Identification_Information: Citation: Citation_Information: Originator: JALBTCX Publication_Date: 20060424 Publication_Time: 22412979Z Title: ASCII XYZ (Hydro/Last Return) Edition: 2006 Series_Information: Series_Name: 2006_NCMP_SC_001g_HTL Issue_Identification: 2006 Publication_Information: Publication_Place: San Diego, CA Publisher: Fugro Pelagos, Inc. Larger_Work_Citation: Citation_Information: Series_Information: Publication_Information: Description: Abstract: The U.S. Army Corps of Engineers collects (by themselves and contractors) and maintains LiDAR data including orthophotos in coastal areas of the United States and its territories. The Corps acquires this data in the course of performing its mission of Flood Control, Navigation, Environmental Engineering, and support for the Army and others. These data were collected using a SHOALS-1000T hydrographic and topographic LIDAR sensor. Hydrographic: Altitude 300m, Spot Spacing 5m x 5m Topographic: Altitude 500m, Spot Spacing 1.3m x 1.4m Purpose: The purpose of this survey was to obtain the existing conditions of the beach and near shore in support of the Joint Airborne LIDAR Bathymetric Technical Center of Expertise National Coastal mapping Program. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Range_of_Dates/Times: Beginning_Date: 20051211 Ending_Date: 20060113 Multiple_Dates/Times: Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -078.603767 East_Bounding_Coordinate: -078.551036 North_Bounding_Coordinate: 33.855262 South_Bounding_Coordinate: 33.840685 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: LiDAR Theme_Keyword: Bathymetry Theme_Keyword: Topography Theme_Keyword: ASCII XYZ (Hydro/Last Return) Theme_Keyword: Survey Place: Place_Keyword_Thesaurus: Geographic Names Information System Place_Keyword: South Carolina Place_Keyword: Atlantic Place_Keyword: United States Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Surface Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2006 Access_Constraints: None Use_Constraints: These data depict the heights at the time of the survey and are only accurate for that time. Acknowledgement of the Joint Airborne LIDAR Bathymetry Center of Expertise (JALBTCX) would be appreciated in any publications or derived products. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization_Primary: Contact_Organization: JALBTCX Contact_Address: Address_Type: mailing and physical address Address: 7225 Stennis Airport Road, STE100 City: Kiln State_or_Province: MS Postal_Code: 39556 Country: USA Contact_Voice_Telephone: (228) 252-1103 Hours_of_Service: 8 am to 5 pm Monday through Friday Data_Set_Credit: Fugro Pelagos, Inc. Security_Information: Native_Data_Set_Environment: ASCII XYZ Cross_Reference: Citation_Information: Series_Information: Publication_Information: Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: N/A Logical_Consistency_Report: See Process Step Completeness_Report: See Process Step Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The data has been collected and compiled to meet the +/- 3m (2 sigma) accuracy specification. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The data has been collected and compiled to meet the +/- 30cm (2 sigma) accuracy specification. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Publication_Date: 20060424 Publication_Time: 22412981Z Title: ASCII XYZ (Hydro/Last Return) Edition: 2006 Series_Information: Series_Name: 2006_NCMP_SC_001g_HTL Issue_Identification: 2006 Publication_Information: Publication_Place: San Diego, CA Publisher: Fugro Pelagos, Inc. Larger_Work_Citation: Citation_Information: Series_Information: Publication_Information: Source_Scale_Denominator: N/A Type_of_Source_Media: Digital Data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Range_of_Dates/Times: Beginning_Date: Ending_Date: Multiple_Dates/Times: Source_Currentness_Reference: Ground Condition Source_Citation_Abbreviation: JALBTCX Source_Contribution: Fugro Pelagos, Inc. Process_Step: Process_Description: Acquisition Data were acquired using a SHOALS-1000T. Sensor orientation was measured using a POS AV 410, while images were acquired at 1Hz using a Duncantech DT4000 digital camera. Prior to survey PDOP was checked and missions planned to avoid PDOP greater than 3.5. During survey the plane was always within 30km of a GPS ground control point, to provide a good quality position solution. Final positions were determined using a post-processed inertially aided Kinematic GPS (KGPS) solution. GPS ground control data were acquired at 1Hz. Data received by the airborne system were continually monitored for data quality during acquisition operations. Display windows showed coverage and information about the system status. In addition, center waveforms at 5Hz were shown. All of this information allowed the airborne operator to assess the quality of data being collected. Data were processed in the field to very coverage and data quality. Processing Data were processed using the SHOALS Ground Control System (GCS). The GCS includes links to Applanix POSPac software for GPS and inertial processing, and IVS Fledermaus software for data visualization, 3D editing and tie-line analysis. Data were processed in NAD83 horizontal and vertical datum. Data were later converted to the NAVD88 vertical datum using the GEOID03 model. Fugro in-house utilities were used to extract XYZ data from the native LIDAR files and split the data in to pre-defined boxes, each covering approximately 5km of shoreline. ASCII files include Longitude Latitude Elevation Date Time Intensity (Topo) or Depth Confidence (Hydro). Process_Date: 20060424 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization_Primary: Contact_Organization: Fugro Pelagos, Inc. Contact_Person: Carol Lockhart Contact_Position: Hydrographic LIDAR Technical Manager Contact_Address: Address_Type: mailing and physical address Address: 3738 Ruffin Road City: San Diego State_or_Province: CA Postal_Code: 92123 Country: USA Contact_Voice_Telephone: (858) 292-8922 Hours_of_Service: 8 am to 5 pm Monday through Friday Spatial_Data_Organization_Information: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00000001 Longitude_Resolution: 0.00000001 Geographic_Coordinate_Units: Degree Geodetic_Model: Horizontal_Datum_Name: GCS_North_American_1983 Ellipsoid_Name: GRS_1980 Semi-major_Axis: 6378137.000 Denominator_of_Flattening_Ratio: 0.003352811 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: NAVD88 Altitude_Resolution: 0.01 Altitude_Distance_Units: Meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Depth_System_Definition: Depth_Datum_Name: NAVD88 Depth_Resolution: 0.01 Depth_Distance_Units: Meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Attribute: Attribute_Domain_Values: Attribute_Value_Accuracy_Information: Overview_Description: Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Organization_Primary: Contact_Organization: JALBTCX Contact_Address: Address_Type: mailing and physical address Address: 7225 Stennis Airport Road, STE100 City: Kiln State_or_Province: MS Postal_Code: 39556 Country: USA Contact_Voice_Telephone: (228) 252-1103 Hours_of_Service: 8 am to 5 pm Monday through Friday Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Dialup_Instructions: OffLine_Option: Recording_Capacity: Available_Time_Period: Time_Period_Information: Single_Date/Time: Range_of_Dates/Times: Multiple_Dates/Times: Metadata_Reference_Information: Metadata_Date: 20060424 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Organization_Primary: Contact_Organization: Fugro Pelagos, Inc. Contact_Person: Carol Lockhart Contact_Position: Hydrographic LIDAR Technical Manager Contact_Address: Address_Type: mailing and physical address Address: 3738 Ruffin Road City: San Diego State_or_Province: CA Postal_Code: 92123 Country: USA Contact_Voice_Telephone: (858) 292-8922 Hours_of_Service: 8 am to 5 pm Monday through Friday Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Universal time Metadata_Security_Information: