This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

Photogrammetric digital surface models and mosaiced orthoimagery for Barter Island, Alaska

Metadata Updated: November 10, 2020

In 2017, the National Oceanic & Atmospheric Administration (NOAA), National Geodetic Survey, Remote Sensing Division (RSD) performed extensive aerial collection of imagery along Alaska's northeastern coastline in support of NOAA's Coastal Mapping Program. Data collected under this initiative are typically used to improve maritime chart products, serve as a baseline for shoreline change monitoring, and update the national shoreline database. This report summarizes photogrammetric digital surface models (DSMs) and an orthomosaic derived from this image dataset using Structure from Motion (SfM) techniques for the Barter Island area. Aerial images used to derive products described in this report were collected on July 19, 2017. Ground control points (GCPs) and checkpoints used for vertical correction and validation of this data were collected with Global Navigation Satellite System (GNSS) surveys by the U.S. Geological Survey (USGS) on September 4, 2014, and September 18, 2016. This data collection is being released as a Raw Data File with an open end-user license and includes the following for the Barter Island area: (1) orthomosaic raster, (2) DSM raster, (3) smoothed DSM raster, and (4) DSM hillshade. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30456).

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

Downloads & Resources

Dates

Metadata Date June 5, 2020
Metadata Created Date November 10, 2020
Metadata Updated Date November 10, 2020
Reference Date(s) January 1, 2020 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Alaska Division of Geological and Geophysical Surveys

Additional Metadata

Resource Type Dataset
Metadata Date June 5, 2020
Metadata Created Date November 10, 2020
Metadata Updated Date November 10, 2020
Reference Date(s) January 1, 2020 (publication)
Responsible Party Alaska Division of Geological & Geophysical Surveys (Point of Contact)
Contact Email
Guid
Access Constraints 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., 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).
Bbox East Long -143.512518
Bbox North Lat 70.150798
Bbox South Lat 70.080458
Bbox West Long -143.759258
Coupled Resource
Frequency Of Update notPlanned
Licence 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.
Metadata Language eng; USA
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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