Short Citation:
Pacific Islands Fisheries Science Center, 2020: Multi beam bathymetry and backscatter synthesis for the Main Hawaiian Islands (5 meter resolution), https://www.fisheries.noaa.gov/inport/item/31636.

Item Identification

Title: Multi beam bathymetry and backscatter synthesis for the Main Hawaiian Islands (5 meter resolution)
Short Name: 5m multibeam synthesis
Status: Completed
Revision Date: 2017
Publication Date: 2017
Abstract:

The Hawaii deep-slope bottomfish fishery preferentially targets seven high value species (i.e. six snappers and one grouper, hereafter referred to as Deep7) and represents the major insular commercial fishery in the state. The NOAA Pacific Islands Fisheries Science Center (PIFSC) Stock Assessment Program (SAP) is responsible for regularly assessing this stock.

To augment and improve the data used in the Deep7 assessment, PIFSC began developing a multi-gear Bottomfish Fishery-Independent Survey (BFISH) for the Deep7 stock in the Main Hawaiian Islands (MHI) in 2011 (Richards et al., 2016). Benthic habitat has been shown to play a key role in determining the spatial distribution of demersal living marine resources (Richards et al., 2012). The BFISH survey employs a stratified random sampling design based on depth and habitat.

Prior to the work presented here, the lack of usable backscatter data across the entire MHI domain was a major impediment to the development of a properly stratified operational fishery-independent survey covering the full domain of the stock. While backscatter data had been collected throughout the MHI, these data were collected using various platforms and sensors such that numeric backscatter values from disparate areas did not represent similar levels of substrate hardness. This precluding development of a comprehensive survey stratification across the MHI domain of the Deep7 stock.

To remedy this situation, the NOAA Pacific Islands Fisheries Science Center conducted a one-year project to create comprehensive, high-resolution, synthesized depth, slope, and seafloor hardness maps and GIS layers for the Main Hawaiian Islands. This paper describes that effort in two parts:

1. Part I: Methods and results pertaining to the development of a 5-meter resolution Main Hawaiian Islands bathymetric and backscatter synthesis covering depths of 75 to 400 m;

2. Part II: Novel methods and results associated with the use of these newly created synthesis data in quantitatively defining effective habitat strata ratification for the NOAA PIFSC Bottomfish Fishery-Independent Survey in Hawaii (BFISH).

Purpose:

These data products will be used for experimental design and stratification of teh Pacific Islands Fisheries Science Center (PIFSC) Bottomfish Fishery-Independent Survey in Hawaii (BFISH) as well as to investigate physical factors correlated with distribution of Hawaiian bottomfish species.

Notes:

This is a rescaling and synthesis of existing multi beam data products to create seamless and single scale products for the MHI.

Keywords

Theme Keywords

Thesaurus Keyword
PARR EXCLUSION OBSOLETE
None advanced technology
None backscatter
None bathymetry
None bottomfish
None Deep-7 bottomfish
None depth
None FRMD
None multibeam
None PIFSC
None SAP
None slope
None stock assessment

Temporal Keywords

Thesaurus Keyword
None 2016

Spatial Keywords

Thesaurus Keyword
None Kahoolawe
None Kauai
None Lanai
None Main Hawaiian Islands
None Maui
None Molokai
None Niihau
None Oahu
None Penguin Bank

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: As Needed
Data Presentation Form: Map (digital)

Support Roles

Data Steward

CC ID: 348949
Date Effective From: 2015
Date Effective To:
Contact (Person): Miyamoto, Brent M
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: brent.miyamoto@noaa.gov
Phone: 808-725-5340
Business Hours: 8:15 a.m. - 5:15 p.m. HST

Distributor

CC ID: 309162
Date Effective From: 2011
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.

Metadata Contact

CC ID: 309164
Date Effective From: 2011
Date Effective To:
Contact (Person): Richards, Benjamin L
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: benjamin.richards@noaa.gov
Phone: (808)725-5320
Contact Instructions:

Email or phone (808-983-5320)

Point of Contact

CC ID: 309163
Date Effective From: 2011
Date Effective To:
Contact (Person): Richards, Benjamin L
Address: 1845 Wasp Blvd.
Honolulu, HI 96818
USA
Email Address: benjamin.richards@noaa.gov
Phone: (808)725-5320
Contact Instructions:

Email or phone (808-983-5320)

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 309166
W° Bound: -160.7
E° Bound: -154.7
N° Bound: 22.3
S° Bound: 18.7
Description

Main Hawaiian Islands

Extent Group 1 / Time Frame 1

CC ID: 309167
Time Frame Type: Range
Start: 2015-10-01
End: 2016-04-30

Access Information

Security Class: Unclassified
Data Access Procedure:

http://www.soest.hawaii.edu/HMRG/multibeam/backscatter.php

Data Access Constraints:

None

Distribution Information

Distribution 1

CC ID: 383885
Start Date: 2018
End Date: Present
Download URL: http://www.soest.hawaii.edu/HMRG/multibeam/backscatter.php
Distributor: Pacific Islands Fisheries Science Center (PIFSC) (2011 - Present)
File Name: Multi beam bathymetry and backscatter synthesis
Description:

metadata records for the Multi beam bathymetry and backscatter synthesis for the MHI (5 meter resolution)

File Type: ESRI Grid
File Size: 630MB

Data Quality

Quality Control Procedures Employed:

QC after data collection.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: Unknown
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
Approximate Delay Between Data Collection and Dissemination: 1 Year
Actual or Planned Long-Term Data Archive Location: NCEI-MD
Approximate Delay Between Data Collection and Archiving: 1 Year
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

Data reside on PI's federal computer. Regularly scheduled backups are performed.

Lineage

Lineage Statement:

Data was collected in the field by PIFSC staff using shipboard acoustic instruments.

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity (ENT) Multi beam bathymetry and backscatter synthesis for the MHI (5 meter resolution)

Catalog Details

Catalog Item ID: 31636
Metadata Record Created By: Benjamin L Richards
Metadata Record Created: 2016-03-22 19:02+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2019-07-25
Owner Org: PIFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-07-25