Results 31 to 40 of about 7,084 (203)

An index for discrimination of mangroves from non-mangroves using LANDSAT 8 OLI imagery

MethodsX, 2018
Over the last few decades several vegetation indices were used to map Mangrove forest using satellite images. Difficulty still persists in discrimination of mangroves from non-mangrove vegetation, especially in areas where mangrove species are mixed with
Kaushik Gupta, Anirban Mukhopadhyay, Sandip Giri, Abhra Chanda, Sayani Datta Majumdar, Sourav Samanta, Debasish Mitra, Rabindro N. Samal, Ajit K. Pattnaik, Sugata Hazra   +9 more
doaj   +1 more source

Analysis of desertification and the driving factors over the Loess Plateau

Geocarto International, 2023
Land desertification poses a severe global ecological threat. Loess Plateau, a typical region, was extensively studied. This study conducted a fitting analysis between the Vegetation Index: Enhanced Vegetation Index (EVI), kernel Normalized Difference ...
Xu Zhang, Ling Han, Liangzhi Li, Zongfan Bai   +3 more
doaj   +1 more source

A Normalized Difference Vegetation Index (NDVI) Time-Series of Idle Agriculture Lands: A Preliminary Study

Engineering Journal, 2011
In this paper, the NDVI time-series collected from the study area between year 2003 and 2005 of all land cover types are plotted and compared. The study area is the agricultural zones in Banphai District, Khonkean, Thailand. The LANDSAT satellite images of different dates were first transformed into a time series of Normalized Difference Vegetation ...
Vaiphasa, C., Piamduaytham, S., Vaiphasa, T., Skidmore, A.K.   +3 more
openaire   +4 more sources

Examining the relationship between land surface temperature and landscape features using spectral indices with Google Earth Engine

Heliyon, 2022
Land surface temperature (LST) is strongly influenced by landscape features as they change the thermal characteristics of the surface greatly. Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Normalized Difference ...
Bishal Roy, Ehsanul Bari
doaj   +1 more source

Land use changes and its impact on biophysical environment: Study on a river bank

Egyptian Journal of Remote Sensing and Space Sciences, 2021
The rapidly changing land use from agriculture to aquaculture and its emerging adverse impact on various biophysical environments along the Rasulpur River bank, West Bengal, India have been quantified by using Landsat data from 2003 to 2017.
Suraj Kumar Mallick, Somnath Rudra
doaj   +1 more source

Groundwater Rise Sustains the World's Largest Alpine Water System Under Global Warming

Advanced Science, EarlyView.
Shallow groundwater depth (SGWD) across the non‐permafrost plains of the Qinghai–Xizang Plateau decreased at averagely 0.02 m year−1, adding 31.44 Gt of freshwater storage from 2000 to 2020 and sustaining ∼53 500 km2 of alpine ecosystems. A vadose‐zone capacity of 426.6 Gt reveals these aquifers as promising reservoirs, highlighting groundwater's ...
Jianqing Du, Zhixiang Niu, Yanfen Wang, Shirui Zhou, Youqing Yang, Xiang Wei, Haishan Niu, Yitao Zhang, Anquan Xia, Yali Liu, Yanbin Hao, Kai Xue, Bingfang Wu, Xinquan Zhao, Tandong Yao, Yiyu Chen   +15 more
wiley   +1 more source

Multifractal Downscaling of Rainfall Using Normalized Difference Vegetation Index (NDVI) in the Andes Plateau

PLOS ONE, 2017
Dans cet article, une technique de réduction d'échelle multifractale est appliquée à un indice de végétation normalisé (NDVI) correctement transformé et corrigé du décalage afin d'obtenir des estimations quotidiennes des précipitations dans une zone du haut plateau andin péruvien.
Luis A. Duffaut Espinosa, Adolfo Posadas, M. Carbajal, Roberto Quiroz   +3 more
openaire   +5 more sources

The effects of climate change on normalized difference vegetation index (NDVI) in the Northeast of Iran

Modeling Earth Systems and Environment, 2020
On the basis of land use/land cover map, satellite derived images of NDVI, air temperature and precipitation, the correlations between NDVI-air temperature and NDVI-precipitation over time period of 1987–2016 in inter-annual/monthly scales were analyzed. The present study investigated the relationships between inter-annual/monthly variations of climate
Ali Bagherzadeh, Abdollah Vosugh Hoseini, Leila Homami Totmaj   +2 more
openaire   +2 more sources

Rainfall Shapes the Diversity of Soil Nitrogen‐Fixing Microorganisms Worldwide

Advanced Science, EarlyView.
This study reveals the distinctive pattern and mechanism of rainfall driving the global biodiversity and biogeography of soil potential N‐fixing microorganisms, and constructs the theoretical framework. The results guide us on how to maintain ecosystem productivity under future climate changes (e.g., whether a specific region needs more N fertilizers ...
Bin Hua, Shuang Pang, Ang Li, Zonghao Hu, Honghui Wu, Shuhan Zhang, Yi Fan, Yi Wu, Wei Yang, Yachao Zhao, Yupeng Guan, Baoming Ji, Deliang Kong, Yong Zhao, Anton A. Goncharov, Anastasia Yu. Korotkevich, Rong Mao, Yang Zhang, Ximei Zhang   +18 more
wiley   +1 more source

Improvement of Forest Change Maps Based on Normalized Difference Vegetation Index (NDVI)

, 2022
Normalized Difference Vegetation Index (NDVI) is one of the most widely used numerical indicator that uses the visible bands (VIS) and near-infrared bands (NIR) of the electromagnetic spectrum, its use as an indicator for vegetation and vegetation health based on how plants reflect certain ranges of the electromagnetic spectrum.
SIDAHMED, Anwar, JALAL, Rashid, AHMED, Elyas, D'ANNUNZIO, Rémi, SANDKER, Marekae   +4 more
openaire   +4 more sources