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NCCOS Metadata Library > CCMA > Biogeography > NWHI_Benthic > Aggregated Habitat Cover Maps Depicting the Sha... >

Aggregated Habitat Cover Classification Scheme

Entity (ENT)  |  National Centers for Coastal Ocean Science (NCCOS)
GUID: gov.noaa.nmfs.inport:41266  |  Updated: August 9, 2022  |  Published / External 
Summary
Item Identification
Data Attributes
Catalog Details

Summary

Abstract

The aggregated habitat cover classification scheme was designed to provide information on substrate (hardbottom or unconsolidated) and habitat cover (coral, Crustose coralline algae, macroalgae/seagrass, or uncolonized) found in the NWHI. | Description Source: NOS - Biogeography Program

Entity Information

Data Attribute / Type Description
Northwestern Hawaiian Islands Classification Scheme
VARCHAR 		Benthic features were assigned one of thirty habitat types ranging from sand to coral. A complete description of these classification categories can be found in the NWHI_class_scheme.pdf (http://ccma.nos.noaa.gov/ecosystems/coralreef/nwhi/pdf/NWHI_class_scheme.pdf).RESULTS AGGREGATED COVER TYPE:Habitat_name, Numeric_value, Red_color_value, Green_color_value, Blue_color_value RESULTS DETAILED HABITAT TYPE:Habitat_name, Habitat_classification_code | Description Source: NOS - Biogeography Team
Hardbottom with >10% live coral, 23, 240, 164, 164
VARCHAR 		Included all classes in the hardbottom substrate category that had more than 10 percent live coral cover. Hardbottom that was not classified with respect to structure (class 2020), but which had live coral, was also included in this category. Bottom habitat consisting of mixtures of live coral, crustose coralline algae and macroalgae also dell into this category as long as there was enough live coral to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
Hardbottom with >10% crustose coralline algae,29,255,111,111
VARCHAR 		Included all classes in the hardbottom substrate category that had more than 10 percent live crustose coralline algal cover, but not more than ten percent live coral cover. Bottom habitats with a mixture of crustose coralline algae, live coral (not more than 10 percent) and macroalgae fell in this category if there was enough crustose coralline algae to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
Hardbottom (uncolonized),26,150,150,150
VARCHAR 		Included all classes in the hardbottom substrate category that had less than 10 percent live coral cover, crustose coralline algal cover or macroalgal cover. | Description Source: Aggregated Cover Type
Hardbottom with >10% macroalgae,22,240,164,164
VARCHAR 		Included all classes in the hardbottom substrate category that had more than 10 percent macroalgae, but not more than 10 percent live coral cover or 10 percent crustose coralline algal cover. Typically these habitats also had a high percentage of turf algal cover. | Description Source: Aggregated Cover Type
Hardbottom with indeterminate cover,20,120,120,120
VARCHAR 		Included all classes in the hardbottom substrate category for which a specific bottom cover was not identified. Included were area classified only to the first or second level of the detailed classification scheme. | Description Source: Aggregated Cover Type
Unconsolidated with 10% or less macroalgae or seagrass,10,229,207,95
VARCHAR 		Included all classes in the unconsolidated substrate category with not more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). | Description Source: Aggregated Cover Type
Unconsolidated with >10% macroalgae or seagrass,220,0,128,64
VARCHAR 		Included all classes in the unconsolidated substrate category with more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). Seagrass was very uncommon in NWHI (only a small area was found at Midway during the field survey) and was not identified on any of the habitat maps. | Description Source: Aggregated Cover Sites
Deep water,240,0,70,130
Unknown 		Areas where the bottom cannot be detected (identified) in the imagery. In most cases, this occurs in water more than 30 m deep. | Description Source: NOS - Biogeography Program
Land,250,170,115,0
Unknown 		Areas determined to be above the water line in the imagery at the time the imagery was acquired. | Description Source: NOS - Biogeography Program
Unclassified (e.g., cloud, cloud shadow, surf),255,70,0,80
Unknown 		Areas where the bottom type is unclassified because of turbidity in the water, surface glint, or other types of interference. This category also includes areas where the seabed cannot be classified due to a lack of supplemental field-based information of for other reasons. | Description Source: NOS - Biogeography Program
No Data,4000,0,0,0
Unknown 		Refers to areas within the geographic bounds of the habitat map that lie outside the bounds of the aquired imagery. This is not a habitat category in the classification scheme. | Description Source: NOS - Biogeography Program

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Item Identification

Title: Aggregated Habitat Cover Classification Scheme
Short Name: Aggregated Habitat Cover Classification Scheme
Status: Completed
Abstract:

The aggregated habitat cover classification scheme was designed to provide information on substrate (hardbottom or unconsolidated) and habitat cover (coral, Crustose coralline algae, macroalgae/seagrass, or uncolonized) found in the NWHI. | Description Source: NOS - Biogeography Program
Notes:

Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.

Data Attributes

Attribute Summary

Rubric Score Primary Key? Name Type Description
100
 Northwestern Hawaiian Islands Classification Scheme VARCHAR Benthic features were assigned one of thirty habitat types ranging from sand to coral. A complete description of these classification categories can be found in the NWHI_class_scheme.pdf (http://ccma.nos.noaa.gov/ecosystems/coralreef/nwhi/pdf/NWHI_class_scheme.pdf).RESULTS AGGREGATED COVER TYPE:Habitat_name, Numeric_value, Red_color_value, Green_color_value, Blue_color_value RESULTS DETAILED HABITAT TYPE:Habitat_name, Habitat_classification_code | Description Source: NOS - Biogeography Team
100
 Hardbottom with >10% live coral, 23, 240, 164, 164 VARCHAR Included all classes in the hardbottom substrate category that had more than 10 percent live coral cover. Hardbottom that was not classified with respect to structure (class 2020), but which had live coral, was also included in this category. Bottom habitat consisting of mixtures of live coral, crustose coralline algae and macroalgae also dell into this category as long as there was enough live coral to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
100
 Hardbottom with >10% crustose coralline algae,29,255,111,111 VARCHAR Included all classes in the hardbottom substrate category that had more than 10 percent live crustose coralline algal cover, but not more than ten percent live coral cover. Bottom habitats with a mixture of crustose coralline algae, live coral (not more than 10 percent) and macroalgae fell in this category if there was enough crustose coralline algae to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
100
 Hardbottom (uncolonized),26,150,150,150 VARCHAR Included all classes in the hardbottom substrate category that had less than 10 percent live coral cover, crustose coralline algal cover or macroalgal cover. | Description Source: Aggregated Cover Type
100
 Hardbottom with >10% macroalgae,22,240,164,164 VARCHAR Included all classes in the hardbottom substrate category that had more than 10 percent macroalgae, but not more than 10 percent live coral cover or 10 percent crustose coralline algal cover. Typically these habitats also had a high percentage of turf algal cover. | Description Source: Aggregated Cover Type
100
 Hardbottom with indeterminate cover,20,120,120,120 VARCHAR Included all classes in the hardbottom substrate category for which a specific bottom cover was not identified. Included were area classified only to the first or second level of the detailed classification scheme. | Description Source: Aggregated Cover Type
100
 Unconsolidated with 10% or less macroalgae or seagrass,10,229,207,95 VARCHAR Included all classes in the unconsolidated substrate category with not more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). | Description Source: Aggregated Cover Type
100
 Unconsolidated with >10% macroalgae or seagrass,220,0,128,64 VARCHAR Included all classes in the unconsolidated substrate category with more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). Seagrass was very uncommon in NWHI (only a small area was found at Midway during the field survey) and was not identified on any of the habitat maps. | Description Source: Aggregated Cover Sites
100
 Deep water,240,0,70,130 Unknown Areas where the bottom cannot be detected (identified) in the imagery. In most cases, this occurs in water more than 30 m deep. | Description Source: NOS - Biogeography Program
100
 Land,250,170,115,0 Unknown Areas determined to be above the water line in the imagery at the time the imagery was acquired. | Description Source: NOS - Biogeography Program
100
 Unclassified (e.g., cloud, cloud shadow, surf),255,70,0,80 Unknown Areas where the bottom type is unclassified because of turbidity in the water, surface glint, or other types of interference. This category also includes areas where the seabed cannot be classified due to a lack of supplemental field-based information of for other reasons. | Description Source: NOS - Biogeography Program
100
 No Data,4000,0,0,0 Unknown Refers to areas within the geographic bounds of the habitat map that lie outside the bounds of the aquired imagery. This is not a habitat category in the classification scheme. | Description Source: NOS - Biogeography Program

Attribute Details

Northwestern Hawaiian Islands Classification Scheme

CC ID: 533728
Seq. Order: 1
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Benthic features were assigned one of thirty habitat types ranging from sand to coral. A complete description of these classification categories can be found in the NWHI_class_scheme.pdf (http://ccma.nos.noaa.gov/ecosystems/coralreef/nwhi/pdf/NWHI_class_scheme.pdf).RESULTS AGGREGATED COVER TYPE:Habitat_name, Numeric_value, Red_color_value, Green_color_value, Blue_color_value RESULTS DETAILED HABITAT TYPE:Habitat_name, Habitat_classification_code | Description Source: NOS - Biogeography Team
Allowed Values: Habitat_name: The name of the benthic habitat identified and depicted. | Habitat_classification_code: A hierarchical, 4-digit code assigned to each habitat type. | Numeric_value: A two- or three-digit numeric value assigned to each habitat type. | Red_color_value: A numeric value ranging from 0-255 assigned to the red channel of the RGB color palette. | Green_color_value: A numeric value ranging from 0-255 assigned to the green channel of the RGB color palette. | Blue_color_value: A numeric value ranging from 0-255 assigned to the blue channel of the RGB color palette |

Hardbottom with >10% live coral, 23, 240, 164, 164

CC ID: 533729
Seq. Order: 2
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the hardbottom substrate category that had more than 10 percent live coral cover. Hardbottom that was not classified with respect to structure (class 2020), but which had live coral, was also included in this category. Bottom habitat consisting of mixtures of live coral, crustose coralline algae and macroalgae also dell into this category as long as there was enough live coral to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
Allowed Values: Hardbottom with live coral (>10% cover)* (2010): Detailed Habitat Type | Linear Reef with live coral (>10% cover)* (2110): Detailed Habitat Type | Aggregated Coral Heads with live coral (>10% cover)* (2210): Detailed Habitat Type | Patch Reef with live coral (>10% cover)* (2410): Detailed Habitat Type | Aggregated Patch Reef with live coral (>10% cover)* (2510): Detailed Habitat Type | Scattered Coral/Rock in sand with live coral (>10% cover)* (2610): Detailed Habitat Type | Pavement with live coral (>10% cover)* (2710): Detailed Habitat Type | Pavement with live coral (>10% cover) and dense (>50% cover) algae* (2712): Detailed Habitat Type | Pavement with sand channels and live coral (>10% cover)* (2810): Detailed Habitat Type | Volcanic Rock with live coral (>10% cover)* (2910): Detailed Habitat Type |

Hardbottom with >10% crustose coralline algae,29,255,111,111

CC ID: 533730
Seq. Order: 3
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the hardbottom substrate category that had more than 10 percent live crustose coralline algal cover, but not more than ten percent live coral cover. Bottom habitats with a mixture of crustose coralline algae, live coral (not more than 10 percent) and macroalgae fell in this category if there was enough crustose coralline algae to meet the 10 percent threshold. | Description Source: Aggregated Cover Type
Allowed Values: Hardbottom with crustose coralline algae (>10% cover)* (2030): Detailed Habitat Type | Linear Reef with crustose coralline algae (>10% cover)* (2130): Detailed Habitat Type | Patch Reef with crustose coralline algae (>10% cover)* (2430): Detailed Habitat Type | Pavement with crustose coralline algae (>10% cover)* (2730): Detailed Habitat Type |

Hardbottom (uncolonized),26,150,150,150

CC ID: 533731
Seq. Order: 4
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the hardbottom substrate category that had less than 10 percent live coral cover, crustose coralline algal cover or macroalgal cover. | Description Source: Aggregated Cover Type
Allowed Values: Hardbottom, uncolonized* (2020): Detailed Habitat Type | Linear Reef, uncolonized* (2120): Detailed Habitat Type | Patch Reef, uncolonized* (2420): Detailed Habitat Type | Pavement, uncolonized* (2720): Detailed Habitat Type | Pavement with sand channels, uncolonized* (2820): Detailed Habitat Type | Volcanic Rock, uncolonized* (2920): Detailed Habitat Type |

Hardbottom with >10% macroalgae,22,240,164,164

CC ID: 533732
Seq. Order: 5
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the hardbottom substrate category that had more than 10 percent macroalgae, but not more than 10 percent live coral cover or 10 percent crustose coralline algal cover. Typically these habitats also had a high percentage of turf algal cover. | Description Source: Aggregated Cover Type
Allowed Values: Hardbottom with sparse (10-50% cover) algae* (2001): Detailed Habitat Type | Linear Reef, uncolonized with sparse (10-50% cover) algae* (2121): Detailed Habitat Type | Patch Reef, uncolonized with sparse (10-50% cover) algae* (2421): Detailed Habitat Type | Pavement with sparse (10-50% cover) algae* (2701): Detailed Habitat Type | Pavement with dense (>50% cover) algae* (2702): Detailed Habitat Type | Pavement with live coral (>10% cover) and dense (>50% cover) algae* (2712): Detailed Habitat Type | Pavement, uncolonized with dense (>50% cover) algae* (2722): Detailed Habitat Type |

Hardbottom with indeterminate cover,20,120,120,120

CC ID: 533733
Seq. Order: 6
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the hardbottom substrate category for which a specific bottom cover was not identified. Included were area classified only to the first or second level of the detailed classification scheme. | Description Source: Aggregated Cover Type
Allowed Values: Hardbottom* (2000): Detailed Habitat Type | Linear Reef* (2100): Detailed Habitat Type | Spur and Groove* (2300): Detailed Habitat Type | Individual Patch Reef* (2400): Detailed Habitat Type | Aggregated Patch Reef* (2500): Detailed Habitat Type | Pavement* (2700): Detailed Habitat Type | Volcanic Rock* (2900): Detailed Habitat Type | Pavement with Sand Channels* (2800): Detailed Habitat Type |

Unconsolidated with 10% or less macroalgae or seagrass,10,229,207,95

CC ID: 533734
Seq. Order: 7
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the unconsolidated substrate category with not more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). | Description Source: Aggregated Cover Type
Allowed Values: Unconsolidated sediment* (1000): Detailed Habitat Type | Sand* (1100): Detailed Habitat Type | Unconsolidated rubble* (1300): Detailed Habitat Type | Sand and rubble* (1400): Detailed Habitat Type | Groove* (1500): Detailed Habitat Type |

Unconsolidated with >10% macroalgae or seagrass,220,0,128,64

CC ID: 533735
Seq. Order: 8
Data Storage Type: VARCHAR
Required: No
Primary Key: No
Status: Active
Description:

Included all classes in the unconsolidated substrate category with more than 10 percent cover of live submerged vegetation (macroalgae/seagrass). Seagrass was very uncommon in NWHI (only a small area was found at Midway during the field survey) and was not identified on any of the habitat maps. | Description Source: Aggregated Cover Sites
Allowed Values: Sand with macroalgae* (1120): Detailed Habitat Type | Sand with patchy (10-50% cover) macroalgae* (1121): Detailed Habitat Type | Sand with dense (>50% cover) macroalgae* (1122): Detailed Habitat Type | Unconsolidated Rubble with sparse (10-50% cover) algae* (1301): Detailed Habitat Type | Unconsolidated Rubble with dense (>50% cover) algae* (1302): Detailed Habitat Type |

Deep water,240,0,70,130

CC ID: 533736
Seq. Order: 9
Data Storage Type: Unknown
Required: No
Primary Key: No
Status: Active
Description:

Areas where the bottom cannot be detected (identified) in the imagery. In most cases, this occurs in water more than 30 m deep. | Description Source: NOS - Biogeography Program
Allowed Values: User defined - Detailed Habitat Type

Land,250,170,115,0

CC ID: 533737
Seq. Order: 10
Data Storage Type: Unknown
Required: No
Primary Key: No
Status: Active
Description:

Areas determined to be above the water line in the imagery at the time the imagery was acquired. | Description Source: NOS - Biogeography Program
Allowed Values: User defined - Detailed Habitat Type

Unclassified (e.g., cloud, cloud shadow, surf),255,70,0,80

CC ID: 533738
Seq. Order: 11
Data Storage Type: Unknown
Required: No
Primary Key: No
Status: Active
Description:

Areas where the bottom type is unclassified because of turbidity in the water, surface glint, or other types of interference. This category also includes areas where the seabed cannot be classified due to a lack of supplemental field-based information of for other reasons. | Description Source: NOS - Biogeography Program
Allowed Values: User defined - Detailed Habitat Type

No Data,4000,0,0,0

CC ID: 533739
Seq. Order: 12
Data Storage Type: Unknown
Required: No
Primary Key: No
Status: Active
Description:

Refers to areas within the geographic bounds of the habitat map that lie outside the bounds of the aquired imagery. This is not a habitat category in the classification scheme. | Description Source: NOS - Biogeography Program
Allowed Values: User defined

Catalog Details

Catalog Item ID: 41266
GUID: gov.noaa.nmfs.inport:41266
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-06 10:33+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2017-04-17
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2017-04-17
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2018-04-17