Upwelling in the Pacific Northwest Marine Ecoregion 1998-2004

Citation:

Citation Information:

Originator: The Nature Conservancy
Publication Date: 2009
Title: Upwelling in the Pacific Northwest Marine Ecoregion 1998-2004 (continuous data)
Geospatial Data Presentation Form: raster digital data
Other Citation Details: See 'Data Quality' for citation of source data.

Description:

Abstract:
We used AVHRR satellite imagery (http://noaasis.noaa.gov/NOAASIS/ml/avhrr.html) to detect sea surface temperatures (SST) off the west coast of the US, from Cape Mendocino, CA north to the international border with Canada. We collected 1.1km resolution monthly composites of SST from NOAA's CoastWatch West Coast Regional node (http://coastwatch.pfel.noaa.gov/data.html) during the upwelling season (June-Aug) from 1998-2004. We eliminated any image that had cloud cover which left us with a total of 11 cloud-free images. We mosaiced (averaged) those images, and clipped them to our ecoregional boundary (shoreline [excluding estuaries, rivers and the Strait] to the toe of the slope). The units of the data are degrees C. This averaged raster was subsequently used to derive the vector dataset 'chlorophyll_pnwm', whereby the chlorophyll-a were classified into into two categories: high persistence, using using >=1.5 SD below the mean, and low persistence, using 0.5 to 1.5 SD below the mean.
Purpose:
This dataset was developed by The Nature Conservancy for the Pacific Northwest Marine Ecoregional Analysis, and is now being used in contribution to the Oregon Dept. of Fish and Wildlife's Nearshore Ecological Data Atlas.
Supplemental Information:
These metadata are provisional, pending review by the TNC staff responsible for the dataset's development.
Source data: 'SST, NOAA POES AVHRR, LAC, 0.0125 degrees, West US, Day and Night'. NOAA CoastWatch provides sea surface temperature (SST) products derived from NOAA's Polar Operational Environmental Satellites (POES). This data is provided at high resolution (0.0125 degrees) for the North Pacific Ocean. Measurements are gathered by the Advanced Very High Resolution Radiometer (AVHRR) instrument, a multiband radiance sensor carried aboard the NOAA POES satellites.

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1998
Beginning Time: Unknown
Ending Date: 2004
Ending Time: Unknown

Currentness Reference: ground condition

Status:

Progress: Complete
Maintenance and Update Frequency: None planned

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -126.277382
East Bounding Coordinate: -123.102934
North Bounding Coordinate: 48.4196
South Bounding Coordinate: 40.392839

Keywords:

Theme:

Theme Keyword Thesaurus: ISO 19115
Theme Keyword: Oceans

Theme:

Theme Keyword Thesaurus: None
Theme Keyword: upwelling

Place:

Place Keyword Thesaurus: None
Place Keyword: Pacific Northwest Marine Ecoregion
Place Keyword: Pacific Ocean
Place Keyword: Pacific Northwest
Place Keyword: Oregon
Place Keyword: Washington
Place Keyword: California
Place Keyword: West Coast US

Stratum:

Stratum Keyword Thesaurus: None
Stratum Keyword: oceanic

Access Constraints: None
Use Constraints:
The Nature Conservancy shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any sale, distribution, loan, or offering for use of these digital data, in whole or in part, is prohibited without the approval of the Nature Conservancy. The use of these data to produce other GIS products and services with the intent to sell for a profit is prohibited without the written consent of the Nature Conservancy. All parties receiving these data must be informed of these restrictions. The Nature Conservancy shall be acknowledged as data contributors to any reports or other products derived from these data.
Point of Contact:

Contact Information:

Contact Person Primary:

Contact Person: Dan Kelly
Contact Organization: The Nature Conservancy

Contact Position: GIS Analyst
Contact Electronic Mail Address: dkelly@tnc.org

Data Set Credit:
The Nature Conservancy;
Source data: NOAA National Weather Service (NWS), National Environmental Satellite, Data, and Information Service (NESDIS), National Data Buoy Center (NDBC)

Native Data Set Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.2.3200

Attribute Accuracy:

Attribute Accuracy Report: No tests performed.

Logical Consistency Report: No tests performed.
Completeness Report: No tests performed.
Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report: No tests performed.

Vertical Positional Accuracy:

Vertical Positional Accuracy Report: No tests performed.

Lineage:

Source Information:

Source Citation:

Citation Information:

Originator: NOAA CoastWatch Program - NOAA National Environmental Satellite Data and Information Service
Publication Date: 2009
Title: SST, NOAA POES AVHRR, LAC, 0.0125 degrees, West US, Day and Night
Online Linkage: http://coastwatch.pfel.noaa.gov

Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1998
Beginning Time: Unknown
Ending Date: 2004
Ending Time: Unknown

Source Currentness Reference: ground condition

Source Citation Abbreviation: AVHRR satellite imagery
Source Contribution: 1.1km resolution monthly composites (June-Sept) of Sea Surface Temperatures

Process Step:

Process Description: 11 cloud-free images were averaged, then clipped to the Pacific Northwest Marine Ecoregional boundary.
Source Used Citation Abbreviation: AVHRR satellite imagery
Process Date: 2009

Cloud Cover: 0

Direct Spatial Reference Method: Raster
Raster Object Information:

Raster Object Type: Grid Cell
Row Count: 851
Column Count: 289
Vertical Count: 1

Horizontal Coordinate System Definition:

Planar:

Grid Coordinate System:

Grid Coordinate System Name: Universal Transverse Mercator 1927
Universal Transverse Mercator:

UTM Zone Number: 10
Transverse Mercator:

Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -123
Latitude of Projection Origin: 0
False Easting: 500000
False Northing: 0

Planar Coordinate Information:

Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:

Abscissa Resolution: 0.0001
Ordinate Resolution: 0.0001

Planar Distance Units: Meter

Geodetic Model:

Horizontal Datum Name: D North American 1983
Ellipsoid Name: GRS 1980
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257222101

Detailed Description:

Entity Type:

Entity Type Label: upwell_pnwm

Resource Description: Downloadable Data
Distribution Liability: See access and use constraints information.
Standard Order Process:

Digital Form:

Digital Transfer Information:

Transfer Size: 1.713

Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: 1/1895
Time of Day: Unknown

Metadata Date: 11/9/2011
Metadata Review Date:
Metadata Future Review Date:
Metadata Contact:

Contact Information:

Contact Person Primary:

Contact Person: Aaron Jones
Contact Organization: The Nature Conservancy

Contact Position: GIS Analyst
Contact Address:

Address Type: mailing and physical address
Address: 821 SE 14th Ave
City: Portland
State or Province: OR
Postal Code: 97214
Country: USA

Contact Electronic Mail Address: ajones@tnc.org

Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time