Results 21 to 30 of about 438,248 (298)

Analysis of Vegetation Behavior in a North African Semi-Arid Region, Using SPOT-VEGETATION NDVI Data

open access: yesRemote 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   +5 more
doaj   +1 more source

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

open access: yesHydrology 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   +3 more
doaj   +1 more source

Methodological evaluation of vegetation indexes in land use and land cover (LULC) classification

open access: yesGeology, 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   +5 more
doaj   +1 more source

Drought events and their effects on vegetation productivity in China [PDF]

open access: yes, 2016
Many parts of the world have experienced frequent and severe droughts during the last few decades. Most previous studies examined the effects of specific drought events on vegetation productivity.
Belward A. S.   +9 more
core   +3 more sources

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

open access: yes, 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.
A. Mathur   +19 more
core   +1 more source

MODISTools - downloading and processing MODIS remotely sensed data in R [PDF]

open access: yes, 2014
Remotely sensed data – available at medium to high resolution across global spatial and temporal scales – are a valuable resource for ecologists. In particular, products from NASA's MODerate-resolution Imaging Spectroradiometer (MODIS), providing twice ...
Andy Purvis   +6 more
core   +2 more sources

What Kerdoe’S Vegetative Index Really Reflects?

open access: yesJournal of Education, Health and Sport, 2015
Fajda Oleksandra I., Hrinchenko Borys V., Snihur Oleh V., Barylyak Liliya G., Zukow Walery. What Kerdoe’s Vegetative Index really reflects? Journal of Education, Health and Sport. 2015;5(12):279-288. ISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.35421 http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%2812%29%3A279-288 http://pbn.nauka ...
Oleksandra I. Fajda   +4 more
openaire   +3 more sources

Evaluation of pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment with landsat thematic mapper [PDF]

open access: yes, 2011
In this study several pre/post-fire differenced spectral indices for assessing burn severity in a Mediterranean environment are evaluated. GeoCBI (Geo Composite Burn Index) field data of burn severity were correlated with remotely sensed measures, based ...
Goossens, Rudi   +3 more
core   +2 more sources

Monitoring Vegetation Area in Baghdad Using Normalized Difference Vegetation Index

open access: yesIraqi Journal of Science, 2022
       Vegetation monitoring is considered an important application in remote sensing task due to variation of vegetation types and their distribution. The vegetation concentration around the Earth is increase in 5% in 2000 according to NASA monitoring. This increase is due to the Indian vegetable programs.
Abeer N. Abdul-Hammed, Alaa S. Mahdi
openaire   +1 more source

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

open access: yesAgriculture, 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   +3 more
doaj   +1 more source

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