Geomorphic mapping and permafrost occurrence on the Koyukuk River floodplain near Huslia, Alaska

• Main Authors: Madison Douglas, Rain Blankenship, Austin Chadwick, Kieran Dunne, Woodward Fischer, Emily Geyman, Yutian Ke, Preston Kemeny, Gen Li, John Magyar, Edda Mutter, Justin Nghiem, Anastasia Piliouras, Jocelyn Reahl, Joel Rowland, Jon Schwenk, Emily Seelen, M. Isabel Smith, A. Joshua West, Michael Lamb
• Format: Dataset
• Language: unknown
• Published: ESS-DIVE: Deep Insight for Earth Science Data 2023
• Subjects: EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERMAFROST; EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL LANDFORMS > FLOOD PLAIN; EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES > FLUVIAL LANDFORMS > MEANDER; EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND; EARTH SCIENCE > LAND SURFACE > GEOMORPHIC LANDFORMS/PROCESSES; Huslia; Ice; permafrost; Alaska
• Online Access: https://search.dataone.org/view/ess-dive-e6d995578888820-20231030T214027505

Permafrost occurrence measured in-situ and geomorphic maps drawn by hand using high-resolution satellite imagery for the Koyukuk River floodplain near Huslia, Alaska. The dataset was collected to characterize permafrost extent and rates of formation and degradation due to river processes and climate change. Permafrost occurrence and thickness of the active layer was measured using a 1 or 2 m long permafrost probe or through direct observation (coring, digging trench, exposed ice). Measurements were from June 27 - July 8, 2018 and September 26 - October 1, 2022 and are saved as a csv file. Geomorphic maps delineate floodplain landforms, the relative age of floodplain deposits, and prior paths of the river produced by connecting oxbow lakes. Maps are saved as georeferenced shapefiles that can be imported into QGIS or ArcGIS software.