Evaluation of vegetation cover using the normalized difference vegetation index (NDVI) [PDF]
Soil loss by water erosion is the main cause of soil degradation in Brazil. However, erosion can be reduced by the presence of vegetation. The Normalized Difference Vegetation Index (NDVI) makes it possible to identify the vegetative vigor of crops or ...
Gabriela Camargos Lima +6 more
doaj +4 more sources
Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary [PDF]
In this study a new remote sensing drought index called Difference Drought Index (DDI) was introduced. DDI was calculated from the Terra satellite’s MODIS sensor surface reflectance data using visible red, near-infrared and short-wave-infrared spectral ...
Gulácsi András, Kovács Ferenc
doaj +4 more sources
Mapping and Attributing Normalized Difference Vegetation Index Trends for Nepal [PDF]
Global change affects vegetation cover and processes through multiple pathways. Long time series of surface land surface properties derived from satellite remote sensing give unique abilities to observe these changes, particularly in areas with complex ...
Nir Y. Krakauer +2 more
doaj +2 more sources
Grasslands play an irreplaceable role in maintaining carbon balance and stabilizing the entire Earth’s ecosystem. Although the grasslands in Inner Mongolia are sensitive and vulnerable to climate change, a generalized effect of climate change on the ...
Yanan Li +3 more
doaj +3 more sources
Mapping of the normalized difference vegetation index in cotton field
The remote sensing data obtained at field level can provide detailed information about the variability of biophysical parameters related to yield over large areas, and present potential for monitoring these parameters throughout the crop development ...
Anamari Viegas de Araujo Motomiya +3 more
doaj +3 more sources
Connection between normalized difference vegetation index and yield in maize [PDF]
The preliminary estimation of expected yields and the accuracy of this evaluation provide information for decisions related to the harvest. The quantification of predictions makes it possible to estimate the accuracy of the prognosis. The yields that can
T. Spitkó +6 more
doaj +2 more sources
Spatial resolution of Normalized Difference Vegetation Index and greenness exposure misclassification in an urban cohort. [PDF]
Jimenez RB +3 more
europepmc +3 more sources
Validation of the normalized difference vegetation index as a measure of neighborhood greenness. [PDF]
To assess the validity of a Geographic Information Systems (GIS) measure, the Normalized Difference Vegetation Index (NDVI), as a measure of neighborhood greenness for epidemiologic research.Using remote-sensing spectral data, NDVI was calculated for a 100-m radial distance around 124 residences in greater Seattle.
Rhew IC +4 more
europepmc +4 more sources
Relationship between biophysical parameters and Normalized Difference Vegetation Index in maize
A field experiment was conducted for two years during kharif season at ARI farm, Rajendranagar, Hyderabad to study the spectral reflectance pattern of maize crop and its relationship with biophysical parameters like Leaf Area Index (LAI), stover yield ...
G. JAYASREE +3 more
doaj +3 more sources
Heterogeneous responses of wetland vegetation to climate change in the Amur River basin characterized by normalized difference vegetation index from 1982 to 2020. [PDF]
Xing Z, Li X, Mao D, Luo L, Wang Z.
europepmc +3 more sources

