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Shawn Benham
Sanborn Map Co., Inc.
Project Manager
719-502-1296
1935 Jamboree Drive, Suite 100
Colorado Springs
Colorado
80920-5358
sbenham@sanborn.com
FirstMap
State of Delaware
801 Silver Lake Blvd
Dover
DE
19904
US
302-739-9500
FirstMap
20230406
ArcGIS Metadata
1.0
DE_Imagery_2022_Parks_HR
2022-11-19T00:00:00
Delaware Parks
remote-sensing image
FirstMap
State of Delaware
801 Silver Lake Blvd
Dover
DE
19904
US
302-739-9500
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This metadata record describes the 0.25-foot pixel resolution digital orthoimagery produced for Delaware Parks by the Sanborn Map Company. The orthoimagery provided is 4-band (R, G, B, NIR), 8-bit per pixel and delivered as uncompressed TIFF/TFW tiles and compressed SID/SDW (20:1) tiles. The data was collected on March 18 and March 21, 2022 at an altitude of 1250 meters (AGL) using an UltraCam Eagle M3 camera and complies with the ASPRS Class 1 accuracy standards, at 1" = 50'. This orthoimagery is published in Delaware State Plane, NAD 83 (2011), U.S. Survey Feet.</SPAN></P></DIV></DIV></DIV>
Orthoimagery for Delaware Parks may serve as a basemap for GIS applications.
Delaware
Delaware Parks
Imagery
Orthophotography
Photography
Ortho
Imagery
Orthophotography
Photography
Ortho
Delaware
Delaware Parks
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.</SPAN></P></DIV></DIV></DIV>
None
This data may be used by the requested party for stated purposes and should not be re-distributed. The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.
Microsoft Windows 10 Service Pack 1; ESRI ArcCatalog 10.8.1
true
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-75.0412
39.8198
38.4667
ground condition
2022-03-18T00:00:00
2022-03-21T00:00:00
1
-75.787719
-75.039642
39.828533
38.465161
Sanborn Map Co., Inc.
FirstMap
State of Delaware
801 Silver Lake Blvd
Dover
DE
19904
US
302-739-9500
FirstMap
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>The State of Delaware makes no warranty or representation, expressed or implied, with respect to the quality, content, accuracy, completeness, currency, or non-infringement of proprietary rights, of any of the GIS or other data or information, or any other materials and items, that are displayed or made available for download from this site. All such data, information, items and materials (collectively, the “FirstMap Data”) are provided "as is" and users are fully and solely responsible for any consequences of use. FirstMap Data may have been created from a variety of sources, including sources beyond the control of the State of Delaware, and are subject to change without notice. To the extent you use, apply, add to, modify or implement this information in your own information system or other setting, or otherwise for your own purposes, you do so at your own risk. In no event shall the State of Delaware or its agencies, officers, employees, agents, or representatives be liable for any damages of any kind or nature whatsoever including, but not limited to, direct, indirect, special, punitive, incidental, exemplary or consequential damages arising from your downloading, modifying, sharing, distributing, or using of FirstMap Data even if notified of the possibility of such damages. Further, the State of Delaware does not accept liability for any damages or misrepresentation caused by inaccuracies in the FirstMap Data or as a result of changes to the FirstMap Data, nor is there responsibility assumed to maintain the FirstMap Data in any manner or form.</SPAN></P></DIV></DIV>
N/A
Attribute accuracy does not apply to orthoimagery.
N/A
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 use to produce the ortho mosaics.
The 117 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.
Raw Aerial Imagery - UltraCam Eagle M3 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.
Aerial Imagery
IMG
2022-11-19
Sanborn Map Co., Inc.
Raster data
ground condition
2022-03-18
2022-03-21
Image acquisition by Sanborn Map Company, was collected on March 18 and March 22, 2022 using an UltraCam Eagle M3 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.
2022-10-26T00:00:00
Bridget Marcotte
Sanborn Map Co., Inc.
Project Manager
719-244-2311
1935 Jamboree Drive, Suite 100
Colorado Springs
CO
80920
US
bmarcotte@sanborn.com
The LiDAR DTM is reviewed and updated as needed to meet the final orthorectification standards set in this project.
2022-10-26
Using the processed GPS/IMU data and correctly oriented imagery, a bundle adjustment is computed (AT).
2022-10-26
The imagery is orthorectified using the AT solution and LiDAR. The orthoimagery is then color balanced 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 orthoimagery is provided to the client for review in uncompressed TIFF/TFW format.
2022-11-19
19
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