Results 51 to 60 of about 25,560 (168)

Monitoring surface water pollution in Algeria using database indices

open access: yesSoil and Water Research
This study investigated how remote sensing techniques can pinpoint pollution in surface water areas. Researchers focused on the municipalities of Boumerdes, Corso, and Tidjalabine in Algeria's Boumerdes province.
Ouahiba Bouchama, Lounes Amar
doaj   +1 more source

Relación Entre el Índice de Área Foliar y el Índice Normalizado de Vegetación en el Bosque Húmedo Tropical de Panamá en Gamboa

open access: yesRevista de I + D Tecnológico, 2014
El índice de área foliar (LAI) es una variable útil para describir la productividad y dinámica de los ecosistemas forestales además de un indicador de la salud y desarrollo del dosel. Se han realizado pocos estudios de esta variable en regiones de bosque
Dafni Mora   +2 more
doaj  

Analysis of the intensity of erosive processes and state of vegetation cover in the zone of influence of the Kolubara Mining Basin

open access: yesOpen Geosciences
Ensuring the quality protection of geospatial elements entails environmental control, a task unattainable without precise measurement results. This article aims to conduct a spatio-temporal analysis of soil degradation and vegetation status within the ...
Živanović Milica   +6 more
doaj   +1 more source

Utilization of NDVI, VTCI and WDI indices in analyzing the effects of drought severity and duration on vegetation density in Siminehrood catchment [PDF]

open access: yesتحقیقات کاربردی علوم جغرافیایی, 2020
Various satellite remote sensing data, images and products have proven their place in drought, drought and agriculture studies since the production of this type of information resource.
Parviz zeaiean Firoozabadi
doaj  

Determination of Vegetation Changes with Ndvi Method

open access: yes, 2015
Remote sensing and geographical information system methods are used frequently in field use, planning and determination of land changes. The data types used in this study vary according to the objective of the study. In this study, the Landsat TM satellite patterns of 1987, 2002 and 2012 years were classified according to NDVI and the changes in the ...
Ozyavuz, M., Bilgili, B.C., Salici, A.
openaire   +3 more sources

تخمین عملکرد گندم آبی بوسیله تصاویر ماهواره لندست در برخی از مزارع شهرستان مشهد [PDF]

open access: yesPizhūhish/hā-yi tulīd-i giyāhī, 2014
یکی از روشهایی که اخیرا در کشور بمنظور پایش محصولات کشاورزی مورد استفاده قرار می¬گیرد، استفاده از تصاویر ماهواره¬ای می¬باشد. با هدف تخمین عملکرد مزارع گندم بوسیله تصاویر ماهواره لندست سنجنده TM و ETM+، 13 مزرعه گندم در دو سال 1388 و 1389 در شهرستان مشهد ...
نسرین صالح نیا   +4 more
doaj  

Optimizing Weed Control: A Study on the Influence of Drone Sprayer Altitude in Herbicide Application

open access: yesJurnal Keteknikan Pertanian Tropis dan Biosistem
This research aims to determine the spraying distance of herbicides using a drone sprayer to achieve effective weed control. The use of herbicides is crucial to managing the competition for plant nutrients that threaten crop yields.
Teuku Musrian   +2 more
doaj   +1 more source

Comparison of Handheld NDVI Sensor Measurements and Drone Sensing NDVI in Potato Fields.

open access: yesJapanese Journal of Farm Work Research, 2023
Noriko DEGUCHI   +2 more
openaire   +1 more source

Assessment of agricultural drought in Iraq employing Landsat and MODIS imagery

open access: yesOpen Engineering
Climate change poses an urgent global challenge in water resource management, with drought emerging as a pervasive threat worldwide. Over the past two decades, Iraq has faced severe droughts, categorized into meteorological, agricultural, hydrological ...
Hatem Israa   +3 more
doaj   +1 more source

The Importance of the Normalized Difference Vegetation Index (NDVI) and the Use of the ArcGIS to create NDVI Maps

open access: yesمجلة العلوم والدراسات الإنسانية - كلية الآداب والعلوم – المرج
This paper studies the Normalized Difference Vegetation Index (NDVI); the creation of the NDVI maps, how these maps are work, and how to create them using ArcMap. These maps sort the vegetation into low and high up to the NDVI values (±0.1). It measures greenness, vegetation health, predicts agricultural productivity, and map desertification; it is an ...
openaire   +1 more source

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