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Aerial photo mosaic of the Tillamook and Trask Rivers, Tillamook basin, Oregon in 1939
Zusammenfassung
- Art der Freigabe
- ongoing release of a series of related datasets
- Datenlizenz
- Not Applicable
- Inhaltslizenz
- Creative Commons CCZero
- Bestätigung
- automatisiert zertifiziert
- Veröffentlichungsdatum
- 15 March 2013
- Änderungsdatum
- 17 November 2014
- Aktualisierungshäufigkeit
- notPlanned
- Herausgeber
- U.S. Geological Survey, Department of the Interior
- Identifier
- aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939
- Landing Page
- http://catalog.data.gov/dataset/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939
Community-Bestätigung
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Beschreibung
The Tillamook Bay subbasins and Nehalem River basins encompass 1,369 and 2,207 respective square kilometers of northwestern Oregon and drain to the Pacific Ocean. The Tillamook, Trask, Wilson, Kilchis, and Miami Rivers flow into Tillamook Bay near the towns of Tillamook and Garibaldi. The Wilson and Trask River basins cover the largest areas (500 and 451 square kilometers, respectively) whereas the Tillamook and Kilchis Rivers encompass similar sized areas (156 and 169 square kilometers, respectively) and the Miami River the smallest area (94 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey completed a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream gravel extraction along the the major alluvial portions of six river systems, including the lowermost 14.1 km of the Tillamook River, 16.3 km of the Trask River, 15.2 km of the Wilson River, 7.8 km of the Kilchis River, 11.6 km of the Miami River, and 31.4 km of the Nehalem River. To support these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Tillamook Bay sub-basins and Nehalem River basin from different time periods. GIS layers defining the wetted channel and bar features and channel centerline in the study area were developed for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically inundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel bars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 and 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the rectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.
Allgemeine Informationen
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Die Beschreibung der Daten befindet sich unter
http://catalog.data.gov/dataset/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939 Do you think this data is incorrect? Let us know
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Die Daten werden veröffentlicht von…
U.S. Geological Survey, Department of the Interior Do you think this data is incorrect? Let us know
Rechtliche Information
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Die Nutzungsbestimmungen finden sich unter
http://catalog.data.gov/dataset/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939 Do you think this data is incorrect? Let us know
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Under which licence can people outside the US reuse this data?
Creative Commons CCZero Do you think this data is incorrect? Let us know
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Es gibt
yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know
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Die Inhalte können im Rahmen der folgenden Lizenz weiterverwendet werden
Creative Commons CCZero Do you think this data is incorrect? Let us know
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Die Daten enthalten
keine personenbezogenen Daten Do you think this data is incorrect? Let us know
Praktische Hinweise
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Diese Daten ändern sich
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Die Daten werden
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Technische Hinweise
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Die Liste der Versionen findet sich unter
http://catalog.data.gov/api/rest/package/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939 Do you think this data is incorrect? Let us know
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Einen Ansprechpartner zu diesen Daten finden Sie unter
http://catalog.data.gov/dataset/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939 Do you think this data is incorrect? Let us know
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Wie sie Verbesserungen dieser Daten vorschlagen können erfahren Sie unter
http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/aerial-photo-mosaic-of-the-tillamook-and-trask-rivers-tillamook-basin-oregon-in-1939 Do you think this data is incorrect? Let us know