gov.noaa.nmfs.inport:63206 eng UTF8 dataset CSV Files Pacific Islands Fisheries Science Center 808-725-5300 1845 Wasp Blvd. Honolulu HI 96818 USA https://www.pifsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 8:00 a.m. - 4:30 p.m. resourceProvider Olenski, Brooke brooke.olenski@noaa.gov pointOfContact Akridge, Michael W (808)725-5483 1845 Wasp Blvd. Honolulu HI 96818 USA michael.akridge@noaa.gov pointOfContact 2026-03-04T19:17:24 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) Satellite Tagged Net Locations NWHI 2018 - 2021 Satellite Tagged Net Locations NWHI 2018 - 2021 2021-04 creation 2021-11-02 revision 2021 publication NOAA/NMFS/EDM 63206 https://www.fisheries.noaa.gov/inport/item/63206 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Pacific Islands Fisheries Science Center 808-725-5360 1845 Wasp Blvd. Honolulu HI 96818 USA pifsc.info@noaa.gov https://www.pifsc.noaa.gov WWW:LINK-1.0-http--link Pacific Islands Fisheries Science Center Website Pacific Island Fisheries Science Center homepage information 8:00 a.m. - 4:30 p.m. originator https://www.fisheries.noaa.gov/region/pacific-islands#science WWW:LINK-1.0-http--link NOAA Fisheries Pacific Islands Region - Science Overview Online Resource download tableDigital McCoy KS, Morioka J, Huntington B, Kindinger TL, O'brien K. Movement and retention of derelict fishing nets in Northwestern Hawaiian Island reefs. DRAFT. This pilot study follows the movements of 6 derelict fishing nets over time to study how far derelict nets can travel within an atoll, and how long they remain stationary. Six floating derelict fishing nets were located and tagged with satellite buoys in Pearl and Hermes Atoll in the Northwestern Hawaiian Islands during a marine debris removal mission in 2018. Locations of the 6 nets were transmitted every four hours from 09-30-2018 until the buoys broke free or stopped transmitting due to technical reasons. Last known stationary locations were surveyed on a return mission in September of 2021, and 4 of the 6 nets were relocated. Tracking net movement and stationary times will help the marine debris program be more efficient in the future when removing derelict fishing nets from the NWHI. This pilot study is part of a larger effort to test methodologies that could increase the debris removal program's efficiency and help quantify impacts to reefs. NOAA Fisheries, Ecosystem Sciences Division completed McCoy, Kaylyn S (808)725-5471 1845 Wasp Blvd. Honolulu HI 96818 USA kaylyn.mccoy@noaa.gov pointOfContact McCoy, Kaylyn S (808)725-5471 1845 Wasp Blvd. Honolulu HI 96818 USA kaylyn.mccoy@noaa.gov custodian notPlanned Dataset is updated when new data is obtained. Geographic Information > Marine Debris theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Damage Assessment > Marine Debris theme CoRIS Theme Thesaurus POSITION - GEOGRAPHIC DEBRIS theme NODC DATA TYPES THESAURUS Satellite data theme NODC OBSERVATION TYPES THESAURUS CORAL REEF STUDIES theme NODC PROJECT NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division theme NODC SUBMITTING INSTITUTION NAMES THESAURUS COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Northwestern Hawaiian Islands (28N178W0000) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Pearl and Hermes Reef (27N176W0001) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands (28N178W0000) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Northwestern Hawaiian Islands > Pearl and Hermes Reef (27N176W0001) place CoRIS Place Thesaurus HI Papahānaumokuākea Marine National Monument place NODC SEA AREA NAMES THESAURUS: GPS instrument NODC INSTRUMENT TYPES THESAURUS SE: Oscar Elton Sette platform NODC PLATFORM NAMES THESAURUS CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program ESD Ecosystem Sciences Division PIFSC Pacific Islands Fisheries Science Center derelict fishing gear theme Hawaii NWHI Northwestern Hawaiian Islands place DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Marine Debris project InPort otherRestrictions Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Satellite Tagged Net Locations NWHI 2018 - 2021 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/63206. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: Please cite NOAA Fisheries, Ecosystem Science Division (ESD) when using the data. Example: Ecosystem Science Division; Pacific Islands Fisheries Science Center (2020). Satellite Tagged Net Locations NWHI 2018 - 2020. NOAA's National Center for Environmental Information, https://www.fisheries.noaa.gov/inport/item/63206 otherRestrictions Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. unclassified Not applicable Not applicable NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 63206 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/63206.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US Data accessed using SatLink sofware: ELB3010 Manager, downloaded as a csv file, data manipulated in R version 3.6.1 -175.800617 -175.7264 27.891964 27.943283 Geographic extent of tagged derelict fishing nets | Currentness: 9/30/2018 - 9/14/2021 2018-09-30 2021-09-14 The Papahanaumokuakea Marine National Monument (PMNM) includes the 1200 nautical mile chain of atolls and islets known as the Northwestern Hawaiian Islands (NWHI) that are geographically positioned as a repository for marine debris. Marine debris circulates within the North Pacific Subtropical Gyre until it encounters the atolls of the NWHI. The Ecosystem Sciences Division (ESD) at the NOAA Pacific Islands Fisheries Science Center (PIFSC) has conducted both ship- and shore-based missions in the NWHI to survey for and remove derelict fishing gear and many other types of marine debris. Exploratory and opportunistic efforts began in 1996 that eventually evolved into annual dedicated cruises deployed up to 4 months at a time with a team of up to 18 divers. These marine debris missions have been supported by several agencies over the years, including PMNM, NOAA Marine Debris Program (MDP), NOAA Damage Assessment Remediation and Restoration Program (DARRP), and the NOAA Coral Reef Conservation Program (CRCP). ESD has removed derelict fishing gear and other marine debris from Pearl and Hermes Atoll (PHR), Midway Atoll (MID), Kure Atoll (KUR), Lisianski Island (LIS), Laysan Island (LAY), Maro Reef (MAR), and French Frigate Shoals (FFS). false eng false Spreadsheet Satellite Tagged Net Locations NWHI 2018 - 2021 Entity Data Table 2021-11-03 publication CSV - Comma Separated Values (Text) Uncompressed NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact WWW:LINK-1.0-http--link NCEI Contact Information Information for contacts at NCEI. information distributor https://accession.nodc.noaa.gov/0229980 WWW:LINK-1.0-http--link ESD_Debris_satellite_net_locations_NWHI_09302018_09142021 csv file of buoy ID numbers, coordinates, date, and time. Locations of tagged satellite nets in the NWHI download dataset Accuracy Location accuracy dependent on software: Satlink ELB3010 ILL Completeness Report 3 of the 6 buoy tags stopped transmitting prematurely. There are some time frames when data were not transmitted at the regular 4 hour interval. Conceptual Consistency Pretty good conceptual consistency except for holes in the location transmissions, which are due to unknown reasons. Data were downloaded using ELB 3010 Manager software. Locations were imported into csv file, symbols in coordinates were replaced in excel, then the files were loaded into the software program R. In R, date and time were separated and formatted to have consistent formats, and coordinates were converted to decimal degrees. Several points of bogus transmissions were removed, and all files were combined into one (raw data is one file for each buoy for each month). Download data Open ELB3010 Manager Software OLD SOFTWARE VERSION: Right click on the map and minimize to bring the dashboard into view Open buoy log (T:\MarineDebris\MD Operations\NWHI\2018\Data\Spatial\Satlink\Positions) to see which ones are still active. Find the last timestamp for each buoy Example: stored time column: 21/11/18 16:45:15 In ELB manager, click on the red checkmark icon with the “I” on it. A window will open to show the last positions. Show Last 400 should be sufficient. Next to the filter name button, select the buoys one at a time, click Update (in the top right corner) and select the records since the last download. Record the latest date/time stamp in the log sheet. Once they are highlighted, right click and select Export… Navigate to the Positions/workspace folder and create a folder with today’s date. Save the file with the default name, but add an underscore and the last 2 digits in the buoy ID number (ex: Export1812102007_00) NEW SOFTWARE VERSION: In ELB manager, the three buoys should show up in a list on the left half of the screen. Right click and select ‘Export’ from the menu. In the pop up window, apply the filter ‘Last days’ and select something reasonable according to the last download in the buoy log. Save the file with the default name here: T:\MarineDebris\MD Operations\NWHI\2018\Data\Spatial\Satlink\Positions\workspace\raw_data Click Export to file, Accept, and close the window. Repeat for each buoy. McCoy, Kaylyn S (808)725-5471 kaylyn.mccoy@noaa.gov processor Convert text files to csv Individual values are separated by semicolons, not commas, like excel is expecting. Change that in notepad. Open notepad, and open each csv file (to locate, navigate to folder and select ‘all files’ for type. Create a new first line and type: sep=; Save file, open next file, and do the same thing McCoy, Kaylyn S (808)725-5471 kaylyn.mccoy@noaa.gov processor Convert coordinates from degrees decimal minutes to decimal degrees and exclude extra information Navigate to the raw data folder and open the csv files in excel and convert symbols to readable characters for R (may help to sort files by date modified) Highlight the latitude and longitude columns and select the ‘find and replace’ tool - replace ‘°’ with ‘/’ - replace ‘' ’ with ‘/’ (make sure to include a space after ' ) - replace ‘,’ with ‘.’ Save file here: T:\MarineDebris\MD Operations\NWHI\2018\Data\Spatial\Satlink\Positions\workspace\excel_replace_values_clean_data\2021 Save with default name, and add ‘_replace’ to the end of the file name For R script: Navigate here: T:\MarineDebris\MD Operations\NWHI\2018\Data\Spatial\Satlink\Positions\R code and open 1_format_lat_long_date_time_from_raw R code converts coordinates to decimal degrees and converts date and time into a readable format for calculating summaries. All raw files are combined into one csv file. ADD DRAFT CITATION otherRestrictions otherRestrictions Access Constraints: None | Use Constraints: None GPS (Global Positioning System) GPS (Global Positioning System) The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. This system consists of three segments: the space segment, the control segment, and the user segment. The U.S. Air Force develops, maintains, and operates the space and control segments.