0c44c232-8a8f-4669-a448-c3eb15725a66_source eng; USA utf8 dataset Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs Colorado 80920-5358 sbenham@sanborn.com pointOfContact 2018-01-09 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) 2 row 10000 column 10000 area State of Arkansas 2018-01-09 publication Final Arkansas GIS Office originator imageDigital This metadata record describes the 30cm pixel resolution digital orthoimagery produced for the Arkansas GIS Office by the Sanborn Map Company. The orthoimagery provided is 4-band (R, G, B, NIR), 8-bit per pixel and delivered in section tiles in uncompressed TIFF/TFW, compressed SID/SDW (40:1) and compressed county wide SID mosaics (40:1) formats. The data was collected between January 23, 2017 and February 25, 2017 at an altitude range between 19089 and 20300 feet using an UltraCam Eagle camera. This orthoimagery is published in Universal Transverse Mercator Zone 15N, NAD 83, meters. Rectified orthoimagery for the Arkansas GIS Office may serve as a basemap for GIS applications. completed Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs Colorado 80920-5358 sbenham@sanborn.com pointOfContact notPlanned Ortho Photography Orthophotography Imagery theme None Arkansas Arkansas GIS Office place None None otherRestrictions Use Constraints: This data is meant for use by requested parties. This data cannot be used without express consent. otherRestrictions Access Constraints: This data may be used by the requested party for stated purposes and should not be re-distributed. eng; USA imageryBaseMapsEarthCover Native Dataset Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3549 -94.625 -89.625 33 36.5 2017-01-23 2018-01-09 false Entity and Attribute Information Entity and Attribute Overview: None for Raster Information Entity and Attribute Detail Citation: None for Raster Information 5 Digital unknown Matthew Delong Arkansas GIS Office Senior GIS Analyst 501-682-3710 1 Capitol Mall Ste 6D Little Rock Arkansas 72201 US distributor n/a dataset Horizontal Positional Accuracy Report This orthoimagery meets ASPRS Class 1 Accuracy Standards Horizontal Positional Accuracy Specification requires that data meet a 120 cm ' RMSE requirement. Points were surveyed and compared to location within the orthophoto and found meet this specification. meters 30cm RMSE Vertical Positional Accuracy Report N/A Vertical Positional Accuracy Orthoimagery does not have inherent vertical accuracy. meters 0.0 The ortho image tiles are checked for missing pixels, gaps, overlaps and other anomalies generally associated with digital orthophoto products. Any discrepencies in the ortho tiles are resolved through the use of proprietary and industry editing tools. Once the images are copied to the deliverable media they are further checked for naming, image completeness, and ability to be loaded in ArcMap. The ortho image tiles are checked for missing pixels, gaps, overlaps and other anomalies generally associated with digital orthophoto products. Any discrepencies in the ortho tiles are resolved through the use of proprietary and industry editing tools. Once the images are copied to the deliverable media they are further checked for naming, image completeness, and ability to be loaded in ArcMap. Since the ortho images are raster products, the logical consistency is based on how well the images fit between image tiles and between individual photo frames used to produce the ortho mosaics. The images match within four pixels of each other through out the project area. Quantitative Attribute Accuracy Assessment Attribute accuracy does not apply to orthoimagery. N/A meters N/A This lineage was generated by the FGDC CSDGM to 19139 transformation Image acquisition by Sanborn Map Company occurred between January 23, 2017 and February 25, 2017 using a UltraCam Eagle Camera. Imagery and GPS/IMU data is downloaded from disc on the plane to disc on the ground. GPS/IMU mission data is processed together with simultaneously collected ground-based GPS base station data in forward and reverse directions. This precisely determines the aerial camera's position and orientation in the terrain (project) coordinate system and allows for correct orientation of the imagery. 2017-02-25T00:00:00 Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs CO 80920 US sbenham@sanborn.com 8:00 AM - 5:00 PM M-F processor Using the processed GPS/IMU data and correctly oriented imagery, a bundle adjustment is computed (AT). 2017-03-04T00:00:00 Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs CO 80920 US sbenham@sanborn.com 8:00 AM - 5:00 PM M-F processor DEM Review/Updating. The LiDAR surface is reviewed and updated as needed to meet the final orthorectification standards set in this project. 2017-04-30T00:00:00 Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs CO 80920 US sbenham@sanborn.com 8:00 AM - 5:00 PM M-F processor Orthoimagery is rectified using the AT solution and LiDAR. Once rectified, the orthoimagery is colorbalanced to the acceptable parameters established by the customer. Orthoimagery then undergoes manual quality control to check for issues as outlined in the Digital Orthoimagery Acceptance Criteria document. Issues such as warps, smears, misalignments, etc. are corrected using proprietary tools and Adobe PhotoShop. Upon completion of the QC process, the orthos are provided to the client for review in uncompressed TIFF/TFW. 2017-10-31T00:00:00 Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs CO 80920 US sbenham@sanborn.com 8:00 AM - 5:00 PM M-F processor Source Contribution: Geodetic ground control is used to create a digital control file and control report as well as QC check of ortho accuracy. Predefined points within the project area are targeted and photo-identifiable locations are measured. These points along with their precise coordinates are used in the AT process and to check the horizontal accuracy of the resulting orthophotos.Source Type: None Ground Control publication Sanborn Map Co., Inc. originator mapDigital 2017-03-04 Source Contribution: Raw Aerial Imagery - UltraCam Eagle Digital Aerial Camera, Sanborn Map Company. Imagery and GPS/IMU data is downloaded from disc on the plane to disc on the ground. GPS/IMU mission data is processed together with simultaneously collected ground-based GPS base station data in forward and reverse directions. This precisely determines the aerial camera's position and orientation in the terrain (project) coordinate system and allows for correct orientation of the imagery.Source Type: None Aerial Imagery publication Sanborn Map Co., Inc. originator RASTER DATA 2017-01-23 2017-02-25 Source Contribution: LiDAR dataSource Type: None LiDAR publication Sanborn Map Co., Inc. originator VECTOR DATA 2017-04-30 otherRestrictions Metadata Use Constraints: This data is meant for use by requested parties. This data cannot be used without express consent. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Shawn Benham Sanborn Map Co., Inc. Project Manager 719-502-1296 1935 Jamboree Drive, Suite 100 Colorado Springs Colorado 80920-5358 sbenham@sanborn.com pointOfContact