UAS-based surface gravelometry for different generations of the coastal alluvial fan Guanillos, Atacama Desert

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Title:Main Title: UAS-based surface gravelometry for different generations of the coastal alluvial fan Guanillos, Atacama Desert
Description:Abstract: This dataset contains grain sizes of bright surface clasts extracted digitally from very high resolution aerial imagery for the coastal alluvial fan Guanillos (GUA) in northern Chile (21.97°S, 70.17°W). The largest diameters (a-axes) of bright clasts were derived by global thresholding of RGB orthomosaics (OM) constructed based on surveys using an unmanned aerial system (UAS). Depending on the spatial resolution of the OMs, the minimal detectable grain size is 20 to 22 mm. Restricted to detailed areas of interest (AOI), the gravelometric data is attributed to the four alluvial fan surface generations, or morphostratigraphic units, Q1 to Q4. Results are stored in a .csv table.
Identifier:10.5880/CRC1211DB.39 (DOI)
Responsible Party
Creators:Janek Walk (Author), Melanie Bartz (Author), Georg Stauch (Author), Helmut Brückner (Author), Frank Lehmkuhl (Author)
Funding Reference:Deutsche Forschungsgemeinschaft (DFG): CRC 1211: Earth - Evolution at the Dry Limit
Publisher:CRC1211 Database (CRC1211DB)
Publication Year:2021
Topic
CRC1211 Topic:Surface
Related Subproject:C2
Subjects:Keywords: Ground-based remote sensing, Geomorphology, GIS
Geogr. Information Topic:Environment
File Details
Filename:GUA_gravel_UAS.zip
Data Type:Dataset - Data table
Size:1 Datasets
File Size:384 KB
Date:Created: 18.12.2020
Mime Type:application/zip
Data Format:CSV
Language:English
Status:Completed
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Constraints
Download Permission:Free
General Access and Use Conditions:According to the CRC1211DB data policy agreement. © Author(s) 2021. CC Attribution 4.0 license.
Access Limitations:According to the CRC1211DB data policy agreement. © Author(s) 2021. CC Attribution 4.0 license.
Licence:[Creative Commons] Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Geographic
Specific Information - Data
Temporal Extent:07.03.2018, 13:59:00 - 08.03.2018, 09:02:00
Subtype:Natural Science Data
Instruments:Unmanned aerial system [DJI Phantom 4 Advanced]
ArcGIS Desktop [10.6.1]
Metadata Details
Metadata Creator:Janek Walk
Metadata Created:27.04.2021
Metadata Last Updated:26.05.2021
Subproject:C2
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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Dataset Downloads:5
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