The 2008 NAIP orthophotography county mosaics are currently available for all 92 Indiana Counties in four-band JPEG2000 format. With this imagery, you can display orthoimagery as either natural color (red, green, and blue bands) or color infrared (infrared, red, and green bands).

The major differences between the 2008 NAIP and the 2005 Statewide orthophotography data sets (besides a 3 year difference) are:
1. The 2005 imagery are 3-band RGB & CIR data sets, while the 2008 NAIP imagery
is a single 4-band multispectral data set.
2. The 2005 imagery is one-foot/half-foot pixel product, while the 2008 NAIP imagery
is one-meter pixel product.
3. The 2005 imagery was flown leaf-off (spring time), while the 2008 NAIP imagery
was flown leaf-on (summer time).

If you are using ArcGIS here is what you need to do:
To display the imagery in RGB (Natural Color) use the default settings to set up the red channel as band 1 (red), green channel as band 2 (green), blue channel as band 3 (blue), and the alpha channel as band 4 omitted (not checked).

To display the imagery in CIR (Color Infrared) set up the red channel as band 4 (alpha), the green channel as band 1 (red), and the blue channel as band 2 (green), and the alpha channel as band 3 (blue) is omitted (not checked).

ArcGIS CIR Dialog


Below are examples of the 2008 NAIP RGB and CIR imagery compared to the 2005


2005 RGB
2005 Leaf-off RGB

NAIP RGB
2008 Leaf-on NAIP RGB

NAIP CIR
2008 Leaf-on NAIP CIR

1-foot RGB
2005 Leaf-off RGB (one-foot pixel closeup)

1-meter RGB
2008 Leaf-on RGB NAIP (one-meter pixel closeup)


To download data visit the University Information Technology Services at Indiana University http://www.indiana.edu/~gisdata/statewide/08naip.html for more information.