Metadata: Identification_Information: Citation: Citation_Information: Originator: Kurt J. Rosenberger Originator: Olivia M. Cheriton Originator: Curt D. Storlazzi Publication_Date: 20240123 Title: Ofu, American Samoa, wave and water level data, 2020 Geospatial_Data_Presentation_Form: NetCDF files Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9RYN5NH Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9RYN5NH Larger_Work_Citation: Citation_Information: Originator: Kurt J. Rosenberger Originator: Olivia M. Cheriton Originator: Curt D. Storlazzi Publication_Date: 2023 Title: Cross-reef wave and water level data from coral reef environments Edition: 3.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9RYN5NH Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested Citation: Rosenberger, K.J., Cheriton, O.M., and Storlazzi, C.D., 2020, Cross-reef wave and water level data from coral reef environments (ver. 3.0, January 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P9RYN5NH. Online_Linkage: https://doi.org/10.5066/P9RYN5NH Description: Abstract: Time series data of wave height and water surface elevation were acquired for 399 days at four locations on the southern reef of Ofu, American Samoa, in support of a study on submarine groundwater dynamics on this reef within the National Park of American Samoa’s Ofu Unit. The relative placement of sensors on the reef were as follows: OFU20E03 – mid reef at East site; OFU20E04 – inner reef at East site; OFU20W03 – mid reef at West site; OFU20W04 – inner reef at West site. Purpose: The measurements of waves and water levels from these instrument deployments provide information on the variability of waves on the coral reefs of southern Ofu. These data will be used to study the transformation of waves over the reef and how this process contributes to water levels, runup and the potential for flooding of the coast. They will also be used to support analyses into submarine groundwater dynamics on this reef. Supplemental_Information: Additional information about the field activity or activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-601-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20200205 Ending_Date: 20210310 Currentness_Reference: ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -169.7 East_Bounding_Coordinate: -169.6 North_Bounding_Coordinate: -14.1 South_Bounding_Coordinate: -14.2 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Water Column Features Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: time series datasets Theme_Keyword: marine water quality Theme_Keyword: ocean waves Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: wave observations Theme_Keyword: water level measurements Theme_Keyword: physical oceanography Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: water pressure Theme_Keyword: salinity/density Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:64ef7cadd34e4b6d8ab72c8b Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Territory of American Samoa Place_Keyword: Ofu Island Place_Keyword: South Ofu Beach Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey and the National Park of American Samoa as the originator(s) of the dataset and in products derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/64ef7cadd34e4b6d8ab72c8b?name=ofu2020_map_cropped.jpg&allowOpen=true Browse_Graphic_File_Description: Google Earth image showing Ofu Island and location of instruments. Browse_Graphic_File_Type: JPEG Data_Set_Credit: Eric K. Brown, National Park of American Samoa Native_Data_Set_Environment: Raw data from each instrument were exported to ASCII text files using the manufacturers software, RBR Ruskin v2.20.4, on an Windows Computer running Windows 10 Enterprise. Exported data were QA/QC’d in Matlab and exported to netCDF using Python. Cross_Reference: Citation_Information: Originator: Olivia M. Cheriton Originator: Curt D. Storlazzi Originator: Kurt J. Rosenberger Originator: Ferdinand K.J. Oberle Originator: Eric K. Brown Publication_Date: 2024 Title: Extreme Low-Frequency Waves on the Ofu, American Samoa, Reef Flat Other_Citation_Details: Cheriton, OM, Storlazzi, CD, Oberle, FKJ, Rosenberger, KJ, and Brown, EK (2024) Extreme low-frequency waves on the Ofu, American Samoa, reef flat. Coral Reefs, https://doi.org/10.1007/s00338-023-02453-w Online_Linkage: https://link.springer.com/article/10.1007/s00338-023-02453-w Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were visually inspected for quality, but generally all data are included in time series. Logical_Consistency_Report: Data fall within expected ranges. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. The inner-reef instrument at the East site stopped collecting data earlier than the other instruments (December 1, 2020). The inner-reef instrument at the West site (OFU20W04) had an incomplete burst on September 14, 2020 at 15:00; this burst was removed. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Stated accuracy of the GPS unit used to geolocate the instrument package is +/- 5 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: No formal assessment of vertical accuracy was performed. The stated accuracy of the pressure sensor on the wave gauge is +/- 0.01 decibars, which is approximately equivalent to 0.01 meters. Lineage: Process_Step: Process_Description: The RBR solo D|wave instruments operated in burst-sampling mode; they measured pressure as 4096 samples collected at 2 Hz every hour (approximately 34-min long bursts). Raw data from each instrument were exported to ASCII text files using the manufacturers software, RBR Ruskin v2.20.4, on a Personal Computer running Windows 10 Enterprise. Exported data were QA/QC’d in Matlab R2020a and exported to netCDF using Python 3.9. Data records were trimmed to a uniform start time chosen according to the earliest instrument deployment; as a result, some records still retain some out-of-water periods. The raw pressure readings include the pressure from both the overlying water and the atmosphere, and therefore must be corrected to remove the atmospheric pressure. Data on atmospheric pressure were downloaded from a local weather station maintained by the National Oceanic and Atmospheric Administration (American Samoa Observatory (SMO) on the northeastern tip of Tutuila Island, American Samoa, https://gml.noaa.gov/obop/smo/). The data on barometric pressure were interpolated to the burst interval of the pressure measurements, and a single value was removed from each burst. Process_Date: 2023 Process_Step: Process_Description: Files are named with a convention that uses a 11-digit alpha-numeric code. The first three characters for this dataset are all 'OFU' for the experiment name; the fourth and fifth positions represent the calendar year in which the first data point in the file was taken (20, 2020); the sixth, seventh and eighth characters are an alphanumeric code for the site name (W03, W04 etc.); the ninth and tenth characters represent the instrument position on the platform, where 01 is the top-most. The eleventh character ‘b’ indicates that these are the raw burst data. The ‘-cal’ suffix indicates the processing level (‘cal’, calibrated, or translated into scientific units, provisional status). Process_Date: 2023 Spatial_Data_Organization_Information: Indirect_Spatial_Reference: Data were collected continuously along survey transects. Refer to self-contained NetCDF files for more location information. Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00001 Longitude_Resolution: 0.00001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 (NAD 1983) Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: Mean sea level Altitude_Resolution: 0.1 Altitude_Distance_Units: meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: NetCDF files are self-contained and attribute information may be found in the header of the file itself. Entity_and_Attribute_Detail_Citation: The entity and attribute information was generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: These data are available in binary netCDF format. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Date: 2023 Format_Information_Content: The file contains the time-series data of waves and water level in NetCDF format. File_Decompression_Technique: No decompression applied. Transfer_Size: 751 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/64ef7cadd34e4b6d8ab72c8b?name=OFU20E0301b-cal.nc Network_Resource_Name: https://www.sciencebase.gov/catalog/item/64ef7cadd34e4b6d8ab72c8b Network_Resource_Name: https://doi.org/10.5066/P9RYN5NH Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the data file. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Date: 2023 Format_Information_Content: The file contains the time-series data of waves and water level in NetCDF format. File_Decompression_Technique: No decompression applied. Transfer_Size: 565 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/64ef7cadd34e4b6d8ab72c8b?name=OFU20E0401b-cal.nc Network_Resource_Name: https://www.sciencebase.gov/catalog/item/64ef7cadd34e4b6d8ab72c8b Network_Resource_Name: https://doi.org/10.5066/P9RYN5NH Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the data file. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Date: 2023 Format_Information_Content: The file contains the time-series data of waves and water level in NetCDF format. File_Decompression_Technique: No decompression applied. Transfer_Size: 751 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/64ef7cadd34e4b6d8ab72c8b?name=OFU20W0301b-cal.nc Network_Resource_Name: https://www.sciencebase.gov/catalog/item/64ef7cadd34e4b6d8ab72c8b Network_Resource_Name: https://doi.org/10.5066/P9RYN5NH Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the data file. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Date: 2023 Format_Information_Content: The file contains the time-series data of waves and water level in NetCDF format. File_Decompression_Technique: No decompression applied. Transfer_Size: 900 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/64ef7cadd34e4b6d8ab72c8b?name=OFU20W0401b-cal.nc Network_Resource_Name: https://www.sciencebase.gov/catalog/item/64ef7cadd34e4b6d8ab72c8b Network_Resource_Name: https://doi.org/10.5066/P9RYN5NH Access_Instructions: Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the data file. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. Fees: None. Technical_Prerequisites: These data can be viewed with the NOAA netCDF file viewer, ncBrowse, which can be downloaded from the internet at https://www.nodc.noaa.gov/gtspp/software/ncbrowse/index.html. Metadata_Reference_Information: Metadata_Date: 20240123 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998