ascii_data: ASCII format line data, other ASCII data databases_geosoft: Geosoft format database of final line data, other Geosoft format databases documents: Project and field reports, survey background information, gridded data explanations, other documentation grids_ermapper: Geographically registered gridded data, ER Mapper ERS format grids_geosoft: Geosoft-format binary grids, these grids can be viewed in ESRI ArcMap using a free plugin from Geosoft images_registered: GeoTiff format images of all gridded data kmz: kml language kmz archive files of several project data types including resistivity model depth slices maps_pdf_format: Printable maps in pdf format maps_prn_format: Printable maps in HPGL/2 printer file format with extension .prn photos_flightpath: Survey flight path downward facing photos with GPS location in exif data resistivity_models: ACSII CSV format resistivity models in project coordinates with data field guides, figures and supporting documentation in ASCII text, PDF, KML, and/or other formats vector_data: Line path, data contours, and survey boundary in ESRI shapefile (SHP) format video_flightpath: Survey flight path downward-facing video
Graham, G.R.C., Emond, A.M., Daanen, R.P., Minsley, B.J., and CGG, 2018, Airborne electromagnetic and magnetic survey, Yukon Crossing to Fox profile, interior Alaska: Geophysical Report GPR 2016-3, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest .00000001
Ordinates (y-coordinates) are specified to the nearest .00000001
Planar coordinates are specified in Meters
The horizontal datum used is World Geodetic System of 1984.
The ellipsoid used is WGS 84.
The semi-major axis of the ellipsoid used is 6378137.
The flattening of the ellipsoid used is 1/298.257223563000025.
The Goldstream Valley Watershed project is funded by the National Science Foundation, Office of Polar Programs, Arctic System Science Program, award #1500931.
907-451-5020 (voice)
dggsgis@alaska.gov
These geophysical data are part of the University of Alaska Fairbanks, Institute of Northern Engineering, Water and Environmental Research Center Goldstream Valley Watershed project, which aims to define processes within the hydrology-permafrost-methane system at the lal less than :e to watershed scale across the seasonal to millennia! time scales. Goldstre-am Valley and surrounding areas of Interior Alaska offer a convenient and data-rich study area for landscapes with discontinuous permafrost and thaw lakes in the sub-arctic region.
Akima, H., 1970, A new method of interpolation and smooth curve fitting based on local procedures: null v. 7, no. 4, Association for Computing Machinery, New York, NY, USA.Online Links:
- null
Data sources used in this process:
Ball, L.B., Smith, B.D., Minsley, B.J., Abraham, J.D., Voss, C.I., Astley, B.N., Deszcz-Pan, Maria, and Cannia, J.C., 2014, Airborne electromagnetic and magnetic geophysical survey data of the Yukon Flats and Fort Wainwright areas, central Alaska, June 2010: Open-File Report OF 2011-1304, U.S. Geological Survey, United States.Online Links:
Emond, A.M., Daanen, R.P., Graham, G.R.C., Walter Anthony, Katey, Liljedahl, A.K., Minsley, B.J., Barnes, D.L., Romanovsky, V.E., and Services, CGG Canada Ltd., 2018, Airborne electromagnetic and magnetic survey, Goldstream Creek watershed, interior Alaska: Geophysical Report GPR 2016-5, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Emond, A.M., Little, L.M., Graham, G.R.C., Minsley, B.J., and CGG, 2018, Airborne electromagnetic and magnetic survey, Yukon Crossing, interior Alaska: Geophysical Report GPR 2016-4, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Emond, A.M., Minsley, B.J., Daanen, R.P., Graham, G.R.C., and CGG, 2018, Airborne electromagnetic and magnetic survey, Western Yukon Flats, interior Alaska: Geophysical Report GPR 2016-2, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
Geophysical data were acquired according to contractor, contract, and request-for-proposals specifications. For additional detail about survey parameters, see the accompanying project report available in the documents directory of this data distribution package.
These data are positioned with post-processed differential GPS.
These data are positioned with post-processed differential GPS.
This data set includes files that contain processed aeromagnetic measurements, electromagnetic measurements, altimetry measurements, and locational data for the entire survey area.
Data originate from one company using the same contract specifications for all data. The originating coordinate system was retained for all publication products.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
- Use_Constraints:
- Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
907-451-5020 (voice)
907-451-5050 (FAX)
dggspubs@alaska.gov
GPR 2016-3
The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity, whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requestor or anyone else exceed the fee paid for the electronic service or product.
DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.
| Data format: | DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/29684> |
907-451-5020 (voice)