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Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun. Tides originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.
All digitization was conducted against 1:24,000 USGS Quads and 1:24,000 Digitial Ortho Quads and field site verification in 1997-20 The data integrety is determined from High (visual onsite) to Low (nonvisual) with the recorded Date and Personnel name. |
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Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun. Tides originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.
All digitization was conducted against 1:24,000 USGS Quads and 1:24,000 Digitial Ortho Quads and field site verification in 1997-20 The data integrety is determined from High (visual onsite) to Low (nonvisual) with the recorded Date and Personnel name. |
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G. Willnow, P. Lumley, R. Sounhein, |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:1 1 1 0;"><SPAN>This dataset was originally generated in (2000) from the Heads of Tide for Coastal Streams in Oregon study conducted by DSL in the late 1980's, and reviewed by G. Willnow. The digitization of the report’s tidal data was then transfered over onto 1:24,000 USGS Quads and 1:24,000 Digital Ortho Quads. These maps were then QA/QCed by the original authoritative DSL staff (Greg Willnow and Perry Lumley) that generated the original report. Finally, the maps were then taken out in the field and site verified (R. Sounhein and G. Willnow) during the Waterway Inventory Project of 1997-2000, using both paper and electronic (GPS units).</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Note: This product is for informational purposes, and may not be suitable for legal, engineering or survey purposes. This information or data is provided with the understanding the conclusions drawn from such information are the responsibility of the user. All updates to data need to be clearly documented via onsite visit, to include date and personnel that reported the Head of Tide event. Any and all questions should be addressed to the DSL GIS Coordinator, (503) 986-5270</SPAN></P></DIV></DIV></DIV> |
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BASEDAT.DBO.HeadTide_2017 |
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["tide","State of Oregon","Columbia","Necanicum","Nehalem","Tillamook","Netarts","Sand Lake","Nestucca","Salmon","Siletz","Yaquina","Alsea","Tenmile","Siuslaw","Siltcoos","Tahkenitch","Umpqua","Coos","Coquille","Rogue","Chetco","2000","2007"] |
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en-US |
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150000000 |
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