| |
Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou31.pdf Last checked: 10/18/2011 Requires: PDF Reader |
Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
Publication Type:
| Refereed |
Author(s): | Johnsen, Aaron R.;
Horgan, Brian P.;
Cline, Van |
Author Affiliation: | Johnsen and Horgan: Department of Horticulture Science, University of Minnesota, Saint Paul, Minnesota; Cline: The Toro Company, Bloomington, Minnesota |
Title: | Effect of turf species and sensor orientation to the sun on reflectance measurement |
Section: | Conservation/envrionmental quality Other records with the "Conservation/envrionmental quality" Section
|
Meeting Info.: | Santiago, Chile: July 26-30 2009 |
Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 31-39. |
Publishing Information: | Madison, WI: International Turfgrass Society |
# of Pages: | 9 |
Keywords: | TIC Keywords: Environmental factors; Normalized difference vegetation index; Reflectance; Remote sensing; Sun exposure; Turf management
|
Abstract/Contents: | "Reflectance measurements of stressed turfgrass have shown potential to improve turfgrass management practices. Research on management and environmental conditions that influence reflectance measurements is limited. Use of reflectance measurements in turfgrass management must carefully consider outside factors and practices that may influence the data. Therefore, the overall objective of this research was to evaluate the effect of management practices and the environment on turfgrass reflectance measurements. This was accomplished by conducting two field experiments during the 2006 and 2007 growing seasons. The objective of the first experiment was to assess the reflectance of turfgrass species maintained under low input fairway conditions. Results indicate that turfgrass species had significantly different (p<0.05) reflectance measurements at each rating time and the index or wavelength analyzed will influence these significant differences (p<0.05) between species. The objective of the second experiment was to evaluate the influence of sensor orientation to the sun at different times of the day. Results indicate that reflectance was significantly different at different azimuth angles and times of day. In addition, normalized difference vegetation index values increased when the sensor faced the sun. The results of these experiments demonstrate that turfgrass species and sensor orientation to the sun influence reflectance measurements of turfgrass." |
Language: | English |
References: | 25 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Johnsen, A. R., B. P. Horgan, and V. Cline. 2009. Effect of turf species and sensor orientation to the sun on reflectance measurement. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 31-39. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=150922 |
| If there are problems with this record, send us feedback about record 150922. |
| Choices for finding the above item: |
| Web URL(s): https://archive.lib.msu.edu/tic/its/articles/2009jou31.pdf Last checked: 10/18/2011 Requires: PDF Reader |
| MSU catalog number: b2548899 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |