border: shapefile that provides a generalized outline of the geographic area described by this data release. bathymetry: location coordinates and bathymetric values
Wolken, G.J., Arendt, A.A., and Rich, J.L., 2015, Bathymetry of Valdez Glacier lake: Raw Data File RDF 2015-1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.Online Links:
This is a point data set.
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in decimal degrees.
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 1/298.257223563.
| Range of values | |
|---|---|
| Minimum: | 0.31 |
| Maximum: | 195.2 |
| Units: | meters |
Hydrolite or Garmin
| Range of values | |
|---|---|
| Minimum: | 61.1462221 |
| Maximum: | 61.1626417 |
| Units: | degrees |
| Range of values | |
|---|---|
| Minimum: | -146.1730422 |
| Maximum: | -146.1431954 |
| Units: | degrees |
All measurements were collected on 7/3/2012
The project described in this publication was part of a Valdez Glacier watershed flood hazards study, and was funded by the Climate and Cryosphere Hazards Program (www.dggs.alaska.gov/climatehazards) at the Alaska Division of Geological & Geophysical Surveys through a Capital Improvement Project award. We thank the City of Valdez and Fish Central, Valdez for logistical assistance during bathymetric data collection. We are grateful to Nicole Kinsman and James Weakland for help with data visualization, and to Patricia Gallagher for help with the sheet layout.
(907)451-5020 (voice)
dggsgis@alaska.gov
The Valdez Glacier lake bathymetry survey is part of a Valdez Glacier watershed flood hazards study.
Instruments were tested for accuracy in shallow water prior to data collection.
The horizontal accuracy error of the sensor position is less than 1.5 m.
Hydrolite-TM data have a reported depth accuracy error of less than 0.08 m (0.01 m/0.1 percent of depth). While Garmin does not publish depth accuracy statistics for the GPSmap 441s, we estimate a depth accuracy error of less than 4.5 m at depths below 50 m.
Not applicable
Not applicable
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
RDF 2015-1
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.
| Data format: | Shapefile |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/29255> |
(907)451-5020 (voice)