Results 11 to 20 of about 11,447,905 (255)

Drought monitoring of forest vegetation using MODIS-based normalized difference drought index in Hungary [PDF]

open access: yesHungarian Geographical Bulletin, 2018
In this paper, several spectral indices based on spectral reflectance data from the Terra satellite’s Moderate Resolution Imaging Spectro-radiometer (MODIS) sensor were evaluated in terms of their practical applicability for quantifying drought intensity
András Gulácsi, Ferenc Kovács
doaj   +2 more sources

Application of Remote Sensing on El Niño Extreme Effect in Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) [PDF]

open access: yes, 2021
The years 1997/1998 and 2015/2016 saw the worst El Niño occurrence in human history. The occurrence of El Niño causes extreme temperature events which are higher than usual, drought and prolonged drought.
Oliver Valentine Eboy   +1 more
core   +1 more source

Comparative Analysis of Normalized Difference Water Index (NDWI) Methods in Continental Wetland [PDF]

open access: yesAnuário do Instituto de Geociências, 2018
The remote sensing data, like radiometric indices, represent alternative data generation sources that can help us understand the natural processes that occur in the Pantanal.
Luciana Escalante Pereira   +3 more
doaj   +1 more source

Temperatura de la superficie terrestre en diferentes tipos de cobertura de la región andina colombiana / Land surface temperature in different land covers of the Andean Region of Colombia [PDF]

open access: yesSociedade & Natureza, 2014
This study assessed the relationship of Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) with land surface temperature (LST), using Landsat images of La Vieja river watershed, in the Andean region of Colombia. We
Andrés Felipe Carvajal   +1 more
doaj   +1 more source

Analysis of Burning Area from Forest Fire using Sentinel-2 image: A Case Study of Pai, Mae Hong Son Province

open access: yesวารสารวิทยาการสารสนเทศและเทคโนโลยีประยุกต์, 2021
Forest fires are considered as a catastrophe that can cause great damage widely, some of which can occur spontaneously, or caused by human themselves, resulting in the air quality reduction.
Nawaphon Linta   +4 more
doaj   +1 more source

PEMETAAN DAERAH RAWAN BANJIR MENGGUNAKAN PENGINDERAAN JAUH DENGAN METODE NORMALIZED DIFFERENCE VEGETATION INDEX, NORMALIZED DIFFERENCE WATER INDEX DAN SIMPLE ADDITIVE WEIGHTING ( STUDI KASUS : KOTA BENGKULU ) [PDF]

open access: yes, 2020
Kota Bengkulu merupakan salah satu daerah yang terancam bencana banjir, dikarenakan kota Bengkulu berada pada elevasi antara 0 – 16 m dpl dengan 70% topografi datar dan 30 % berbukit kecil dan rawa.
HERNOZA, FRANKY   +2 more
core   +3 more sources

Performances Evaluation of Water Body Extraction Techniques Using Landsat ETM+ Data: Case- Study of Lake Nubia, Sudan [PDF]

open access: yesThe Egyptian International Journal of Engineering Sciences and Technology, 2016
Lake Nubia (LN) is the Sudanese portion of Aswan High Dam Lake (AHDL). Thispaper aims to detect the better technique for extraction of the water surface of LN.Eight techniques are tested using Landsat ETM+ image and their performances inextracting the ...
K Ali, A Negmb, M Elsahabi
doaj   +1 more source

Evaluation of Near Infrared Spectroscopy (NIRS) and Remote Sensing (RS) for Estimating Pasture Quality in Mediterranean Montado Ecosystem

open access: yesApplied Sciences, 2020
Pasture quality monitoring is a key element in the decision making process of a farm manager. Laboratory reference methods for assessing quality parameters such as crude protein (CP) or fibers (neutral detergent fiber: NDF) require collection and ...
João Serrano   +7 more
doaj   +1 more source

Evaluating spectral indices for water bodies extraction in western Tibetan Plateau

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
Waterbody extraction in the high-elevated region of the Tibetan Plateau from remote sensing imagery is an efficient way to investigate and monitor water resources.
Hafiza Wajiha Khalid   +2 more
doaj   +1 more source

Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan

open access: yesJournal of Water and Climate Change, 2022
This study focuses on the spatiotemporal analysis of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture from 2013 to 2022 in South Punjab, Pakistan.
Sana Arshad   +6 more
doaj   +1 more source

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