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

• Main Authors: Douglas, Madison, Blankenship, Rain, Chadwick, Austin, Dunne, Kieran, Fischer, Woodward, Geyman, Emily, Ke, Yutian, Kemeny, Preston, Li, Gen, Magyar, John, Mutter, Edda, Nghiem, Justin, Piliouras, Anastasia, Reahl, Jocelyn, Rowland, Joel, Schwenk, Jon, Seelen, Emily, Smith, M. Isabel, West, A. Joshua, Lamb, Michael
• Format: Dataset
• Language: English
• Published: Environmental System Science Data Infrastructure for a Virtual Ecosystem; Incorporating the Hydrological Controls on Carbon Cycling in Floodplain Ecosystems into Earth System Models (ESMs) 2023
• Subjects: 54 ENVIRONMENTAL SCIENCES; 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; Ice; permafrost; Alaska
• Online Access: https://dx.doi.org/10.15485/2204419; https://www.osti.gov/servlets/purl/2204419/

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. ...