Results 21 to 30 of about 21,178 (146)

Flash drought development and cascading impacts associated with the 2010 Russian heatwave

Environmental Research Letters, 2020
The 2010 western Russian heatwave was characterized by historically high surface temperatures that led to devastating impacts on the environment, economy, and society.
Jordan I Christian, Jeffrey B Basara, Eric D Hunt, Jason A Otkin, Xiangming Xiao   +4 more
doaj   +1 more source

Multiple Greenness Indexes Revealed the Vegetation Greening during the Growing Season and Winter on the Tibetan Plateau despite Regional Variations

Remote Sensing, 2023
Vegetation is an essential component of terrestrial ecosystems and supplies multiple ecosystem benefits and services. Several indices have been used to monitor changes in vegetation communities using remotely-sensed data. However, only a few studies have
Jinxia Lv, Wenwu Zhao, Ting Hua, Lihao Zhang, Paulo Pereira   +4 more
doaj   +1 more source

Phenological Dynamics of Vegetation Using the Enhanced Vegetation Index (EVI) in Regions of Bahia State

Journal of Hyperspectral Remote Sensing, 2018
The purpose of this study is to analyze the dynamics of EVI (Enhanced Vegetation Index) variability in different time scales of the different biomes in the state of Bahia. Images of the MODIS / Terra (Moderate Resolution Imaging Spectroradiometer) sensor with spatial resolution of 1km were used for the period between 2001 and 2015.
Wanessa Luana De Brito Costa, Célia Campos Braga, Clênia Rodrigues Alcântara, Adriana de Souza Costa   +3 more
openaire   +2 more sources

Crop Classification Based on a Novel Feature Filtering and Enhancement Method

Remote Sensing, 2019
Vegetation indices, such as the normalized difference vegetation index (NDVI) or enhanced vegetation index (EVI) derived from remote sensing images, are widely used for crop classification.
Limin Wang, Qinghan Dong, Lingbo Yang, Jianmeng Gao, Jia Liu   +4 more
doaj   +1 more source

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

Comparative analysis of different vegetation indices with respect to atmospheric particulate pollution using sentinel data

Applied Computing and Geosciences, 2020
Several remote sensing based indices have been developed for studying vegetation using varied combinations of spectral bands. However, for regions like Gautam Buddha Nagar (GBN) district where the atmospheric condition is highly influenced by particulate
Shivangi S. Somvanshi, Maya Kumari
doaj   +1 more source

Estimating Riparian and Agricultural Actual Evapotranspiration by Reference Evapotranspiration and MODIS Enhanced Vegetation Index [PDF]

Remote Sensing, 2013
Dryland river basins frequently support both irrigated agriculture and riparian vegetation and remote sensing methods are needed to monitor water use by both crops and natural vegetation in irrigation districts. We developed an algorithm for estimating actual evapotranspiration (ETa) based on the Enhanced Vegetation Index (EVI) from the Moderate ...
Pamela L. Nagler, Edward P. Glenn, Uyen Nguyen, Russell L. Scott, Tanya Doody   +4 more
openaire   +2 more sources

Enhancing Vegetation Monitoring: A Proposal for a Sentinel-2 Based Vegetation Health Index

Frontiers in Remote Sensing
Vegetation serves as a vital carbon sink, crucial for regulating CO2 and O2 levels in the atmosphere. However, the declining health of vegetation can contribute to a rise in greenhouse gas emissions. Utilizing remote sensing satellite imagery, we can effectively monitor global changes in vegetation health in near-real time.
Sandeep Kumar, Swarnendu Sekhar Ghosh, Dipankar Mandal, Dipankar Mandal, Avik Bhattacharya, Alok Porwal, L. Karthikeyan, L. Karthikeyan   +7 more
openaire   +2 more sources

Examining the relationship between the Enhanced Vegetation Index and grapevine phenology

European Journal of Remote Sensing, 2014
AbstractMonitoring the main grapevine phenological stages is a key procedure for optimizing vineyard activities and improving yield and quality attributes. Remote sensing may be an effective and practical monitoring tool, as data from on-board satellite sensors can measure vegetative growth.
Helder Fraga, Malik Amraoui, Aureliano C. Malheiro, José Moutinho-Pereira, José Eiras-Dias, José Silvestre, João A. Santos   +6 more
openaire   +1 more source

Greenness and allergic rhinitis in children: the moderating and mediating effects of meteorological factors and air pollution

Frontiers in Climate
BackgroundEmerging evidence suggests that greenness may be beneficial to human health; however, the relationship between greenness exposure and childhood allergic rhinitis (AR) is inconsistent, and whether and how the link is moderated or mediated by ...
Yabin Hu, Yabin Hu, Guiyan Yang, Dan Wang, Wangyang Gu, Qingpeng Li, Linling Xu, Jingyi Tang, Jingyi Tang, Hui Wei, Shilu Tong, Shilu Tong, Zonghua Li, Shijian Liu   +13 more
doaj   +1 more source