Results 11 to 20 of about 432,356 (303)

A Novel Index to Detect Vegetation in Urban Areas Using UAV-Based Multispectral Images

open access: yesApplied Sciences, 2021
Unmanned aerial vehicles (UAVs) equipped with high-resolution multispectral cameras have increasingly been used in urban planning, landscape management, and environmental monitoring as an important complement to traditional satellite remote sensing ...
Geunsang Lee, Jeewook Hwang, Sangho Cho
doaj   +1 more source

Analysis of Vegetation Index in Ambon City Using Sentinel-2 Satellite Image Data with Normalized Difference Vegetation Index (NDVI) Method based on Google Earth Engine

open access: yesJournal of Innovation Information Technology and Application, 2023
Rapid urban development and increasing human activities in the city can affect the decline in the Vegetation Index in Ambon City. The research aims to analyze the vegetation index using sentinel-2 satellite image data with the Normalized Difference ...
Heinrich Rakuasa   +1 more
doaj   +1 more source

KLASIFIKASI WILAYAH RISIKO BENCANA BANJIR DI KOTA SEMARANG DENGAN PERHITUNGAN INDEKS VEGETASI

open access: yesJTSL (Jurnal Tanah dan Sumberdaya Lahan), 2023
Land use in an area is influenced by population growth and activities. Changes in land use continuously will cause environmental changes that often trigger an increase in natural disasters.
Adenia Kusuma Dayanthi   +2 more
doaj   +1 more source

UAV-Derived Spectral Indices for the Evaluation of the Condition of Rye in Long-Term Field Experiments

open access: yesAgriculture, 2022
The aim of the study was to evaluate the effect of various fertilization treatments, including nitrogen, potassium and phosphorus fertilization, in long-term experiments for selected UAV (unmanned aerial vehicle)-derived spectral vegetation indices (NDVI—
Elżbieta Wójcik-Gront   +2 more
doaj   +1 more source

A PROPOSED NEW VEGETATION INDEX, THE TOTAL RATIO VEGETATION INDEX (TRVI), FOR ARID AND SEMI-ARID REGIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Vegetation indices that provide important key to predict amount vegetation in forest such as percentage vegetation cover, aboveground biomass, and leaf-area index. Arid and semi-arid areas are not exempt of this rule.
H. Fadaei, R. Suzuki, T. Sakai, K. Torii
doaj   +1 more source

RELATIONSHIP BETWEEN LAND COVER AND VEGETATION INDICES. CASE STUDY: EGHLID PLAIN, FARS PROVINCE, IRAN.

open access: yesEuropean Journal of Geography, 2023
In this study, the Visible Atmospherically Resistant Index (VARI), Weighted Difference Vegetation Index (WDRVI), Enhanced Vegetation Index (EVI), Optimized Soil-Adjusted Vegetation Index (OSAVI), Atmospherically resistant vegetation index (ARVI), SAVI ...
Marzieh MOKARRAM   +2 more
doaj   +2 more sources

Land cover classification using multi-temporal MERIS vegetation indices [PDF]

open access: yes, 2007
The spectral, spatial, and temporal resolutions of Envisat's Medium Resolution Imaging Spectrometer (MERIS) data are attractive for regional- to global-scale land cover mapping.
A. Mathur   +19 more
core   +1 more source

Spatiotemporal variability of vegetation response to meteorological drought on the Korean Peninsula

open access: yesHydrology Research, 2023
To assess vegetation drought, it is important to understand the relationship between climate and vegetation and to accurately measure the response of vegetation activity to meteorological drought.
Haeun Jung   +3 more
doaj   +1 more source

Estimating vegetation cover from high-resolution satellite data to assess grassland degradation in the Georgian Caucasus [PDF]

open access: yes, 2016
In the Georgian Caucasus, unregulated grazing has damaged grassland vegetation cover and caused erosion. Methods for monitoring and control of affected territories are urgently needed.
Feilhauer, Hannes   +4 more
core   +2 more sources

Analysis of Vegetation Behavior in a North African Semi-Arid Region, Using SPOT-VEGETATION NDVI Data

open access: yesRemote Sensing, 2011
The analysis of vegetation dynamics is essential in semi-arid regions, in particular because of the frequent occurrence of long periods of drought. In this paper, multi-temporal series of the Normalized Difference of Vegetation Index (NDVI), derived from
Abdelghani Chehbouni   +5 more
doaj   +1 more source

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