Vegetation index
Enhanced Vegetation Index (EVI) na análise da dinâmica da vegetação da reserva biológica de Sooretama, ES.
... ABSTRACT - Temporal series analysis techniques are used to characterize the behavior of natural phenomenon in time domain. In this paper, 125 Enhanced Vegetation Index (EVI) observations were analyzed ...
9
Analysis of vegetation dynamics using the normalized difference vegetation index (NDVI) at the archipelago of Fernando de Noronha, Pernambuco, Brazil
... the vegetation dynamics of the main and single inhabited island of the Fernando de Noronha Archipelago are a fill reduced, since the researches developed analyze significant data on the flora and the fauna, but do ...
18
Analysis of vegetation dynamics using time-series vegetation index data from Earth Observation Satellites
... satellite vegetation index time ...difference vegetation index (NDVI) data provided by MODerate resolution Imaging Spectroradiome- ter and Satellite Pour l’Observation de la Terre ...
156
SPATIAL CORRELATION OF SOYBEAN PRODUCTIVITY, ENHANCED VEGETATION INDEX (EVI) AND AGROMETEOROLOGICAL VARIABLES
... Many studies related to agricultural crop monitoring have used images of the Improved Vegetation Index (EVI) (HUETE et al., 1997; JOHANN et al., 2012, SOUZA et al., 2015) since it has the advantage of being ...
15
Nitrogen management in wheat based on the normalized difference vegetation index (NDVI)
... ABSTRACT: Biomass production and nitrogen (N) accumulated in wheat shoots may be used for quantifying optimal topdressing nitrogen doses. The objective of this study was to develop and validate models for estimating the ...
9
Sugarcane leaf area estimate obtained from the corrected Normalized Difference Vegetation Index (NDVI)
... and vegetation canopies have increased the use of data from orbital remote sensors in sugarcane ...Area Index (LAI) estimation model, concerning the Normalized Difference Vegetation Index ...
9
Estimate soil moisture using trapezoidal relationship between remotely sensed land surface temperature and vegetation index
... fractional vegetation cover, sharp boundaries (edges) in the data reflect real physical limits: ...100% vegetation cover, and lower and upper limits of the surface soil water content, ...
38
Normalized difference vegetation index of the conservation unit Gama – Cabeça-de-Veado, Brasilia
... Difference Vegetation In- dex - NDVI), que explora a diferença existente entre as res- postas da vegetação nas bandas relativas ao vermelho e ao infravermelho próximo, otimizando e ampliando as informações delas ...
5
Rev. bras. meteorol. vol.29 número4
... The direct estimation of the soil heat lux (G) by remote sensing data is not possible. For this, several models have been proposed empirically from the relation of G measures and biophysical parameters of various types ...
14
MAPPING DECIDUOUS FORESTS BY USING TIME SERIES OF FILTERED MODIS NDVI AND NEURAL NETWORKS Thomaz Chaves de Andrade Oliveira1 , Luis Marcelo Tavares de Carvalho2 , Luciano Teixeira de Oliveira
... that vegetation phenology tends to follow relatively well defined temporal ...deciduous vegetation and many crops, leaf emergence tends to be followed by a period of rapid growth, followed by a relatively ...
8
Avaliação da dinâmica do cultivo da cana-de-açúcar no estado de São Paulo por meio de perfis temporais de dados MODIS.
... banda do azul por ser altamente influenciada pelos aerossóis da atmosfera. Deste modo, reduz os ruídos nas imagens, mostrando ter um comportamento muito similar ao EVI (Enhanced Vegetation Index), com o ...
10
PHENOLOGICAL CHARACTERIZATION OF COFFEE CROP (Coffea arabica L.) FROM MODIS TIME SERIES
... RESUMO. O Caf´e Ar´abica ( Coffea arabica L.) apresenta um ciclo fenol´ogico de dois anos, sendo relevante o seu conhecimento para a previs˜ao de safras no Brasil. O objetivo deste trabalho foi caracterizar a fenologia ...
10
The use of NOAA/AVHRR satellite data for monitoring and assessment of forest fires and floods
... Difference Vegetation Index (NDVI) and surface temperature (ST) derived from the National Oceanic and At- mospheric Administration’s Advanced Very High Resolution Radiometer (NOAA/AVHRR) satellite ...
14
Variabilidade espacial de índices de vegetação e propriedades do solo em sistema de integração lavoura-pecuária
... the vegetation index and spatial variability of physical and chemical soil properties in an integrated crop-livestock system ...difference vegetation index (NDVI) was associated with ECa and ...
6
Asynchronous response of tropical forest leaf phenology to seasonal and el Nino-driven drought.
... Difference Vegetation Index (NDVI) from February 2000-February 2009 to show that rainforests and dry forests in the Hawaiian Islands exhibit asynchronous responses in leaf phenology to seasonal and El ...
7
Evaluation of a linear spectral mixture model and vegetation indices (NDVI and EVI) in a study of schistosomiasis mansoni and Biomphalaria glabrata distribution in the state of Minas Gerais, Brazil
... Efforts to predict the prevalence of schistosomia- sis using Geographic Information System (GIS) were first attempted in the Philippines and the Caribbean by Cross et al. (1984). In Brazil, the first studies were per- ...
7
Two approaches to calculate TVDI in humid subtropical climate of
... TVDI was calculated from the Moderate Resolu- tion Imaging Spectroradiometer (MODIS) products. The T S and Normalized Difference Vegetation Index (NDVI) data had 1,000 m spatial resolution corresponding to ...
10
Mapping forest stand complexity for woodland caribou habitat assessment using multispectral airborne imagery
... Difference Vegetation Index) images calculated from satellite data with medium to low spatial resolution have been used in other wildlife habitat ...
7
Utilização de índices de vegetação para os sistemas de informação geográfica - USE OF ÃNDEX VEGETATION FOR THE GEOGRAPHIC INFORMATION SYSTEM
... Ratio Vegetation Index); PVI (Perpendicular Vegetation Index); DVI (Difference Vegetation Index); SAVI (Soil Ajusted Vegetation Index); TSAVI (Transformed Soil ...
13
USE OF ACTIVE OPTICAL SENSOR IN THE CHARACTERISTICS ANALYSIS OF THE FERTIGATED BRACHIARIA WITH TREATED SEWAGE
... difference vegetation index (NDVI) is an indicative of vegetation activity that enables to estimate the leaf area, the percentage of green cover and grain yield (Bredemeier et ...and ...
9