Sensors that can quantify factors related to crop, animal, and woodland production and environmental management are the foundations of digital management.  When those sensors are interconnected and communicate in real time, that concept is Internet of Things, or IoT.  Sensors can be mounted on satellites, airplanes, unmanned aerial vehicles or drones, ground-driven implements, or in fixed or semi-fixed locations on plants or animals or in the soil.  Common measurements include geographic coordinates, electromagnetic reflectance within the visible, near infrared, thermal, and other spectrums, temperature, pressure, speed, resistance, vibration, and humidity.

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Digital Forestry: Key Developments in Aerial Remote Sensing

Songlin Fei, professor of forestry and natural resources; Joe Hupy, associate professor of aviation technology; and Jinha Jung, assistant professor of civil engineering, all of Purdue University, present a webinar titled Digital Forestry: Key Developments in Aerial Remote Sensing. In this webinar, Fei, Hupy and…


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IoT Networks: Sensors and Data Visualization

Nithin Raghunathan, research scientist, and Chariloas Mousoulis, senior research scientist, from Purdue University recently presented as part of the Data Driven Agriculture webinar series. Their presentation featured an overview of the sensors and the IoT networks being used in ag and manufacturing deployments in the 10 counties around Purdue that make up the Wabash Heartland…


Data Driven Agriculture Webinar Series

During the Spring 2021 semester, Purdue Agriculture hosted a weekly webinar series featuring experts in data science and digital agriculture at Purdue University. Each Thursday from February through May, the Data Driven Agriculture webinars explored ways digital agriculture and data science can impact agriculture today and into the future. “Building on the momentum of last…


Key Terms

Base station

Also called a reference station, is a receiver located at a surveyed benchmark. The base station calculates the error for each satellite and through differential correction, improves the accuracy of GPS positions collected at unknown locations by a roving GPS receiver.

JPEG (Joint Photographic Experts Group)

A standardized image compression mechanism used to reduce file size. Often used for internet delivery of aerial photography.

Differential correction

Modification of GPS signal information to increase accuracy. Correction of a signal is done from a second GPS receiver/transmitter at a known fixed location. The signal is then transmitted to the tractor, combine or other equipment that corrects the proper location through differential processing. Differential correction signals can be transmitted from satellites, on AM or FM radio, or through other means.


A method or technique to extend data or inferences from a known location to another location for which the values are not known.