Results 11 to 20 of about 110,255 (346)

COVID-19 lockdown effect on land surface temperature and normalized difference vegetation index

open access: goldGeomatics, Natural Hazards & Risk, 2021
Coronavirus disease (COVID-19) has changed the human lifestyle just like a disaster in 2020. Many people died throughout the world due to its severe attack.
Subhanil Guha, Himanshu Govil
doaj   +2 more sources

The impact of environmental factors on the measurement of the normalized difference vegetation index

open access: hybridActa Agraria Debreceniensis, 2012
The level of nitrogen supply of a plant population can be quickly measured with non-destructive optical measurement devices and the differentiated determination of nitrogen shortage and the replenishment of nitrogen can also be carried out. The level of nitrogen supply is based on the fact that the chlorophyll content of crops is in close correlation ...
Attila Dobos, Róbert Víg, János Nagy
openalex   +3 more sources

MODIS normalized difference vegetation index (NDVI) and vegetation phenology dynamics in the Inner Mongolia grassland [PDF]

open access: yesSolid Earth, 2015
The Inner Mongolia grassland, one of the most important grazing regions in China, has long been threatened by land degradation and desertification, mainly due to overgrazing.
Z. Gong   +7 more
doaj   +4 more sources

Drought Assessment using Standardized Precipitation Index and Normalized Difference Vegetation Index [PDF]

open access: diamondInternational Journal of Current Microbiology and Applied Sciences, 2020
Aishwarya Panda   +3 more
openalex   +2 more sources

Detection of Ground Materials Using Normalized Difference Indices with a Threshold: Risk and Ways to Improve

open access: yesRemote Sensing, 2021
In this short communication, we describe the shortcomings and pitfalls of a commonly used method to detect ground materials that relies on setting thresholds for normalized difference indices.
Fen Chen   +4 more
doaj   +1 more source

Lake Water Quality and Dynamics Assessment during 1990–2020 (A Case Study: Chao Lake, China)

open access: yesAtmosphere, 2023
Settlements along the coastlines of oceans and lakes, which are among the world’s most densely populated areas, are in immediate danger due to stressors brought on by climate change and dangers posed by human activities. This study investigates the water
Chuan Li   +3 more
doaj   +1 more source

Response of vegetation normalized different vegetation index to different meteorological disaster indexes in karst region of Guangxi, China

open access: yesHeliyon, 2023
Fragile karst areas of Guangxi are the key areas of vegetation protection and restoration work of the government. It is of great significance to study the effects of meteorological disasters on vegetation change for disaster prevention and reduction and ecological protection in the karst areas.
Ying Xie   +5 more
openaire   +3 more sources

The Spectral Invariant Approximation within Canopy Radiative Transfer to Support the Use of the EPIC/DSCOVR Oxygen B-band for Monitoring Vegetation [PDF]

open access: yes, 2017
EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer onboard DSCOVR (Deep Space Climate Observatory) spacecraft. In addition to the NIR (780 nm) and the ‘red’ (680 nm) channels, EPIC also has the O2 A-band (764±0.2 nm) and B-band ...
Knjazihhin, Juri   +2 more
core   +6 more sources

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