Nadir videos taken during low-altitude transects of the Arctic Network of national park units and Selawik National Wildlife Refuge, Alaska, July 2013


Identification_Information:
Citation:
Citation_Information:
Originator: Marcot, B.G.,
Originator: M.T. Jorgenson,
Originator: A.R. DeGange
Publication_Date: 20140521
Title:
Nadir videos taken during low-altitude transects of the Arctic Network of national park units and Selawik National Wildlife Refuge, Alaska, July 2013
Geospatial_Data_Presentation_Form: video
Publication_Information:
Publication_Place: Anchorage, AK
Publisher: US Geological Survey, Alaska Science Center
Larger_Work_Citation:
Citation_Information:
Originator: Marcot, B.G.,
Originator: M.T. Jorgenson,
Originator: A.R. DeGange
Publication_Date: 20140521
Title:
Low-Altitude Photographic Transects of the Arctic Network of National Park Units and Selawik National Wildlife Refuge, Alaska, July 2013
Geospatial_Data_Presentation_Form: website
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details: USGS project website.
Online_Linkage: http://alaska.usgs.gov/portal/project.php?project_id=349
Description:
Abstract:
Nadir videos shot from a GoPro Hero3 Black Edition (focal length 2.77 mm) of the arctic landscape during low altitude transects at the rate of 60 frames per second. Transects were conducted from small aircraft over the National Park Service’s Bering Land Bridge National Preserve and the U.S. Fish and Wildlife Service’s Selawik National Wildlife Refuge in northwest Alaska.
Purpose:
Provide images of current conditions and prevalence of land cover types as a baseline for measuring future change, and to complement the existing grid-based sample photography of the region.
Supplemental_Information:
The individual frames of the GoPro videos were not geotagged. However, the specific scenes could be compared with the Drift camera’s static time-lapse photographs, which were taken simultaneously, thus identifying geotag locations from the Drift camera’s images. For more information, please refer to the publication, "Low-altitude photographic transects of the Arctic Network of national park units and Selawik National Wildlife Refuge, Alaska, July 2013", Marcot, B.G., et al.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20130716
Ending_Date: 20130717
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent:
The study area included five units of the National Park Service’s Arctic Network (Bering Land Bridge National Preserve, Cape Krusenstern National Monument, Gates of the Arctic National Park & Preserve, Kobuk Valley National Park, and Noatak National Preserve), the adjacent area of U.S. Fish and Wildlife Service’s Selawik National Wildlife Refuge, and a 10-km buffer around all of these administrative units, totaling 162,868 km2 in an area spanning roughly 500 km east to west and 300 km north to south. This is also the study area for the USGS’ Wildlife Potential Habitat Forecasting Framework Project (WildCast) that projects effects of climate change on future land cover and wildlife habitat (DeGange et al. 2013)
Bounding_Coordinates:
West_Bounding_Coordinate: -169.22000
East_Bounding_Coordinate: -149.05000
North_Bounding_Coordinate: 68.87000
South_Bounding_Coordinate: 64.78000
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Photogrammetry
Theme_Keyword: Arctic Network
Theme_Keyword: Low Altitude Air Photo
Theme_Keyword: Low Altitude Video
Theme_Keyword: Northwest Alaska
Theme_Keyword: Land Cover
Theme_Keyword: Ecotypes
Theme:
Theme_Keyword_Thesaurus: ISO 19115
Theme_Keyword: Biota
Theme_Keyword: Climatology
Theme_Keyword: Environment
Theme_Keyword: ImageryBaseMapsEarthCover
Theme_Keyword: GeoscientificInformation
Theme_Keyword: InlandWaters
Theme_Keyword: Oceans
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Alaska
Place_Keyword: Northwest Arctic
Place_Keyword: Bering Land Bridge National Preserve
Place_Keyword: Selawik National Wildlife Refuge
Access_Constraints: None
Use_Constraints:
It is requested that the authors, the USGS Alaska Science Center the National Park Service and the US Forest Service Pacific Northwest Research Station be cited for any subsequent publications referenced to this dataset. Please contact B.G. Marcot, US Forest Service with any questions. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. No warranty expressed or implied is made regarding the accuracy or utility of the data and information on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Inherent in any data set used to develop graphical representations are limitations of accuracy as determined by, among others, the source, scale and resolution of the data. This disclaimer applies both to individual use of the data and information, and aggregate use with other data and information.These data and any derived products are not legal documents and are not intended to be used as such. The information contained in these data may be dynamic and could change over time. The data are not better than the original sources from which they are derived. It is the responsibility of the data user to use the data appropriately and consistent with the limitations of geospatial data in general and these data in particular. It is strongly recommended that the data described or contained herein be acquired directly from the USGS and not indirectly through some other sources which may have changed the data in some way. Neither the originators of this dataset or the USGS shall be held liable for improper or incorrect use of the data described and/or contained herein.
Browse_Graphic:
Browse_Graphic_File_Name: @trip Bering 130716 GoPro camera, w gaps & movies.jpg
Browse_Graphic_File_Description:
Flight path and video locations over the Bering Sea taken with the GoPro camera.
Browse_Graphic_File_Type: JPEG
Browse_Graphic:
Browse_Graphic_File_Name: @trip KobGatSel 130717 GoPro camera.jpg
Browse_Graphic_File_Description:
Flight path and video locations over the Kobuk Valley, Gates of the Arctic and Selawik areas taken with the GoProt camera.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
USGS Alaska Science Center, National Park Service, US Forest Service Pacific Northwest Research Station
Native_Data_Set_Environment:
All videos are either WMV or MP4 format and 1 Mb to 1.2 Gb in size.
Cross_Reference:
Citation_Information:
Originator: Bruce G. Marcot,
Originator: M. Torre Jorgenson,
Originator: Anthony R. DeGange
Publication_Date: 20140521
Title:
USGS Data Series 846: Low-Altitude Photographic Transects of the Arctic Network of National Park Units and Selawik National Wildlife Refuge, Alaska, July 2013
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: 846
Issue_Identification: 1
Online_Linkage: http://dx.doi.org/10.3133/ds846
Cross_Reference:
Citation_Information:
Originator: Marcot, B.G.,
Originator: M.T. Jorgenson,
Originator: A.R. DeGange
Publication_Date: Unknown
Title: Wildlife Potential habitat Forecasting Framework (Wildcast)
Geospatial_Data_Presentation_Form: website
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details: Study information website
Online_Linkage: http://alaska.usgs.gov/science/program.php?pid=53

Data_Quality_Information:
Logical_Consistency_Report: Not applicable.
Completeness_Report: Not applicable.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
Oblique and nadir photographs and videos were shot along flight routes conducted July 16, 17, and 18, 2013, totaling 17 h 46 m flight time and 2,590 km flight distance, at a mean altitude of approximately 300 m above ground level. Flight routes were selected to provide a broad representation of land cover types within each unit and to overfly specific locations of recent disturbances. Photographs were geotagged;; all nadir photographs and videos were corrected for image lens distortion and appearance (increased gamma and color enhancement); all oblique photographs were corrected only for appearance; all oblique videos were neither geotagged nor corrected for appearance.
Process_Step:
Process_Description:
Raw videos were organized into folders, renamed by flight date and camera type.
Process_Date: Unknown
Process_Step:
Process_Description:
Each video was adjusted for color saturation and gamma, which served to highlight many details.
Process_Date: Unknown

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geodetic_Model:
Horizontal_Datum_Name: World Geodetic System of 1984
Ellipsoid_Name: World Geodetic System of 1984
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.25722210088
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: National Geodetic Vertical Datum of 1929
Altitude_Resolution: 1.00
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Implicit coordinate

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS Alaska Science Center
Contact_Person: Dennis Walworth
Contact_Address:
Address_Type: mailing and physical
Address: 4210 University Dr.
City: Anchorage
State_or_Province: AK
Postal_Code: 99508
Contact_Voice_Telephone: 907-786-7001
Contact_Facsimile_Telephone: 907-786-7150
Contact_Electronic_Mail_Address: dwalworth@usgs.gov
Contact_Instructions: Leave a message.
Resource_Description: Zip file of either wmv or mp4 video and metadata files.
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: zip
File_Decompression_Technique: No compression applied
Transfer_Size: 2186
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://alaska.usgs.gov/science/subprogram.php?sid=184
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20140429
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bruce Marcot
Contact_Organization: USDA Forest Service, Pacific Northwest Research Station
Contact_Position: Research Wildlife Biologist
Contact_Address:
Address_Type: mailing and physical
Address: 620 SW Main St., Suite 400
City: Portland
State_or_Province: OR
Postal_Code: 97208
Contact_Voice_Telephone: 503-808-2010
Contact_Facsimile_Telephone: 503-808-2020
Contact_Electronic_Mail_Address: bmarcot@fs.fed.us
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.9.28 on Thu Jan 15 14:21:46 2015