TWEB Routes

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: National Weather Service
Publication_Date: 19990401
Title: TWEB Routes
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage:
<http://www.nws.noaa.gov/geodata/catalog/transportation/html/tweb.htm>
Description:
Abstract:
The Transcribed Weather Enroute Broadcast (TWEB) are the routes used 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:
All lines originate and end at TWEB anchor points and are drawn individually to each point (if any) along the route. The lines do not intersect other lines at common anchor points.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: National Weather Service
Publication_Date: 09052002
Title: NATIONAL WEATHER SERVICE INSTRUCTION 10-805
Geospatial_Data_Presentation_Form: document
Other_Citation_Details: See Appendix A
Type_of_Source_Media: online
Source_Citation_Abbreviation: NWSI 10-805
Source_Information:
Source_Citation:
Citation_Information:
Originator: g.c.r. & associates, inc.
Title: Airport Locations
Geospatial_Data_Presentation_Form: online
Other_Citation_Details:
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:
From a database containing TWEB route numbers, and the anchor points for the routes, a line shapefile is written where each route record contains the lines connecting each anchor point. For routes with one anchor point a circle of 25 miles is created.
Source_Used_Citation_Abbreviation: NWSI 10-805
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: String
Point_and_Vector_Object_Count: 218

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: ANCHOR_IDS
Attribute_Definition: String with TWEB anchor points

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: 0.142

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

Generated by mp version 2.7.3 on Fri Dec 06 13:17:35 2002