Identification_Information: Citation: Citation_Information: Originator: Daanen, R.P. Originator: Stokes, T.B. Publication_Date: 2023 Title: Sonar and seismic lake surveys along the proposed triangle road corridor, northwestern Alaska, collected July 6-13, 2021 Geospatial_Data_Presentation_Form: sonar Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2023-1 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 19 p. Online_Linkage: https://doi.org/10.14509/30954 Description: Abstract: Sonar and seismic lake surveys along the proposed triangle road corridor, northwestern Alaska, collected July 6-13, 2021, Raw Data File 2023-1, provides bathymetric sonar and seismic data for 12 lakes in a proposed road corridor between Atqasuk and Wainwright, Alaska, on July 6-13, 2021. These surveys aimed to assess gravel resources in northwestern Alaska as part of the Arctic Strategic Transportation and Resources (ASTAR) program. We measured lake depths with an Edgetech 2205 sonar system and imaged near-surface sediment profiles with an Edgetech sub-bottom profiler, or chirp sensor, installed in a catamaran-style Sea Robotics SR-Surveyor M1.8 autonomous hydrographic survey system. Very little is known about lake-bottom conditions in the region. In addition to acquiring new information about North Slope lake bathymetry, this work serves as a pilot study to identify optimal equipment configuration and project design for challenging, helicopter-supported remote data collection. The data associated with this report are available in digital format as bathymetric digital terrain models (DTMs), bathymetric control points, sontek density and salinity profiles, sonar images, seismic profiles, and a comma-separated value (CSV) file of the lake locations. The data are available from the DGGS website: http://doi.org/10.14509/30954. Purpose: This work serves as a pilot study to identify optimal equipment configuration and project design for challenging, helicopter-supported remote data collection. Supplemental_Information: >bathymetry: Point cloud data format data of the lake bottom surface elevations, georeferenced raster format data of the lake bottom surface elevations, KML format georeferenced, color ramped raster (.kmz) depicting the lake bottom surface elevations in Google Earth, and color ramped raster (.png) of the relative lake bottom surface elevations >hypack: Hypack proprietary data format navigation data >seismic: Images of the seismic charts, data in seismic data (.seg) format, and Hypack files containing the seismic profile >sonar: Tiled raster files showing the sonar reflection image >station-locations: CSV format file depicting the lake locations Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20210706 Single_Date/Time: Calendar_Date: 20210713 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -159.750136 East_Bounding_Coordinate: -157.553533 North_Bounding_Coordinate: 70.813858 South_Bounding_Coordinate: 70.515847 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Bathymetry Theme_Keyword: DGGS Theme_Keyword: Elevation Theme_Keyword: Geologic Theme_Keyword: Geologic Materials Theme_Keyword: Geology Theme_Keyword: Geomorphology Theme_Keyword: Gravel Theme_Keyword: Hydrology Theme_Keyword: Hydrology and Surficial Geology Theme_Keyword: Lakes Theme_Keyword: Permafrost and Periglacial Theme_Keyword: Resources Theme_Keyword: Surface Theme_Keyword: Water Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Atqasuk Place_Keyword: Kunarak Creek Place_Keyword: North Slope Place_Keyword: Walik Creek 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: 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. Data_Set_Credit: These data were paid for by the State of Alaska's Arctic Strategic Transportation and Resources (ASTAR) project and collected and processed by DGGS. We thank the Bureau of Land Management and the City and Native Village of Wainwright for permission to access their land and lakes. Cross_Reference: Citation_Information: Originator: Buzard, R.M. Originator: Heiner, Daniel Originator: Overbeck, J.R. Originator: Glenn, R.J.T. Publication_Date: 2021 Title: Photogrammetry-derived orthoimagery and elevation for Wainwright, Alaska, collected August 3, 2021 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2021-18 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 4 p Online_Linkage: https://doi.org/10.14509/30791 Cross_Reference: Citation_Information: Originator: Gavel, M.M. Originator: Hubbard, T.D. Publication_Date: 2021 Title: Digital data addendum: Analytical data and field observations from surficial geology and morphology of the Alaskan central Arctic Coastal Plain, 1981-1987 Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 93-1A Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 6 p Online_Linkage: https://doi.org/10.14509/30670 Cross_Reference: Citation_Information: Originator: Germann, J.T. Originator: Daanen, R.P. Publication_Date: 2022 Title: Profile and discharge data for five waterways in the Utqiagvik-Atqasuk-Wainwright region, Alaska, collected August 2022 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2022-15 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 5 p Online_Linkage: https://doi.org/10.14509/30915 Cross_Reference: Citation_Information: Originator: Haralson, M.D. Originator: Hubbard, T.D. Originator: Montayne, Simone Publication_Date: 2023 Title: 2021 Arctic Strategic Transportation and Resources (ASTAR) project field station location data and descriptions: Wainwright, Atqasuk, and Utqiagvik, North Slope, Alaska Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2023-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 5 p Online_Linkage: https://doi.org/10.14509/30961 Cross_Reference: Citation_Information: Originator: Haralson, M.D. Originator: Hubbard, T.D. Originator: Montayne, Simone Publication_Date: 2023 Title: 2021 Arctic Strategic Transportation and Resources (ASTAR) project field geotechnical data and sample descriptions: Wainwright, Atqasuk, and Utqiagvik, North Slope, Alaska Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2023-5 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 4 p Online_Linkage: https://doi.org/10.14509/30962 Cross_Reference: Citation_Information: Originator: Herbst, A.M. Originator: Daanen, R.P. Publication_Date: 2022 Title: Lidar-derived elevation data for the Utqiagvik-Atqasuk region, Alaska, collected August 2019 Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2022-10 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 8 p Online_Linkage: https://doi.org/10.14509/30870 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data values were directly measured using the methology described in the accompanying report. Logical_Consistency_Report: Not applicable Completeness_Report: A malfunction in the onboard propulsion system prevented its use throughout the entire area of each lake. We opted to survey a single line across a lake for the remainder of the selected lakes in the survey area. This data release is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: We usded a Robotics SR-Surveyor M1.8 for navigation. The surveyor has an SBG 1.1 m separation dual antenna Global Navigation Satellite System (GNSS) system operating in Real-Time Kinematic (RTK) mode. Data were collected processed and delivered in NAD83 (2011) UTM Zone 4N and vertical datum NAVD88 (GEOID12B). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Due to the nature of the surveys, we could not verify the elevation data sets with independent measurements of an RTK GPS which would otherwise be the standard procedure. Lineage: Process_Step: Process_Description: Sonar and seismic data collection - We used the Robotics SR-Surveyor M1.8 with a double frequency Edgetech 2205 sonar system with 540kHz bathy/1600 kHz sidescan transducers built into the hull. In addition, we installed an Edgetech sub-bottom profiler, or chirp sensor, on the surveyor with dual frequencies of 2 and 4 kHz. The surveyor has an SBG 1.1 m separation dual antenna Global Navigation Satellite System (GNSS) system operating in Real-Time Kinematic (RTK) mode for navigation. Rotational motion is resolved by an Inertial Measurement Unit (IMU). The surveyor has dual 1 kW pocket thrusters used for propulsion and steering and an AML micro-SV sound velocity sensor. The surveyor has an onboard computer that runs Hypack Max software for navigation and data collection and a remote-control system for manual interface during survey start and finish. A single 1500 Whr Li-ion Battery powers all electronics. Although this equipment configuration allowed us to collect useful data successfully, the remote location and weather conditions required several modifications to our acquisition plan. Battery size and windy conditions limited fieldwork to about two hours per battery charge. We lost propulsion of the surveyor during testing and the early part of the data collection and did not have sufficient spare parts to continue using the onboard thrusters. In addition, we found that the shallow nature of the lakes did not allow the sonar to map the entire lake bottom during the planned fieldwork time. However, because the focus of the fieldwork was to attempt to find any structures in the sediment layering that would indicate gravel layers, we decided to continue data collection by towing the surveyor by kayak across the lake to measure a single seismic line. Using this mode of operation, we surveyed 10 lakes on a single battery charge. Side-scan uses a sonar device that emits conical or fan-shaped pulses down toward the seafloor across a wide-angle perpendicular to the path of the sensor through the water. The side scan sonar built into the surveyor's hull provided bathymetry and an image of the lake bottom. We used the data to produce a DTM of the areas surveyed. Seismic chirp, or sub-bottom profiling, is a technique used to detect sediment layers by measuring the timing and strength of reflections from a single energy wave. The seismic chirp can be heard during surveying as a clicking sound. During our survey, we did not detect reflectors in the seismic data that would indicate sediment layering. The layering displayed in the figures is an echo of the lake bottom. Process_Date: 20210713 Process_Step: Process_Description: Sonar and Seismic Dataset Processing - Raw data from the sonar and seismic chirp devices were processed in Hypack Max. This software package integrates the location and movement information from the RTK GNSS antennas and IMU data to show sonar reflection and seismic profiles in the correct location relative to known datums. Sonar data provides a reflection image of the lake bottom and can be used to investigate sediment conditions. The image can be enhanced using a variety of gain functions. The sonar also provides the depth soundings needed to create the DTM. The seismic imagery was processed with standard cleaning steps of a frequency filter, dynamic range filter, time-varying gain filter, bottom tracking (automated or manual), and a sound velocity correction. Process_Date: 2021 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: raster Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .0000001 Longitude_Resolution: .0000001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: NAVD88, GEOID12B Depth_Resolution: 0.001 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: bathymetry Entity_Type_Definition: Point cloud data format data of the lake bottom surface elevations, georeferenced raster format data of the lake bottom surface elevations, KML format georeferenced, color ramped raster (.kmz) depicting the lake bottom surface elevations in Google Earth, and color ramped raster (.png) of the relative lake bottom surface elevations Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: bathymetry Detailed_Description: Entity_Type: Entity_Type_Label: hypack Entity_Type_Definition: Hypack proprietary data format navigation data Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: hypack Detailed_Description: Entity_Type: Entity_Type_Label: seismic Entity_Type_Definition: Images of the seismic charts, data in seismic data (.seg) format, and Hypack files containing the seismic profile Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: seismic Detailed_Description: Entity_Type: Entity_Type_Label: sonar Entity_Type_Definition: Tiled raster files showing the sonar reflection image Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: sonar Detailed_Description: Entity_Type: Entity_Type_Label: station-locations Entity_Type_Definition: CSV format file depicting the lake locations Entity_Type_Definition_Source: DGGS Entity_Attribute_Layer_Name: station-locations Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: 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. Resource_Description: RDF 2023-1 Distribution_Liability: 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. Standard_Order_Process: Non-digital_Form: 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. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: sonar Format_Version_Date: 20230621 Format_Information_Content: bathymetric digital terrain models (DTMs), bathymetric control points, sontek density and salinity profiles, sonar images, and seismic profiles Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/30954 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20230621 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Person: Simone Montayne Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: 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. Metadata_Extensions: Online_Linkage: https://dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions