Location: Water Management and Systems ResearchTitle: Evaluation of multispectral unmanned aerial systems for irrigation management Author
|Chavez, Jose - Colorad0 State University|
|Capurra, Maria Cristina - Colorad0 State University|
|Masih, Ashish - Colorad0 State University|
|Altenhofen, Jon - Northern Colorado Water Conservancy District|
Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 6/21/2018
Publication Date: 7/16/2018
Citation: Chavez, J.L., Zhang, H., Capurra, M., Masih, A., Altenhofen, J. 2018. Evaluation of multispectral unmanned aerial systems for irrigation management. Meeting Proceedings. https://doi.org/10.1117/12.2305076.
DOI: https://doi.org/10.1117/12.2305076 Interpretive Summary: N/A
Technical Abstract: Growing competition for water is incentivizing the implementation of deficit irrigation. Thus, there is a need to accurately map actual crop evapotranspiration (ETa) to more efficiently manage and document irrigation. An alternative is the use of remote sensing (RS) platforms. Unmanned Aerial Systems (UAS) can fly frequently and acquire very high spatial resolution images. Multispectral UASs (fixed-wing and multi-rotor) flew over irrigated corn fields, in northern Colorado, to evaluate the capabilities of the RS systems on irrigation management. Soil water content sensors were used in the evaluation. Using multispectral UAS platforms in irrigation management is advantageous in regards to having the capability to assess crop water use and stress frequently and at very high spatial resolutions. This study shows that inferring crop water use and soil water status with acceptable errors is possible with visible-near-infrared and thermal cameras. Furthermore, the required imagery processing and calibration is detailed.