Edited LIDAR Elevation Data, NE quadrant of Steep Gully quadrangle, Louisiana, UTM 15 NAD83, Louisiana Federal Emergency Management Agency (FEMA) Project - Phase 2 of Louisiana LIDAR Data Development: Rapides Parish, Louisiana under the Watershed Concepts contract number EMT-2002-CO-0048, Task Order 013. [scp_3009202ne]

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: Watershed Concepts

Publication_Date: 2003

Title:

Edited LIDAR Elevation Data, NE quadrant of Steep Gully quadrangle, Louisiana, UTM 15 NAD83, Louisiana Federal Emergency Management Agency (FEMA) Project - Phase 2 of Louisiana LIDAR Data Development: Rapides Parish, Louisiana under the Watershed Concepts contract number EMT-2002-CO-0048, Task Order 013. [scp_3009202ne]

Description:

Abstract:

This is a point dataset of elevations over the NE quadrant of the Steep Gully quadrangle, Louisiana. The data were derived from LIDAR measurements performed in 2002. The data are 'edited' to the extent that they have been largely reduced to a 'bare ground' representation; most above ground level features and objects such as buildings and trees have been removed from these data.

These data were produced for the Louisiana Federal Emergency Management Agency (FEMA) Project - Phase 2 of Louisisana LIDAR Data Development: Rapides Parish, Louisiana under the Watershed Concepts contract number EMT-2002-CO-0048, Task Order 013.

The data are provided as a comma delimited xyz file (scp_3009202ne.csv) in ASCII format.

Purpose:

These data are used for the production of Triangulated Irregular Network (TIN) digital elevation models or whenever a direct representation of the bare-earth LIDAR point data is needed.

Supplemental_Information:

The metadata for this image are encapsulated into several documents. The metadata are not complete if you did not receive the following files along with the data set:

scp_3009202ne.mtd - this metadata in mp (metadata parser) compatible ASCII text form
scp_3009202ne.html - this metadata in HTML form
scp_3009202ne_faq.html - this metadata presented as Questions and Answers
scp_3009202ne.sgml - this metadata in SGML form
scp_3009202ne.xml - this metadata in XML form

The information depicted on this map represents the results of the survey on the dates indicated and can only be considered as indicating the general conditions existing at the time.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200202

Currentness_Reference:

Approximate date of LIDAR survey used to build the source data for this data set

Status:

Progress: complete

Maintenance_and_Update_Frequency: none planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -90.5625

East_Bounding_Coordinate: -90.5000

North_Bounding_Coordinate: +30.9375

South_Bounding_Coordinate: +30.8750

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: framework

Theme_Keyword: LIDAR

Theme_Keyword: elevation

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Louisiana

Place_Keyword: Rapides Parish

Access_Constraints: none

Use_Constraints:

These unaltered data may not be redistributed without all of the elements of the metadata listed in the Supplemental_Information section of this metadata document.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Watershed Concepts

Contact_Person: David Key, P.E.

Contact_Address:

Address_Type: Mailing and physical address

Address: 3333 Regency Parkway, Suite 120

City: Cary

State_or_Province: North Carolina

Postal_Code: 27511

Contact_Voice_Telephone: (919)868-5155

Native_Data_Set_Environment: ArcInfo 8.0.2 on Windows 2000

Data_Quality_Information:

Logical_Consistency_Report:

Inspection of these data reveals that some residual points from trees (especially on slopes) are present in the data.

Completeness_Report:

The data set includes only those data remaining for a 'bare earth' representation and that have not been otherwise eliminated as part of edit processing. These data consist of approximately 70% of the data originally present in the raw data set, raw_3009202ne.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Watershed Concepts

Publication_Date: 2003

Title:

Raw LIDAR Elevation Data, NE quadrant of Steep Gully quadrangle, Louisiana, UTM 15 NAD83, Louisiana Federal Emergency Management Agency (FEMA) Project - Phase 2 of Louisiana LIDAR Data Development: Rapides Parish, Louisiana under the Watershed Concepts contract number EMT-2002-CO-0048, Task Order 013. [raw_3009202ne]

Type_of_Source_Media: computer file

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200202

Source_Currentness_Reference:

Approximate date of LIDAR survey used to build the source data for this data set

Source_Citation_Abbreviation: RAW_3009202ne

Source_Contribution: Raw LIDAR data from which this data set was derived

Source_Information:

Source_Citation:

Citation_Information:

Originator: Watershed Concepts

Publication_Date: 2003

Title:

Hydrography Breakline Data, NE quadrant of Steep Gully quadrangle, Louisiana, UTM 15 NAD83, Louisiana Federal Emergency Management Agency (FEMA) Project - Phase 2 of Louisiana LIDAR Data Development: Rapides Parish, Louisiana under the Watershed Concepts contract number EMT-2002-CO-0048, Task Order 013. [bhy_3009202ne]

Type_of_Source_Media: computer file

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2003

Source_Currentness_Reference: Date of breakline data set production

Source_Citation_Abbreviation: BHY_3009202ne

Source_Contribution:

Used for elimination or adjustment of LIDAR points contained within or proximal to the breakline features.

Process_Step:

Process_Description:

RAW_3009202ne data was edited using ELVIS software to eliminate above-ground features such as buildings, trees and overpasses.

Process_Date: 2003

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: 3001, Inc.

Contact_Position: LIDAR Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 5525 Mounes, Suite 102

City: New Orleans

State_or_Province: LA

Postal_Code: 70123

Contact_Voice_Telephone: (504) 733-3001

Process_Step:

Process_Description:

The BHY_3009202ne data was applied to the data to remove points that were within water bodies of constant or nearly constant elevation and low points that were proximal to the hydrography breakline.

Process_Date: 2003

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: L:\Task13\metadata\Template\edited_template.xml

Time_of_Day: 16464400

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: entity point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 15

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -93.000000

Latitude_of_Projection_Origin: +00.000000

False_Easting: 500000

False_Northing: 0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.001

Ordinate_Resolution: 0.001

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988

Altitude_Resolution: 0.01

Altitude_Distance_Units: Survey Feet

Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: scp_3009202ne.pat

Entity_Type_Definition: attributes of points

Attribute:

Attribute_Label: elev (and column 3 of scp_3009202ne.csv)

Attribute_Definition:

elevation of point in survey feet, relative to the NAVD88 vertical datum

Attribute:

Attribute_Label: x-coord (and column 1 of scp_3009202ne.csv)

Attribute_Definition: UTM zone 15 easting in meters, NAD83

Attribute:

Attribute_Label: y-coord (and column 2 of scp_3009202ne.csv)

Attribute_Definition: UTM zone 15 northing in meters, NAD83

Metadata_Reference_Information:

Metadata_Date: 20030620

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: 3001, Inc.

Contact_Address:

Address_Type: mailing and physical address

Address: 5525 Mounes Street, Suite 102

City: New Orleans

State_or_Province: LA

Postal_Code: 70123

Contact_Voice_Telephone: (504) 733-3001

Contact_Facsimile_Telephone: (504) 733-8938

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998