LARS Tech Report Number



Development of a crops and soils field research data base was initiated in 1972 at Purdue University's Laboratory for Applications of Remote Sensing and expanded in the fall of 1974 by the NASA Johnson Space Center as part of the Large Area Crop Inventory Experiment. The primary purpose for the data base is to provide fully annotated and calibrated multispectral sets of spectral, agronomic, and meteorological data for agricultural remote sensing research.

The data base presently includes over 200,000 truck-mounted and helicopter-borne spectroradiometer and multiband radiometer observations and 400 flight lines of aircraft scanner data. These data are supplemented by an extensive set of agronomic and meteorological data acquired during each mission.

The data form one of the most complete and best documented data sets acquired for remote sensing research. Thus, they are well-suited to serve as a data base for research to: (1) quantitatively determine the relationships of spectral and agronomic characteristics of crops and soils, (2) define future sensor systems, and, (3) develop advanced data analysis techniques. The data base which has become an integral part of the AgRISTARS Supporting Research Project data base, is unique in the comprehensiveness of sensors and mission over the same sites throughout several growing seasons and in the calibration of all multispectral data to a common standard.

Date of this Version

January 1982