TWEB Route Anchors

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: National Weather Service

Publication_Date: 19990401

Title: TWEB Route Anchors

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage:

<http://www.nws.noaa.gov/geodata/catalog/transportation/html/tweb.htm>

Description:

Abstract:

Transcribed Weather Enroute Broadcast (TWEB) anchor points are used to describe TWEB routes for TWEB text products for the contiguous U.S.

Purpose:

To allow Weather Forecast Offices to issue TWEB route forecasts/products. This route line shapefile and the anchor point point shapefile comprise a complete data set of TWEB routes and nodes.

Supplemental_Information:

More information about TWEBs can be found at <http://aviationweather.noaa.gov/awc/help/about_twebs.html>.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Currentness_Reference: 19990104

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.246110

East_Bounding_Coordinate: -68.018060

North_Bounding_Coordinate: 49.910830

South_Bounding_Coordinate: 24.556110

Keywords:

Theme:

Theme_Keyword: TWEB

Theme_Keyword: Acnhor Points

Theme_Keyword: aviation

Place:

Place_Keyword: CONUS

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ira Graffman

Contact_Organization: National Weather Service

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20904

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Logical_Consistency_Report: Point shapefile.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: National Weather Service

Title: NWSI 10-805

Geospatial_Data_Presentation_Form: document

Other_Citation_Details: Appendix A

Online_Linkage: <http://www.nws.noaa.gov/directives/010/pd01008005a.pdf>

Type_of_Source_Media: online

Source_Citation_Abbreviation: MIRS

Source_Information:

Source_Citation:

Citation_Information:

Originator: gcr & associates, inc.

Title: Airport Locations

Geospatial_Data_Presentation_Form: atlas

Other_Citation_Details:

Source of lat/lon for anchor points data derived from the National Flight Data Center (FAA, 800 Independence Avenue, S. W., Room 634, Washington, D.C. 20591).

Online_Linkage: <http://www.gcr1.com/5010web/>

Process_Step:

Process_Description:

Database in dBase IV format of route names and achor points is extracted from the NWS's Management Information Reporting System (MIRS). The dBase file is converted into a point shapefile.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ira Graffman

Contact_Organization: National Weather Service

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 544

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378206.400000

Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: TWEB Routes

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ROUTE

Attribute_Definition: TWEB Route Number

Attribute:

Attribute_Label: ANCHPOSN

Attribute_Definition: Position of anchor point within route

Attribute:

Attribute_Label: ANCHOR

Attribute_Definition: Anchor airport identifier

Attribute:

Attribute_Label: LON

Attribute_Definition: Longitude of anchor point

Attribute:

Attribute_Label: LAT

Attribute_Definition: Latitude of anchor point

Attribute:

Attribute_Label: COMMENT

Attribute_Definition: Commnet

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ira Graffman

Contact_Organization: National Weather Service

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Resource_Description: Downloadable Data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.064

Metadata_Reference_Information:

Metadata_Date: 20021206

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Weather Service

Contact_Person: Ira Graffman

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile