ir5_nn

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator: Jones Edmunds & Associates

Publication_Date: 20090415

Title: ir5_nn

Geospatial_Data_Presentation_Form: raster digital data

Online_Linkage:

\\Gismain1\FDEM1\FDEM\USGS_DEM\USGS_IndianRiver\IndianRiver_DEM\ir5_nn

Description:

Abstract:

Raster grids provide a 2-dimensional representation of the earth's surface. This raster grid is derived from a terrain dataset created from LiDAR data flown from July 2007 to August 2007 by Woolpert Inc.

Purpose:

Raster grid contains information that will be used to create hydraulic and hydrologic models.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date:

REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.

Range_of_Dates/Times:

Beginning_Date: 20070717

Beginning_Time: unknown

Ending_Date: 20070809

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -80.617825

East_Bounding_Coordinate: -80.307202

North_Bounding_Coordinate: 27.868259

South_Bounding_Coordinate: 27.550730

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: LIDAR

Theme_Keyword: Digital Terrain Model (DTM)

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Florida

Place_Keyword: Indian River County

Access_Constraints:

The data are being provided on an 'as is' basis. Jones Edmunds specifically disclaims any warranty, expressed or implied, including, but not limited to, the implied warranties or merchantability and fitness for a particular use. The entire risk as to quality and performance is with the user. In no event will Jones Edmunds or its staff be liable for any direct, indirect, incidental, special, consequential, or other damages, including loss of profit, arising out of the use of these data even if the Jones Edmunds has been advised of the possibility of such damages. All data are intended for resource management use.

Use_Constraints:

Use of these data requires a general understanding of GIS. Translation of files to formats other than those described here is the sole responsibility of individuals downloading the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Jones Edmunds & Associates

Contact_Address:

Address_Type: mailing and physical address

Address: 730 NE Waldo Road

City: Gainesville

State_or_Province: Florida

Postal_Code: 32641

Country: USA

Contact_Voice_Telephone: 352.377.5821

Hours_of_Service: 8am-5pm

Contact_Instructions: telephone

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: DEM data

Logical_Consistency_Report: The data should be complete without any gaps.

Completeness_Report: Complete

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: created from LiDAR data that should meet 3.8 foot (2.2 ft RMSE)

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

created from LiDAR data that should meet .6 foot fundamental vertical accuracy

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Florida DEM

Originator: Woolpert, Inc.

Publication_Date: 20080327

Publication_Time: Unknown

Title: Contract 07-HS-34-14-00-22-469

Geospatial_Data_Presentation_Form: model

Type_of_Source_Media: disc

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20080327

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Laser

Source_Contribution: Onboard Laser

Process_Step:

Process_Description:

LiDAR was collected within portions of Indian River County. System Parameters/Flight Plan: The LiDAR system acquisition parameters were developed based on a maximum average ground sample distance of 4 feet. Two Leica ALS50 sensors were used for acquisition. Acquisition specifications for the two sensors were as follows: Sensor 19 Field of View (full angle) - 29 degrees Nominal flight altitude (AMSL) - 3999.30 feet Airspeed - 54.02 meters/sec Laser pulse rate - 75,000 Hz Nominal swath width (on ground) - 2068.58 feet Maximum cross track point spacing - 3.91 feet Maximum along track point spacing - 3.94 feet Average point spacing - 2.21 feet Flight line spacing - 1544.95 feet Side overlap - 25.31 percent Sensor 59 Field of View (full angle) - 29 degrees Nominal flight altitude (AMSL) - 3999.30 feet Airspeed - 60.70 meters/sec Laser pulse rate - 84,400 Hz Nominal swath width (on ground) - 2068.58 feet Maximum cross track point spacing - 3.94 feet Maximum along track point spacing - 3.91 feet Average point spacing - 2.21 feet Flight line spacing - 1413.72 feet Side overlap - 31.66 percent. LiDAR System Calibration: Prior to the LiDAR acquisition, the system underwent a calibration to verify the operational accuracy and misalignment angles. Boresight calibrations were performed for each LiDAR system at the beginning and end of each flight mission. LiDAR Data Acquisition: LiDAR data acquisition only occurred when the sky was sufficiently clear of clouds, smoke, and atmospheric haze. The LiDAR data was processed immediately after the acquisition to verify the coverage had no voids. GPS/Inertial Measurement Unit (IMU) Post Processing: The GPS and IMU data was post processed using differential and Kalman filter algorithms to derive a best estimate of trajectory. The quality of the solution was verified to be consistent with the accuracy requirements of the project. LiDAR Processing and Classification: The LiDAR data was post processed and verified to be consistent with the project requirements in terms of post spacing and absence of artifacts. The point cloud underwent classification to determine bare-earth points (class 2), noise points (class 7), water returns (class 9), and unclassified data (class 1). Class 12 contains LiDAR points removed from the overlap region between adjacent flight lines.

Process_Date: 20090105

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Woolpert, Inc.

Contact_Person: Richard R. Hudson, PE, PSM, CP

Contact_Position: Project Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 3504 Lake Lynda Drive, Suite 400

City: Orlando

State_or_Province: Florida

Postal_Code: 32817

Country: USA

Contact_Voice_Telephone: 407-381-2192

Contact_Facsimile_Telephone: 407-384-1185

Contact_Electronic_Mail_Address: www.woolpert.com

Hours_of_Service: 8:00-5:00

Contact_Instructions: Monday-Friday

Process_Step:

Process_Description:

The Airborne Global Positioning System (ABGPS), inertial measurement unit (IMU), and raw scans are collected during the LiDAR aerial survey. The ABGPS monitors the xyz position of the sensor and the IMU monitors the orientation. During the aerial survey laser pulses reflected from features on the ground surface are detected by the receiver optics and collected by the data logger. GPS locations are based on data collected by receivers on the aircraft and base stations on the ground. The ground base stations are placed no more than 20 mile radius from the flight survey area.

Source_Used_Citation_Abbreviation: Leica ALS50

Source_Used_Citation_Abbreviation: Inertial Measuring Unit

Source_Used_Citation_Abbreviation: Airborne Global Positioning System

Source_Used_Citation_Abbreviation: Global Positioning System

Process_Date: 20090105

Source_Produced_Citation_Abbreviation: LiDAR Scan Files

Source_Produced_Citation_Abbreviation: GPS data

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Woolpert, Inc.

Contact_Person: Richard R. Hudson, PE, PSM, CP

Contact_Position: Project Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 3504 Lake Lynda Drive, Suite 400

City: Orlando

State_or_Province: Florida

Postal_Code: 32817

Country: USA

Contact_Voice_Telephone: 407-381-2192

Contact_Facsimile_Telephone: 407-384-1185

Contact_Electronic_Mail_Address: www.woolpert.com

Hours_of_Service: 8:00-5:00

Contact_Instructions: Monday-Friday

Process_Step:

Process_Description:

The ABGPS, IMU, and raw scans are integrated using proprietary software developed by the Leica Geosystems and delivered with the Leica ALS50 System. The resultant file is in a LAS binary 1.1 file format. The LAS file format can be easily transferred from one file format to another. It is a binary file format that maintains information specific to the LiDAR data (return#, intensity value, xyz, etc.). The resultant points are produced in the Florida State Plane East Zone coordinate system, with units in feet and referenced to the NAD83/90 HARN horizontal datum and NAVD88 vertical datum.

Source_Used_Citation_Abbreviation: Airborne Global Positioning System

Source_Used_Citation_Abbreviation: Inertial Measurement Unit

Source_Used_Citation_Abbreviation: LiDAR data

Process_Date: 20090105

Source_Produced_Citation_Abbreviation: FDEM

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Richard R. Hudson, PE, PSM, CP

Contact_Organization: Woolpert, Inc.

Contact_Position: Project Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 3504 Lake Lynda Drive, Suite 400

City: Orlando

State_or_Province: Florida

Postal_Code: 32817

Country: USA

Contact_Voice_Telephone: 407-381-2192

Contact_Facsimile_Telephone: 407-384-1185

Contact_Electronic_Mail_Address: www.woolpert.com

Hours_of_Service: 8:00-5:00

Contact_Instructions: Monday-Friday

Process_Step:

Process_Description:

The unedited data are classified to facilitate the application of the appropriate feature extraction filters. Interactive editing methods are applied to those areas where it is inappropriate or impossible to use the feature extraction filters, based upon the design criteria and/or limitations of the relevant filters. These same feature extraction filters are used to produce elevation height surfaces. Point classification: Class1 = Unclassified, Class2 = Ground, Class7 = Noise, Class9 = Water, Class12 = Overlap

Process_Date: 20090105

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Richard R. Hudson, PE, PSM, CP

Contact_Organization: Woolpert, Inc.

Contact_Position: Project Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 3504 Lake Lynda Drive, Suite 400

City: Orlando

State_or_Province: Florida

Postal_Code: 32817

Country: USA

Contact_Voice_Telephone: 407-381-2192

Contact_Facsimile_Telephone: 407-384-1185

Contact_Electronic_Mail_Address: www.woolpert.com

Hours_of_Service: 8:00-5:00

Contact_Instructions: Monday-Friday

Process_Step:

Process_Description:

Filtered LiDAR and vector data are subjected to rigorous QA/QC procedures designed by Woolpert. Stereo imagery was created from the LiDAR surface and orthophoto imagery using GeoCue software. From these stereo images, or LiDARgrammetry, breakline features were collected along linear topographic features as required. Breakline elevations were linearly ramped between identified critical elevation points.

Source_Used_Citation_Abbreviation: LiDAR data LAS 1.1 format

Process_Date: 20090105

Source_Produced_Citation_Abbreviation: 3-D breaklines

Source_Produced_Citation_Abbreviation: Classified filtered LiDAR data

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Richard R. Hudson, PE, PSM, CP

Contact_Organization: Woolpert, Inc.

Contact_Position: Project Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 3504 Lake Lynda Drive, Suite 400

City: Orlando

State_or_Province: Florida

Postal_Code: 32817

Country: USA

Contact_Voice_Telephone: 407-381-2192

Contact_Facsimile_Telephone: 407-384-1185

Contact_Electronic_Mail_Address: www.woolpert.com

Hours_of_Service: 8:00-5:00

Contact_Instructions: Monday-Friday

Process_Step:

Process_Description:

A breakline enforced terrain was created in ArcCatalog using the vector breakline data and masspoints from the Indian River County delivery area.

Process_Date: 052009

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Jones Edmunds & Associates

Contact_Address:

Address_Type: mailing and physical address

Address: 730 NE Waldo Road

City: Gainesville

State_or_Province: Florida

Postal_Code: 32641

Country: USA

Contact_Voice_Telephone: 352.377.5821

Process_Step:

Process_Description:

The DEM was created using ArcCatalog's 'Terrain to Raster' tool. 'Natural_Neighbors' was chosen as the sampling method and a cell size of 5 feet was designated.

Process_Date: 052009

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Jones Edmunds & Associates

Contact_Address:

Address_Type: mailing and physical address

Address: 730 NE Waldo Road

City: Gainesville

State_or_Province: Florida

Postal_Code: 32641

Country: USA

Contact_Voice_Telephone: 352.377.5821

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: c:\temp\xml2B1.tmp

Process_Date: 20090415

Process_Time: 15493000

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: c:\temp\xml305.tmp

Process_Date: 20090415

Process_Time: 17251100

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: c:\temp\xml607.tmp

Process_Date: 20090604

Process_Time: 09440700

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid Cell

Row_Count: 23001

Column_Count: 20001

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Transverse Mercator

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999941

Longitude_of_Central_Meridian: -81.000000

Latitude_of_Projection_Origin: 24.333333

False_Easting: 656166.666667

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 5.000000

Ordinate_Resolution: 5.000000

Planar_Distance_Units: survey feet

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

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: 0.000328

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: United States Geological Survey

Contact_Position: GIS

Contact_Address:

Address_Type: mailing and physical address

Address: 2010 Levy Ave

City: Tallahassee

State_or_Province: FL

Postal_Code: 32310

Contact_Voice_Telephone: (850) 942-9500

Contact_Facsimile_Telephone: (850) 942-9521

Hours_of_Service: 8:00 am to 5:00 pm

Resource_Description: Downloadable Data

Distribution_Liability:

The data are being provided on an 'as is' basis. Jones Edmunds specifically disclaims any warranty, expressed or implied, including, but not limited to, the implied warranties or merchantability and fitness for a particular use. The entire risk as to quality and performance is with the user. In no event will Jones Edmunds or its staff be liable for any direct, indirect, incidental, special, consequential, or other damages, including loss of profit, arising out of the use of these data even if Jones Edmunds has been advised of the possibility of such damages. All data are intended for resource management use.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Geodatabase

Transfer_Size: 1799.827

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: unknown

Offline_Option:

Offline_Media: CD-ROM

Recording_Format: ISO9660

Fees: fee unknown

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 200904

Metadata_Reference_Information:

Metadata_Date: 20090604

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Jones Edmunds & Associates

Contact_Person: GIS Department Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 730 NE Waldo Road

City: Gainesville

State_or_Province: Florida

Postal_Code: 32641

Contact_Voice_Telephone: 352.377.5821

Contact_Facsimile_Telephone: 352.377.3166

Hours_of_Service: 8am-5pm

Contact_Instructions: telephone

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints:

The data are being provided on an 'as is' basis. Jones Edmunds specifically disclaims any warranty, expressed or implied, including, but not limited to, the implied warranties or merchantability and fitness for a particular use. The entire risk as to quality and performance is with the user. In no event will Jones Edmunds or its staff be liable for any direct, indirect, incidental, special, consequential, or other damages, including loss of profit, arising out of the use of these data even if Jones Edmunds has been advised of the possibility of such damages. All data are intended for resource management use.

Metadata_Use_Constraints:

Use of these data requires a general understanding of GIS. Translation of files to formats other than those described here is the sole responsibility of individuals downloading the data.