"hara5nwqs.tif"

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Intermap Technologies Inc.
Publication_Date: 20030207
Title: "hara5nwqs.tif"
Edition: 1
Geospatial_Data_Presentation_Form: Orthorectified Radar Image
Series_Information:
Series_Name: Orthorectified Radar Image
Issue_Identification: Version 1
Publication_Information:
Publication_Place: Englewood, CO
Publisher: Intermap Technologies Inc.
Online_Linkage: <URL:http://www.globalterrain.com>
Online_Linkage: <URL:http://www.intermaptechnologies.com>
Online_Linkage: <URL:http://www.globalterrain.com/gt.asp#Product Handbook>

Description:
Abstract:
This data set is an orthorectified radar image (ORRI). The ORRI products are generated using the Intermap STAR-3i airborne interferometric synthetic aperture radar (SAR) system mounted in a LearJet 36A aircraft.

The nominal ORRI data files are digital representations of the radar response signal. ORRIs consist of a georeferenced pixel for a number of ground positions at regularly spaced intervals.

These ORRI products represent the first reflective surface as illuminated by the radar. Accuracy statements are based on areas of moderate terrain. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation.

The ORRI data for 7.5-minute by 18-minute units correspond to the USGS 1:63,360 scale topographic quadrangle map series for available areas in the United States. Each 7.5-minute by 18-minute ORRI is based on 1.25m pixel resolution using the Universal Transverse Mercator (UTM) projection. Each 7.5-minute by 18-minute tile provides full coverage with overlap into adjacent tiles.

The original ORRI is unenhanced and may appear dark when viewed. Both the original ORRI and an ORRI with a customized linear stretch enhancement are provided. The stretched ORRI will appear brighter and is easy to view without additional enhancements.

Purpose:
The purpose of this data set is to provide a source for current and accurate orthorectified radar images.

Supplemental_Information:
The STAR-3i system employs three principle technologies: X-band Horizontal -Horizontal (HH) polarized SAR, a ring laser-based inertial measurement unit (IMU), and Differential Global Positioning System (DGPS). STAR-3i was developed by the Environmental Research Institute of Michigan (ERIM) under contract to the U.S. Defense Advanced Research Projects Agency (DARPA).

The system is comprised of two X-band radar antennae that collect data simultaneously. The set of acquired data are "interfered" by a digital correlation process to extract terrain height data and geometrically correct radar images. STAR-3i uses post-processed DGPS data, together with precise inertial measurement data, to attain highly accurate positioning control. Precise terrain height and positioning data are enhanced by careful calibration of the baseline separating the two antennae.

The STAR-3i system accuracy has been independently validated by tests conducted by the U.S. Army Topographic Engineering Center, the Institute of Navigation, Stuttgart University and by NASA. A summary of test results are accessible at <URL:http://www.globalterrain.com>.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020724
Ending_Date: 20020729
Currentness_Reference:
The above dates refer to the time of field data acquisition and therefore reflect ground conditions at that time.

Status:
Progress: Complete
Maintenance_and_Update_Frequency: Ongoing

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -153
East_Bounding_Coordinate: -152.7
North_Bounding_Coordinate: 70.25
South_Bounding_Coordinate: 70.125

Keywords:
Theme:
Theme_Keyword_Thesaurus: MEL_Scientific-Engineering_Field_Thesaurus
Theme_Keyword: Elevation
Theme_Keyword: Cartography
Theme_Keyword: Geodesy
Theme_Keyword: Geography
Theme_Keyword: Hypsography
Theme_Keyword: Mapping
Theme_Keyword: Photogrammetry
Theme_Keyword: Stereophotogrammetry
Theme_Keyword: Topography
Theme_Keyword: Radar
Theme_Keyword: Interferometric
Theme_Keyword: Remote
Theme_Keyword: Sensing
Theme_Keyword: SAR
Theme_Keyword: DEM
Theme_Keyword: DTM
Theme_Keyword: DSM
Theme_Keyword: ORRI
Theme_Keyword: ORI
Theme_Keyword: STAR-3i
Theme_Keyword: INSAR
Theme_Keyword: IFSAR
Theme_Keyword: IFSARE
Theme_Keyword: GEOSAR
Theme_Keyword: height
Stratum:
Stratum_Keyword_Thesaurus: MEL_Environmental_Domain_Thesaurus
Stratum_Keyword: Terrain
Stratum_Keyword: Earth
Stratum_Keyword: Surface
Stratum_Keyword: Bald
Stratum_Keyword: Ground
Stratum_Keyword: First
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: Alaska
Place_Keyword: National
Place_Keyword: Petroleum
Place_Keyword: Reserve
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2002
Temporal_Keyword: July

Access_Constraints: Purchase
Use_Constraints: None

Point_of_Contact:
Contact_Information:
Contact_Position: Data Archive Manager
Contact_Organization_Primary:
Contact_Organization: Intermap Technologies Inc.

Contact_Address:
Address_Type: mailing address
Address: 400 Inverness Parkway, Suite 330
City: Englewood
State_or_Province: CO
Postal_Code: 80112-5847
Country: USA
Contact_Voice_Telephone: (303) 708-0955
Contact_Facsimile_Telephone: (303) 708-0952
Contact_Electronic_Mail_Address: <mailto:info@globalterrain.com>

Data_Set_Credit:
This data was produced by Intermap Technologies Inc.

Native_Data_Set_Environment:
This data is delivered on interoperable media with metadata, thumbnail images and quality control report. The data set was developed on a Sun ULTRA SPARC 2 computer system running Solaris (UNIX).


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Calculation of the orthorectified radar image is described in the GT Product Handbook User's Guide. <URL:http://www.globalterrain.com/gt.asp#Product Handbook>

Logical_Consistency_Report: None

Completeness_Report: None

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
2.5 meters RMSE or better in areas of unobstructed flat ground.

Lineage:
Process_Step:
Process_Date: 20030207
Process_Description:
This ORRI data product was derived using Intermap Technologies STAR-3i airborne interferometric SAR data acquisition system. The flying height is 30,000 feet Above Sea Level. The primary look direction is West. The phase unwrapper utilized is ifprocT. Most incidences of non-data areas are due to radar shadow and layover due to steep terrain. Radar shadow is a factor of the local topography. It is often found in mountainous regions and the urban canyons of built-up areas. Occurances of non-data areas within an ORRI are dependent on the look direction of the radar. Areas in which no data is collected are assigned the value 0. Null data such as shadows within an image are assigned the value 0.


Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 12160
Column_Count: 10400


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 5
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: 153 degrees West
Latitude_of_Projection_Origin: 0
False_Easting: 500000.0 meters
False_Northing: 0.0 meters
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 1.25
Ordinate_Resolution: 1.25
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: NAD83
Ellipsoid_Name: GRS80
Semi-major_Axis: 6,378,137
Denominator_of_Flattening_Ratio: 298.257222101


Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 8 bit GeoTIFF
Entity_Type_Definition:
The ORRI is an 8 bit georeferenced TIFF image on a 7.5-minute by 18-minute geographic (lat/long) grid in UTM projection. The origin of the pixel is center center.
Entity_Type_Definition_Source: <URL:http://www.globalterrain.com/gt.asp#Product Handbook>
Attribute:
Attribute_Label: Digital number value per pixel.
Attribute_Definition:
Greyscale value assigned to pixel to represent magnitude of radar signal return.
Attribute_Definition_Source: <URL:http://www.globalterrain.com/gt.asp#Product Handbook>
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute_Units_of_Measure: digital number values
Attribute_Measurement_Resolution: 1
Overview_Description:
Entity_and_Attribute_Overview:
Project Information
NPRA1 Task Order#: 01010C0010
NPRA2 Task Order#: 01010C0029
Project Area: National Petroleum Reserve Alaska
Intermap Project Number: 02218
Time of Collection
Flight Segment: m356p36s1
Base Stations: Alpine_with_two_different_start_times-Deadhorse
Flight Direction: 0.3049243
Pass Acquisition Start Time (includes GPS week): 14914.77102
Pass Acquisition Start Time (GPS in HH:MM:SS): 4:08:35
Pass Acquisition Start Time (UTC in HH:MM:SS): 4:08:22
Pass Acquisition End Time (includes GPS week): 15743.69668
Pass Acquisition End Time (GPS in HH:MM:SS): 4:22:24
Pass Acquisition End Time (UTC in HH:MM:SS): 4:22:11
Pass Acquisition Date: 28-Jul-02
Flight Segment: m356p36s2
Base Stations: Alpine_with_two_different_start_times-Deadhorse
Flight Direction: 0.2960953
Pass Acquisition Start Time (includes GPS week): 14914.77102
Pass Acquisition Start Time (GPS in HH:MM:SS): 4:08:35
Pass Acquisition Start Time (UTC in HH:MM:SS): 4:08:22
Pass Acquisition End Time (includes GPS week): 15743.69668
Pass Acquisition End Time (GPS in HH:MM:SS): 4:22:24
Pass Acquisition End Time (UTC in HH:MM:SS): 4:22:11
Pass Acquisition Date: 28-Jul-02
Flight Segment: m356p37s1
Base Stations: Teshekpuk
Flight Direction: 0.2790848
Pass Acquisition Start Time (includes GPS week): 39796.71423
Pass Acquisition Start Time (GPS in HH:MM:SS): 11:03:17
Pass Acquisition Start Time (UTC in HH:MM:SS): 11:03:04
Pass Acquisition End Time (includes GPS week): 40534.62238
Pass Acquisition End Time (GPS in HH:MM:SS): 11:15:35
Pass Acquisition End Time (UTC in HH:MM:SS): 11:15:22
Pass Acquisition Date: 28-Jul-02
Flight Segment: m356p37s2
Base Stations: Teshekpuk
Flight Direction: 0.2909155
Pass Acquisition Start Time (includes GPS week): 39796.71423
Pass Acquisition Start Time (GPS in HH:MM:SS): 11:03:17
Pass Acquisition Start Time (UTC in HH:MM:SS): 11:03:04
Pass Acquisition End Time (includes GPS week): 40534.62238
Pass Acquisition End Time (GPS in HH:MM:SS): 11:15:35
Pass Acquisition End Time (UTC in HH:MM:SS): 11:15:22
Pass Acquisition Date: 28-Jul-02
Intermap Processing AML Version: 1.1.0, 20030206
ISO 9001 Certification No.: A8379
Image Origin (North West Corner)
UTM_Easting_(meters): 499175.625
UTM_Northing_(meters): 7794394.375
Image Extents
UTM_Easting_(meters): Min. 499175 Max. 512175
UTM_Northing_(meters): Min. 7779195 Max. 7794395
Entity_and_Attribute_Detail_Citation:
<URL:http://www.globalterrain.com/gt.asp#Product Handbook>


Metadata_Reference_Information:
Metadata_Date: 20030220
Metadata_Contact:
Contact_Information:
Contact_Position: Vice-President E-Business
Contact_Organization_Primary:
Contact_Organization: Intermap Technologies Inc.
Contact_Address:
Address_Type: mailing address
Address: 400 Inverness Parkway, Suite 330
City: Englewood
State_or_Province: CO
Postal_Code: 80112-5847
Country: USA
Contact_Voice_Telephone: (303) 708-0955
Contact_Facsimile_Telephone: (303) 708-0952
Contact_Electronic_Mail_Address: <mailto:info@globalterrain.com>
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: None
Metadata_Security_Handling_Description: None

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998


Generated by mp version 2.5.6 on Thu Feb 20 14:25:05 2003