Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific
Data Set (DS) | Pacific Islands Fisheries Science Center (PIFSC)GUID: gov.noaa.nmfs.inport:35021 | Updated: October 3, 2024 | Published / External
Summary
Short Citation
Pacific Islands Fisheries Science Center, 2025: Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific, https://www.fisheries.noaa.gov/inport/item/35021.
Full Citation Examples
Substrate, Hard bottom vs. Soft bottom: This is a preliminary product. Cell values reflect whether the seafloor is hard bottom or soft bottom based on an unsupervised classification run using ArcGIS software with the Spatial Analyst extension. The classifications are based on backscatter, bathymetry, acoustic derivatives and optical data.
Please see the individual metadata records for additional information on sources used and data processing steps for each location where data are available.
Distribution Information
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Ofu and Olosega islands that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 40-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Rose Atoll that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Rose Atoll that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 40-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Swains that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Ta'u that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom (Simrad em3002d data)---(TIF), maps (PDF and JPG), and metadata (TXT) specifically for Tutuila that includes details about the methods, data quality, sources, etc.
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom (Reson 8101 Data)---(TIF), maps (PDF and JPG), and metadata (TXT) specifically for Tutuila that includes details about the methods, data quality, sources, etc.
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Apra Harbor, Guam that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Guam that includes specific details for the island about the methods, data quality, sources, etc.
-
Zip file containing 10-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Pagan that includes specific details for the island about the methods, data quality, sources, etc.
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Saipan that includes specific details for the island about the methods, data quality, sources, etc.
-
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Tinian that includes specific details for the island about the methods, data quality, sources, etc.
-
Zip file containing substrate data---Hard bottom vs. Soft bottom derived from WorldView-2 satellite image based bathymetry---(ASC), maps (PDF and JPG), and metadata (TXT) specifically for Ni'ihau that includes specific details for the island about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing substrate data---Hard bottom vs. Soft bottom derived from multibeam bathymetry---(ASC), maps (PDF and JPG), and metadata (TXT) specifically for Ni'ihau that includes specific details for the island about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster).
-
Zip file containing substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for French Frigate Shoals that includes specific details about the methods, data quality, sources, etc.
None
These data are not to be used for navigation purposes.
Please cite PIFSC Ecosystem Sciences Division(ESD) when using the data.
Suggested citation:
Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, 2019: Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific, https://www.fisheries.noaa.gov/inport/item/35021.
Controlled Theme Keywords
elevation
Child Items
No Child Items for this record.
Contact Information
Point of Contact
Annette M DesRochers
annette.desrochers@noaa.gov
(808)725-5461
Metadata Contact
Annette M DesRochers
annette.desrochers@noaa.gov
(808)725-5461
Extents
-156.100504° W,
-155.822838° E,
20.061727° N,
19.772429° S
West Hawaii
-160.292237° W,
-160.01701° E,
22.056916° N,
21.729768° S
Niihau
2012-06-09 - 2012-06-29
West Hawaii multibeam bathymetry collection dates. Rugosity values were derived from this data.
2005-06-13 - 2005-07-08
Niihau multibeam bathymetry collection dates. Rugosity values are derived from this data.
Item Identification
| Title: | Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific |
|---|---|
| Short Name: | Hard Soft Substrate: Pacific (backscatter h/s) |
| Status: | Completed |
| Publication Date: | 2016 |
| Abstract: |
Substrate, Hard bottom vs. Soft bottom: This is a preliminary product. Cell values reflect whether the seafloor is hard bottom or soft bottom based on an unsupervised classification run using ArcGIS software with the Spatial Analyst extension. The classifications are based on backscatter, bathymetry, acoustic derivatives and optical data. Please see the individual metadata records for additional information on sources used and data processing steps for each location where data are available. |
| Purpose: |
The hard and soft seafloor map is being used to improve sampling techniques for long-term ecosystem monitoring, to guide future ground-truthing operations and to identify coral-rich and species specific environments. This is a preliminary product and the methods used to generate the map are currently being evaluated for their accuracy. |
| Notes: |
These are the original hard-soft substrate maps produced primarily from backscatter data (prior to the ESA and West Hawaii/West Maui projects). This record does not include the hard-soft substrate maps produced for those two projects. |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| ISO 19115 Topic Category |
elevation
|
| UNCONTROLLED | |
| CoRIS Discovery Thesaurus | Geographic Information > Bathymetry |
| CoRIS Discovery Thesaurus | Geographic Information > Habitats |
| CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat |
| CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat |
| CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > geomorphology Mapping |
| CoRIS Theme Thesaurus | EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Mapping > Habitat Mapping |
| CoRIS Theme Thesaurus | earth science > oceans > bathymetry/seafloor topography > bathymetry |
| CoRIS Theme Thesaurus | earth science > oceans > bathymetry/seafloor topography > Hard Soft Substrate |
| CoRIS Theme Thesaurus | EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs |
| CRCP Project | 467 |
| CRCP Project | Benthic Habitat Mapping and Characterization in the Pacific Islands Region |
| CRCP Project | Mapping and EcoSpatial Information Products to Support Coral Reef Ecosystem Management in the Pacific Islands Region |
| NODC DATA TYPES THESAURUS | Hard Soft Substrate |
| NODC OBSERVATION TYPES THESAURUS | surface measurements |
| NODC PROJECT NAMES THESAURUS | Coral Reef Conservation Program |
| 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 |
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Hawaii Island (19N155W0003) |
| CoRIS Place Thesaurus | COUNTRY/TERRITORY > United States of America > Hawaiian Islands (21N157W0027) |
| CoRIS Place Thesaurus | OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands (21N157W0027) |
| CoRIS Place Thesaurus | OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii Island > Hawaii Island (19N155W0003) |
| NODC SEA AREA NAMES THESAURUS | Equatorial Pacific Ocean |
| NODC SEA AREA NAMES THESAURUS | Marianas Trench Marine National Monument |
| NODC SEA AREA NAMES THESAURUS | North Pacific Ocean |
| NODC SEA AREA NAMES THESAURUS | NW Pacific |
| NODC SEA AREA NAMES THESAURUS | Pacific Remote Islands Marine National Monument |
| NODC SEA AREA NAMES THESAURUS | Papahanaumokuakea Marine National Monument |
| NODC SEA AREA NAMES THESAURUS | Rose Atoll Marine National Monument |
| NODC SEA AREA NAMES THESAURUS | South Pacific Ocean |
| None | American Samoa |
| None | CNMI |
| None | Commonwealth of the Northern Mariana Islands |
| None | Guam |
| None | Main Hawaiian Islands |
| None | Mariana Islands |
| None | Marianas |
| None | MHI |
| None | Northwestern Hawaiian Islands |
| None | NWHI |
| None | Pacific Remote Island Areas |
| None | PRIA |
| None | West Hawaii |
Stratum Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| Global Change Master Directory | SEA FLOOR |
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: | GIS dataset of raster files |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Map (digital) |
| Entity Attribute Overview: |
The Hard vs Soft substrate designation is applied by performing an unsupervised classification on bathymetry and, where available, backscatter data using the Iso Cluster classification tool in ArcGIS. This classification produces two classes, representing hard and soft substrate. |
| 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 |
Support Roles
Data Steward
| Date Effective From: | 2015 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Suka, Rhonda |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | rhonda.suka@noaa.gov |
| Phone: | (808)725-5494 |
| Contact Instructions: |
Email preferred |
Distributor
| Date Effective From: | 2016 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | NOAA National Centers for Environmental Information (NCEI) |
| Email Address: | ncei.info@noaa.gov |
| URL: | NCEI Contact Information |
Metadata Contact
| Date Effective From: | 2010 |
|---|---|
| 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
| Date Effective From: | 2008 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | NOAA Coral Reef Conservation Program (CRCP) |
| Address: |
1305 East West Highway 10th Floor Silver Spring, MD 20910-3281 |
| Phone: | (301) 713-3155 |
| URL: | https://coralreef.noaa.gov |
Originator
| Date Effective From: | 2008 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | Pacific Islands Fisheries Science Center (PIFSC) |
| Address: |
1845 Wasp Blvd. Honolulu, HI 96818 USA |
| Email Address: | pifsc.info@noaa.gov |
| Phone: | 808-725-5360 |
| URL: | https://www.pifsc.noaa.gov |
| Business Hours: | 8:00 a.m. - 4:30 p.m. |
Point of Contact
| Date Effective From: | 2016 |
|---|---|
| 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: |
Main Hawaiian Islands, including... West Hawaii and Niihau. |
|---|
Extent Group 1 / Geographic Area 1
| W° Bound: | -156.100504 | |
|---|---|---|
| E° Bound: | -155.822838 | |
| N° Bound: | 20.061727 | |
| S° Bound: | 19.772429 | |
| Description |
West Hawaii |
|
Extent Group 1 / Geographic Area 2
| W° Bound: | -160.292237 | |
|---|---|---|
| E° Bound: | -160.01701 | |
| N° Bound: | 22.056916 | |
| S° Bound: | 21.729768 | |
| Description |
Niihau |
|
Extent Group 1 / Time Frame 1
| Time Frame Type: | Range |
|---|---|
| Start: | 2012-06-09 |
| End: | 2012-06-29 |
| Description: |
West Hawaii multibeam bathymetry collection dates. Rugosity values were derived from this data. |
Extent Group 1 / Time Frame 2
| Time Frame Type: | Range |
|---|---|
| Start: | 2005-06-13 |
| End: | 2005-07-08 |
| Description: |
Niihau multibeam bathymetry collection dates. Rugosity values are derived from this data. |
Extent Group 2
| Extent Description: |
Northwestern Hawaiian Islands, including.... French Frigate Shoals. |
|---|
Extent Group 2 / Geographic Area 1
| W° Bound: | -166.40391 | |
|---|---|---|
| E° Bound: | -165.99713 | |
| N° Bound: | 23.923072 | |
| S° Bound: | 23.546877 | |
| Description |
French Frigate Shoals |
|
Extent Group 3
| Extent Description: |
Mariana Archipelago including.... Guam and the Northern Mariana Islands, including Saipan, Pagan, and Tinian. |
|---|
Extent Group 3 / Geographic Area 1
| W° Bound: | 144.326 | |
|---|---|---|
| E° Bound: | 145.84 | |
| N° Bound: | 18.19 | |
| S° Bound: | 12.761 |
Extent Group 4
| Extent Description: |
American Samoa including ...... Tutuila, Manu'a (Ofo, Olosega, and Ta'u) Islands, and Rose Atoll Marine National Monument and the National Marine Sanctuary of American Samoa including Swains Island. |
|---|
Extent Group 4 / Geographic Area 1
| W° Bound: | -171.2186230908 | |
|---|---|---|
| E° Bound: | -168.131605 | |
| N° Bound: | -10.934991 | |
| S° Bound: | -14.604747 |
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 NOAA Coral Reef Conservation Program (CRCP). The analysis and interpretations presented here are solely that of the current authors.” |
| Data Access Procedure: |
Data can be accessed online via the Pacific Islands Benthic Habitat Mapping Center. |
| Data Access Constraints: |
None |
| Data Use Constraints: |
These data are not to be used for navigation purposes. Please cite PIFSC Ecosystem Sciences Division(ESD) when using the data. Suggested citation: Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, 2019: Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific, https://www.fisheries.noaa.gov/inport/item/35021. |
| Metadata Access Constraints: |
None |
| Metadata Use Constraints: |
None |
Distribution Information
Distribution 1
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/OO_5m_hardsoft.zip |
|---|---|
| Distributor: | |
| File Name: | OO_5m_hardsoft.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Ofu and Olosega islands that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 2
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/Rose_40m_HardSoft.zip |
|---|---|
| Distributor: | |
| File Name: | Rose_40m_HardSoft.zip |
| Description: |
Zip file containing 40-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Rose Atoll that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 3
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/Rose_5m_HardSoft.zip |
|---|---|
| Distributor: | |
| File Name: | Rose_5m_HardSoft.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Rose Atoll that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 4
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/Swains_40m_hardsoft.zip |
|---|---|
| Distributor: | |
| File Name: | Swains_40m_hardsoft.zip |
| Description: |
Zip file containing 40-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Swains that includes details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 5
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/tau_5m_hardsoft.zip |
|---|---|
| Distributor: | |
| File Name: | tau_5m_hardsoft.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Ta'u that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 6
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/tut-em32d-unspv-5m.zip |
|---|---|
| Distributor: | |
| File Name: | tut-em32d-unspv-5m.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom (Simrad em3002d data)---(TIF), maps (PDF and JPG), and metadata (TXT) specifically for Tutuila that includes details about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 7
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/amsamoa/benthichabitatlayers/tut-re8101-unspv-5m.zip |
|---|---|
| Distributor: | |
| File Name: | tut-re8101-unspv-5m.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom (Reson 8101 Data)---(TIF), maps (PDF and JPG), and metadata (TXT) specifically for Tutuila that includes details about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 8
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/Apra_5m_Hardsoft.zip |
|---|---|
| Distributor: | |
| File Name: | Apra_5m_Hardsoft.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(ASC), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Apra Harbor, Guam that includes specific details about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 9
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/gua-unspv-hardsoft-5m.zip |
|---|---|
| Distributor: | |
| File Name: | gua-unspv-hardsoft-5m.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Guam that includes specific details for the island about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 10
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/pag-unspv-hardsoft-10m.zip |
|---|---|
| Distributor: | |
| File Name: | pag-unspv-hardsoft-10m.zip |
| Description: |
Zip file containing 10-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Pagan that includes specific details for the island about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 11
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/sai-unspv-hardsoft-5m.zip |
|---|---|
| Distributor: | |
| File Name: | sai-unspv-hardsoft-5m.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Saipan that includes specific details for the island about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 12
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/benthichabitatlayers/tin-unspv-hardsoft-5m.zip |
|---|---|
| Distributor: | |
| File Name: | tin-unspv-hardsoft-5m.zip |
| Description: |
Zip file containing 5-meter substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for Tinian that includes specific details for the island about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 13
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/mhi/benthichabitatlayers/NII_wv2_hs.zip |
|---|---|
| Distributor: | |
| File Name: | NII_wv2_hs.zip |
| Description: |
Zip file containing substrate data---Hard bottom vs. Soft bottom derived from WorldView-2 satellite image based bathymetry---(ASC), maps (PDF and JPG), and metadata (TXT) specifically for Ni'ihau that includes specific details for the island about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 14
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/mhi/benthichabitatlayers/Niihau_mb_hs.zip |
|---|---|
| Distributor: | |
| File Name: | Niihau_mb_hs.zip |
| Description: |
Zip file containing substrate data---Hard bottom vs. Soft bottom derived from multibeam bathymetry---(ASC), maps (PDF and JPG), and metadata (TXT) specifically for Ni'ihau that includes specific details for the island about the methods, data quality, sources, etc. Arc ASCII can be converted to Arc Raster using ArcToolbox Conversion Tools (ASCII to Raster). |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
Distribution 15
| Download URL: | ftp://ftp.soest.hawaii.edu/pibhmc/website/data/nwhi/benthichabitatlayers/FFS_5m_Hardsoft.tif.zip |
|---|---|
| Distributor: | |
| File Name: | FFS_5m_Hardsoft.tif.zip |
| Description: |
Zip file containing substrate data---Hard bottom vs. Soft bottom---(TIF), maps (PDF and JPG), ArcGIS Layer file (LYR) and metadata (TXT) specifically for French Frigate Shoals that includes specific details about the methods, data quality, sources, etc. |
| File Type (Deprecated): | Zip |
| Compression: | Zip |
URLs
URL 1
| URL: | https://www.soest.hawaii.edu/pibhmc/index.htm |
|---|---|
| URL Type: |
Online Resource
|
| File Resource Format: | HTML |
| Description: |
Pacific Islands Benthic Habitat Mapping Center (PIBHMC) website. All data are accessible through this website. |
URL 2
| URL: | https://www.coris.noaa.gov/search/rest/find/document?searchText=title%3Ahard%20AND%20title%3Asoft%20AND%20CRED%20AND%20NOT%20(ESA%20OR%20%22West%20Hawaii%22)&start=1&max=500&f=georss&dojo.preventCache=1489495789632 |
|---|---|
| URL Type: |
Online Resource
|
| Description: |
Coral Reef Information System (CoRIS) Geoportal GeoRSS feed containing all metadata records associated with this catalog item. |
Technical Environment
| Description: |
Hard and Soft substrate classifications were derived from gridded multibeam bathymetry, and backscatter data where available, using the ArcGIS Iso Cluster Unsupervised Classification tool to create a GeoTIFF file. |
|---|
Data Quality
| Representativeness: |
Hard and Soft substrate classifications are primarily derived from gridded bathymetry data and backscatter data that is collected from a number of NOAA vessels using multibeam sonars. This multibeam data may be synthesized with other data including LiDAR bathymetry and Ikonos or WorldView satellite image derived bathymetry. Multibeam data collection targets waters from 20 meters to 500 meters depth. LiDAR and satellite derived bathymetry target waters less than 20 meters depth. The goal of all data collection is to collected data over the entire seafloor within the 0-500 meter depth range. |
|---|---|
| Accuracy: |
Horizontal positioning system: GPS C/A Horizontal position accuracy: 25 meters Range resolution of sonar: varies with depth Raw sounding resolution: varies with depth Vertical accuracy of gridded product ~ 1% of water depth |
| Completeness Report: |
Hard and Soft substrates were determined for all areas where gridded bathymetry data were available. Some gaps exist in bathymetry coverage due to hazardous conditions that prohibited access for the NOAA vessels or to limited time or funding resources. |
| Conceptual Consistency: |
Multibeam bathymetry data were collected by different NOAA vessels using the same collection methods. All multibeam data processing was conducted in the same manner by the Coral Reef Ecosystem program. All bathymetry synthesis data used as source data for the products generated for the Main Hawaiian Islands were processed in the same manner by the Hawaii Mapping Research Group. |
| Quality Control Procedures Employed: |
Corrections for tide variation and vessel attitude are applied to the multibeam data and a CTD (Conductivity, Temperature, and Depth instrument) cast is performed regularly during data collection to correct for variance within the water column. Multibeam data are tested for internal consistency; however, no effort is made to compare these data to external references or to other published data. |
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 method to develop the geomorphological data layers are generally described on the Pacific Islands Benthic Habitata Mapping Center website at https://www.soest.hawaii.edu/pibhmc/pibhmc_mapping.htm#geomorph. |
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Catalog Details
| Catalog Item ID: | 35021 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:35021 |
| Metadata Record Created By: | Annette M DesRochers |
| Metadata Record Created: | 2016-09-26 22:35+0000 |
| Metadata Record Last Modified By: | SysAdmin InPortAdmin |
| Metadata Record Last Modified: | 2024-10-03 18:16+0000 |
| Metadata Record Published: | 2019-05-30 |
| Owner Org: | PIFSC |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2019-05-30 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2020-05-30 |