25307 Timor: singlebeam Data Set Published / External 27416 Timor Leste Project Completed 2017 This dataset contains singlebeam bathymetry data acquired during small-boat surveys conducted from October 20-26, 2012 and June 4-27, 2013 in Timor-Leste by the NOAA Coral Reef Ecosystem Program (CREP). Data was acquired with a HydroLite-TM Echosounder Kit by Seafloor Systems, a small boat Hydro Survey System using Ohmex SonarMite echosounder and Trimble ProXT receiver. The singlebeam bathymetry was used to ground-truth bathymetry derived from WorldView-2 satellite imagery by CREP for the near-shore areas (0-20 m depths) around Timor-Leste. In 2011, NOAA and the United States Agency for International Development (USAID) Timor-Leste Mission formed a 5-year bi-lateral partnership agreement from 2012 to 2016, in support of the Government of Timor-Leste—particularly the Ministry of Agriculture and Fisheries (MAF)—by addressing significant information gaps in their nearshore marine ecosystems. Specifically, MAF asked NOAA to address the following questions: 1. Where are the nearshore marine resources? 2. What are the nearshore marine resources? 3. How are they changing over time and what threats are potentially causing these changes? 4. What approaches are needed to manage and conserve the nearshore marine resources? With financial support from USAID and in-kind support from the NOAA Coral Reef Conservation Program (CRCP), the NOAA Coral Reef Ecosystem Program (NOAA-CREP) conducted baseline ecosystem assessment surveys to inform ecosystem-based management planning in Timor-Leste. The primary activities conducted by NOAA to answer these questions included: 1. satellite mapping of nearshore habitats, 2. conducting coral reef ecosystem assessments, 3. establishing ecological baselines for climate change, and 4. building management capacity by developing a spatial data framework The singlebeam bathymetry data described herein resulted from the first activity to conduct satellite mapping for the nearshore waters around Timor-Leste. Pacific Islands Fisheries Science Center. 2017. Interdisciplinary baseline ecosystem assessment surveys to inform ecosystem-based management planning in Timor-Leste: Final Report. Pacific Islands Fisheries Science Center, PIFSC Special Publication, SP-17-002, 234 p. https://doi.org/10.7289/V5/SP-PIFSC-17-002. Mission ID, 2012: SBP1215 Mission ID, 2013: SBP1310 Surveys were conducted from local Timorese boat charters: 2012/2013: Lancet, 27’ Boston Whaler for shore-based surveys 2012: Cattitude, 40’ live-aboard catamaran 2013: Sundancer NT, 50’ live-aboard catamaran Theme ISO 19115 Topic Category elevation Theme CoRIS Discovery Thesaurus Geographic Information > Bathymetry Theme CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat Theme CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth Theme CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs Theme NODC DATA TYPES THESAURUS BATHYMETRY Theme NODC DATA TYPES THESAURUS water depth Theme NODC OBSERVATION TYPES THESAURUS in situ Theme NODC PROJECT NAMES THESAURUS CORAL REEF STUDIES Theme NODC PROJECT NAMES THESAURUS Coral Triangle Initiative Theme NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program Theme CRED Theme CREP Theme Coral Reef Ecosystem Division Theme Coral Reef Ecosystem Program Theme PIFSC Theme Pacific Islands Fisheries Science Center Theme Singlebeam Theme USAID Theme United States Agency for International Development Theme seafloor elevation Theme single beam Spatial CoRIS Place Thesaurus COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001) Spatial CoRIS Place Thesaurus OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001) Spatial NODC SEA AREA NAMES THESAURUS Indian Ocean Spatial NODC SEA AREA NAMES THESAURUS Timor Sea Spatial Atauro Spatial Baucau Spatial Bobonaro Spatial Dili Spatial Jaco Spatial Lautem Spatial Liquica Spatial Manatuto Spatial Oecusse Spatial Timor Spatial Timor-Leste Spatial Vila MPA Stratum Global Change Master Directory SEA FLOOR Pacific Islands Fisheries Science Center Honolulu HI USA Data Set CSV Files None Planned Table (digital) The singlebeam bathymetry includes the date and time the data were collected, the location, and the depths. The 2012 data includes GPS information (fix, satellitles, HDOP), and the 2013 data includes the record type (depth only [D], or depth linked to GPS [L]) and the return signal strength (the higher the number the better). https://www.fisheries.noaa.gov/inport/item/50856 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. PIFSC Coral Reef Ecosystem Program and funded by the United States Agency for International Development HydroLite-TM Echosounder Kit by Seafloor Systems, SonarMite BT-TM system, portable bluetooth echo sounder Small boat Not applicable 50856 Published / External Completed Singlebeam bathymetry for Timor-Leste Data Table Yes Singlebeam bathymetry for Timor-Leste Region TEXT No No Active 2012: The region location in the pacific where surveys were conducted (Coral Triangle) Island TEXT No No Active 2012: The island location in the pacific where surveys were conducted (Timor-leste) LocalTime DATETIME No No Active 2012: GMT (Greenwich Mean Time) +9 for local time in Timor-leste (mm/dd/yyyy hh:mm) GMTime DATETIME No No Active 2012: Greenwich Mean Time (mm/dd/yyyy hh:mm) Latitude NUMERIC No No Active 2012: Y-coordinate in decimal degrees Longitude NUMERIC No No Active 2012: X-coordinate in decimal degrees SeafloorDepth NUMERIC No No Active 2012: Depth in meters, 0 to -30m FixType NUMERIC No No Active 2012: Type of position fix (0 = No fix, 1 = GPS fix, 2 = DGPS fix) NumSatellites NUMERIC No No Active 2012: number of satellites in use (tracked by the GPS at the time of the position was fixed/recorded) HDOP NUMERIC No No Active 2012: horizontal dilution of precision, or the relative accuracy of the horizontal position. A measure of the geometric quality of a GPS satellite configuration in the sky. HDOP is a factor in determining the relative accuracy of a horizontal position. The smaller the DOP number, the better the geometry. DATETIME DATETIME No No Active 2013: the date and time (GMT) in mm/dd/yyyy hh:mm:ss format SEC NUMERIC No No Active 2013: sub-seconds (ss.0) X NUMERIC No No Active 2013: Longitude in decimal degrees Y NUMERIC No No Active 2013: Latitude in decimal degrees Z NUMERIC No No Active 2013: Unknown TYPE TEXT No No Active 2013: Type of record, D = Depth only, L= Depth and Location (depth is linked to GPS fix). There are two 'type = D' records for every 'type = L' record, because the sonar pings every half second, which is more frequent than the GPS. TIDE NUMERIC No No Active 2013: Not used DEPTH NUMERIC No No Active 2013: corrected depth in meters (20 cm or 30 cm correction applied, distance from instrument to surface of water) QA INTEGER No No Active 2013: Records with a type = L indicate the depth record includes the GPS location and has a QA = 1 (NMEA tag for GPS fix). For the 'type=D' records, the higher the QA, the better the return signal strength. QA=70 is low signal strength (not as good), QA = 130 is high return signal strength (better). Data Steward 2012 Person Gray, Andrew andrew.gray@noaa.gov https://orcid.org/0000-0003-2252-7367 email preferred Distributor 2017 Organization NOAA National Centers for Environmental Information NCEI ncei.info@noaa.gov https://ror.org/04r0wrp59 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. Online Resource Distributor 2012 2017 Person DesRochers, Annette M annette.desrochers@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5461 8 am - 5 pm email preferred Metadata Contact 2025-11-11 Person Akridge, Michael W michael.akridge@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5483 Metadata Contact 2012 Person DesRochers, Annette M annette.desrochers@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5461 8 am - 5 pm email preferred Originator 2012 Organization Pacific Islands Fisheries Science Center PIFSC pifsc.info@noaa.gov https://ror.org/02apffz65 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5360 https://www.pifsc.noaa.gov Pacific Island Fisheries Science Center homepage Online Resource 8:00 a.m. - 4:30 p.m. Point of Contact 2025-11-11 Person Akridge, Michael W michael.akridge@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5483 Point of Contact 2012 Person DesRochers, Annette M annette.desrochers@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5461 8 am - 5 pm email preferred Ground Condition Timor-Leste 124 127.4 -8.1 -9.4 Extent of surveys conducted by NOAA CREP in Timor-Leste in 2012 and 2013. Range 2012-10-20 2012-10-26 SBP-12-15 Time frame of surveys conducted by NOAA CREP in Timor-Leste in 2012. Range 2013-06-04 2013-06-27 SB1310 Time frame of surveys conducted by NOAA CREP in Timor-Leste in 2013. Unclassified Not applicable Not applicable NOAA Coral Reef Ecosystem Program (CREP) Data Sharing Recommendations, version 9.0 updated August 12, 2015: CREP welcomes the opportunity to collaborate on research issues contributing to the scientific basis for better management of marine ecosystems. CREP has a very diverse set of field activities that generates large volumes of data using an array of data collection protocols. The following recommendations are for your consideration as you use this data: 1) Data analyses should take all field exigencies into account. The most effective way to do this would be active collaboration with CREP principal investigators. 2) In all presentations, product releases, or publications using data generated by CREP, proper acknowledgement of both CREP and the individuals responsible for data collection is expected. Citing the DOI (if available) is preferred, a non-DOI example is listed below. 3) If you collect or generate data for the same study areas, CREP requests that you share relevant information on complimentary data collections. 4) Those receiving data are strongly urged to inform the CREP Data Management Team of any errors and discrepancies that are discovered during the course of using these data. They are further urged to bring to the attention of the Team all problems and difficulties encountered in using these data. This information is necessary in order to improve the collections and to facilitate more efficient and economical data processing and retrieval. The users are asked to supply copies of any missing data that may be located, and to provide information as to significant subsets and special aggregations of data that are developed in using the material provided. Example citation: "This publication makes use of data products provided by the Coral Reef Ecosystem Program (CREP), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), with funding support from the United States Agency for International Development (USAID). The analysis and interpretations presented here are solely that of the current authors.” Data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive None Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. Example Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Singlebeam bathymetry for Timor-Leste (2012 and 2013). NOAA's National Centers for Environmental Information. Dataset. https://www.fisheries.noaa.gov/inport/item/25307 None None https://maps.ngdc.noaa.gov/viewers/geophysics/ 2017 Organization NOAA National Centers for Environmental Information https://ror.org/04r0wrp59 Depth soundings collected during small-boat surveys around the nearshore areas of Timor-leste by the NOAA Coral Reef Ecosystem Program in Oct 2012 and June 2013. Archived with the NCEI Trackline Geophysical Data portal (search by survey/mission id SBP1215 or SBP1310). https://www.coris.noaa.gov/activities/projects/timor-leste/images/ground_truth_s.jpg Browse Graphic Map of the singlebeam bathymetry data collected around Timor-Leste by the NOAA Coral Reef Ecosystem Program. https://www.coris.noaa.gov/activities/projects/timor-leste/ Online Resource Timor-Leste project portal on the NOAA Coral Reef Information Service website where NOAA's final report for Timor-Leste and the datasets generated by NOAA CREP as part of the project can be downloaded. https://www.pifsc.noaa.gov/cred/coral_triangle_initiative.php Online Resource Information about the NOAA Coral Reef Ecosystem Program's activities in the Coral Triangle. Singlebeam bathymetry data collected using HydroLite-TM Sonarmite Echosounder Kit by Seafloor Systems, which includes: 1) SonarMite BT-TM system, portable bluetooth echo sounder 2) SonarMite Transducer w/mount 3) Trimble Pro6T GNSS Receiver 4) Recon/GPS controller 5) Survey pole w/transom mount Echosounder specs: Frequency: 200 KHz Beam width: 4 degree Ping rate: 6-Hz Depth accuracy: 1 cm /0.1% of depth, Output: NMEA, ASCII, Quality Depth range: 0.3-75 m Data from the 2012 surveys was processed in May 2013 by Julia Ehses using version 7 of the processing script. 2012 data log files saved on PIFSC network at \\PICMAKAI\General\Cruise\CruiseData\CTI_TIM_SBP1215\Trimble_Data_Logger_Downloads\ Data from the 2013 surveys was processed in December 2017 by Annette DesRochers using SonarVista - SonarMite Edit software (v6.12) from Seafloor Systems. 2013 source data files saved on PIFSC network at \\PICMAKAI\General\Cruise\CruiseData\CTI_TIM_SBP1310\Mapping\Hydrolite_Ecosounder\data_output\Timor_Leste\ Timor-Leste project on PIFSC network: \\picGoldFish\General\ProjectGroup\Coral Triangle\Timor Leste\Spatial_Data_Framework\ Depth: The HydroLite-TM Echosounder Kit, Sonarmite Echosounder has a depth accuracy of 1 cm / 0.1% of depth. 2012: The fix type, number of satellites, and HDOP are provided in the dataset. HDOP is a measure of the geometric quality of a GPS satellite configuration in the sky. HDOP is a factor in determining the relative accuracy of a horizontal position. The smaller the DOP number, the better the geometry. 2013: The type and QA is provided in the dataset. Records with a type = L indicate the depth record includes the GPS location and has a QA = 1 (NMEA tag for GPS fix). There are two 'type = D' records for every 'type = L' record (D=Depth), because the sonar pings every half second, which is more frequent than the GPS. For the 'type=D' records, the higher the QA, the better the return signal strength. QA=70 is low signal strength (not as good), QA = 130 is high return signal strength (better). The HydroLite-TM Echosounder Kit, Sonarmite Echosounder has a depth range of 0.3 m – 75 m. Obviously erroneous data based on the coordinates were cleaned from the dataset (coordinates outside the expected range for Timor-Leste; 0,0 pairs, etc). As the survey was not conducted to meet IHO standards, all users should independently analyze the dataset according to their own needs and standards to determine data usability. All components of the HydroLite-TM Echosounder Kit was tested and calibrated in advance of surveys. The singlebeam bathymetry data were lightly processed and cleaned post-mission (obviously erroneous points based on spatial coordinates were removed). In 2013, instrument to water surface offsets were applied (20 or 30 cm), and a sound velocity calibration factor was applied (1590 m/s, instead of the default 1500 m/s). Yes Unknown Yes No Unknown NCEI-CO Unknown NOAA IRC and NOAA Fisheries ITS resources and assets. Singlebeam bathymetry data collected using HydroLite-TM Echosounder Kit by Seafloor Systems, a small boat Hydro Survey System using Ohmex SonarMite echo sounder and Trimble ProXT receiver. Data was collected following procedures established by Seafloor Systems, and the HydroLite-TM system was tested and calibrated in advance of the surveys. Soundings were recorded in meters. Data collected in 2012 were processed using a different method from that used in 2013 as described in the process steps. 2012 GPS track data (NMEA) and depths were downloaded and processed/parsed in ArcGIS using a customized track processing script written in Python. A time offset was applied to capture local time in Timor-Leste in addition to Greenwich Mean Time (GMT). The processed/parsed data were exported to an Esri geodatabase and erroneous data were cleaned in ArcGIS. The cleaned data were exported to CSV to be archived. Person Ehses, Julia julia.ehses@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5447 2013 During 2013 surveys, the system was calibrated for sound velocity. A log was kept during the surveys, including the offset from the instrument to the water surface (20 or 30 cm, depending on the vessel) and the sound velocity calibration status. The SonarMite data (.SOM) was downloaded from the instrument and imported into SonarVista, offsets and calibration were applied, obviously erroneous data based on the coordinates were removed, and the processed data were exported to CSV format. The exported data are considered 'lightly processed' and should be further inspected and cleaned before use. Person DesRochers, Annette M annette.desrochers@noaa.gov 1845 Wasp Blvd. Honolulu HI 96818 USA (808)725-5461 8 am - 5 pm 50856 Entity 46159 Data Set Cross Reference 46160 Data Set Cross Reference 46161 Data Set Cross Reference 46162 Data Set Cross Reference 32998 Data Set Cross Reference 29128 Data Set Cross Reference 46150 Data Set Cross Reference 46163 Data Set Cross Reference 46164 Data Set Cross Reference 46151 Data Set Cross Reference gov.noaa.nmfs.inport:25307 Troy Kanemura 2015-06-09T16:43:56 SysAdmin InPortAdmin 2026-03-04T19:17:22 2018-04-27 Pacific Islands Fisheries Science Center PIFSC 1845 Wasp Blvd. Honolulu HI 96818 USA 808-725-5300 https://www.pifsc.noaa.gov 8:00 a.m. - 4:30 p.m. 1001 Public No No 2018-04-27 1 Year 2019-04-27