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Short Citation:
National Centers for Coastal Ocean Science, 2022: Five-minute grid of marine bird density data off central California, 1980-2001 (CDAS data set five-min-grid), https://www.fisheries.noaa.gov/inport/item/39319.

Item Identification

Title: Five-minute grid of marine bird density data off central California, 1980-2001 (CDAS data set five-min-grid)
Short Name: five-min-grid
Status: Completed
Publication Date: 2004
Abstract:

A shapefile of five minute grids with summary information on at-sea bird surveys from 1980-2001. Bird densities by ocean season, by species.

Purpose:

This shapefile was used to map density and other community metric maps for NOAA. It has a summary of marine bird survey data at sea, from 1980-2001, from the CDAS central CA data set.

Notes:

244

Supplemental Information:

This file was developed by R.G. Ford Consulting Co. and includes eight survey data sets.

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
ISO 19115 Topic Category biota
ISO 19115 Topic Category environment
ISO 19115 Topic Category oceans
NOS data explorer topic category environmental monitoring
None marine bird
None marine bird density
None seabird
None seabird density

Physical Location

Organization: National Centers for Coastal Ocean Science
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Irregular
Data Presentation Form: vector digital data
Distribution Liability:

These data were prepared for an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, 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. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.

Data Set Credit: R.G. Ford Consultting Co., Portland OR

Support Roles

Data Steward

CC ID: 465687
Date Effective From: 2004
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Distributor

CC ID: 465689
Date Effective From: 2004
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Metadata Contact

CC ID: 465690
Date Effective From: 2004
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Point of Contact

CC ID: 465688
Date Effective From: 2004
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Principal Investigator

CC ID: 465691
Date Effective From: 2004
Date Effective To:
Contact (Person): Gill, Tracy
Email Address: tracy.gill@noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 465694
W° Bound: -128.833328
E° Bound: -120.583336
N° Bound: 39.083332
S° Bound: 34.833333

Extent Group 1 / Time Frame 1

CC ID: 465693
Time Frame Type: Range
Start: 1980
End: 2001

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 584383
Complex Object Present?: Yes
Complex Object Count: 5049

Access Information

Security Class: Unclassified
Data Access Procedure:

download from website;

Data Access Constraints:

None

Data Use Constraints:

None

Distribution Information

Distribution 1

CC ID: 465695
Download URL: http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/five_min_grid.zip
Distributor:
Description:

Downloadable Data

File Type: shapefile
File Size: 0.655

URLs

URL 2

CC ID: 465685
URL: http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 465705
Activity Date/Time: 2014-03-19
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 465704
Activity Date/Time: 2017-04-05
Description:

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.

Activity Log 3

CC ID: 584381
Activity Date/Time: 2017-09-13
Description:

Partial upload of Spatial Info section only.

Activity Log 4

CC ID: 601003
Activity Date/Time: 2017-11-01
Description:

Replaced entire Lineage section to populate new Source Contribution field.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324

Data Quality

Accuracy:

The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute x 5 minute latitude x longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort. Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001. All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced.

Completeness Report:

All shapefile cells have attribute information.

Conceptual Consistency:

All shapefile attributes were checked for consistency of appropriate range values. The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute x 5 minute latitude x longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort. Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001. All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced/

Lineage

Sources

R. G. Ford Consulting Co.

CC ID: 601004
Contact Name: R.G. Ford developed the shapefile five-min-grid, based on several data sets collected from 1980-2001.
Publish Date: 2001-01-01
Extent Type: Range
Extent Start Date/Time: 1980
Extent End Date/Time: 2001
Citation URL: http://ccma.nos.noaa.gov/ecosystems/sanctuaries/ca_nms2.aspx
Source Contribution:

R.G. Ford Consulting Co. | Source Geospatial Form: map | Type of Source Media: disc

Process Steps

Process Step 1

CC ID: 601005
Description:

The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute x 5 minute latitude x longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort. Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001. All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced.

Process Date/Time: 2001-01-01 00:00:00
Source: R. G. Ford Consulting Co.

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity five_min_grid

Catalog Details

Catalog Item ID: 39319
GUID: gov.noaa.nmfs.inport:39319
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 12:51+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2017-11-09
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2017-11-09
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2018-11-09