Aerial imagery of the Purdue Agronomy Center for Research and Education (ACRE) – 1963

<p>Aerial imagery from 1963 covering the Purdue Agronomy Center for Research and Education (ACRE) (4530 US-52, West Lafayette, IN 47906; latitude / longitude in decimal degrees: 40.4698, -86.9927) and surrounding areas. The data were downloaded from the Indiana Geological and Water Survey website (https://igws.indiana.edu/) on January 9, 2017 and consisted of two individual images available in JPG format that had not been georeferenced. These original images are provided in the folder labeled “Original_Scans.” The images were georeferenced and projected using the Georeferencing tool in ArcGIS 10.6 and using as the standard base map the 2013 IndianaMap Data imagery from the same area that had previously been reprojected into the Indiana Geospatial Coordinate System NAD_1983_2011_InGCS_Tippecanoe-White_(m). For accurate georeferencing, stable and visible benchmarks such as roads, intersections, driveways, railroad tracks, culverts, etc. were used as control points. Sufficient control points (usually about 15) were added so that the spline transformation could be used for each image. The two individual images were then mosaicked into one georeferenced image using the Mosaic tool in ArcGIS 10.6. This mosaicked image, in the Indiana Geospatial Coordinate System NAD_1983_2011_InGCS_Tippecanoe-White_(m), is in the folder named “Georeferenced.”</p>

<p>This data set was produced as part of a project funded by the Office of Agricultural Research and Graduate Education at Purdue University.</p>

1963年拍摄的美国印第安纳州西拉法叶市普渡大学农学研究与教育中心（Agronomy Center for Research and Education，缩写ACRE）航空影像