Results 71 to 80 of about 12,695 (270)
Cryptic Ice Wedge Networks in Holocene Peat, Yukon‐Kuskokwim Delta, Alaska
Permafrost and Periglacial Processes, EarlyView.ABSTRACT The Yukon‐Kuskokwim Delta (YKD), covering ~75,000 km2 of Alaska's discontinuous permafrost zone, has a historic (1902–2023) mean annual air temperature of ~−1°C and was previously thought to lack ice wedge networks. However, our recent investigations near Bethel, Alaska, revealed numerous near‐surface ice wedges.
Benjamin M. Jones +11 more
wiley +1 more source
Geoarchaeology and geomorphology of the Metaponto area, Ionian coastal belt, Italy
Journal of Maps, 2020 A 1:28,000-scale geoarchaeological map has been prepared for a large sector of the Ionian coastal belt of the Basilicata region, southern Italy, in order to investigate the relationships between the spatial distribution of archaeological sites of Greek ...
Dario Gioia +4 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.We studied a renowned local wind in Japan, “Kiyokawa‐dashi,” with a numerical model and high‐density observations at approximately 1‐km intervals. “Kiyokawa‐dashi” typically begins with intense winds descending onto a confined area leeward of a gorge at the initiation stage and expands over the entire plain at the mature stage.
Hiroyuki Kusaka +2 more
wiley +1 more source
River Research and Applications, EarlyView.ABSTRACT Streambank erosion is an important source of sediment to river systems but is difficult to quantify at watershed scales. In this study, high‐resolution Light Detection and Ranging (LiDAR) measurements collected from 2009 and 2020 were used to quantify the difference in land surface elevation that occurred along the fourth and fifth‐order ...
Calvin F. Wolter +3 more
wiley +1 more source
Testing Semi-Automated Landforms Extraction Using Field-Based Geomorphological Maps
GeosciencesThe semi-automated extraction of landforms using GIS analysis is one of the main topics in computer analyses. The use of digital elevation models (DEMs) in GIS applications makes the extraction and classification procedure of landforms easier and faster.
Salvatore Ivo Giano +2 more
doaj +1 more source
Weichselian–Holocene glacial history of the Sjuøyane archipelago, northern Svalbard
Boreas, EarlyView.To reconstruct the glacial history of Sjuøyane, we describe coastal sedimentary sections in Quaternary sediments and constrain their chronology by radiocarbon and optically stimulated luminescence ages. The sedimentary sections largely consist of shallow (glacio‐)marine and/or littoral sediments deposited during high relative sea levels.
Anders Schomacker +9 more
wiley +1 more source
Remote Sensing, 2019 Few studies have focused on the potential impacts of topography on regional crop simulation, which might constrain the development of crop models and lead to inaccurate estimations for food security.
Jing Zhang +3 more
doaj +1 more source
Boreas, EarlyView.Morphometric values of streamlined subglacial bedforms provide valuable information about the relative speed, direction, and maturity of past ice streams. This paper presents a new tool that utilizes a machine learning approach to automatically identify glacially derived streamlined features.
Ellianna Abrahams +3 more
wiley +1 more source