Imagery from the summer 2013 National Agriculture Imagery Program flights over Wisconsin are now available as a free download from the USDA-NRCS Geospatial Data Gateway.
The specifications for the imagery are the same as in the past: 4-band digital color (red, green, blue, near-infrared), 1-meter spatial resolution, leaf-on, MrSID or Geotiff formats, projected to UTM zone 15 or 16. (Note: the MrSID county mosaics available via the Geospatial Data Gateway are three-band natural color only. GeoTIFFs are not available from the site.)
Data can be downloaded from the Geospatial Data Gateway by selecting a county, defining an area of interest on a map, or specifying a place. Personally, I’ve found the default “Order by County/Counties” option to be the most reliable.
I spoke to Sam Batzli from WisconsinView earlier this week. He recently obtained a hard drive containing the original GeoTIF-format tiles, and MrSID compressed county mosaics. If all goes well, he hopes to have those available for download from the WisconsinView.org Web site by the middle of February.