gov.noaa.nmfs.inport:46150 eng UTF8 dataset GIS dataset of raster 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 DesRochers, Annette M (808)725-5461 1845 Wasp Blvd. Honolulu HI 96818 USA annette.desrochers@noaa.gov 8 am - 5 pm email preferred pointOfContact Akridge, Michael W (808)725-5483 1845 Wasp Blvd. Honolulu HI 96818 USA michael.akridge@noaa.gov pointOfContact 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) Satellite-derived bathymetry for nearshore benthic habitats in Timor-Leste Timor: WV-2 Bathymetry 2017 publication NOAA/NMFS/EDM 46150 https://www.fisheries.noaa.gov/inport/item/46150 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://dg-cms-uploads-production.s3.amazonaws.com/uploads/document/file/35/DG-8SPECTRAL-WP_0.pdf WWW:LINK-1.0-http--link Citation URL DigitalGlobe. 2010. The Benefits of the Eight Spectral Bands of WorldView-2. download https://www.pifsc.noaa.gov/cred/coral_triangle_initiative.php WWW:LINK-1.0-http--link Citation URL Information about the NOAA Coral Reef Ecosystem Program's activities in the Coral Triangle. download https://www.coris.noaa.gov/activities/projects/timor-leste/ WWW:LINK-1.0-http--link Citation URL 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. download https://dg-cms-uploads-production.s3.amazonaws.com/uploads/document/file/98/WorldView2-DS-WV2-rev2.pdf WWW:LINK-1.0-http--link Citation URL WorldView-2 Data Sheet download mapDigital 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. Bathymetric data derived from multispectral, high-resolution (2 m) satellite imagery from DigitalGlobe’s WorldView-2 satellite to provide near complete coverage of nearshore terrain along the northern coastline of Timor-Leste, including the district of Oecusse to the west of mainland Timor-Leste and Atauro Island. Satellite images acquired by the NOAA Coral Reef Ecosystem Program (CREP) for the region are from Feb 9, 2010 to October 2, 2013. Methods used by CREP to estimate depths from the WorldView imagery were adapted from instructions developed by Kyle Hogrefe for using IKONOS imagery to derive seafloor elevations in optically clear water (Ehses and Rooney 2015). Bathymetry values shallower than ~20 m were derived by gauging the relative attenuation of coastal, blue, green and yellow spectral radiance as a function of depth. A multiple linear regression analysis of coastal, blue, green and yellow band spectral values against in-situ depth determined the variables of y-intercept, coastal, blue, green and yellow slope values. The variables for each band were then used in a multivariate slope intercept equation to derive depth over the imagery. Variables and combinations of the bands were adjusted to improve the statistical accuracy and spatial coverage of the final derived bathymetry product. Digital image processing to derive depths was conducted with ENVI, and editing and integration was performed using Esri's ArcGIS. The method assumes uniform water clarity but deviations from that condition made extraction difficult in water depths greater than 20 m. Results show that biotic material, or sediment in the water column skewed results shallower if the material has a high albedo and deeper if the material has a low albedo. 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 bathymetry data described herein resulted from the first activity to conduct satellite mapping for the nearshore waters around Timor-Leste. PIFSC Coral Reef Ecosystem Program and funded by the United States Agency for International Development completed DesRochers, Annette M (808)725-5461 1845 Wasp Blvd. Honolulu HI 96818 USA annette.desrochers@noaa.gov 8 am - 5 pm email preferred pointOfContact Akridge, Michael W (808)725-5483 1845 Wasp Blvd. Honolulu HI 96818 USA michael.akridge@noaa.gov pointOfContact Akridge, Michael W (808)725-5483 1845 Wasp Blvd. Honolulu HI 96818 USA michael.akridge@noaa.gov custodian Acoba, Tomoko S (808)725-5448 1845 Wasp Blvd. Honolulu HI 96818 USA tomoko.acoba@noaa.gov 8:00 am - 4:00 pm HST email preferred custodian notPlanned https://www.coris.noaa.gov/activities/projects/timor-leste/images/bathymetry.jpg An example of the bathymetry data generated for Timor-Leste from WorldView-2 satellite imagery. JPG Geographic Information > Bathymetry theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > GIS EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Base map EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > WorldView-2 EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs theme CoRIS Theme Thesaurus BATHYMETRY water depth theme NODC DATA TYPES THESAURUS GIS product derived products theme NODC OBSERVATION TYPES THESAURUS CORAL REEF STUDIES Coral Triangle Initiative theme NODC PROJECT NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program theme NODC SUBMITTING INSTITUTION NAMES THESAURUS COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001) OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001) place CoRIS Place Thesaurus Indian Ocean Timor Sea place NODC SEA AREA NAMES THESAURUS SEA FLOOR stratum Global Change Master Directory CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program PIFSC Pacific Islands Fisheries Science Center Pseudobathymetry USAID United States Agency for International Development derived depths estimated depths seafloor elevation theme Atauro Baucau Bobonaro Dili Jaco Lautem Liquica Manatuto Oecusse Timor Timor-leste Vila MPA 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 Timor Leste project InPort otherRestrictions Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Satellite-derived bathymetry for nearshore benthic habitats in Timor-Leste [Data Date Range], https://www.fisheries.noaa.gov/inport/item/46150. 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 Coral Reef Ecosystem Program (CREP) when using the data. Example Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Satellite-derived bathymetry for nearshore benthic habitats in Timor-Leste. NOAA's National Centers for Environmental Information. Dataset. https://www.fisheries.noaa.gov/inport/item/46150 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 Assessing cryptic reef diversity of colonizing marine invertebrates using Autonomous Reef Monitoring Structures (ARMS) deployed at coral reef sites in Timor-Leste from 2012 to 2014 NOAA/NMFS/EDM 46159 crossReference Benthic images collected at coral reef sites in Timor-Leste from 2012-2014 NOAA/NMFS/EDM 46160 crossReference Benthic percent cover derived from analysis of benthic images collected at coral reef sites in Timor-Leste in 2013 and 2014 NOAA/NMFS/EDM 46161 crossReference Calcification Rates of Crustose Coralline Algae (CCA) Derived from Calcification Accretion Units (CAUs) Deployed at Coral Reef Sites in Timor-Leste from 2012 to 2014 NOAA/NMFS/EDM 46162 crossReference Coral reef fish biomass and benthic cover data from Timor-Leste in June 2013 NOAA/NMFS/EDM 32998 crossReference Depth soundings from a single beam echo sounder collected around the nearshore areas of Timor-Leste in 2012 and 2013 NOAA/NMFS/EDM 25307 crossReference Nearshore Benthic Habitats of Timor-Leste Derived from WorldView-2 Satellite Imagery NOAA/NMFS/EDM 29128 crossReference Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected in 2013 and 2014 NOAA/NMFS/EDM 46163 crossReference Water temperature data from Subsurface Temperature Recorders (STRs) deployed at coral reef sites in Timor-Leste from 2012 to 2014 NOAA/NMFS/EDM 46164 crossReference WorldView-2 Satellite Image Inventory for Timor-Leste NOAA/NMFS/EDM 46151 crossReference NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 46150 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/46150.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 elevation ENVI was used to process the satellite images, and maps and data were developed using ArcGIS. Spatial reference was UTM Zone 51S. Timor-Leste project on PIFSC network: \\picGoldFish\General\ProjectGroup\Coral Triangle\Timor Leste\Spatial_Data_Framework\ Timor-Leste 124 127.4 -9.4 -8.1 The northern coastline of mainland Timor-leste, as well as the coastlines of Oecusse district and Atauro Island. Time span of satellite images acquired from DigitalGlobe, Inc. used for deriving bathymetry | Currentness: Ground Condition 2010-02-09 2013-10-02 The method to derive depths from WorldView-2 satellite imagery is documented in the following NOAA publication: Ehses, J. S., and J. J. Rooney. 2015. Depth derivation using multispectral WorldView-2 satellite imagery. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM-NMFS-PIFSC-46, 24 p. doi:10.7289/V5668B40 false eng false Data Table WV2_Bathy_TIMOR 2018-01-11 publication GeoTIFF PDF - Adobe Portable Document Format Text (Unstructured) 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 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. distributor https://accession.nodc.noaa.gov/0169504 WWW:LINK-1.0-http--link Bathymetry_Timor.zip GeoTiff raster bathymetry data for nearshore waters of Timor Leste, derived from WorldView-2 satellite imagery. The bathymetry data are organized by region (north shore, Atauro Island, and Oecusse), and each region contains 1) the individual final bathymetry files (one geoTiff for each satellite image), 2) a projected (UTM_Zone_51S) bathymetry mosaic for the region, and 3) an unprojected (WGS84) mosaic for the region. The mosaics are also in geoTiff format. An ESRI layer file is included within each region's subfolder for ease of displaying the geoTiffs in ESRI's ArcGIS software. The symbology is based on the VALUE field. download https://www.pifsc.noaa.gov/library/pubs/tech/NOAA_Tech_Memo_PIFSC_46.pdf WWW:LINK-1.0-http--link NOAA_Tech_Memo_PIFSC_46.pdf Depth Derivation Using Multispectral WorldView-2 Satellite Imagery, a NOAA tech memo published by the Pacific Islands Fisheries Science Center. The Tech Memo is also available in the NOAA Repository. download https://accession.nodc.noaa.gov/0169504 WWW:LINK-1.0-http--link README.ZIP README folder contains the README.txt files for each final bathymetry geoTiff produced for the three regions (north shore, Atauro Island, and Oecusse) of Timor-Leste. Each README.txt file contains specific details for each geoTiff generated. download dataset Accuracy The program Microsoft Excel was used for the multiple linear regression analysis to provide original variables for depth derivation. The multivariate slope intercept formula used to derive depth was Depth=Yint+(Mcoastal)(Xcoastal)+(Mblue)(Xblue)+(Mgreen)(Xgreen)+(Myellow)(XYellow). Analytical Accuracy Multiple linear regression analysis using subsampled athymetry validation points. Completeness Report Nearshore waters along the entire coastline of Timor-Leste have complete coverage of WorldView-2 satellite imagery. There are, however, holes in derived depths resulting from areas of high water column turbidity, clouds, whitewater, etc. that were masked out of the analyses due to a lack of reliable imagery of the seafloor for those areas. No bathymetry was generated for the southern coastline of Timor-leste because no depth data were available to calibrate the imagery and to subsequently validate the depths. Conceptual Consistency Pre-processing of all WorldView-2 satellite images was performed using the same methods, to produce a rectified, deglinted image, with radiance and depth invariant data layers. Bathymetry data were derived for nearshore waters along the northern coastline of Timor-Leste, and the coastlines of Oecusse district and Atauro Island, from WorldView-2 satellite imagery following methods developed by Ehses and Rooney (2015). Satellite imagery was collected by the WorldView-2 commercial Earth observation satellite owned by DigitalGlobe. WorldView-2 provides panchromatic imagery of .46-meter resolution, and eight-band multispectral imagery with 1.84 meter (6 foot 0 inch) resolution. Image pre-processing steps are described in the NOAA Technical Memorandum "Depth Derivation Using Multispectral WorldView-2 Satellite Imagery". Pre-processing of all WorldView-2 satellite images was performed using the same methods, to produce a deglinted image, radiance and depth invariant data layers. Pacific Islands Fisheries Science Center 808-725-5360 pifsc.info@noaa.gov processor The available ground-truth data (in-situ single beam depth data) was separated into two subsets; one subset was used to develop the multivariate slope intercept equation, and the second subset was used for the error analyses. The deglinted values of coastal, blue, green, and yellow bands were extracted in ArcGIS using the ground truth data set aside for the equation. Multiple linear regression analysis of the extracted deglinted values and ground-truth data were performed in Excel and the multivariate slope intercept equation from the analysis was applied to the deglinted image in ENVI. An error analysis was performed comparing the calculated depths with the second subset of the ground truth data. Depending on the results of the error analysis (the level of agreement between the derived data and the ground truth data), different formulas were tested using different combinations of the color bands to improve the results (i.e., different color bands from the satellite imagery were inserted into differing formulas to calculate the derived bathymetric data). The derived bathymetry values that are out of range based on the error analysis were clipped out in ArcGIS. A readme text file (README_FILE.txt) was prepared for each image used that catalogs the specific details for each set of derived depths, including the source image, processor names, dates, ground-truth data details, formulas, slope values, coefficients, and process steps. The complete methodology followed to derive depths is described in the final report for Timor-Leste prepared by the NOAA Coral Reef Ecosystem Program. Pacific Islands Fisheries Science Center 808-725-5360 pifsc.info@noaa.gov processor Ehses , J.S., and J.J. Rooney. 2015. Depth derivation using multispectral WorldView-2 satellite imagery. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM-NMFS-PIFSC-46, 24 p. 2015-06-17 publication Pacific Islands Fisheries Science Center, PIFSC https://www.pifsc.noaa.gov/library/pubs/tech/NOAA_Tech_Memo_PIFSC_46.pdf WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information Source Contribution: The methods to derive depths from WorldView-2 satellite imagery for Timor-leste are described in Appendix C, and findings/results are summarized in Chapter 2. The data is presented in a 50+ page map book in Appendix D. PIFSC. 2017. Interdisciplinary baseline ecosystem assessment surveys to inform ecosystem-based management planning in Timor-Leste: Final Report. NOAA Pacific Islands Fisheries Science Center, PIFSC Special Publication, SP-17-02, 234p. 2017-06-21 publication Pacific Islands Fisheries Science Center, PIFSC https://doi.org/10.7289/V5/SP-PIFSC-17-002 WWW:LINK-1.0-http--link Source Citation URL Source Citation URL information otherRestrictions otherRestrictions Access Constraints: None | Use Constraints: None