of Yakutsk

• Main Authors: Efremova, Vilena, Danilov, Yuri, Gadal, Sébastien
• Other Authors: North-Eastern Federal University, Aix Marseille Université (AMU), Études des Structures, des Processus d’Adaptation et des Changements de l’Espace (ESPACE), Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Avignon Université (AU)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA), Polar Urban Centers PUR
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: HAL CCSD 2019
• Subjects: Ice-flooding; Lena River; Remote Sensing; MNDWI; Flooding cartography; Yakutsk; Russia; Arctic; Ледовый затор; половодье; река Лена; дистанционное зондирование; [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV]; [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation; [SDE.ES]Environmental Sciences/Environment and Society; [SHS.GEO]Humanities and Social Sciences/Geography; [SHS.STAT]Humanities and Social Sciences/Methods and statistics; Sakha; lena river; Republic of Sakha; Yakutia; Якутск
• Online Access: https://hal.science/hal-02471752; https://hal.science/hal-02471752/document; https://hal.science/hal-02471752/file/Efremova_Danilov_Gadal.pdf

International audience In the last years of the 20th century and the beginning of the 21st century, the number of flooding and ice-flooding impacting the populated areas of the Republic of Sakha (Yakutia) has significantly increased. This present research analyses the long-term hydrological data and the features of the ice drift on the average Lena for the period 1990 to 2016 with the Landsat 5 TM, Landsat 8 OLI and Sentinel 2 MSI remote sensing data. The best methodology for the recognition, extraction and mapping of the water flooding is based on the MNDWI water index. MNDWI water index was used to map the flood areas and limits from Tabaginsky cape to Kangalassky cape.