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09122400
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CreateMosaicDataset E:\staging\Imagery_Mosaics.gdb DE_Imagery_2017_Parks_HR "PROJCS['NAD_1983_StatePlane_Delaware_FIPS_0700',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['Transverse_Mercator'],PARAMETER['False_Easting',200000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-75.41666666666667],PARAMETER['Scale_Factor',0.999995],PARAMETER['Latitude_Of_Origin',38.0],UNIT['Meter',1.0]];-5423100 -14209500 10000;-100000 10000;-100000 10000;0.001;0.001;0.001;IsHighPrecision" 4 8_BIT_UNSIGNED NONE #
DefineOverviews E:\staging\Imagery_Mosaics.gdb\DE_Imagery_2017_Parks_HR E:\staging\Imagery_Mosaics.Overviews\DE_Imagery_2017_Parks_HR.Overviews # "165609.472 49184.7679999992 232849.408 203587.583999999" # # 5120 5120 2 NO_FORCE_OVERVIEW_TILES BILINEAR JPEG 80
BuildOverviews E:\staging\Imagery_Mosaics.gdb\DE_Imagery_2017_Parks_HR # NO_DEFINE_MISSING_TILES GENERATE_OVERVIEWS GENERATE_MISSING_IMAGES REGENERATE_STALE_IMAGES
DE_Imagery_2017_Parks_HR
file://\\DVT2CFIRSTMAP\F$\historic\Imagery_Mosaics.gdb
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ItemDescription
Surdex Corp
636-368-4400
636-368-4400
636-368-4401
Customer Service
520 Spirit of St Louis Blvd
Surdex Corp
Ortho Processing
Chesterfield
Missouri
63005
US
cornellr@surdex.com
Monday through Friday 8:00 AM to 4:00 PM (Central Time)
The above is the contact information for National Geospatial Technical Operations Center in Sioux Falls, SD.
20171031
ArcGIS Metadata
1.0
Surdex Corp
636-368-4400
636-368-4400
636-638-4401
Surdex Corp
Ortho Processing
520 Spirit of St Louis Blvd
Customer Service
Chesterfield
Missouri
63005
US
cornellr@surdex.com
Monday through Friday 8:00 AM to 4:00 PM (Central Time)
The above is the contact information for Surdex Corp in Chesterfield, MO.
DE 2017 Imagery Parks High Resolution (State Plane)
2017-10-31
v.01
Surdex Corp
Chesterfield, MO
Surdex Corp
vector project tile layout
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data set consists of 0.25-meter pixel resolution (approximately 0.82-foot), 4-band orthoimages covering the entire State of Delaware. With a total of 2,010 X 1700-meters by 1700-meters (2.89 square kilometers) full orthoimage tiles providing imagery in blocks on the ground with no "no data" space, the total area of the project is 5,808.9 square kilometers (2,242.83 square miles). This project also includes 0.076-meter pixel resolution (approximately 0.25-foot), 4-band orthoimages that covers select areas within the State of Delaware park system for the Department of Natural Resources and Environmental Control (DNREC), Division of Parks and Recreation. With each of the 1,268 X 622.6-meters by 622.6-meters (0.388 square kilometers) orthoimage tiles providing imagery in blocks on the ground, the total of the collective area is approximately 492.0 square kilometers (189.96 square miles). The 0.076 meter product is approximate in area because "black data" space is present in areas outside the official boundaries of the delivery tiles. There is no image overlap between adjacent tiles. An orthoimage is remotely sensed image data in which displacement of features in the image caused by terrain relief and sensor orientation have been mathematically removed. Orthoimagery combines the image characteristics of a photograph with the geometric qualities of a map. The design accuracy is estimated not to exceed 1.52-meters NSSDA 95% confidence (0.88-meters Root Mean Squared (RMSE) Error XY (0.62 meter RMSE X or Y). The projected coordinate system is Delaware State Plane. The horizontal datum is NAD83. The vertical datum is NAVD88. The units are in meters.</SPAN></P></DIV></DIV></DIV>
Delaware 2017 Orthophotography of selected State Park areas in high resolution using State Plane projection.
Surdex Corp
Surdex Corp
636-368-4400
520 Spirit of St Louis Blvd
Chesterfield
Missouri
63005
US
The State of Delaware, USA.
USA
Delaware
Northeast USA
Keywords
orthophoto
0.25 meter orthoimage
4-band orthophoto
orthoimagery
0.076 meter orthoimage
rectified image
USA
Delaware
orthophoto
0.25 meter orthoimage
4-band orthophoto
orthoimagery
0.076 meter orthoimage
Northeast USA
rectified image
FirstMap
Any conclusions drawn from the analysis of Surdex Corp or its partners.
None
N/A
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None. However, users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.</SPAN></P></DIV></DIV></DIV>
Surdex's proprietary "Grouping Tool" is used for validation of the imagery and surface modeling
-75.4829075
-75.020039
38.265934
39.503811
ground condition
2017-03-29
The information in the report is the result of ground control surveys performed between the dates indicated and the general conditions at the time of flight. The bounding coordinates provided within the Spatial Domain Section represents a rectangle covering the total area in which the prroject is located.
1
-75.818421
-75.032916
39.833902
38.442443
Last metadata review date: 20171031
All GeoTIFF tagged data and image file sizes are validated using Surdex Proprietary software to ensure proper loading before being finalized. This validation procedure ensures correct physical format and field values for tagged elements. Seamlines and tile edges are visually inspected. Seamline mismatches are not corrected unless the overall displacement exceeds 0.75 meters.
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 mosaicking multiple images to ensure complete coverage. Source imagery is cloud free. Photography was flown during leaf-off in deciduous vegetation regions.
Radiometry is verified by visual inspection of the digital orthophoto. Slight systematic radiometric differences may exist between adjacent orthoimage files; these are due primarily to differences in source image capture dates and sun angles along flight lines. These differences can be observed in an image's general lightness or darkness when it is compared to adjacent orthoimage file coverages. Tonal balancing may be performed over a group of images during the mosaicking process which may serve to lighten or darken adjacent images for better color tone matching.
None
Project area was fully covered with processed LIDAR data for orthorectification.
NED
ground control
2017-10-31
Surdex Corp
ground condition
2017-04-21
Horizontal and vertical ground control was used to establish positions and elevations for reference, correlation purposes and input to the aerotriangulation process. Control consists of photo identifiable groundd surveyed control for ground reference. A total of 78 points were surveyed. 54 were used for ground control and 24 were used for quality control.
Ground Survey
Ground Control
2017-10-31
Topcon
Ground Condition
2017-03-05
2017-03-29
Client provided LiDAR data was checked and a bare earth DEM was created and utilized to orthorectify the project area.
LiDAR
ground control
2017-10-31
Surdex Corp
ground condition
2017-03-05
The ADS100 has nadir, forward-looking, and aft-looking sets of arrays – each containing red, green, blue, and near-infrared (R,G,B,N) bands, with the nadir array having two (2) “staggered” green arrays. The Time-Delayed Integration (TDI) has been implemented for the first time in a pushbroom camera system. TDI, coupled with a high integration time, results in superior sensitivity and the ability to operate at high airspeeds. This is the input data for the digital orthophotos. The aerial imagery for the entire 0.25 meter project was acquired at approximately 2,774 meters (9,100 feet) above mean sea level. The aerial imagery for the entire 0.076 meter areas were acquired at approximately 1,006 meters (3,300 feet) above mean sea level
Colville, WA Raw ADS100 imagery
Aerial Imagery Acquisition
2017-10-31
Surdex Corp
ground condition
2017-03-29
The digital orthoimagery is comprised of a 4-band true color and near infrared image that is organized in four bands or channels which represents the red, green, blue and near infrared (R,G,B,IR) portions of the spectrum. The 0.25 meter pixel resolution ground sample distance (gsd) orthoimagery covers the entire State of Delaware. The 0.076-meter pixel resolution (gsd) orthoimagery covers select areas within the State of Delaware park system for the Department of Natural Resources and Environmental Control (DNREC), Division of Parks and Recreation. The imagery was acquired on March 05, 09, 20 and 29, 2017. Surdex's proprietary "Grouping Tool" is a highly specialized tool that plays a key role in image processing and all phases of generating the orthoimagery that covers all project tiles. The initial radiometric adjustments were performed on the imagery for each flight line attempting to reach the best possible histogram. The rectification process and the radiometrically balanced imagery on each flight line was accomplished by utilizing the Grouping Tool. Once grouping is complete, the operator selected a representative image within each group to prototype the image enhancement settings. This image will have the greatest dynamic range and number of near neutral areas among group images. Gamma (brightness), color adjustments, and adjustment to neutral metrics are first performed. This is done by applying corrections to each image group, driving the complete mosaic to agree with the metrics. Most metrics are easily computed from histogram information, the exception being the measurement of neutral objects that require technician inspection. Mosaic seamlines are autogenerated joining the ADS100 imagery strips. An initial QA/QC was performed by the technician to ensure that the mosaic seamlines were appropriately placed and that there was appropriate imagery coverage. After the seamlines are manually reviewed and corrected, the final image mosaic is cut into client specific tiles. All imagery was Aero Triangulated and processed in required projection: Delaware State Plane - horizontal datum is NAD83 - vertical datum is NAVD88 - units are in meters. The created tiles are reviewed again for anomalies and interactive radiometric adjustment applied where needed. QA/QC was performed looking for anomalies, smears and other indications of problems within the digital orthophoto creation process, interactive radiometric adjustment applied where needed. The final primary digital ortho product was delivered in 1700 meters x 1700 meters (2.89 square kilometers) GeoTIFF tiles.
2017-04-21
Cornell Rowan
Surdex Corp
Project Manager
636.368.4400
636.368.4461
520 Spirit of St Louis Blvd
Chesterfield
Missouri
63005
US
cornellr@surdex.com
Mon-Fri 8:30am to 5:00pm
LiDAR
ortho
78
884736
0.076000
2031616
0.076000
2
1
0
165609.472000 49184.768000
165609.472000 203587.584000
232849.408000 203587.584000
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