Short Citation:
Pacific Islands Fisheries Science Center, 2021: WorldView-2 Satellite Image Inventory for Timor-Leste, https://www.fisheries.noaa.gov/inport/item/46151.

Item Identification

Title: WorldView-2 Satellite Image Inventory for Timor-Leste
Short Name: Timor: WV-2 Satellite Image Inventory
Status: Completed
Publication Date: 2017
Abstract:

Inventory of satellite images from DigitalGlobe’s WorldView-2 satellite purchased by the NOAA Coral Reef Ecosystem Program for Timor-leste from Jan 26, 2010 to August 10, 2014. Images were acquired for purposes of deriving seafloor depths and benthic habitat classes for the nearshore waters (< 20m depths) of Timor-leste. In addition to the inventory, the dataset includes the regions of interest (ROI) defined by NOAA used to define the geographic areas to acquire the satellite images from DigitalGlobe, the boundary extent of the available images within each ROI, and the footprint (extent) of each image. The data within each satellite image is clipped to the ROI. The ROI, boundary, and footprint files are provided in shapefile format, and the inventory is provided as a text file, which corresponds to the footprints shapefile.

Purpose:

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 satellite image inventory described herein resulted from the first activity to conduct satellite mapping for the nearshore waters around Timor-Leste.

Other Citation Details:

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.

Keywords

Theme Keywords

Thesaurus Keyword
CoRIS Discovery Thesaurus Geographic Information > Habitats
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Coastal Habitat
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > GIS
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Base map > Hyper/multispectral Imagery
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Base map > Satellite Imagery
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing
CoRIS Theme Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > WorldView-2
CoRIS Theme Thesaurus EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
ISO 19115 Topic Category 010
ISO 19115 Topic Category 014
ISO 19115 Topic Category imageryBaseMapsEarthCover
ISO 19115 Topic Category Oceans
NODC DATA TYPES THESAURUS POSITION - GEOGRAPHIC
NODC OBSERVATION TYPES THESAURUS GIS product
NODC OBSERVATION TYPES THESAURUS satellite photography
NODC PROJECT NAMES THESAURUS CORAL REEF STUDIES
NODC PROJECT NAMES THESAURUS Coral Triangle Initiative
NODC SUBMITTING INSTITUTION NAMES THESAURUS US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division; Coral Reef Ecosystem Program
None Coral Reef Ecosystem Division
None Coral Reef Ecosystem Program
None CRED
None CREP
None Pacific Islands Fisheries Science Center
None PIFSC
None United States Agency for International Development
None USAID

Spatial Keywords

Thesaurus Keyword
CoRIS Place Thesaurus COUNTRY/TERRITORY > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
CoRIS Place Thesaurus OCEAN BASIN > Indian Ocean > Timor Sea > Democratic Republic of Timor-Leste (East Timor) (09S126E0001)
NODC SEA AREA NAMES THESAURUS Indian Ocean
NODC SEA AREA NAMES THESAURUS Timor Sea
None Atauro
None Baucau
None Bobonaro
None Dili
None Jaco
None Lautem
None Liquica
None Manatuto
None Manufahi
None Oecusse
None Timor
None Timor-Leste
None Vila MPA

Physical Location

Organization: Pacific Islands Fisheries Science Center
City: Honolulu
State/Province: HI
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Mixed: GIS shapefiles and CSV
Maintenance Frequency: None Planned
Data Presentation Form: Map (digital)
Entity Attribute Overview:

The Region of Interest (ROI) and Boundary shapefiles contain information about the four regions in Timor-leste (north and south shores of mainland Timor-leste, the island of Atauro, and the district of Oecusse to the west of mainland Timor-leste). The footprint shapefile represents the extent of each satellite image. The inventory file (CSV) contains information about each satellite image, including the purchase/acquisition attributes, type of imagery, center points in UTM, azimuth and elevation of the sun and satellite sensor, cloud cover, and off nadir. It also includes whether the image was georeferenced by NOAA, and used to derive depths and habitat classes. The inventory files corresponds to the footprints shapefil.

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.

Data Set Credit: PIFSC Coral Reef Ecosystem Program and funded by the United States Agency for International Development

Support Roles

Data Steward

CC ID: 705030
Date Effective From: 2012
Date Effective To:
Contact (Person): Acoba, Tomoko S
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: tomoko.acoba@noaa.gov
Phone: (808)725-5448
Business Hours: 8:00 am - 4:00 pm HST
Contact Instructions:

email preferred

Distributor

CC ID: 705031
Date Effective From: 2017
Date Effective To:
Contact (Organization): National Centers For Environmental Information (Boulder) (NCEI-Boulder)
Address: E/GC 325 Broadway
Boulder, CO 80305-3328
Phone: 303-497-6826
URL: https://www.ngdc.noaa.gov/

Distributor

CC ID: 705032
Date Effective From: 2012
Date Effective To: 2017
Contact (Person): DesRochers, Annette M
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: annette.desrochers@noaa.gov
Phone: (808)725-5461
Business Hours: 8 am - 5 pm
Contact Instructions:

email preferred

Metadata Contact

CC ID: 705033
Date Effective From: 2012
Date Effective To:
Contact (Person): DesRochers, Annette M
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: annette.desrochers@noaa.gov
Phone: (808)725-5461
Business Hours: 8 am - 5 pm
Contact Instructions:

email preferred

Originator

CC ID: 705034
Date Effective From: 2012
Date Effective To:
Contact (Organization): Pacific Islands Fisheries Science Center (PIFSC)
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Phone: 808-725-5300
URL: http://www.pifsc.noaa.gov
Business Hours: 8:00 a.m. - 4:30 p.m.

Point of Contact

CC ID: 705035
Date Effective From: 2012
Date Effective To:
Contact (Person): DesRochers, Annette M
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: annette.desrochers@noaa.gov
Phone: (808)725-5461
Business Hours: 8 am - 5 pm
Contact Instructions:

email preferred

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Description:

Timor-Leste

Extent Group 1 / Geographic Area 1

CC ID: 705037
W° Bound: 124
E° Bound: 127.5
N° Bound: -8
S° Bound: -9.5
Description

Timor-Leste

Extent Group 1 / Time Frame 1

CC ID: 705038
Time Frame Type: Range
Start: 2010-01-26
End: 2014-08-10
Description:

Time span of satellite images acquired from DigitalGlobe, Inc.

Access Information

Security Class: Unclassified
Security Classification System:

Not applicable

Security Handling Description:

Not applicable

Data Access Policy:

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 Access Procedure:

Data can be accessed online via the NOAA National Centers for Environmental Information (NCEI) Ocean Archive

Data Access Constraints:

WorldView-2 imagery cannot be publicly redistributed per the license agreement with DigitalGlobe. Contact the NOAA Coral Reef Ecosystem Program for specific questions about the source imagery for TImor-leste at nmfs.pic.credinfo@noaa.gov.

Data 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). WorldView-2 Satellite Image Inventory for Timor-Leste. NOAA's National Center for Environmental Information. Dataset. https://www.fisheries.noaa.gov/inport/item/46151

Metadata Access Constraints:

None

Metadata Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 705041
Download URL: http://accession.nodc.noaa.gov/0169504
Distributor: National Centers For Environmental Information (Boulder) (NCEI-Boulder) (2017 - Present)
File Name: WV-2_Boundary_Timor.shp
Description:

The boundary (extent) of the available WorldView-2 satellite images purchased by NOAA for each region in TImor-leste, including the north and south coastlines, the Island of Atauro, and the district of Oecusse.

File Type: shapefile

Distribution 2

CC ID: 705042
Download URL: http://accession.nodc.noaa.gov/0169504
Distributor: National Centers For Environmental Information (Boulder) (NCEI-Boulder) (2017 - Present)
File Name: WV-2_Image_Footprint_Timor.shp
Description:

The footprint (extent) for each WorldView-2 satellite image purchased by NOAA for Timor-leste within the boundary/region of interest.

File Type: shapefile

Distribution 3

CC ID: 705554
Download URL: http://accession.nodc.noaa.gov/0169504
Distributor: National Centers For Environmental Information (Boulder) (NCEI-Boulder) (2017 - Present)
File Name: WV-2_Image_Inventory_Timor.csv
Description:

The inventory includes attributes about the WorldView-2 satellite images purchased by NOAA for Timor-leste, and corresponds to the footprints shapefile.

File Type: csv (comma-separated values)

Distribution 4

CC ID: 705040
Download URL: http://accession.nodc.noaa.gov/0169504
Distributor: National Centers For Environmental Information (Boulder) (NCEI-Boulder) (2017 - Present)
File Name: WV-2_ROI_Timor.shp
Description:

The regions of interest (ROI) were used by NOAA to define the desired geographic areas in Timor-leste to purchase the WorldView-2 satellite imagery from DigitalGlobe. Images were acquired along the coasts of the four identified regions of interest (Atauro, North shore, Oecusse, and South shore).The ROI was used by DigitalGlobe to clip the data within each satellite image.

File Type: shapefile

URLs

URL 1

CC ID: 705043
URL: https://www.coris.noaa.gov/activities/projects/timor-leste/
URL Type:
Online Resource
Description:

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.

URL 2

CC ID: 705044
URL: https://www.pifsc.noaa.gov/cred/coral_triangle_initiative.php
URL Type:
Online Resource
Description:

Information about the NOAA Coral Reef Ecosystem Program's activities in the Coral Triangle.

URL 3

CC ID: 705045
URL: https://www.coris.noaa.gov/activities/projects/timor-leste/images/image_catalog_s.jpg
URL Type:
Browse Graphic
The WorldView-2 satellite image inventory for Timor-Leste, showing the extents of each satellite...
File Resource Format: jpg
Description:

The WorldView-2 satellite image inventory for Timor-Leste, showing the extents of each satellite image and the regions of interest.

Technical Environment

Description:

All satellite images associated with each region of interest (ROI) in Timor-leste are stored in a mosaic dataset in an ESRI file geodatabase. Within each mosaic dataset is the boundary (extent) of the available images for each region (exported to a shapefile) and the footprint for each image within the boundary (exported to shapefile). Within GIS, the footprints can be used to quickly identify the image files that fall within a geographic area of interest. The inventory, extracted from the footprints, provides information about which satellite images are available and where, as well as information about each image. The source mosaic dataset geodatbase is not useful unless the user has direct access to the satellite images. Contact NOAA for more information if access to the imagery is required.

Data Quality

Accuracy:

The location information for some of the satellite images was inadequate; therefore, the images did not align properly with each other or with other data. The images were spatially adjusted (georeferenced) to align with ArcGIS basemaps—provided by ESRI with ArcGIS products (http://www.esri.com/data/basemaps). The georeferencing step was performed using the georeferencing tools in ArcGIS 10.X desktop software.

Analytical Accuracy:

The pixel values of the WorldView-2 satellite images provided by DigitalGlobe are digital numbers (0-255), which have not been calibrated into physically meaningful units (i.e., solar radiance). The digital numbers must therefore be converted to capture the radiance at the satellite sensor using a calibration formula (Updike and Comp 2010). The satellite sensor is routinely calibrated, and thus the coefficients provided by DigitalGlobe (in the metadata files) are unique to each image. The conversion was conducted in ENVI (Environment for Visualizing Images) image analysis software provided by Harris Geospatial Solutions (http://www.harrisgeospatial.com/ProductsandTechnology/Software/ENVI.aspx).

Completeness Report:

WorldView-2 satellite imagery was acquired for nearshore waters along the coast of Timor-Leste from Jan 26 2010 to Aug 10, 2014. Complete coverage of the coastline with WorldView-2 satellite images was achieved. However, some images contain 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. Multiple overlapping images of some portions of the shoreline enabled sections of different images to be extracted and used to patch holes in other images in some cases, in a process known as "cloud patching." This process enabled more complete coverage to be developed for the depths and/or habitats.

Conceptual Consistency:

Pre-processing of all WorldView-2 satellite images was performed using the same methods to georeference, convert the digital numbers, mask out areas, and remove sun glint.

Quality Control Procedures Employed:

The satellite image inventory was inspected following completion of the final products, and prior to delivery of the final products to the in-country partners.

Data Management

Have Resources for Management of these Data Been Identified?: Yes
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: Yes
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: Unknown
Actual or Planned Long-Term Data Archive Location: NCEI-CO
Approximate Delay Between Data Collection and Archiving: Unknown
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

NOAA IRC and NOAA Fisheries ITS resources and assets.

Lineage

Lineage Statement:

The image catalog is stored as an ESRI file geodatabase (not available) and serves two purposes: 1) it is an inventory of all the satellite images purchased by NOAA for each region of interest (ROI) in Timor-Leste, and 2) it contains features associated with the images, including the ROI, the boundary extent of the available images within each ROI, and the footprints of each image (exported as shapefiles and publicly accessible). Within GIS, the footprints can be used to quickly identify the image files that fall within a geographic area of interest.

Furthermore, the inventory (extracted from the footprints shapefile) provides metadata for the imagery, and also indicates if the images were georeferenced and used to derive depths or habitat classes.

Sources

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.

CC ID: 705428
Contact Type: Organization
Contact Name: Pacific Islands Fisheries Science Center, PIFSC
Publish Date: 2017-06-21
Citation URL: https://doi.org/10.7289/V5/SP-PIFSC-17-002
Source Contribution:

The methods to process and use the WorldView-2 satellite imagery for Timor-leste are described in Appendix C and Chapter 5, and findings/results are summarized in Chapter 2.

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) WV-2_image_inventory

Related Items

Item Type Relationship Type Title
Data Set (DS) Cross Reference 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
Data Set (DS) Cross Reference Benthic images collected at coral reef sites in Timor-Leste from 2012-2014
Data Set (DS) Cross Reference Benthic percent cover derived from analysis of benthic images collected at coral reef sites in Timor-Leste in 2013 and 2014
Data Set (DS) Cross Reference 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
Data Set (DS) Cross Reference Coral reef fish biomass and benthic cover data from Timor-Leste in June 2013
Data Set (DS) Cross Reference Depth soundings from a single beam echo sounder collected around the nearshore areas of Timor-Leste in 2012 and 2013
Data Set (DS) Cross Reference Nearshore Benthic Habitats of Timor-Leste Derived from WorldView-2 Satellite Imagery
Data Set (DS) Cross Reference Satellite-derived bathymetry for nearshore benthic habitats in Timor-Leste
Data Set (DS) Cross Reference Water chemistry at coral reef sites in Timor-Leste from discrete surface and bottom water samples collected in 2013 and 2014
Data Set (DS) Cross Reference Water temperature data from Subsurface Temperature Recorders (STRs) deployed at coral reef sites in Timor-Leste from 2012 to 2014

Catalog Details

Catalog Item ID: 46151
Metadata Record Created By: Annette M DesRochers
Metadata Record Created: 2017-06-01 12:10+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2020-08-03 16:13+0000
Metadata Record Published: 2018-01-12
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2019-01-13