Metadata for Compact Airborne Spectrographic Imager Grayscale Raster
1995, Whatcom County Area, Washington
(band2_8.*)
Table of Contents
Identification_Information
Abstract
Purpose
Supplemental Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Detailed Description
Overview
Distribution_Information
Metadata_Reference_Section
Identification_Information
Citation_Information
Originator: Nearshore Habitat Program, Washington State
Department of Natural Resources, Aquatic Resources Division.
Publication_Date: 19970630
Title: 1995 Compact Airborne Spectrographic Imager Grayscale
Raster, Whatcom County Area, WA.
Description
Abstract
Data consists of a grayscale raster image, wavelength range from
540 - 560 nm (nanometers). It is a single layer from the
original multispectral data set. The multispectral data were
acquired by the Compact Airborne Spectrographic Imager (CASI)
sensor.
Purpose
The grayscale image provides users with a base image that
registers precisely with the Intertidal Vegetation Inventory
1995, Whatcom County area, Washington raster data set.
Supplemental_Information
(1) Washington State is divided into two State Plane zones,
north and south. The data set's coordinate values are reported
in Washington State Plane south. (2) Imagery was acquired during
periods of maximum intertidal exposure (0 mean lower low water
or below in most areas),and times when sun angle would reduce
sun glint. (3) Detailed documentation of acquisition parameters
and processing methods can be found in Borstad (1996).
Revisions: 1.0.0
References_Cited
Berry, H.D. and R.A. Ritter. 1997. Puget Sound Intertidal
Habitat Inventory 1995: Vegetation and Shoreline
Characteristics Classification Methods. Washington State
Department of Natural Resources, Aquatic Resources
Division
Borstad, G. (1996). The Nearshore Habitat Inventory Project
Task 7: Project Summary Memorandum. Unpublished report
prepared by G.A. Borstad Associates Ltd. for Washington
State Department of Natural Resources, Aquatic Resources
Division, Olympia, WA-USA.
Time_Period_of_Content
Range_of_Dates/Times
Beginning_Date: 19950712
Ending_Date: 19950813
Currentness_Reference Publication Date
Status
Progress: complete
Maintenance_and_Update_Frequency
Spatial_Domain
Bounding_Coordinates
West_Bounding_Coordinate: -122.8093944
East_Bounding_Coordinate: -122.4746972
North_Bounding_Coordinate: 48.9082417
South_Bounding_Coordinate: 48.6404278
Keywords
Theme
Theme_Keyword_Thesaurus: None
Theme_Keyword: grayscale raster
Place
Place_Keyword_Thesaurus: None
Place_Keyword: Whatcom County, Washington, USA, Puget Sound
Stratum
Stratum_Keyword_Thesaurus: None
Stratum_Keyword:
Temporal
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 19950712, 19950813
Access_Constraints: None
Use_Constraints
(1) This data set was created for use at 1:12,000 scale or smaller.
(2) These data were acquired for regional analysis and planning,
not for site-specific applications. (3) Imagery reflects conditions
at a point in time (July 12, 1995 or August 13, 1995). (4) Do not
copy, modify, or distribute this data set. (5) While efforts have
been made to ensure these data are accurate and reliable,
Washington State Department of Natural Resources, cannot assume
liability for any damages, or misrepresentations, caused by any
inaccuracies in the data. Washington State Department of Natural
Resources makes no warranty, expressed or implied, nor does the
fact of distribution constitute such a warranty.
Point_of_Contact
Contact_Information
Contact_Organization_Primary:
Nearshore Habitat Program, Washington State Department of
Natural Resources, Aquatic Resources Division
Contact_Address:
Address_Type: mailing address
Address: PO Box 47027
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7027
Country: USA
Contact_Voice_Telephone: (360) 902-1100
Contact_Facsimile_Telephone: (360) 902-1786
Data_Set_Credit
Washington State Department of Natural Resources, Aquatic Resources
Division, Nearshore Habitat Program; Puget Sound Ambient Monitoring
Program; G.A. Borstad Associates Ltd.
Security_Information
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment: Solaris 2.5 UNIX, ERDAS Imagine version
8.2
Data_Quality_Information
Attribute_Accuracy
Attribute_Accuracy_Report:
Quantitative_Attribute_Accuracy_Assessment
Attribute_Accuracy_Value:
Attribute_Accuracy_Explanation:
Logical_Consistency_Report:
Completeness_Report
Positional_Accuracy
Horizontal_Positional_Accuracy
Horizontal_Positional_Accuracy_Report:
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: +/-40 feet for most
areas at original resolution.
Horizontal_Positional_Accuracy_Explanation: Root mean
square error calculated by the rectification
transformation.
Vertical_Positional_Accuracy
Vertical_Positional_Accuracy_Report: Not determined.
Lineage:
Source_Information
Source_Citation
Originator: G.A. Borstad Associates Ltd. under contract to
Washington State Department of Natural Resources, Aquatic
Resources Division, Nearshore Habitat Program.
Publication_Date: none
Title: 1995 Compact Airborne Spectrographic Imager, Grayscale
Layer from Nearshore Multispectral Imagery
Geospatial_Data_Presentation_Form: remote-sensing image
Source_Scale_Denominator: 0
Type_of_Source_Media: 8 mm magnetic tape
Source_Time_Period_of_Content
Time_Period_Information
Range_of_Dates/Time
Beginning_Date: 19950712
Ending_Date: 19950813
Source_Currentness_Reference: source imagery date
Source_Citation_Abbreviation:
Source_Contribution: A single layer from the original
airborne multispectral data set used to create a base image
when overlaying classified data.
Process Steps: Multispectral imagery was corrected to surface
radiance by applying an atmosphere correction, corrected for
roll, pitch and yaw and projected into geographic coordinates
using differential GPS to yield square, four meter pixels
(Borstad, 1996). The resulting imagery was warped to fit DNR's
digital orthographic photography and coastline vectors in
Washington State Plane, south zone, North American Datum of
1927. The flight lines were rectified to within +/-3 pixels
(12m) in most parts of the imagery. The rectified flight lines
were mosaicked into five, non-overlapping blocks.
The NHP used Imagine 8.2 software (ERDAS, Inc., Atlanta, GA)
running on a Sun workstation (Sun Microsystems, Inc., Mountain
View, CA) to process the rectified, mosaicked, unsigned 16 bit
image data. Layer 2 (540 - 560 nm) from the original
multispectral imagery was extracted. The single channel unsigned
16 bit data were rescaled to unsigned 8 bit format for ease of
use.
Spatial_Data_Organization_Information
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: pixel
Row_Count: 7615
Column_Count: 5950
Spatial_Reference_Information
Horizontal_Coordinate_System_Definition
Planar
Grid_Coordinate_System
Grid_Coordinate_System_Name: State Plane Coordinate System
Zone_Number: 5626 (U.S. Geological Survey code)
Planar Coordinate Information:
Planar_Coordinate_Encoding_Method: row, column
Coordinate_Representation:
Abscissa_Resolution: 13.123
Ordinate_Resolution: 13.123
Planar_Distance_Units: FEET
Geodetic Model
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6,378,206.4
Denominator_of_Flattening: 294.98
Entity_and_Attribute_Information
Detailed_Description
Entity_Type:
Entity_Type_Label: Raster Attributes (band2_8.img; band2_8.bil)
Entity_Type_Definition: The attribute description table
associated with the raster file. Applies to the generic binary
band interleaved by line (.bil) format and the ERDAS .img format
Entity_Type_Definition_Source: ERDAS IMAGINE 8.2
Attribute:
Attribute_Label: PIXEL_VALUE
Attribute_Definition: Numeric value assigned to a pixel
Attribute_Definition_Source: Computed
Attribute_Domain_Values: valid values range from 0 to 255
Enumerated_Domain
Enumerated_Domain_Value: Integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: HISTOGRAM
Attribute_Definition: Number of pixels for a particular
CLASS_NAME
Attribute_Definition_Source: Computed
Attribute_Domain_Values: HISTOGRAM values vary with frequency of
occurrence for a particular PIXEL_VALUE.
Enumerated_Domain
Enumerated_Domain_Value: Integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: COLOR
Attribute_Definition: red, green, blue values assigned to a
pixel
Attribute_Definition_Source: Assigned
Attribute_Domain_Values: values range from 0 to 1
Enumerated_Domain
Enumerated_Domain_Value: Real Number
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: OPACITY
Attribute_Definition: a measure of how opaque (or solid) a color
is
Attribute_Definition_Source: Assigned
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Real Number
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Entity_Type:
Entity_Type_Label: Tagged Image File Format Attributes
(band2_8.tif)
Entity_Type_Definition: attribute description
associated with the tagged image file format.
Entity_Type_Definition_Source: ARC/INFO
Attribute:
Attribute_Label: COLOR
Attribute_Definition: color that correspond to a pixel value
Attribute_Definition_Source: Assigned
Attribute_Domain_Values:
Enumerated_Domain
Enumerated_Domain_Value:
Overview_Description
Entity_and_Attribute_Overview
Distribution_Information
Distributor
Contact_Organization_Primary
Contact_Organization: Nearshore Habitat Program, Washington
State Department of Natural Resources, Aquatic Resources
Division
Contact_Address
Address_Type: mailing address
Address: PO Box 47027
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7027
Country: USA
Contact_Voice_Telephone: (360) 902-1100
Contact_Facsimile_Telephone: (360) 902-1786
Contact_Electronic_Mail_Address:
Resource_Description:
This data set is part of the 1995 Intertidal Habitat Inventory,
Whatcom County, WA on CD-ROM.
Standard_Order_Process
Digital_Form
Digital_Transfer_Information
Format_Name: .img, .bil,.tif
Format_version_number:.img and .bil (ERDAS 8.2); .tif
(ARC/INFO 7.1.1)
Format_specifications:
.img (band2_8.img)
file/layer information
number of layers: 1
data type: unsigned 8 bit
bytes per pixel: 1
map information
upper left (center) X: 1444232.312
upper left (center) Y: 1312198.188
lower right (center) X: 1522301.039
lower right (center) Y: 1212279.666
pixel X size: 13.123
pixel Y size: 13.123
unit: feet
projection information
coordinate system: state plane
projection zone: 5626 (U.S. Geological Survey)
datum: North American Datum of 1927
spheroid: Clarke 1866
.bil(generic binary band interleaved by line)
(band2_8.bil)
file/layer information
number of layers: 1
data type: unsigned 8 bit
bytes per pixel: 1
map information
upper left (center) X: 1444232.312
upper left (center) Y: 1312198.188
lower right (center) X: 1522301.039
lower right (center) Y: 1212279.666
pixel X size: 13.123
pixel Y size: 13.123
unit: feet
projection information
coordinate system: state plane
projection zone: 5626 (U.S. Geological Survey)
datum: North American Datum of 1927
spheroid: Clarke 1866
file structure
file header bytes: 0
line header bytes: 0
image record length: line header bytes + (no. of
columns) x bytes per pixel
Note: the generic binary's associated band2_8.hdr file
is an ASCII file created when exporting generic binary
data form ERDAS Imagine. The .hdr file contains
information critical to populating the header of the
imported image file
.tif
number of layers is 1
data type(bytes per pixel) is unsigned 8 bit
bytes per pixel is 1
Note: the tagged image file format's (TIFF) associated
band2_8.tfw file is an ASCII file produced when
creating a TIFF in ARC/INFO. The .tfw file contains
information critical to populating the header of the
imported file.
Digital_Transfer_Option
Offline_Option
Offline_Media: CD-ROM
Recording_Format: ISO 9660
Compatibility_Information: ISO 9660 format allows the
CD-ROM contents to be accessible to any computer on most
operating systems.
Fees: None
Metadata_Reference_Section
Metadata_Date: 19970630
Metadata_Contact:
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial
Metadata Metadata_Standard_Version: 19940608
Metadata_Time_Convention: Local Time
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: UNCLASSIFIED
Metadata_Security_Handling_Description: None
Last modified: 97-06-03