IMAGE EELGRASS

Available as - [Outline] - [SGML]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Earth Design Consultants
Publication_Date: 19960000
Title: IMAGE EELGRASS
Geospatial_Data_Presentation_Form: image
Publication_Information:
Publication_Place: Corvallis,OR
Publisher: Earth Design Consultants
Online_Linkage: <http://www.orst.edu/dept/tbaynep/active.html>

Description:
Abstract:
Distribution of eelgrass in Tillamook Bay using multispectral airborne imagery. Attributes include intertidal/subtidal land(?)cover and substrate information.

Purpose:

general management planning and analysis of resource use and environmental health in Tillamook Bay

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19950714
Currentness_Reference: source date

Status:
Progress: Complete
Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.95567815
East_Bounding_Coordinate: -123.8689112
North_Bounding_Coordinate: 45.56617868
South_Bounding_Coordinate: 45.47474792
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: landcover
Theme_Keyword: substrates
Theme_Keyword: bay
Theme_Keyword: intertidal ecosystem
Theme_Keyword: eelgrass
Theme_Keyword: multispectral images
Theme_Keyword: image classification
Theme_Keyword: subtidal

Place:
Place_Keyword_Thesaurus: none
Place_Keyword: North America
Place_Keyword: United States of America
Place_Keyword: OR
Place_Keyword: Oregon
Place_Keyword: Tillamook Bay

Access_Constraints: none

Use_Constraints: see Distribution_Liability

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: James Strittholt, Pamela Frost
Contact_Organization: Earth Design Consultants

Contact_Address:
Address_Type: Mailing and Physical Address
Address: 800 NW Starker, Ave., Suite 31,
City: Corvallis
State_or_Province: OR
Postal_Code: 97330
Country: USA
Contact_Voice_Telephone: (503) 757-7896
Contact_Electronic_Mail_Address: stritt@earthdesign.com

Data_Set_Credit:
A prototype sensor developed by the Kestrel Corporation (Albuquerque, NM) was used to obtain the imagery.

Native_Data_Set_Environment: ERDAS Imagine ver. 8.2


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The sensor used to acquire the data was a prototype. this combined with changing atmospheric conditions during the 4+ hour data acquisition time resulted in inconsistencies between the individual images adding a great deal of time to the classification phase of the project.

Logical_Consistency_Report: Not applicable for raster data.

Completeness_Report: complete

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Resolution:approximately 1m x 1m. Since the data was georeferenced to maximize positional accuracy in the bay itself at the expense of accuracy in the uplands. Positional Accuracy:After georeferencing, positional accuracy was approximately 5 meters in the bay itself, but as high as 40 meters in the uplands.

Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Kestrel Corporation
Publication_Date: unknown
Title: untitled
Geospatial_Data_Presentation_Form: raw multi-spectral imagery

Publication_Information:
Publication_Place: unknown
Publisher: Earth Design Consultants
Source_Scale_Denominator: n/a
Type_of_Source_Media: multi-spectral imagery
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19950714
Source_Currentness_Reference: calendar date
Source_Citation_Abbreviation: a
Source_Contribution: all

Process_Step:
Process_Description:
Multispectral returns for each frame were sorted into 10-25 classes. The classes were then classified as vegetation, substrate/developed, or water. For the "vegetation pixels" between 30-40 spectral classes were assigned to an unsupervised classification process and assigned to 6 classes. Pixels classified as "substrate/developed" were treated in like fashion using 40 spectral bins for each of the 7 subsections and classified into 4 substrate classes. The vegetation and substrate classifications were then merged for each subsection and joined to form a composite for Tillamook Bay. All remaining pixels were classified as water.
Process_Date: unknown


Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 9876
Column_Count: 6354


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 43
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 41.75
False_Easting: 400000.00000
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 3.290679228899
Ordinate_Resolution: 3.290679228899
Planar_Distance_Units: Feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98


Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
1 = terrestrial plants
2 = green algae
3 = dense mixed algae
4 = dense eelgrass
5 = sparse eelgrass
6 = sparse mixed algae on dark substrates
7 = sparse mixed algae on light substrates
8 = sand/gravel
9 = mud/sand
10 = organic debris
11 = developed
12 = water
Entity_and_Attribute_Detail_Citation: not available


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Tillamook Coastal Watershed Resource Center
Contact_Position: G.I.S. Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 6385 Tillamook Ave.
City: Bay City
State_or_Province: OR
Postal_Code: 97107
Country: USA
Contact_Voice_Telephone: (503)377-4000
Contact_Instructions: Contact via email,mail,fax or telephone
Contact_Electronic_Mail_Address: requests@tcwrc.tbcc.cc.or.us

Distribution_Liability:
no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use with that careful attention be paid to the contents of the metadata file associated with these data. The Tillamook Coastal Watershed Resource Center shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Metadata_Reference_Information:
Metadata_Date: 19990216
Metadata_Review_Date: 20000101
Metadata_Future_Review_Date: 19990229
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Tillamook Coastal Watershed Resource Center
Contact_Person: Ann Stark
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 6385 Tillamook Ave.
City: Bay City
State_or_Province: OR
Postal_Code: 97107
Country: USA
Contact_Voice_Telephone: (503)377-4000
Contact_Facsimile_Telephone: (503)377-4010
Contact_Electronic_Mail_Address: requests@tcwrc.tbcc.cc.or.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none

Generated by mp version 2.4.10 on Wed Jul 28 14:52:24 1999