Pléiades DEM-based morphometry of coastal alluvial fans in Chile's Atacama Desert - DEM quality assessment and first results from the Devil's Throat (Garganta del Diablo), southern Tarapacá region
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| Title: | Main Title: Pléiades DEM-based morphometry of coastal alluvial fans in Chile's Atacama Desert - DEM quality assessment and first results from the Devil's Throat (Garganta del Diablo), southern Tarapacá region |
| Description: | Abstract: Revealed by sedimentary records dating back to the late Jurassic (150 Ma) the Atacama Desert is the oldest desert known on earth. Within the scope of the CRC 1211 “Earth – Evolution at the dry limit“ the subproject C02 concentrates on transport and deposition under the long-lasting hyperarid conditions present in the Atacama Desert with a special focus on coastal alluvial fans. These sedimentary geo-archives mirror the past and present circumstances controlling their evolution; which are, besides the climatic influences, tectonic controls and sea level changes. Thus, remote sensing-based geomorphological analysis can contribute to the discovery of the processes involved in their development. The 1 m Pléiades DEM derived from stereopair imagery gives, if downscaled and filtered, a sufficient impression on the regional surface elevation and can be used successfully for the assessment of drainage basins and stream networks, but is unsuitable for further morphometric analysis. Probably, the Pléiades tri-stereo imagery products could provide a less erroneous DEM and, therefore, should be examined and compared. |
Responsible Party
| Creators: | Janek Walk (Author), Georg Stauch (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, Terrestrial Observation |
| Geogr. Information Topic: | Environment |
File Details
| Filename: | Poster_JuGeos_2017_Pleiades_CAF_morphometry_BOC_DINA3.pdf |
| Data Type: | Text - Text |
| File Size: | 3.6 MB |
| Date: | Created: 18.05.2017 |
| Mime Type: | application/pdf |
| Data Format: | |
| 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 |
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Specific Information - Presentation
| Presenter: | Janek Walk |
| Presentation Date: | 19th of May, 2017 |
| Presentation Type: | Poster |
| Event: | 11th International Young Geomorphologists' Meeting |
| Event Type: | Conference |
| Event Location: | Wartaweil |
| Event Duration: | 19th of May, 2017 - 21st of May, 2017 |
Metadata Details
| Metadata Creator: | Janek Walk |
| Metadata Created: | 04.11.2019 |
| Metadata Last Updated: | 04.11.2019 |
| Subproject: | C2 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 143 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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