Results 51 to 60 of about 21,178 (146)

Towards understanding climate change impacts: monitoring the vegetation dynamics of terrestrial national parks in Indonesia

Scientific Reports
Monitoring vegetation dynamics in terrestrial national parks (TNPs) is crucial for ensuring sustainable environmental management and mitigating the potential negative impacts of short- and long-term disturbances understanding the effect of climate change
Fatwa Ramdani, Putri Setiani, Riswan Sianturi   +2 more
doaj   +1 more source

Spatio-Temporal Evolution of Olive Tree Water Status Using Land Surface Temperature and Vegetation Indices Derived from Landsat 5 and 8 Satellite Imagery in Southern Peru

Agriculture
Land surface temperature (LST) and its relationship with vegetation indices (VIs) have proven to be effective for monitoring water stress in large-scale crops.
Javier Alvaro Quille-Mamani, German Huayna, Edwin Pino-Vargas, Samuel Chucuya-Mamani, Bertha Vera-Barrios, Lia Ramos-Fernandez, Jorge Espinoza-Molina, Fredy Cabrera-Olivera   +7 more
doaj   +1 more source

Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary

Journal of Environmental Geography, 2015
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   +1 more source

Enhanced Radar Vegetation Index for Grassland Fractional Vegetation Cover Estimation Based on Polarimetric SAR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Fractional vegetation cover (FVC) is a key indicator for assessing vegetation growth and ecological conditions in grasslands. Its estimation holds significant value in smart pastoral management and global ecological research.
Pudong Li, Xiaoqi Lv, Pingping Huang, Kunpeng Xu, Xiujuan Li, Weixian Tan   +5 more
doaj   +1 more source

The Enhanced Vegetation Index (EVI) as a proxy for diet quality and composition in a mountain ungulate

Ecological Indicators, 2016
In recent years, the use of satellite-derived vegetation indices has become a powerful tool to collect information on vegetation dynamics in a broad range of ecosystems worldwide. However, the utility of these indices as indicators of the diet composition and quality of herbivore mammals has not yet been established. This work focuses on exploring such
Miriam Villamuelas, Néstor Fernández, Elena Albanell, Arturo Gálvez-Cerón, Jordi Bartolomé, Gregorio Mentaberre, Jorge R. López-Olvera, Xavier Fernández-Aguilar, Andreu Colom-Cadena, Josep María López-Martín, Javier Pérez-Barbería, Mathieu Garel, Ignasi Marco, Emmanuel Serrano   +13 more
openaire   +2 more sources

Determining vegetation dynamics through the enhanced vegetation index and meteorological variables for the ribeirão Cachimbal basin, Rio de Janeiro-Brazil

Bioscience Journal, 2018
The objective of this study was to analyze a spatiotemporal study of the vegetation dynamics of the hydrographic basin of the Ribeirão Cachimbal in Rio de Janeiro (Brazil), based on Moderate-Resolution Imaging Spectroradiometer imagery acquired by the TERRA satellite.
Santos, Gilsonley Lopes, Delgado, Rafael Coll, Pereira, Marcos Gervasio, Gaia-Gomes, João Henrique   +3 more
openaire   +5 more sources

Utilização de índices de vegetação para os sistemas de informação geográfica - USE OF ÍNDEX VEGETATION FOR THE GEOGRAPHIC INFORMATION SYSTEM

Caminhos de Geografia, 2010
Os índices de Vegetação (IV) são modelos matemáticos desenvolvidos para avaliar a cobertura vegetal e diagnosticar índice de área foliar, biomassa, porcentagem de cobertura do solo, atividade fotossintética e produtividade; e têm sido utilizados com ...
Aline Braga Marcussi, Célia Regina Paes Bueno, Daniela Popim Miqueloni, Christiano Luna Arraes   +3 more
doaj  

Vegetation Baseline and Urbanization Development Level: Key Determinants of Long-Term Vegetation Greening in China’s Rapidly Urbanizing Region

Remote Sensing
Urban vegetation shows significant spatial differences due to the combined effects of natural and human factors, yet fine-scale evolutionary patterns and their cross-scale feedback mechanisms remain limited. This study focuses on the Yangtze River Delta (
Ke Zeng, Mengyao Ci, Shuyi Zhang, Ziwen Jin, Hanxin Tang, Hongkai Zhu, Rui Zhang, Yue Wang, Yiwen Zhang, Min Liu   +9 more
doaj   +1 more source

Monitoring Perennial Sub-Surface Waterlogged Croplands Based on MODIS in Jianghan Plain, Middle Reaches of the Yangtze River

Journal of Integrative Agriculture, 2014
Perennial waterlogged soil (PWS) is induced by the high level of groundwater, and has a persistent impact on natural ecosystems and agricultural production.
Fei XIAO, Yuan-zheng LI, Yun DU, Feng LING, Yi YAN, Qi FENG, Xuan BAN   +6 more
doaj   +1 more source

Spatial Resolution Enhancement of Vegetation Indexes via Fusion of Hyperspectral and Multispectral Satellite Data

Remote Sensing
The definition and calculation of a spectral index suitable for characterizing vegetated landscapes depend on the number and widths of the bands of the imaging instrument. Here, we point out the advantages of performing the fusion of hyperspectral (HS) satellite data with the multispectral (MS) bands of Sentinel-2 to calculate such vegetation indexes ...
Luciano Alparone, Alberto Arienzo, Andrea Garzelli   +2 more
openaire   +4 more sources