Emond, A.M.
Daanen, R.P.
Graham, G.R.C.
Anthony, K.W.
Liljedahl, A.K.
Minsley, B.J.
Barnes, D.L.
Romanovsky, V.E.
CGG Canada Services Ltd.
2018
Airborne electromagnetic and magnetic survey, Goldstream Creek watershed, interior Alaska
digital data
Geophysical Report
GPR 2016-5
Fairbanks, Alaska, United States
Alaska Division of Geological & Geophysical Surveys
14 p.
https://doi.org/10.14509/29681
The Goldstream geophysical survey dataset provides airborne electromagnetic and magnetic data and resistivity models from a 258-square-km portion of the Goldstream Creek watershed, interior Alaska. The survey was flown from March 6th to March 17th, 2016, by CGG Canada Ltd. using their RESOLVE airborne geophysical system. Survey line spacing was either 100 meters (m) or 200 m; additional custom lines were collected over areas of scientific interest. The data were measured from 30 m above the ground surface using a helicopter-towed sensor platform ('bird') on a 30-m long line. The geophysical survey provides a snapshot of subsurface electromagnetic and magnetic variability throughout the study area. The data and resistivity modeling facilitates interpretation of surface and subsurface features and processes within Goldstream Valley and surrounding areas of interior Alaska. The Goldstream Valley Watershed project is funded by the National Science Foundation, Office of Polar Programs, Arctic System Science Program, award #1500931. Users can access the originating data and additional project metadata from the DGGS website: http://doi.org/10.14509/29681.
The UAF and DGGS Goldstream Valley Watershed project aims to define processes within the hydrology-permafrost-methane system at the lake to watershed scale, and across seasonal to millennial time scales. Airborne-geophysical datasets were collected to facilitate understanding of surface and subsurface features and processes within Goldstream Valley and surrounding areas of interior Alaska. This sub-arctic region's hydrology-permafrost-methane system contains discontinuous permafrost and thaw lakes and offers a conveniently located and data-rich study area.
>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
>outreach_data: Data for the general public that requires no specialized software to view. Intended for educational use. Includes resistivity models
>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 form
>vector_data: Line path, data contours, and survey boundary in ESRI shape file (SHP) format
>video_flightpath: Survey flight path downward facing video
2016
ground condition
None planned
-148.003945
-147.363899
65.048766
64.840942
ISO 19115 Topic Category
geoscientificInformation
Alaska Division of Geological & Geophysical Surveys
Apparent Resistivity Data
Apparent Resistivity Map
Apparent Resistivity Survey
Derivative
Electromagnetic Anomalies
Electromagnetic Data
Electromagnetic Survey
Engineering
Engineering Geology
Environmental
First Vertical Derivative
Geologic
Geologic Hazards
Geological Process
Geology
Geophysical Map
Geophysical Survey
Geophysics
Geophysics Search Tag
Geotechnical
Hydrology
Interpretation
Magnetics
Modeling
Periglacial Slope Failure
Permafrost
Permafrost and Periglacial
Remote Sensing
Resistivity
Resistivity Survey
Subsurface
Water
Alaska Division of Geological & Geophysical Surveys
Ester
Fairbanks
Fox
Goldstream
Goldstream Creek
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).
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.
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
mailing and physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
The Goldstream Valley Watershed project is funded by the National Science Foundation, Office of Polar Programs, Arctic System Science Program, award #1500931.
Ball, L.B.
Smith, B.D.
Minsley, B.J.
Abraham, J.D.
Voss, C.I.
Astley, B.N.
Deszcz-Pan, Maria
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
United States
U.S. Geological Survey
21 p
http://dggs.alaska.gov/pubs/id/29132
Graham, G.C.
Emond, A.M.
Daanen, R.P.
Minsley, B.J.
CGG
2016
Airborne electromagnetic and magnetic survey, Yukon Crossing to Fox profile, interior Alaska
Geophysical Report
GPR 2016-3
Fairbanks, Alaska, United States
Alaska Division of Geological & Geophysical Surveys
1 DVD
http://doi.org/10.14509/29684
Emond, A.M.
Little, L.M.
Graham, G.C.
Minsley, B.J.
CGG
2018
Airborne electromagnetic and magnetic survey, Yukon Crossing, interior Alaska
Geophysical Report
GPR 2016-4
Fairbanks, Alaska, United States
Alaska Division of Geological & Geophysical Surveys
http://doi.org/10.14509/29682
Emond, A.M.
Minsley, B.J.
Daanen, R.P.
Graham, G.C.
CGG
2018
Airborne electromagnetic and magnetic survey, Western Yukon Flats, interior Alaska
Geophysical Report
GPR 2016-2
Fairbanks, Alaska, United States
Alaska Division of Geological & Geophysical Surveys
1 DVD
http://doi.org/10.14509/29683
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.
Data originate from one company using the same contract specifications for all data. The originating coordinate system was retained for all publication products.
This data set includes files that contain processed aeromagnetic measurements, electromagnetic measurements, altimetry measurements, and locational data for the entire survey area.
These data are positioned with post-processed differential GPS.
These data are positioned with post-processed differential GPS.
Akima, H.
1970
A new method of interpolation and smooth curve fitting based on local procedures
null
v. 7, no. 4
New York, NY, USA
Association for Computing Machinery
null
paper
1970
publication date
Akima, H., 1970
Data collection, processing, and delivery
Data collection, processing, and delivery - The supporting documents in digital data package "documents" provides detailed process steps.
Akima, H., 1970
2016
Resistivity modeling - Resistivity models were derived from the recorded electromagnetic data through a process called inversion. Inversion programs create a resistivity model that has a data signature nearly the same as the recorded data. When this occurs the model is said to "fit" the data. This process is non-unique, meaning that many different resistivity models could create similar data. The readme file in digital data package "resistivity_models" provides inversion-specific information.
2016
Boundary polygon - The boundary polygon was generated by loading the final line data in Geosoft Oasis montaj v8.5.1. The final magnetic data was gridded using the Minimum Curvature option with the following settings: grid cell size = 1/5 of line spacing, blanking distance = double the line spacing, cells to extend beyond data = 0. The polygon file was created using Grid Outline tool with edge resolution = 1. The polygon file was exported to ESRI shapefile.
2017
Resistivity Depth Slices Grids, Images, and KMZ - Resistivity models were gridded at specific depths below surface using Geosoft Oaisis Montaj v9 to create Geosoft format grids. These depth slices were displayed with the same fixed color-scale by using a Geosoft *.zon file and exported to fixed color RGB GeoTiff images using Geosoft Oaisis Montaj v9. The resulting Geotiff images were imported into ArcMap v10. Using the "map to kml" tool in ArcMap v10 a keyhole markup language archive KMZ file was create making a GroundOverlay of each depth slice grid image. The KMZ was edited assigning a TimeSpan to each image where the 4 digit TimeSpan begin and end encompasses the depth below ground surface of the image. A resistivity colorbar was added to the KMZ as ScreenOverlay.
2018
Universal Transverse Mercator
6
0.999600
-147
0
500000.000000
0
coordinate pair
.00000001
.00000001
Meters
World Geodetic System of 1984
WGS 84
6378137
298.257223563000025
ascii_data
ASCII format line data, other ASCII data
CGG Canada Services Ltd.
ascii_data
databases_geosoft
Geosoft format database of final line data, other Geosoft format databases
CGG Canada Services Ltd.
databases_geosoft
documents
Project and field reports, survey background information, gridded data explanations, other documentation
CGG Canada Services Ltd.
documents
grids_ermapper
Geographically registered gridded data, ER Mapper ERS format
Alaska Division of Geological & Geophysical Surveys (DGGS)
grids_ermapper
grids_geosoft
Geosoft-format binary grids, these grids can be viewed in ESRI ArcMap using a free plugin from Geosoft
Alaska Division of Geological & Geophysical Surveys (DGGS)
grids_geosoft
images_registered
GeoTiff format images of all gridded data
Alaska Division of Geological & Geophysical Surveys (DGGS)
images_registered
kmz
kml language kmz archive files of several project data types including resistivity model depth slices
Alaska Division of Geological & Geophysical Surveys (DGGS)
kmz
maps_pdf_format
Printable maps in pdf format
CGG Canada Services Ltd.
maps_pdf_format
maps_prn_format
Printable maps in HPGL/2 printer file format with extension .prn
CGG Canada Services Ltd.
maps_prn_format
outreach_data
Data for the general public that requires no specialized software to view. Intended for educational use. Includes resistivity models
Alaska Division of Geological & Geophysical Surveys (DGGS)
outreach_data
photos_flightpath
Survey flight path downward facing photos with GPS location in exif data
Alaska Division of Geological & Geophysical Surveys (DGGS)
photos_flightpath
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
Alaska Division of Geological & Geophysical Surveys (DGGS)
resistivity_models
vector_data
Line path, data contours, and survey boundary in ESRI shape file (SHP) format
Alaska Division of Geological & Geophysical Surveys (DGGS), Fugro Airborne Surveys Corp. and Stevens Exploration Management Corp.
vector_data
video_flightpath
Survey flight path downward facing video
CGG Canada Services Ltd.
video_flightpath
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
mailing and physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
GPR 2016-5
The State of Alaska makes no expressed 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.
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.
Contact DGGS for current pricing
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
https://doi.org/10.14509/29681
Free download
20201215
Alaska Division of Geological & Geophysical Surveys
Simone Montayne
Metadata Manager
mailing and physical
3354 College Road
Fairbanks
AK
99709-3707
USA
(907)451-5020
(907)451-5050
dggspubs@alaska.gov
8 am to 4:30 pm, Monday through Friday, except State holidays
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys.
https://dggs.alaska.gov/metadata/dggs.ext
dggs metadata extensions