Results 21 to 30 of about 131,838 (305)

Land cover classification using multi-temporal MERIS vegetation indices [PDF]

, 2007
The spectral, spatial, and temporal resolutions of Envisat's Medium Resolution Imaging Spectrometer (MERIS) data are attractive for regional- to global-scale land cover mapping.
Mathur, A., Lillesand, T.M., Chipman, J., Curran, Paul, Foody, G.M., Curran, P.J., Foody, Giles M., Dash, J.   +7 more
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RELATIONSHIP BETWEEN LAND COVER AND VEGETATION INDICES. CASE STUDY: EGHLID PLAIN, FARS PROVINCE, IRAN.

European Journal of Geography, 2023
In this study, the Visible Atmospherically Resistant Index (VARI), Weighted Difference Vegetation Index (WDRVI), Enhanced Vegetation Index (EVI), Optimized Soil-Adjusted Vegetation Index (OSAVI), Atmospherically resistant vegetation index (ARVI), SAVI ...
Marzieh MOKARRAM, Ali Darvishi BOLOORANI, Majid HOJATI   +2 more
doaj   +2 more sources

Optical instruments for measuring leaf area index in low vegetation : application in Arctic ecosystems [PDF]

, 2005
Author Posting. © Ecological Society of America, 2005. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution.
Williams, Mathew, Wijk, M.T., van, van Wijk, Mark T., van Wijk, M.T., Williams, M., Williams, Mathew; id_orcid   +5 more
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Analysis of Vegetation Behavior in a North African Semi-Arid Region, Using SPOT-VEGETATION NDVI Data

Remote Sensing, 2011
The analysis of vegetation dynamics is essential in semi-arid regions, in particular because of the frequent occurrence of long periods of drought. In this paper, multi-temporal series of the Normalized Difference of Vegetation Index (NDVI), derived from
Abdelghani Chehbouni, Claire Gruhier, Zohra Lili-Chabaane, Mehrez Zribi, Rim Amri, Benoit Duchemin   +5 more
doaj   +1 more source

Spatiotemporal variability of vegetation response to meteorological drought on the Korean Peninsula

Hydrology Research, 2023
To assess vegetation drought, it is important to understand the relationship between climate and vegetation and to accurately measure the response of vegetation activity to meteorological drought.
Haeun Jung, Jeongeun Won, Shinuk Kang, Sangdan Kim   +3 more
doaj   +1 more source

Vegetation NDVI Linked to Temperature and Precipitation in the Upper Catchments of Yellow River [PDF]

, 2012
Vegetation in the upper catchment of Yellow River is critical for the ecological stability of the whole watershed. The dominant vegetation cover types in this region are grassland and forest, which can strongly influence the eco-environmental status of ...
Ouyang, W., Hao, F., Zhang, X., Skidmore, A.K., Zhang, X, Quyang, Y., Toxopeus, A.G.   +6 more
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Methodological evaluation of vegetation indexes in land use and land cover (LULC) classification

Geology, Ecology, and Landscapes, 2020
Vegetation indices are intended to emphasize the vegetation spectral behavior in relation to the soil and other terrestrial surface targets. The objective of this study was to evaluate the vegetation cover types present in the municipality of Campo Belo ...
Vanessa Sousa da Silva, Gabriela Salami, Marília Isabelle Oliveira da Silva, Emanuel Araújo Silva, José Jorge Monteiro Junior, Elisiane Alba   +5 more
doaj   +1 more source

Estimation of 3D vegetation structure from waveform and discrete return airborne laser scanning data [PDF]

, 2012
This study presents and compares new methods to describe the 3D canopy structure with Airborne Laser Scanning (ALS) waveform data as well as ALS point data.
Olofsson, Kenneth,, Lindberg, Eva,, Sveriges lantbruksuniversitet., Olsson, Håkan,, Kenneth Olofsson, Holmgren, Johan,, Håkan Olsson, Johan Holmgren, Olofsson, Kenneth, Lindberg, Eva, Holmgren, Johan, Eva Lindberg, Olsson, Håkan   +12 more
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Combining Texture, Color, and Vegetation Index from Unmanned Aerial Vehicle Multispectral Images to Estimate Winter Wheat Leaf Area Index during the Vegetative Growth Stage

, 2023
Leaf Area Index (LAI) is a fundamental indicator of plant growth status in agronomy and environmental research. With the rapid development of drone technology, the estimation of crop LAI based on drone imagery and vegetation indices is becoming ...
Yuting Zhang, Guisheng Zhou, Quan Yin, Jianjun Wang, Zhongyang Huo, Weiling Wang, Weilong Li   +6 more
core   +1 more source

State of Major Vegetation Indices in Precision Agriculture Studies Indexed in Web of Science: A Review

Agriculture, 2023
Vegetation indices provide information for various precision-agriculture practices, by providing quantitative data about crop growth and health. To provide a concise and up-to-date review of vegetation indices in precision agriculture, this study focused
Dorijan Radočaj, Ante Šiljeg, Rajko Marinović, Mladen Jurišić   +3 more
doaj   +1 more source