20181213 17073600 1.0 FGDC CSDGM Metadata FALSE Salinas_255.sid 5773574.999948 5807894.999948 2124159.000059 2163759.000059 1 002 Projected GCS_North_American_1983 Linear Unit: Foot_US (0.304801) NAD_1983_California_zone_4_ftUS <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/2.8.0'><WKT>PROJCS["NAD_1983_California_zone_4_ftUS",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["false_easting",6561666.667],PARAMETER["false_northing",1640416.667],PARAMETER["central_meridian",-119.0],PARAMETER["standard_parallel_1",36.0],PARAMETER["standard_parallel_2",37.25],PARAMETER["latitude_of_origin",35.33333333333334],UNIT["Foot_US",0.3048006096012192]]</WKT><XOrigin>-116466200</XOrigin><YOrigin>-92735300</YOrigin><XYScale>36606342.607551828</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.0032808333333333331</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision></ProjectedCoordinateSystem> 8 FALSE Wavelet (MG4) 5 MrSID TRUE continuous unsigned integer 256 20210917 11294400 20210917 11362800 50000 5000 ItemDescription Quantum Spatial, Inc. 859-277-8700 859-277-8901 523 Wellington Way Lexington KY 40503 US Monday through Friday 8:00 AM to 5:00 PM (Eastern Time) If unable to reach the contact by telephone, please send an email. You should get a response within 24 hours. 20210917 ArcGIS Metadata 1.0 Raster Dataset City of Salinas, CA 2018 Orthoimagery; Orthophoto MrSID (20:1 compression) 2018-08-30 Quantum Spatial, Inc. remote-sensing image <DIV STYLE="text-align:Left;"><DIV>Product: This orthoimagery data set includes 3-inch 8-bit 4-band (RGBN) digital orthoimage mosaics in MrSID format (20:1 compression). Geographic Extent: The AOI covers approximately 28 total square miles of the City of Salinas in the State of California. Dataset Description: City of Salinas, CA 2018 Orthoimagery project called for the planning, acquisition, processing, and derivative products of imagery data to be collected at a ground sample distance (GSD) of 0.25 foot. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Ortho Specification, Version 1.0. The data were developed based on a horizontal projection/datum of NAD83 (2011) California State Plane Coordinate System, Zone 4, US Survey Feet. Orthoimagery data were delivered as stereo imagery pairs in GeoTIFF format, 131 individual 0.25-foot 2,640 feet x 2,640 feet 8-bit, 4-band (RGBN) GeoTIFF tiles, and a 0.25-foot 8-bit, 4-band (RGBN) 20:1 compressed MrSID mosaic. Ground Conditions: Aerial photography was captured during the summer of 2018, while no snow was on the ground and rivers were at or below normal levels. In order to post process the imagery data to meet task order specifications and meet horizontal accuracy guidelines, Quantum Spatial, Inc. utilized a total of 16 surveyed control points throughout the project area to assess the horizontal accuracy of the data. These checkpoints were not used to calibrate or post process the data.</DIV></DIV> This dataset depicts geographic features on the surface of the earth. It was created to current imagery data for the project area. State of California City of Salinas Monterey County 0.25-foot orthoimage MrSID rectified photograph rectified image orthophoto natural color orthophoto orthoimage image map 0.25-foot orthoimage MrSID rectified photograph rectified image orthophoto natural color orthophoto orthoimage image map State of California City of Salinas Monterey County <DIV STYLE="text-align:Left;"><DIV>Quantum Spatial, Inc. Use Limitations:None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations.City of Salinas Use Limitations:Disclaimer_Warranties/Accuracy:GIS data in this map are provided as an information resource for the public use and are provided "AS IS" without warranties of any kind, expressed or implied. To the fullest extent permissible under applicable law, THE CITY OF SALINAS DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND TITLE TO ANY OF THE MATERIALS PROVIDED. The City of Salinas does not warrant that the functions contained in the materials will be uninterrupted or error-free. The City of Salinas does not warrant or make any representations regarding the use of the results in this dataset, or through links to other data, in terms of their correctness, accuracy, reliability or otherwise. The USER assumes the entire cost of all necessary servicing, repair or corrections.THE CITY OF SALINAS SHALL NOT BE HELD LIABLE FOR ANY IMPROPER OR INCORRECT USE OF MATERIALS OR INFORMATION PROVIDED AND ASSUMES NO RESPONSIBILITY FOR ANY USERS' USE OF THEM. IN NO EVENT SHALL THE CITY OF SALINAS BE LIABLE FOR ANY DAMAGES, WHETHER DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL (INCLUDING, BUT NOT LIMITED TO, BUSINESS INTERRUPTION OR LOSS OF USE, DATA, OR PROFITS) REGARDLESS OF CAUSE, AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DATA AND INFORMATION CONTAINED WITHIN THE DATASET, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.THIS DISCLAIMER OF LIABILITY APPLIES TO ANY DAMAGES OR INJURY, INCLUDING BUT NOT LIMITED TO THOSE CAUSED BY ANY FAILURE OF PERFORMANCE, ERROR, OMISSION, INTERRUPTION, DELETION, DEFECT, DELAY, COMPUTER VIRUS, COMMUNICATION LINE FAILURE, THEFT, OR DESTRUCTION OF DATA, WHETHER FOR BREACH OF CONTRACT, TORTIOUS BEHAVIOR, NEGLIGENCE, OR UNDER ANY OTHER CAUSE OF ACTION.Users are encouraged to consult with appropriate and accredited professional advisors for advice concerning specific matters before making any decision, and the City of Salinas disclaims any responsibility for positions taken by individuals or corporations in their individual cases or for any misunderstanding and losses, directly or indirectly, on the part of the users. Changes are made periodically to many City documents, including municipal codes, charter sections, regulations, guidelines, and schedules, and these changes may or may not be reflected in the materials or information present in the City of Salinas' GIS data. The data provided herein may therefore, be inaccurate or out of date and any person or entity who relies on said information for any purpose whatsoever does so solely at his or her own risk. Additionally, because the GIS data is frequently under development, materials and information may be deleted, modified or moved without advance notice.Continued use of this website/GIS data is conditioned upon your implicit acceptance of the terms and the conditions set forth on this website. If you do not agree, please refrain from using the GIS maps and other data sets on the website.</DIV></DIV> City of Salinas Public Works Department, GIS Division shall not be held liable for improper or incorrect use of these data. These data and related graphics are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and within the limitations of geospatial data in general. City of Salinas Public Works Department, GIS Division gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data be directly acquired from City of Salinas Public Works Department, GIS Division, and not indirectly through other sources which may have changed the data in some way. This disclaimer applies both to individual use of the data and aggregate use with other data. Esri ArcGIS 10.3.1; ImageStation Orientation 2015/Version 15.00.0000 Build 395; Leica MissionPro version 11.6 ; OrthoPro v.06.02.0100.00017 true -121.6869902 -121.5739932 36.73424221 36.63902944 ground condition 2018-06-18 1 -121.690040 -121.569336 36.743165 36.631851 Quantum Spatial, Inc. None. None. None. NONE All GeoTIFF tagged data and image file sizes are validated using commercial GIS software to ensure proper loading before being archived. This validation procedure ensures correct physical format and field values for tagged elements. Seamlines and tile edges are visually inspected. Seamline mismatches are corrected unless the overall displacement is less than one pixel. Orthoimages are visually inspected for completeness to ensure that no gaps or image misplacements exist within and between adjacent images. These images are derived by mosaicing multiple images to ensure complete coverage. Source imagery is cloud free. The horizontal accuracy was tested with 16 surveyed control points. These checkpoints were not used in the calibration or post-processing of the imagery data. The checkpoints were distributed throughout the project area and were surveyed using GPS techniques. See survey report for additional survey methodologies. The x and y positions of where the checkpoints fell on the orthoimagery were collected. These values were then compared to the surveyed control point x and y values. Accuracy has been tested to meet 2 centimeters (0.065 feet) or better RMSE as designated by the NOAA Technical Memorandum NOS NGS 59. Tested 0.0094 meters (0.031 feet) RMSEx. The RMSEx of the imagery was calculated using 16 independent checkpoints. 0.0094 The horizontal accuracy was tested with 16 surveyed control points. These checkpoints were not used in the calibration or post-processing of the imagery data. The checkpoints were distributed throughout the project area and were surveyed using GPS techniques. See survey report for additional survey methodologies. The x and y positions of where the checkpoints fell on the orthoimagery were collected. These values were then compared to the surveyed control point x and y values. Accuracy has been tested to meet 2 centimeters (0.065 feet) or better RMSE as designated by the NOAA Technical Memorandum NOS NGS 59. Tested 0.0088 meters (0.029 feet) RMSEy. The RMSEy of the imagery was calculated using 16 independent checkpoints. 0.0088 The vertical accuracy was tested with 17 surveyed control points. These checkpoints were not used in the calibration or post-processing of the imagery data. The checkpoints were distributed throughout the project area and were surveyed using GPS techniques. See survey report for additional survey methodologies. The elevations of where the checkpoints fell on the orthoimagery were collected. These values were then compared to the surveyed control point elevation values. Accuracy has been tested to meet 5 centimeters (0.164 feet) or better RMSE as designated by the NOAA Technical Memorandum NOS NGS 59. Tested 0.0177 meters (0.058 feet) RMSEz. The RMSEz of the imagery was calculated using 17 independent checkpoints. 0.0177 Orthophoto Processing: Utilizing all color bands (red, green, blue, and near-infrared), digital orthorectification was performed using bilinear interpolation algorithms resulting in a spatial and radiometric transformation of the digital image from line/sample space into NAD83 (2011) California State Plane Coordinate System, Zone 4, US Survey Feet. The interior and exterior orientation parameters from the aerotriangulation process were used to project each pixel into the ground coordinate system, while the ortho grade DTM was used to correct for relief displacement. Radiometric correction software and techniques were used to create orthophoto files that minimize the appearance of image seams and without loss of feature signature. Orthophotos are checked for geometric accuracy, image quality, and are tonally balanced to produce a uniform contrast and tone across the entire project. The individual overlapping orthophoto frames were mosaiced together. 2018 Georefs AT Control DTM Orthos This data source was used (along with the airborne GPS/IMU Data) to aid in the georeferencing of the LiDAR point cloud data. Control Survey Report CONTROL 2018 Quantum Spatial, Inc. vector digital data and tabular data ground condition 2018 Aerial imagery was acquired using a Vexcel UltraCam Falcon Prime Airborne Digital Sensor with a flight design that included a total of 17 flight lines. Aerial imagery was supplemented with the simultaneous acquisition of airborne GPS/IMU data, which captured the ground coordinate for the nadir point of each photograph. Aerial imagery was collected to support a minimum 3-inch ground sample distance (GSD) and collection forward overlap was 80 percent and sidelap was 60 percent. Georeferenced Single Frames PHOTO 2018 Quantum Spatial, Inc. remote-sensing image ground condition 2018 Softcopy aerotriangulation was performed utilizing the airborne GPS/IMU data, GPS ground control, and image coordinate measurements allowing the direct computation of the exterior orientation parameters for each image of the project. Aerotriangulation AT 2018 Quantum Spatial model ground condition 2018 Digital elevation data in ESRI raster format from LiDAR and stereo compilation was provided by the City of Salinas. DEM DEM 2018 City of Salinas raster digital data ground condition 2018 four band orthoimagery is organized in four color bands or channels which represent the red, green, blue, and near-infrared portions of the spectrum. Each image pixel is assigned a quadruplet of numeric values, one for each color band. Numeric values range from 0 to 255. Void areas have a value of 0,0,0,0 (black). U.S. Department of the Interior, U.S. Geological Survey, 1996, Standards for Digital Orthophotos: Reston, VA. dataset 2 1 0 5773574.999948 2124159.000059 5773574.999948 2163759.000059 5807894.999948 2163759.000059 5807894.999948 2124159.000059 5790734.999948 2143959.000059 137280 0.250000 158400 0.250000 Band_1 255.000000 0.000000 8 Band_2 255.000000 0.000000 8 Band_3 255.000000 0.000000 8 Band_4 255.000000 0.000000 8 Band_5 255.000000 0.000000 8