40067
hab118_0503c -- Habitat polygons for HMPR-118-2005-03c survey in Olympic Coast national marine sanctuary.
hab118_0503c
Data Set
Published / External
37246
ocnms_benthic
Project
In Work
2007-05
Benthic habitat polygon coverages are being created for the Olympic Coast national marine sanctuary (OCNMS).ROV, towed camera sled, bathymetry data, sedimentary samples, and sonar mapping have been integrated to describe the geological, biological, and oceanographic aspects of habitat. OCNMS has collected side scan sonar and video data to produce polygon coverages. The habitat polygons have attributes for megahabitat, bottom induration, mesohabitat, macrohabitat and biology (where direct observations are available), polygon area and perimeter.
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display benthic information.
1417
Additional information about the field activities from which this data set was derived are available online at:http://www.olympiccoast.noaa.gov/research/mapping/welcome.html
Theme
ISO 19115 Topic Category
oceans
Theme
NOS Data Explorer Topic Category
Environmental Monitoring
Theme
fisheries
Theme
geology
Theme
habitat
Theme
lithology
Theme
seafloor
Spatial
Juan de Fuca
Spatial
Olympic Coast
Spatial
Washington
Office of National Marine Sanctuaries
Silver Spring
MD
Data Set
As Needed
vector digital data
Please recognize the Olympic Coast national marine sanctuary (OCNMS) as the source of these data. The Olympic Coast National Marine Sanctuary nor any of their employees, make any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, or represents that its use would not infringe privately owned rights. Original data elements may have been compiled from various sources. Spatial information may not meet National Mapping Accuracy Standards. This information may be updated, corrected, or otherwise modified without notification. For additional information about this data contact the Olympic Coast national marine sanctuary.
Steven S. IntelmannGuy Cochrane
42026
hab118_0503c.pat
hab118_0503c.pat
Published / External
In Work
Unknown | Description Source: Green, HG. et al. 1999. A classification scheme for deep seafloor habitats.Oceanologica Acta. 22(6):663-678.
Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script.
1
FID
Unknown
No
No
Active
Internal feature number. | Description Source: ESRI
Sequential unique whole numbers that are automatically generated.
2
Shape
Unknown
No
No
Active
Feature geometry. | Description Source: ESRI
Coordinates defining the features.
3
AREA
Unknown
No
No
Active
Area of feature in internal units squared. | Description Source: ESRI
Positive real numbers that are automatically generated.
4
PERIMETER
Unknown
No
No
Active
Perimeter of feature in internal units. | Description Source: ESRI
Positive real numbers that are automatically generated.
5
HAB118_0503C#
Unknown
No
No
Active
Internal feature number. | Description Source: ESRI
Sequential unique whole numbers that are automatically generated.
6
HAB118_0503C-ID
Unknown
No
No
Active
User-defined feature number. | Description Source: ESRI
Unknown
7
MEGA_ID
VARCHAR
No
No
Active
Based on depth and general physiographic boundaries. | Description Source: Unknown
F: Flanks, Continental Slope (200-3000m) | S: Shelf, continental and island shelves (0-200m) |
8
BOTTOM_ID
VARCHAR
No
No
Active
Bottom Induration | Description Source: Unknown
h: hard substrate, rock outcrop | m: mixed (hard and soft substrates) | s: soft substrate or sediment covered |
9
MSO_MRC_ID
VARCHAR
No
No
Active
Mesoscale/Macrohabitat | Description Source: Unknown
m: mound, depression | e: exposure, bedrock | w: waves |
10
MDFR_ID
VARCHAR
No
No
Active
Mesoscale/Macrohabitat Modifier | Description Source: Unknown
_u: unconsolidated sediment | _c: consolidated sediment |
11
SLOPE
VARCHAR
No
No
Active
Seafloor Slope | Description Source: Unknown
1: Flat (0-5 degrees) | 2: Sloping (5-15 degrees) | 3: Steeply sloping (15-30 degrees) | 4: Vertical (30-90 degrees) | 99: no data |
12
COMPLEX
VARCHAR
No
No
Active
Seafloor Complexity | Description Source: Standard deviation neighborhood statistic calculated from 3x3 window of multibeam xyz data
A: 0-0.5 | B: 0.5-1.0 | C: > 1.0 | 9: no data |
13
MCRO_MICR
VARCHAR
No
No
Active
Macrohabitat/Microhabitat | Description Source: Unknown
(b): boulder | (c): cobble | (p): pebble | (g): gravel | (s): sand | (m): silt, mud, or clay | (e): exposed rock | (w): waves | [g]: gorgonians | [a]: anemone | [o]: other sessile organisms | [c]: coral | [r]: rockfish | [l]: lingcod | [s]: sponge |
14
CODE
Unknown
No
No
Active
Overall habitat code constructed through concatenating all other descriptive fields. | Description Source: Unknown
Unknown
15
SURVEY
Unknown
No
No
Active
Unique code to identify survey conducted at OCNMS | Description Source: Unknown
Unknown
Data Steward
2007-05
Position
OCNMS GIS Coordinator
olympiccoast@noaa.gov
115 East Railroad Ave Suite 301
Port Angeles
WA
98362
Distributor
2007-05
Position
OCNMS GIS Coordinator
olympiccoast@noaa.gov
115 East Railroad Ave Suite 301
Port Angeles
WA
98362
Metadata Contact
2007-05
Position
OCNMS GIS Coordinator
olympiccoast@noaa.gov
115 East Railroad Ave Suite 301
Port Angeles
WA
98362
Point of Contact
2007-05
Position
OCNMS GIS Coordinator
olympiccoast@noaa.gov
115 East Railroad Ave Suite 301
Port Angeles
WA
98362
Ground Condition
-125.280389
-125.073114
48.233597
48.054218
Discrete
2005-06-19
Yes
Yes
20309
Yes
27543
Unclassified
None.
Not suitable for navigation.
http://olympiccoast.noaa.gov/science/habitatmapping/habitatmapping.htmldatacatalog.html
Downloadable Data
Unknown
15.773
http://olympiccoast.noaa.gov/science/habitatmapping/habitatmapping.html
Online Resource
2008-06-15
Date that the source FGDC record was last modified.
2017-04-05
Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.
2017-09-13
Partial upload of Spatial Info section only.
2018-02-08
Partial upload of Positional Accuracy fields only.
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.2.0.1324
Accuracy of the horizontal coordinates is on the order of 10-30m based on the uncertainty in position of side scan sonar towfish relative to ships position. Horizontal layback is more accurate than lateral offsets, since any lateral offset in the towfish position (due to side currents) is unaccounted for in the layback calculations.
Complexity and slope not calculated since no multibeam data existed in this area at time of publication.
Polygon topology present. Each polygon has a label and all polygons are closed.
1
Geotiff images were converted to raw binary files and processed according to: Cochrane, G.R., and K.D. Lafferty, 2002. Use of acoustic classification of side scan sonar data for mapping benthic habitat in the Northern Channel Islands, California. Continental Shelf Research. 22: 683-690.The raw entropy, homogogeneity, and side scan images were imported into Leica Geosystems Imagine software and stacked into a single multispectral file. Training signatures were digitized into three classes representing hard, mixed, and soft sediment. Supervised classification was then performed using a maximum likelihood decision rule. The multispectral file was then converted to a grey scale image and reclassed to 3 categories representing the same as the digitized signatures. Individual sediment class images were exported as raw binary files and imported into Adobe Photoshop where misclassifed pixels were removed or reclassed with help of digital overlay with the side scan image. Each sediment class image was then reimported into Erdas and then all merged into a single file where the final product was exported as a Geotiff representing seafloor sediment hardness. The Majority Filter command in ArcInfo (with Eight|Half parameters) was run on the image to reduce the number of features, essentially smoothing the data through a neighborhood analysis. The raster image was then converted to polygon features in ArcInfo. Sediment grab data and video information were used as a validation tool. Where video data existed, polygons were manually split to attach macrohabitat attributes.
2005-01-01T00:00:00
42026
Entity
hab118_0503c.pat
gov.noaa.nmfs.inport:40067
Tyler Christensen
2017-04-05T14:27:46
SysAdmin InPortAdmin
2023-05-30T18:09:23
2018-02-08
Office of National Marine Sanctuaries
ONMS
1002
Public
No
2018-02-08
1 Year
2019-02-08