In situ field data, Coastal Alaska, 2023 to 2025 (ver. 2.0, March 2026)
By Li H. Erikson, Ann E. Gibbs, Richard M. Buzard, Daniel J. Nowacki, Alexander G. Snyder, Anita C. Engelstad, Cordell Johnson, Alex L. Nereson, Jin-Si R. Over, Paul Russell, and Colin Lyons
https://doi.org/10.5066/P13YIWKC
Dates
Published: July 10, 2025
Last Revised: March 13, 2026 (ver. 2.0)
Summary
These field data such as first floor elevation and bathymetric surveys were collected to support development of coastal mapping products and advance storm response and recovery in Alaskan coastal communities. The data consists of essential community infrastructure elevation data to better understand flood exposure and support analysis of flood mitigation solutions, bathymetric surveys to improve bathymetric maps, and measurements for testing and developing models and improving understanding of oceanographic processes in western Alaska. This product may be of use by scientists, emergency responders, managers, planners, and residents of western coastal Alaska.
Location-Elevation Data
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First finished floor elevation data collected in seven Alaska communities, geographic coordinate system
First finished floor elevation data, as well as ground survey points for critical infrastructure, for example bridges, fuel farms, and power generators, were collected in Elim, Golovin, Kotzebue, Mekoryuk, Saint George, Stebbins, and Tununak, Alaska. The elevation data were collected with real-time kinematic global navigation satellite system (RTK-GNSS) equipment. Data are available in CSV file format. Two files are available per community: one in a geographic coordinate system (this dataset) and the other in the Alaska State Plane coordinate system (in this same data release). Additionally, the supplemental survey reports are provided.
Data Files
FFE_7AlaskaCommunities_GeographicCoordinates.zip - 29.0 KB - MD5:72b2a7259aeb3ec6f234ed8760b6269f
Metadata Files
FFE_GeographicCoordinates_metadata.xml - 18.1 KB
FFE_GeographicCoordinates_metadata.txt - 17.7 KB
Satellite image showing the communities where elevation data were collected. -
First finished floor elevation data collected in seven Alaska communities, state plane coordinate system
First finished floor elevation data, as well as ground survey points for critical infrastructure, for example bridges, fuel farms, and power generators, were collected in Elim, Golovin, Kotzebue, Mekoryuk, Saint George, Stebbins, and Tununak, Alaska. The elevation data were collected with real-time kinematic global navigation satellite system (RTK-GNSS) equipment. Data are available in CSV file format. Two files are available per community: one in the Alaska State Plane coordinate system (this dataset) and the other in a geographic coordinate system (in this same data release). Additionally, the supplemental survey reports are provided.
Data Files
FFE_7AlaskaCommunities_AKStatePlaneCoordinates.zip - 36.1 KB - MD5:3b7c2364b33e514f4f01b750c34b7d25
Metadata Files
FFE_AKStatePlaneCoordinates_metadata.xml - 20.5 KB
FFE_AKStatePlaneCoordinates_metadata.txt - 20.3 KB
Satellite image showing the communities where elevation data were collected. -
GNSS elevation data collected in 2024 and 2025 on beaches and areas relevant to flood hazard studies in Alaska communities (ver. 2.0, March 2026)
Elevation point data were collected in Deering, Golovin, Koyuk, Kotzebue, Shishmaref, Teller, and Unalakleet, Alaska between June 2024 and August 2025. Coastal elevation profiles were measured at previously established locations. Other data points are categorized as base station, bathymetry, benchmark, camera calibration data, community-based monitoring profile, drainage observation, flood staff, ground control point, miscellaneous, and water level. The elevation data were collected with real-time kinematic global navigation satellite system (RTK-GNSS) equipment. Data are available in a single CSV file per community.
Data Files
GNSS_ElevationData_Deering_202407.csv - 51.4 KB - MD5:28d9088fbd63226fec46ca030beb4a15
GNSS_ElevationData_Golovin_202409.csv - 142.8 KB - MD5:aa56edeb96364991e61cabdd81a90108
GNSS_ElevationData_Kotzebue_202407.csv - 12.3 KB - MD5:ca996279c381995bf1749319a3e9c25a
GNSS_ElevationData_Koyuk_202407.csv - 52.8 KB - MD5:d4cf3658afa8a3921cce0d56e5966dfd
GNSS_ElevationData_Shishmaref_202508.csv - 660.3 KB - MD5:2b886f7be60b7935aed64ff0c80c75fe
GNSS_ElevationData_Teller_202508.csv - 434.8 KB - MD5:99a40eb4c81180284a58c3f6783ad2c8
GNSS_ElevationData_Unalakleet_202406.csv - 214.6 KB - MD5:a5efea74e80bdd7d9ccb7245e2a32532
Metadata Files
GNSS_ElevationData_metadata.xml - 24.4 KB
GNSS_ElevationData_metadata.txt - 24.4 KB
Satellite image showing the locations where elevation data were collected.
Sonar Data
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Bathymetry at entrance to Golovnin Lagoon, Alaska, 2024
This dataset contains nearshore bathymetry measurements collected at the entrance to Golovnin Lagoon, Alaska. The data were collected in September 2024 and subsequently processed by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Results are provided in a comma-separated value format (csv).
Data Files
bathymetry_golovnin_lagoon_2024.csv - 11.3 MB - MD5:34c5b721bfcbccef3ff42cf043d9c89d
Metadata Files
Satellite image overlain with bathymetry data points collected at the entrance to Golovnin Lagoon, Alaska in September 2024. -
Bathymetry at Kotzebue, Alaska, July 2024
This dataset contains nearshore and inland bathymetry near Kotzebue, Alaska. The data were collected on July 10, 2024, and subsequently processed by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Results are provided in a comma-separated value format (csv).
Data Files
bathymetry_kotzebue_20240710.csv - 10.6 MB - MD5:5870d6c1b11856f878ab282d8775b95f
Metadata Files
Satellite image overlain with bathymetry data points collected near Kotzebue, Alaska in July 2024. -
Nearshore bathymetry of the Koyuk River mouth, Alaska, 2024
This dataset contains nearshore bathymetry measurements collected at the mouth of the Koyuk River in Alaska. The data were collected in June 2024 and subsequently processed by the U.S. Geological Survey, Pacific Coastal and Marine Science Center. Results are provided in a comma-separated value format (csv).
Data Files
bathymetry_koyuk_river_mouth_20240609.csv - 44.1 KB - MD5:2433db03c105fd11329818598b1ef592
Metadata Files
Satellite image overlain with bathymetry data points collected at the mouth of the Koyuk River, Alaska in June 2024.
Supplemental Files
- FFE_supplemental_SurveyReports.zip - 989.9 KB
- VersionHistory_P13YIWKC.txt - 1.1 KB
Suggested Citation
Erikson L.H., Gibbs A.E., Buzard, R.M., Nowacki, D.J., Snyder A.G., Engelstad A.C., Johnson C., Nereson A.L., Over J.R., Russel, P., Lyons, C., 2025, In situ field data, Coastal Alaska, 2023 to 2025 (ver. 2.0, March 2026): U.S. Geological Survey data release, https://doi.org/10.5066/P13YIWKC.
Revision History
First release: 2025
Revised: March 2026 (ver. 2.0)
Changes in Version 2.0
New datasets will be added (no change to existing datasets)