Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey, Alabama Water Science Center Title: Alabama_River_LIDAR_A Edition: first Geospatial_Data_Presentation_Form: vector digital data Description: Abstract: A terrestrial laser scanner was utilized by the U.S. Geological Survey to provide topographic data of selected sites near the Alabama River near Montgomery, Alabama, USA. Data were collected in March and April 2013 using an Optech ILRIS laser scanner in conjunction with an Applanix position and orientation system mounted on a vehicle. Purpose: The purpose of this project was to provide topographic survey data of selected sites near the Alabama River in Montgomery, Alabama USA to the National Weather Service in Birmingham Alabama for inclusion in a flood inundation model. Supplemental_Information: Additional information about field techniques and data collection procedures can be found by contacting Dustin R. Kimbrow, USGS Alabama Water Science Center, 75 Technacenter Dr., Montgomery, AL, 36117. Status: Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 558650.000 East_Bounding_Coordinate: 556270.000 North_Bounding_Coordinate: 3585960.000 South_Bounding_Coordinate: 3581160.000 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: inlandWaters Theme_Keyword: elevation Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: topography Theme_Keyword: LiDAR Theme_Keyword: mobile mapping Theme_Keyword: laser scanning Theme_Keyword: geoscientific information Theme_Keyword: United States Theme_Keyword: Alabama Theme_Keyword: U.S. Geological Survey Theme_Keyword: 2013 Access_Constraints: None Use_Constraints: The U.S. Geological Survey requests to be acknowledged as the originator of these data in future products or derivative research. Data_Set_Credit: Acknowledgment of the U.S. Geological Survey, Alabama Water Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.4.4000 Data_Quality_Information: Logical_Consistency_Report: These geospatial data are in shapefile format. These data are qualitatively named based on the location (e.g. Alabama River) and collection method (e.g. LiDAR). Completeness_Report: Typical resolution of the point cloud dataset is 10 meters however there are some areas in the dataset where resolution is greater or less. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal coordinate RMS error is +/- 5 cm at 2 sigma. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical coordinate RMS error is +/- 0.035 m at 2 sigma. Lineage: Process_Step: Process_Description: T-LiDAR data were collected from a vehicle and processed using Optech Parser. Trajectory data were also collected and processed using Applanix PospacMMS mobile mapping software. This software utilizes GPS and inertial measurements to correct for heave, pitch, and roll movements. Angular offsets were corrected using a boresight procedure. Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dustin R. Kimbrow Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 4879 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Alabama_River_LIDAR_A 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: Id Attribute: Attribute_Label: POINT_X Attribute_Definition: UTM Easting coordinate Attribute: Attribute_Label: POINT_Y Attribute_Definition: UTM Northing coordinate Attribute: Attribute_Label: POINT_Z Attribute_Definition: NAVD88 elevation value Attribute: Attribute_Label: POINT_M Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Dustin R. Kimbrow Distribution_Liability: Although this dataset has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials.The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Reference made to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Metadata_Reference_Information: Metadata_Date: 20131028 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Alabama Water Science Center Contact_Person: Dustin R. Kimbrow Contact_Position: Geographer Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Security_Information: Metadata_Security_Classification: Unclassified