Journal ArticleDOI
A PRI-based water stress index combining structural and chlorophyll effects: Assessment using diurnal narrow-band airborne imagery and the CWSI thermal index
Pablo J. Zarco-Tejada,Victoria González-Dugo,Larry E. Williams,Lola Suarez,J.A.J. Berni,David A. Goldhamer,Elias Fereres,Elias Fereres +7 more
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TLDR
In this paper, a new formulation of the Photochemical Reflectance Index (PRI) was proposed, in which the standard PRI index was normalized by an index that is sensitive to canopy structure (Renormalized Difference Vegetation Index, RDVI) and by a red edge index that was sensitive to chlorophyll content (R 700 /R 670 ).About:
This article is published in Remote Sensing of Environment.The article was published on 2013-11-01. It has received 244 citations till now. The article focuses on the topics: Photochemical Reflectance Index & Stomatal conductance.read more
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Journal ArticleDOI
Significant remote sensing vegetation indices: A review of developments and applications
Jinru Xue,Baofeng Su +1 more
TL;DR: The spectral characteristics of vegetation are introduced and the development of VIs are summarized, discussing their specific applicability and representativeness according to the vegetation of interest, environment, and implementation precision.
Journal ArticleDOI
Overview and Current Status of Remote Sensing Applications Based on Unmanned Aerial Vehicles (UAVs)
TL;DR: An overview of different areas of remote sensing applications based on unmanned aerial platforms equipped with a set of specific sensors and instruments is presented, each independent from the others so that the reader does not need to read the full paper when a specific application is of interest.
Journal ArticleDOI
Intercomparison of UAV, Aircraft and Satellite Remote Sensing Platforms for Precision Viticulture
Alessandro Matese,Piero Toscano,Salvatore Filippo Di Gennaro,Lorenzo Genesio,Francesco Primo Vaccari,Jacopo Primicerio,Claudio Belli,Alessandro Zaldei,Roberto Bianconi,Beniamino Gioli +9 more
TL;DR: This work compares NDVI surveys performed with UAV, aircraft and satellite, to assess the capability of each platform to represent the intra-vineyard vegetation spatial variability and results indicate that the different platforms provide comparable results in vineyards characterized by coarse vegetation gradients and large vegetation clusters.
Journal ArticleDOI
On the Use of Unmanned Aerial Systems for Environmental Monitoring
Salvatore Manfreda,Matthew F. McCabe,P. E. Miller,Richard Lucas,Victor Pajuelo Madrigal,Giorgos Mallinis,Eyal Ben Dor,David Helman,Lyndon Estes,Giuseppe Ciraolo,Jana Müllerová,Flavia Tauro,M. Isabel P. de Lima,João L. M. P. de Lima,Antonino Maltese,Félix Francés,Kelly K. Caylor,Marko Kohv,Matthew T. Perks,Guiomar Ruiz-Pérez,Zhongbo Su,Giulia Vico,Brigitta Tóth,Brigitta Tóth +23 more
TL;DR: An overview of the existing research and applications of UAS in natural and agricultural ecosystem monitoring is provided in order to identify future directions, applications, developments, and challenges.
Journal ArticleDOI
Perspectives for Remote Sensing with Unmanned Aerial Vehicles in Precision Agriculture.
Wouter Maes,Kathy Steppe +1 more
TL;DR: The progress of remote sensing with UAVs in drought stress, in weed and pathogen detection, in nutrient status and growth vigor assessment, and in yield prediction is reviewed.
References
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MonographDOI
Plants and Microclimate, A Quantitative Approach to Environmental Plant Physiology
TL;DR: A quantitative approach to plant-environment interactions is presented in this paper, where a quantitative approach is used to quantify the plant's environment interactions, including radiation, heat, mass and momentum transfer, energy balance and evaporation.
Journal ArticleDOI
Optimization of soil-adjusted vegetation indices
TL;DR: In this paper, the sensitivity of the normalized difference vegetation index (NDVI) to soil background and atmospheric effects has generated an increasing interest in the development of new indices, such as the soil adjusted vegetation index, transformed soil-adjusted vegetation index and atmospheric resistant vegetation index.
Journal ArticleDOI
A narrow-waveband spectral index that tracks diurnal changes in photosynthetic efficiency
TL;DR: In this article, the authors presented a new "physiological reflectance index" (PRI) isolated from narrow waveband spectral measurements of sunflower canopies, which correlates with the epoxidation state of the xanthophyll cycle pigments.
Book ChapterDOI
Chlorophyll fluorescence as a nonintrusive indicator for rapid assessment of in vivo photosynthesis
TL;DR: In the past, ecophysiologically oriented photosynthesis research has been governed by gas exchange measurements, mainly involving sophisticated (and costly) systems for simultaneous detection of CO2 uptake and H2O evaporation.
Journal ArticleDOI
Canopy temperature as a crop water stress indicator
TL;DR: In this paper, a crop water stress index (CWSI) was calculated using infrared thermometry, along with wet and dry-bulb air temperatures and an estimate of net radiation.