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 "serviceDescription": "<DIV STYLE=\"text-align:Left;\"><DIV><DIV><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Resolution: 2.0 meter<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Bands: 1-band: Panchromatic<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>USDA Agricultural Stabilization and Conservation Service (FSA)<\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Black and White<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Scanned and georectified using ERDAS Imagine<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Flying height 40,000 feet, 6-inch focal length camera <\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>SRS: NAD83 HARN Delaware State Plane meters<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Scale: 1:20,000<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>These are scanned images from aerial photography flown in 1960 and 1961 by the Agricultural Stabilization and Conservation Service. The images are presented as a statewide mosaic.<\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>Scanning the original, paper format, 9x9\" aerial photographs were taken in 1961 as part of an aerial survey program. The photographs were scanned at 300 dpi on an 11x17\" EPSON GT-15000 scanner, as single band gray scale images. The output was written to *.JPG files. All georectifying was completed in ERDAS Imagine 8.7. Please see the included tutorial for a more detailed explanation. This document was used for training and reference by staff members completing the processing. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>1. Ground control points (GCPs) were created on the 1960/61 images using the 2002 digital orthophotography of Delaware as a reference, using the Image Geometric Correction Tool. The 2002 data was produced in False Color Infrared at a scale of 1:2,400 with a 1 foot pixel resolution. This data is also available in a single, mosaicked MrSID file and is assigned a State Plane Coordinate System and a North American Datum of 1983. In eastern Sussex County, every attempt was made to create GCPs at a standard scale of 1:3,000, however, due to photo quality this scale was not always possible. For the remainder of the state, the largest scale possible was used while still maintaining a clear, unpixelated image on the screen. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>2. The scanned images were then resampled to those points using the Display Resample Image Dialog. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>3. The GCPs were stored for each image tile along with the Control Point Error from the registration process. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>4. Resampled images (1960/61 corrected) were subsetted (i.e. cropped) to remove photograph borders, fiducial marks, and distorted edges. Mosaicking The 1961 aerial mosaic was created using ERDAS Imagine 8.7. To complete this task, the mosaic tool from ERDAS Imagine was used and contained a feather technique for blending overlapping images. Holes in the final image of Delaware are due to misplacement of aerial photographs.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>",
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 "description": "<DIV STYLE=\"text-align:Left;\"><DIV><DIV><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Resolution: 2.0 meter<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Bands: 1-band: Panchromatic<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>USDA Agricultural Stabilization and Conservation Service (FSA)<\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Black and White<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Scanned and georectified using ERDAS Imagine<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Flying height 40,000 feet, 6-inch focal length camera <\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>SRS: NAD83 HARN Delaware State Plane meters<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN><SPAN>Scale: 1:20,000<\/SPAN><\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>These are scanned images from aerial photography flown in 1960 and 1961 by the Agricultural Stabilization and Conservation Service. The images are presented as a statewide mosaic.<\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>Scanning the original, paper format, 9x9\" aerial photographs were taken in 1961 as part of an aerial survey program. The photographs were scanned at 300 dpi on an 11x17\" EPSON GT-15000 scanner, as single band gray scale images. The output was written to *.JPG files. All georectifying was completed in ERDAS Imagine 8.7. Please see the included tutorial for a more detailed explanation. This document was used for training and reference by staff members completing the processing. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>1. Ground control points (GCPs) were created on the 1960/61 images using the 2002 digital orthophotography of Delaware as a reference, using the Image Geometric Correction Tool. The 2002 data was produced in False Color Infrared at a scale of 1:2,400 with a 1 foot pixel resolution. This data is also available in a single, mosaicked MrSID file and is assigned a State Plane Coordinate System and a North American Datum of 1983. In eastern Sussex County, every attempt was made to create GCPs at a standard scale of 1:3,000, however, due to photo quality this scale was not always possible. For the remainder of the state, the largest scale possible was used while still maintaining a clear, unpixelated image on the screen. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>2. The scanned images were then resampled to those points using the Display Resample Image Dialog. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>3. The GCPs were stored for each image tile along with the Control Point Error from the registration process. <\/SPAN><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN /><\/P><P STYLE=\"margin:0 0 0 0;\"><SPAN>4. Resampled images (1960/61 corrected) were subsetted (i.e. cropped) to remove photograph borders, fiducial marks, and distorted edges. Mosaicking The 1961 aerial mosaic was created using ERDAS Imagine 8.7. To complete this task, the mosaic tool from ERDAS Imagine was used and contained a feather technique for blending overlapping images. Holes in the final image of Delaware are due to misplacement of aerial photographs.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>",
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