Remote Sensing, 2017 Precision irrigation management is based on the accuracy and feasibility of sensor data assessing the plant water status. Multispectral and thermal infrared images acquired from an unmanned aerial vehicle (UAV) were analyzed to evaluate the applicability
Carlos Zúñiga Espinoza +3 more
doaj +1 more source
HortTechnology, 2021 Commercial optical chlorophyll meters estimate relative chlorophyll content using the ratio of transmitted red light and near-infrared (NIR) light emitted from a red light-emitting diode (LED) and an NIR LED. Normalized difference vegetation index (NDVI)
Ji-Jhong Chen, Shuyang Zhen, Youping Sun
doaj +1 more source
Applicability of the Normalized Difference Vegetation Index (NDVI) in Index-Based Crop Insurance Design [PDF]
Weather, Climate, and Society, 2011 Abstract Index insurance is becoming increasingly popular because of its ability to provide low-cost, relatively easy to implement agricultural insurance for vegetation types whose productivity has been notoriously difficult to measure and to farmers in less-developed nations where traditional crop insurance schemes are not reasonable to
Megan K. McLaurin, Calum G. Turvey
openaire +1 more source
Comparing the Normalized Difference Vegetation Index with the Google Street View Measure of Vegetation to Assess Associations between Greenness, Walkability, Recreational Physical Activity, and Health in Ottawa, Canada. [PDF]
Int J Environ Res Public Health, 2018 The manner in which features of the built environment, such as walkability and greenness, impact participation in recreational activities and health are complex. We analyzed survey data provided by 282 Ottawa adults in 2016.
Villeneuve PJ +11 more
europepmc +2 more sources
Assessing spectral similarities between rainfed and irrigated croplands in a humid environment for irrigated land mapping [PDF]
, 2014 Deriving accurate spatial assessments of the distribution of irrigated crops has become more important in recent years for water resource planning, particularly where irrigation water resources are constrained.
Shamal, S. A. M., Weatherhead, E. K.
core +1 more source
Normalized difference vegetation index for rice management in El Espinal, Colombia
Dyna, 2018 Aerial images and the Normalized Difference Vegetation Index (NDVI) of the stage after panicle initiation were evaluated as tools that help large-scale rice monitoring and decision-making that favors crop profitability. NDVI was used to identify problems
Mauricio Gonzalez Betancourt +1 more
doaj +1 more source
Vegetation changes and land surface feedbacks drive shifts in local temperatures over Central Asia [PDF]
, 2017 Vegetation changes play a vital role in modifying local temperatures although, until now, the climate feedback effects of vegetation changes are still poorly known and large uncertainties exist, especially over Central Asia.
Cui, Junjie +5 more
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Integração de parâmetros morfométricos e imagem Aster para a delimitação das fitofisionomias da Serra da Canastra, Parque Nacional da Serra da Canastra, MG [PDF]
, 2010 Este trabalho teve como objetivo delimitar as fitofisionomias utilizando parâmetros morfométricos e imagens do sensor ASTER na Serra da Canastra, Parque Nacional da Serra da Canastra, MG.
Carvalho Júnior, Osmar Abílio de +6 more
core +3 more sources
Remote SensingThe Normalized Difference Vegetation Index (NDVI) is widely used for monitoring vegetation status, as accurate and reliable NDVI time series are crucial for understanding the relationship between environmental conditions, vegetation health, and ...
Qi Zhao, Yonghua Qu
semanticscholar +1 more source
VEGETATION INDICES FOR IRRIGATED CORN MONITORING [PDF]
Engenharia Agrícola, 2020 Monitoring of large agricultural lands is often hampered by data collection logistics at field level. To solve such a problem, remote sensing techniques have been used to estimate vegetation indices, which can subsidize crop management decision-making ...
Francisco C. G. Alvino +4 more
doaj +1 more source