Basic Hydrographic Survey 2022 H13689 Oregon Offshore Oregon Northwest of Coos Bay 20000 2022-11-12 2022-11-13 2022-09-30 OPR-M328-FA-22 NOAA Ship Fairweather (S220) CDR Meghan McGovern MBES Kongsberg Maritime EM 712 MBES Backscatter Kongsberg Maritime EM 712 Pacific Hydrographic Branch meters Any revisions to the Descriptive Report (DR) applied during office processing are shown in red italic text. The DR is maintained as a field unit product, therefore all information and recommendations within this report are considered preliminary unless otherwise noted. The final disposition of survey data is represented in the NOAA nautical chart products. All pertinent records for this survey are archived at the National Centers for Environmental Information (NCEI) and can be retrieved via https://www.ncei.noaa.gov/. Products created during office processing were generated in NAD83 UTM 10N, MLLW. All references to other horizontal or vertical datums in this report are applicable to the processed hydrographic data provided by the field unit. North American Datum 1983 Mean Lower Low Water VDatum Projected UTM 10 2023-04-16 CC0-1.0 (NOAA Field Units) CC0-1.0 https://creativecommons.org/publicdomain/zero/1.0/ https://creativecommons.org/publicdomain/zero/1.0/legalcode These data were produced by NOAA and are in the public domain within the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0). 2023-04-14 Pacific Hydrographic Branch ENS Adam Martinez Sheet Manager NOAA Ship FAIRWEATHER This project is being conducted in support of the Expanding Pacific Research and Exploration of Submerged Systems (EXPRESS) campaign comprised of a large and diverse team of federal and non-federal partners targeting deepwater areas off of the U.S. Pacific Coast. The primary objective of this project is to collect data for surficial geology, benthic habitats, subbottom faults, geologic hazards and sedimentary processes. Data from this project will support a variety of disciplines including offshore energy projects and infrastructure, marine spatial planning, ecosystem assessments, and marine geohazards. Data from this project will also be collected to support for BOEM's Offshore Wind Energy Program. This program was created to support the White House administration's goal to deploy 30 gigawatts of offshore wind energy by 2030. NOAA and BOEM will conduct a coordinated multibeam echo sounder survey of the project area to collect bathymetry, acoustic backscatter data, and water column data. Bathymetric data from this project will be further used to update National Ocean Service (NOS) nautical charting products and improve maritime safety. This project will cover a total of 210 SNM. Survey data is intended to supersede all prior survey data in the common area. Three products were created for this survey: a VR MBES Surface, a finalized VR MBES Surface, and an Acoustic Backscatter Surface. All survey systems and methods utilized during this survey were as described in OPR-M328-FA-21_DAPR v.3. All data were reviewed for DTONs and none were identified in this survey. There is a noticeable offset of around 1m or less in 160m of water between some of the lines. This is over 118 linear nautical miles. This appears to be due to the low number of sound speed casts distributed throughout the larger geographic area. Despite this, the data is still within the uncertainty standards required. This survey does meet charting specifications and is adequate to supersede prior data.