<commit_before>---
status: publish
layout: page
author:
  display_name: <NAME>
  email: <EMAIL>
tags:
  - 1 foot
  - aerial photography
  - data
  - hro
  - imagery
published: true
date: 2011-08-15 17:04:48 -0600
title: High Resolution Orthophotography
categories: []
---
<div class="caption">
    <a href="{{ "/downloads/HRO2012_sample.png" | prepend: site.baseurl }}">
      <img src="{{ "/images/HRO2012_sample.png" | prepend: site.baseurl }}" alt="hro image of utah" /></a>
    <p class="caption-text">HRO 2012 Sample</p>
</div>
{% include abstract.html
name="HRO"
stewards="AGRC"
type="GeoTIFF"
webapp="http://raster.utah.gov"
abstract="High resolution orthorectified images combine the image characteristics of an aerial photograph with the geometric qualities of a map. An orthoimage is a uniform-scale image where corrections have been made for feature displacement such as building tilt and for scale variations caused by terrain relief, sensor geometry, and camera tilt. A mathematical equation based on ground control points, sensor calibration information, and a digital elevation model is applied to each pixel to rectify the image to obtain the geometric qualities of a map." %}
<div class="grid package">
  <div class="grid__col grid__col--12-of-12">
    <h3 id="HRO2012">
      <a href="#HRO2012" class="anchor--link">2012</a>
    </h3>
  </div>
  <div class="grid__col grid__col--12-of-12 package-content">
    <p>AGRC has High Resolution Orthophotography (HRO) 6-inch (12.5 cm) resolution 4-band aerial photography from 2012 for the Wasatch Front. Although the imagery is generically referred to as 6-inch imagery it is actually 12.5 centimeter or 4.92 inch resolution. The imagery in the Uintah Basin is 1-foot resolution. The GeoTIFF images are approximately 175 mb per 2000x2000 meter block. The images have a UTM NAD83 meters projection and are from the spring of 2012. The <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/"><code>.XML</code> files</a> contain the metadata for the imagery and <code>CALDATE</code> contains the date the imagery was flown and collected.</p>
    <p>The image tile boundaries can be viewed in this <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/HRO2012_4-Band_Index.zip">HRO2012 Index shapefile</a>. The index also contains the field <code>USNG</code> that corresponds to the image tile names. The <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/HRO2012_4-Band_IndexMap.pdf">HRO2012 Index Map</a> is a map with the image tile boundaries and labels for the image tile names.</p><commit_msg>more specific web app link<commit_after>---
status: publish
layout: page
author:
  display_name: <NAME>
  email: <EMAIL>
tags:
  - 1 foot
  - aerial photography
  - data
  - hro
  - imagery
published: true
date: 2011-08-15 17:04:48 -0600
title: High Resolution Orthophotography
categories: []
---
<div class="caption">
    <a href="{{ "/downloads/HRO2012_sample.png" | prepend: site.baseurl }}">
      <img src="{{ "/images/HRO2012_sample.png" | prepend: site.baseurl }}" alt="hro image of utah" /></a>
    <p class="caption-text">HRO 2012 Sample</p>
</div>
{% include abstract.html
name="HRO"
stewards="AGRC"
type="GeoTIFF"
webapp="http://raster.utah.gov/?catGroup=HRO%202012%20(12.5cm),HRO%202012%20(1ft),HRO%202009%20(25cm),HRO%202006%20(25cm),HRO%202003%20(30cm)&title=Utah%20HRO%20Imagery"
abstract="High resolution orthorectified images combine the image characteristics of an aerial photograph with the geometric qualities of a map. An orthoimage is a uniform-scale image where corrections have been made for feature displacement such as building tilt and for scale variations caused by terrain relief, sensor geometry, and camera tilt. A mathematical equation based on ground control points, sensor calibration information, and a digital elevation model is applied to each pixel to rectify the image to obtain the geometric qualities of a map." %}
<div class="grid package">
  <div class="grid__col grid__col--12-of-12">
    <h3 id="HRO2012">
      <a href="#HRO2012" class="anchor--link">2012</a>
    </h3>
  </div>
  <div class="grid__col grid__col--12-of-12 package-content">
    <p>AGRC has High Resolution Orthophotography (HRO) 6-inch (12.5 cm) resolution 4-band aerial photography from 2012 for the Wasatch Front. Although the imagery is generically referred to as 6-inch imagery it is actually 12.5 centimeter or 4.92 inch resolution. The imagery in the Uintah Basin is 1-foot resolution. The GeoTIFF images are approximately 175 mb per 2000x2000 meter block. The images have a UTM NAD83 meters projection and are from the spring of 2012. The <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/"><code>.XML</code> files</a> contain the metadata for the imagery and <code>CALDATE</code> contains the date the imagery was flown and collected.</p>
    <p>The image tile boundaries can be viewed in this <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/HRO2012_4-Band_Index.zip">HRO2012 Index shapefile</a>. The index also contains the field <code>USNG</code> that corresponds to the image tile names. The <a href="ftp://ftp.agrc.utah.gov/Imagery/HRO2012_4-band/HRO2012_4-Band_IndexMap.pdf">HRO2012 Index Map</a> is a map with the image tile boundaries and labels for the image tile names.</p>
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