Identification_Information: Citation: Citation_Information: Originator: University of Rhode Island Environmental Data Center Originator: Photo Science, Inc. Publication_Date: 20130330 Title: Hillshade Raster Surface; hillshade11 Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Kingston, Rhode Island Publisher: University of Rhode Island Environmental Data Center Other_Citation_Details: Suggested bibliographic reference: RIGIS, 2013. Hillshade Raster Surface; hillshade11. Rhode Island Geographic Information System (RIGIS) Data Distribution System, URL: http://www.edc.uri.edu/rigis, Environmental Data Center, University of Rhode Island, Kingston, Rhode Island (last date accessed: 25 July 2013). Larger_Work_Citation: Citation_Information: Originator: Rhode Island Geographic Information System (RIGIS) Publication_Date: 19930101 Title: Rhode Island Geographic Information System (RIGIS) Data Distribution System Online_Linkage: http://www.edc.uri.edu/rigis Description: Abstract: Statewide hillshade raster surface of Rhode Island derived from a derivative of a digital elevation model originally produced as part of the Northeast LiDAR Project in 2011. Purpose: Transportation planners and consultants in Rhode Island need ready access to accurate geospatial data to assist in the development of plans and bids for construction projects. These same data are of prime importance in evaluating the potential impacts of climate change, including the vulnerability of existing infrastructure to environmental hazards and sea level rise. Complete, accurate, and consistent high resolution elevation data is a key geospatial data layer used in these applications, yet these data remain largely inaccessible by the user community due to unique file structures and large file sizes. Supplemental_Information: 2010 saw the beginning of The Northeast Multiphase LiDAR Project. Across the region, the same problems were being addressed the almost total lack of contiguous, consistent, high-resolution elevation data. Coordinated by the USGS with representatives from each of the participating states, this work sought to collect seamless LiDAR data for all of the coastal counties between New York and Maine. With accuracies 25 100 times better than what is currently available for much of Rhode Island, a contiguous and consistent elevation dataset derived from this new data collection initiative will facilitate a number of statewide applications including transportation planning, floodplain mapping, and hazard mitigation. As part of this project, the contractor delivered to the State of Rhode Island raw and classified LiDAR points along with a hydro-flattened 1m digital elevation model (DEM). The DEM was delivered by the contractor in a UTM meters, NAD83, NAVD88 coordinate system. These data were reprojected to RI State Plane feet, NAD83 and vertical units were converted to feet. The NAVD88 vertical datum remained unchanged. This particular hillshade raster surface was generated using Esri ArcGIS 10.1 using the default parameters. A vertical exaggeration of 5x was applied. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20110422 Single_Date/Time: Calendar_Date: 20110426 Single_Date/Time: Calendar_Date: 20110429 Single_Date/Time: Calendar_Date: 20110430 Single_Date/Time: Calendar_Date: 20110501 Single_Date/Time: Calendar_Date: 20110502 Single_Date/Time: Calendar_Date: 20110506 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.930818 East_Bounding_Coordinate: -71.092048 North_Bounding_Coordinate: 42.036963 South_Bounding_Coordinate: 41.137523 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: elevation Theme_Keyword: LiDAR Theme_Keyword: digital elevation model Theme_Keyword: hillshade Place: Place_Keyword_Thesaurus: None Place_Keyword: Rhode Island Place_Keyword: New England Place_Keyword: New England Place_Keyword: United States Access_Constraints: Users are requested to abide by the terms of the RIGIS license agreement. License terms include (1) restrictions on secondary distribution of these data, and (2) graphic displays and printed tabular listings derived from RIGIS data may be used in publications and presentations, provided that credit is given to RIGIS as the source of the information be shown. Please review the RIGIS license agreement at http://www.edc.uri.edu/rigis/license.html for more information before accessing these data. Use_Constraints: These data are for visualization only and should not be used for analytical measures. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of Rhode Island Environmental Data Center Contact_Person: Christopher Damon Contact_Position: Research Associate Contact_Address: Address_Type: mailing and physical Address: Coastal Institute at Kingston Address: 1 Greenhouse Road City: Kingston State_or_Province: Rhode Island Postal_Code: 02881 Country: US Contact_Voice_Telephone: 401-874-2930 Contact_Electronic_Mail_Address: cdamon@edc.uri.edu Contact_Instructions: Email preferred. Data_Set_Credit: USGS, RIDOT Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The project area required LiDAR to be collected on 1.0 meter GSD or better and processed by Photo Science to meet a bare earth vertical accuracy of 15 centimeters RMSEz or better to support 2' contour. Logical_Consistency_Report: The source raster DEMs were tested by Photo Science for both vertical and horizontal accuracy. All data is seamless from one tile to the next, no gaps or no data areas. No further tests were conducted by the URI Environmental Data Center. Completeness_Report: Datasets contain complete coverage of tiles. Positional_Accuracy: Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Raster DEMs were tested by Photo Science for both vertical and horizontal accuracy. All data is seamless from one tile to the next, no gaps or no data areas. The vertical unit of the data file is in decimal meters with 2-decimal point precision. The reported RMSEz value was determined using the calibration control points, and not the Blind Control. The calibration control points are the same points that were used to remove any bias in the dataset before bare earth editing. The listed RMSEz value shown below was calculated from the ground (ASPRS Class 2) data in the final Classified LAS file. Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 0.22 Vertical_Positional_Accuracy_Explanation: RMSE in feet, as calculated from Classified LAS files by Photo Science. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: University of Rhode Island Environmental Data Center Originator: Photo Science, Inc. Publication_Date: 20130330 Title: Digital Elevation Model; DEM11 Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: Kingston, Rhode Island Publisher: University of Rhode Island Environmental Data Center Other_Citation_Details: Suggested bibliographic reference: RIGIS, 2013. Digital Elevation Model; DEM11. Rhode Island Geographic Information System (RIGIS) Data Distribution System, URL: http://www.edc.uri.edu/rigis, Environmental Data Center, University of Rhode Island, Kingston, Rhode Island (last date accessed: 25 July 2013). Larger_Work_Citation: Citation_Information: Originator: Rhode Island Geographic Information System (RIGIS) Publication_Date: 19930101 Title: Rhode Island Geographic Information System (RIGIS) Data Distribution System Online_Linkage: http://www.edc.uri.edu/rigis Type_of_Source_Media: digital raster data Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20110422 Single_Date/Time: Calendar_Date: 20110426 Single_Date/Time: Calendar_Date: 20110429 Single_Date/Time: Calendar_Date: 20110430 Single_Date/Time: Calendar_Date: 20110501 Single_Date/Time: Calendar_Date: 20110502 Single_Date/Time: Calendar_Date: 20110506 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: DEM11 Source_Contribution: elevation data Process_Step: Process_Description: The hillshade was generated from the source elevation surface using ArcGIS 10.1 and the default parameters. A vertical exaggeration of 5x was applied to enhance the relief for visualization. Process_Date: 20130330 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of Rhode Island Environmental Data Center Contact_Person: Christopher Damon Contact_Position: Research Associate Contact_Address: Address_Type: mailing and physical Address: Coastal Institute at Kingston Address: 1 Greenhouse Road City: Kingston State_or_Province: Rhode Island Postal_Code: 02881 Country: US Contact_Voice_Telephone: 401-874-2930 Contact_Electronic_Mail_Address: cdamon@edc.uri.edu Contact_Instructions: Email preferred. Process_Step: Process_Description: Data contributed to RIGIS by the University of Rhode Island Environmental Data Center. Provided dataset split into 10,000 x 10,000 ft tiles with approximately 50ft overlap between tiles. Metadata reviewed, updates made to formatting and content, RIGIS distribution information added. Process_Date: 201306 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of Rhode Island Environmental Data Center Contact_Person: Greg Bonynge Contact_Address: Address_Type: mailing and physical Address: 1 Greenhouse Road City: Kingston State_or_Province: RI Postal_Code: 02881 Contact_Voice_Telephone: 401-874-2180 Contact_Electronic_Mail_Address: greg@edc.uri.edu Contact_Instructions: email preferred Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Voxel Row_Count: 99809 Column_Count: 69453 Vertical_Count: 0 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD 1983 StatePlane Rhode Island FIPS 3800 Feet Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.99999375 Longitude_of_Central_Meridian: -71.5 Latitude_of_Projection_Origin: 41.08333333333334 False_Easting: 328083.3333333333 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000000007286382608384659 Ordinate_Resolution: 0.000000007286382608384659 Planar_Distance_Units: foot_us Geodetic_Model: Horizontal_Datum_Name: D North American 1983 Ellipsoid_Name: GRS 1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: VAT_hillshade Attribute: Attribute_Label: OBJECTID 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: Value Attribute: Attribute_Label: Count Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of Rhode Island Environmental Data Center Contact_Person: Greg Bonynge Contact_Address: Address_Type: mailing and physical Address: 1 Greenhouse Road City: Kingston State_or_Province: RI Postal_Code: 02881 Contact_Voice_Telephone: 401-874-2180 Contact_Electronic_Mail_Address: greg@edc.uri.edu Contact_Instructions: email preferred Distribution_Liability: No liability for these data is assumed by RIGIS, University of Rhode Island, and the Rhode Island Board of Governors for Higher Education. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ERDAS img Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://www.edc.uri.edu/rigis Fees: No fee for downloading directly from the RIGIS Data Distribution System located at http://www.edc.uri.edu/rigis. Metadata_Reference_Information: Metadata_Date: 20130529 Metadata_Review_Date: 20130725 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: University of Rhode Island Environmental Data Center Contact_Person: Christopher Damon Contact_Position: Research Associate Contact_Address: Address_Type: mailing and physical Address: Coastal Institute at Kingston Address: 1 Greenhouse Road City: Kingston State_or_Province: Rhode Island Postal_Code: 02881 Country: US Contact_Voice_Telephone: 401-874-2930 Contact_Electronic_Mail_Address: cdamon@edc.uri.edu Contact_Instructions: Email preferred. Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998