C02 - Coastal alluvial fans (geodata)

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Title:Main Title: C02 - Coastal alluvial fans (geodata)
Description:Abstract: This shapefile contains the polygons of 123 coastal alluvial fans (CAF) between ~20.5°S and 25.5°S along the coast of the Atacama Desert. They were used for geomorphometric analyses by Walk et al. (in press). The CAF were mapped based on satellite imagery (Vivid-Chile, GEO1 by DigitalGlobe and Sentinel-2 satellite imagery) and the TanDEM-X WorldDEM™. Criteria for delimiting the CAF were (i) terrain steps and surface landforms, (ii) sediment colours, and (iii) channel courses (if CAF are confined by neighbouring fans). Only CAF for which the catchment area (watersheds) and streams could be delinieated in an adequate quality based on the TanDEM-X WorldDEM™ (i.a. catchment area >1 km²) were used for analysis and are stored in this file (cf. geodataset "C02 - CAF watersheds and streams (geodata)"). See Walk et al. (in press) for details. Walk, J., Stauch, G., Reyers, M., Vásquez, P., Sepúlveda, F.A., Bartz, M., Hoffmeister, D., Brückner, H., Lehmkuhl, F., in press. Gradients in climate, geology, and topography affecting coastal alluvial fan morphodynamics in hyperarid regions – the Atacama perspective. Global and Planetary Change, 102994. https://doi.org/10.1016/j.gloplacha.2019.102994
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:2019
Topic
CRC1211 Topic:Surface
Related Subproject:C2
Subjects:Keywords: Geomorphology, Remote Sensing, GIS, Landscape Evolution, Arid Zone
Geogr. Information Topic:Environment
File Details
Filename:CAF_C02.zip
Data Type:Dataset - Dataset
Size:1 Datasets
File Size:258 KB
Date:Updated: 02.04.2019
Mime Type:application/zip
Data Format:ESRI Shapefile (10.4.1)
Language:English
Status:Completed
Constraints
Download Permission:Only Project Members
General Access and Use Conditions:According to the CRC1211DB data policy agreement.
Access Limitations:According to the CRC1211DB data policy agreement.
Licence:[CRC1211DB] Data policy agreement
Geographic
Specific Information - Data
Temporal Extent:12.12.2018, 00:00:00 - 23:59:00
Subtype:Natural Science Data
Metadata Details
Metadata Creator:Janek Walk
Metadata Created:14.11.2019
Metadata Last Updated:14.11.2019
Subproject:C2
Funding Phase:1
Metadata Language:English
Metadata Version:V50
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Dataset Downloads:3
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