PSU SVF Contour Lines - 10FT

• 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:The Pennsylvania State University

Publication_Date:2026

Title:

PSU SVF Contour Lines - 10FT

Geospatial_Data_Presentation_Form:vector digital data

Publication_Information:

Publication_Place:University Park, PA

Publisher:The Pennsylvania State University

Description:

Abstract:

Contour lines (10ft) for The Pennsylvania State University Stone Valley Experimental Forest. This dataset is derived from topographic contours mapped at an interval of 2 feet. Contours were derived from a bare-earth digital elevation model constructed from PAMAP LiDAR (Light Detection and Ranging) elevation points. PAMAP data are organized into blocks, which do not have gaps or overlaps, that represent 10,000 feet by 10,000 feet on the ground.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Currentness_Reference:

ground condition

Status:

Progress:Complete

Maintenance_and_Update_Frequency:Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -78.661

East_Bounding_Coordinate: -77.924

North_Bounding_Coordinate: 40.739

South_Bounding_Coordinate: 40.239

Keywords:

Theme:

Theme_Keyword_Thesaurus:None

Theme_Keyword:Contour

Theme_Keyword:DEM

Theme_Keyword:LiDAR

Theme_Keyword:LAS

Theme:

Theme_Keyword_Thesaurus:ISO 19115 Topic Category

Theme_Keyword:elevation

Place:

Place_Keyword_Thesaurus:None

Place_Keyword:Pennsylvania

Place_Keyword:Stone Valley

Access_Constraints:None

Use_Constraints:

The Originator, Publisher and Distributor exclude any and all implied warranties and make no warranty or representation with respect to the data files or accompanying documentation, including quality, performance, merchantability or fitness for a particular purpose. These data files and documentation are provided 'as is' and the User assumes the entire risk as to their quality and performance.  The Originator and Publisher, as indicated in the metadata, should be clearly cited in any product derived from this data. Any modifications to this data must be described in any digital or hardcopy product derived from this data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person:Brent Harding

Contact_Organization:The Pennsylvania State University

Contact_Position:Director

Contact_Address:

Address_Type:mailing and physical address

Address:

Dept. of Ecosystem Science and Mgmt

City:University Park

State_or_Province:PA

Postal_Code:16802

Country:USA

Contact_Voice_Telephone:814-865-7422

Contact_Electronic_Mail_Address:bah173@psu.edu

Hours_of_Service:

Data_Set_Credit:

PAMAP Program, Bureau of Topographic and Geologic Survey, PA Department of Conservation and Natural Resources

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.1.1332

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The accuracy of the ground control is confirmed by the evaluation of the results of the analytical bundle adjustment.  The residuals of the final adjustment ensured compliance with NSSDA standards.  The Pre Adjustment Gross Error Detection Statistical Test (Data Snooping, with a confidence level of 99.9%) have been applied to all observations included in the aerial triangulations. To detect small gross errors, during Adjustment Robust Estimators were used with the same confidence level and a power of the test of 1-beta=0.2. Systematic errors were eliminated through self calibration and through Additional Parameters. Their numerical stability, statistical significance, internal and external reliability were checked using Student-t test with the same confidence level and Variance/Co-variance analysis. Finally, the arrived variance factor C was submitted to a Chi-square test against the pre-adjustment variance factor using a confidence level 99.9%.  

The LiDAR flying height, field of view, laser repetition rate, aircraft speed, and the maximum baseline distances from the aerial platform to the ground based GPS stations have been fine tuned to ensure an RMSEz of the processed data at the 18.5 cm level for the bare earth surface as required by the FEMA guidelines.

See the PAMAP Technical Proposal dated January 11, 2006 for further QA/QC procedures.

Logical_Consistency_Report:

All files are inspected by the Production Manager to ensure that they conform to the specified file naming conventions, all files load in their correct geographic position, all files conform to the project specifications for file standard and content.

Completeness_Report:

All files are visually inspected for completeness to ensure that no gaps or misplacement exists in the data.  The files have been checked to ensure that the boundary and the content has been covered in its entirety.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The horizontal accuracy standard follows the NSSDA-1998 standard.  The maximum permissible RMSE for 95% of the horizontal check points for the mapping product is 5 feet or better.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

The LiDAR points have a 1.4 meter average point spacing (2 meter maximum) with a vertical accuracy of 18.5 cm RMSE for the bare earth surface.  Vertical accuracies in vegetated areas will meet 37 cm RMSE.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:RETTEW Associates, Inc.

Publication_Date:20060424

Title:

GPS Photo Control Survey

Type_of_Source_Media:CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date:20060424

Source_Currentness_Reference:

ground condition

Source_Citation_Abbreviation:

GPS Ground Control

Source_Contribution:

GPS control points are used to support the acquisition of the imagery and LiDAR data.  Photo identifiable ground control points (panels) based on the control plan are utilized in the analytical aerotriangulation process.  A number of "blind-point" panels were established and used during the QA/QC check of the orthophotos, LiDAR data and contour information.  All horizontal and vertical control was prepared under the supervision of licensed Professional Land Surveyors.

Source_Information:

Source_Citation:

Citation_Information:

Originator:Photo Science, Inc.

Publication_Date:20070430

Title:

LiDAR

Type_of_Source_Media:disc

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date:20070430

Source_Currentness_Reference:

ground condition

Source_Citation_Abbreviation:

Raw LiDAR

Source_Contribution:

LiDAR elevation data used in the creation of the terrain surface.

Process_Step:

Process_Description:

Horizontal and Vertical control points were acquired utilizing GPS collection techniques.  All control was prepared under the supervision of licensed Professional Land Surveyors.

Process_Date:20060424

Source_Produced_Citation_Abbreviation:

GPS Ground Control

Process_Step:

Process_Description:

LiDAR collection and processing generally adhered to FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix A: Guidance for Aerial Mapping & Surveying, Section A.8: Airborne Light Detection and Ranging (LiDAR) Surveys.  Raw LiDAR data was collected using a sensor equipped with an airborne GPS/IMU system.  Flight lines with a 30% sidelap were flown with a nominal average LiDAR point spacing of 1.4 meters using a 43 degree field of view (full angle) at a laser pulse rate of 40.6 kHz.  The raw LiDAR data is processed and filtered to remove LiDAR points on elevated features such as vegetation, buildings, cars, etc. in order to create a bare earth surface meeting the accuracies required for orthophoto and contour generation.

Source_Used_Citation_Abbreviation:

Raw LiDAR

Source_Used_Citation_Abbreviation:

GPS Ground Control

Process_Date:20080624

Source_Produced_Citation_Abbreviation:

Processed LiDAR

Process_Step:

Process_Description:

Metadata imported.

Source_Used_Citation_Abbreviation:

X:\783_PAMAP_2007\Lidar\Docs\Metadata_Templates\pas03_CONTOUR_metadata.xml

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method:Point

Point_and_Vector_Object_Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method:coordinate pair

Coordinate_Representation:

Abscissa_Resolution:1.4

Ordinate_Resolution:1.4

Planar_Distance_Units:meters

Geodetic_Model:

Horizontal_Datum_Name:North American Datum of 1983

Ellipsoid_Name:Geodetic Reference System 80

Semi-major_Axis:6378137.000000

Denominator_of_Flattening_Ratio:298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name:North American Vertical Datum of 1988

Altitude_Resolution:0.000000

Altitude_Distance_Units:feet

Altitude_Encoding_Method:Implicit coordinate

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:Contour_Lines_SVF_10m

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:CONTOUR_TY

Attribute:

Attribute_Label:ELEVATION

Attribute:

Attribute_Label:Shape_Leng

Overview_Description:

Entity_and_Attribute_Overview:

Each LAS file contains the following fields for each point:  Class; Northing; Easting; Elevation; Intensity; Flight Line #; Echo Number; Echo Type.

The class field is defined as:  

Class 1 (Default) - These are the points that are a mixture of the remaining points after the ground classification.  These would contain cars, buildings, parts of vegetation, etc.

Class 2 (Ground) - These are points on the bare earth surface.  They are from the automated processing, as well as the manual surface review.

Class 8 (Model Key) - These are the educated, thinned points to represent the final bare earth surface.  This is from our automated processing.  These are the points that we have used to generate the final contours.

Class 9 (Water) - These are points inside of hydrographic features, as collected by photogrammetric methods.  These are from automated processing, as well as the manual surface review.

Class 12 (Non-Ground) - These are points that are identified as first of many return or intermediate of many returns from the LiDAR pulse.  These are points that are most likely vegetation returns or points identified to be not on the ground surface.

Class 15 (Road Edges) - These are the points that fall within +/- 1.5' of road break lines.

Entity_and_Attribute_Detail_Citation:

Where applicable, all data conforms to the PAMAP Technical Proposal dated January 11, 2006.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Organization:Pennsylvania Spatial Data Access (PASDA)

Contact_Address:

Address_Type:mailing and physical address

Address:

Pennsylvania Spatial Data Access (PASDA)

Address:

Penn State Institutes of Energy and the Environment

Address:

115 Land and Water Building

City:University Park

State_or_Province:PA

Postal_Code:16802

Country:USA

Contact_Voice_Telephone:814-863-0104

Contact_Electronic_Mail_Address:pasda@psu.edu

Resource_Description:Downloadable Data

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size:26.937

Metadata_Reference_Information:

Metadata_Date:20080724

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:PAMAP Program, PA Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey

Contact_Person:

Contact_Position:Director

Contact_Address:

Address_Type:mailing and physical address

Address:

PAMAP Program

City:Middletown

State_or_Province:PA

Postal_Code:17057

Country:USA

Contact_Voice_Telephone:(717) 702-2017

Contact_Electronic_Mail_Address:RA-PAMAP@state.pa.us

Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version:FGDC-STD-001-1998

Metadata_Time_Convention:local time