Archived Aerial Photography

 

 

 

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Aerial Photography

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NEWSFLASH------->   Aerial Photography for all of Clinton County was Flown on April 7th, has been reviewed, and looks good for a Fall Delivery!   <-------

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MUST READ to View Downloadable Photography!

Note:

To view photography from the years 2000, 2005, and 2008 online you can go to the Auditors web page.

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Click on a year to Explore that years' data:

1950 1971 1994 2003 2006 2009
1962 1980 1998 2004 2007 2011
1968 1988 2000 2005 2008  

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Click the image above for a PDF file showing the differences between 2007 and the 2009 NAIP Photography datasets

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Oblique Imagery Example Multi Year Index Book USDA Geospatial Data Gateway
Processing the Imagery Download Grid Indexes National Agriculture Imagery Program
Color InfraRed Photography   Ohio State Imagery Program

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Oblique Imagery Sample

Below are some sample images courtesy of Woolpert Inc. that illustrate "oblique" photography.

These images are centered on the Clinton County Courthouse located at 46 S South Street Wilmington, Ohio.

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How do we Do It?

Processing the Imagery...

We are on occasion asked about the process used to create the older imagery you can find on this web page.

First, we start with scanning. Each of the 136 images (as in the 1968 Imagery Collection) were scanned into a colored tiff image, at 300 DPI (dots per inch).

Each image ends up between 135 and 145 MB in size, which is simply to large to work with on most computer systems and software. The final image that is distributed by the GIS Department is in MrSID file format, which is a compressed version  of the original rectified tiff image. Usually the tiff images go from 145 MB to about 5 MB as a MrSID image.

The individual images are converted to a MrSID file format and made available on the web pages for each year.

You can click on file name on the index map and see the MrSID image for that particular area. One of the neatest things that you can do is look at the index in Google Earth (where available) and see the MrSID image and the Google Earth image at the same time, in different windows.

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Raw Scanned Image

This is scanned image, exactly as the original appeared. You can see the date the image was taken in the upper left, and index numbers in the upper middle and upper right corner.

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USDA Geospatial Data Gateway

NAIP - National Agriculture Imagery Program

-    Fact Sheet

Summary
The Geospatial Data Gateway or Geo-Data Gateway provides easy and consistent
access to natural resource data. You can search for available data by
geographic area such as county or state, use our point and click map tool to
find your area of interest; using a gazetteer, or by entering latitude and
longitude coordinates. You can also search for data by theme, such as digital
ortho imagery, digital elevation models (DEMs), or soils. You can then view a
thumbnail, or sample of the data you've chosen to know if you want a copy of
the data. If you do, you can either download the data directly onto your
machine, pick it up via our FTP site, or order it on media such as CD.

Click on the screenshot below to go to the web page:

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