نتایج جستجو برای: soil adjusted vegetation index savi

تعداد نتایج: 692864  

ژورنال: علوم آب و خاک 2004
سیدجمال الدین‌خواجه‌الدین, , احمد جلالیان, , ندا زاهدی‌فرد, ,

Satellite data use is finding global applications because they provide repeated cover, broad information, high electromagnetic spectral resolution, and software-hardware compatibilities. This study aims to evaluate of the Landsat TM data capabilities in land-use mapping of Bazoft River basin (Chahar Mahale Bakhtiary Province). Six spectral bands of the Landsate TM were employed to produce land-...

سیدجمال الدین‌خواجه‌الدین, , احمد جلالیان, , ندا زاهدی‌فرد, ,

Satellite data use is finding global applications because they provide repeated cover, broad information, high electromagnetic spectral resolution, and software-hardware compatibilities. This study aims to evaluate of the Landsat TM data capabilities in land-use mapping of Bazoft River basin (Chahar Mahale Bakhtiary Province). Six spectral bands of the Landsate TM were employed to produce land-...

The degradation rate of Mediterranean steppes, especially in North Africa is 1% per year, and this considered a high  rate of degradation. This study conducted in 2014 in the south slope of the Al-Jabal Al-Akhdar, northeast Libya to quantify the vegetation recovery rate and assess selected Vegetation Indices (VIs) for mapping rangelands degradation status using remote sensing technology. Throug...

Journal: :Applied sciences 2021

Forest fires are severe disasters that cause significant damage in the Republic of Korea and entire world, an effort is being made to prevent forest internationally. The budgets 3.38 million USD every year fires. However, average 430 wildfires occur nationwide annually. Thirty-eight percent fire budget used for restoration. Restoring afforestation affected areas a top priority. This study aimed...

1998
Rick L. Lawrence William J. Ripple

Spectral vegetation indices have been used extensively INTRODUCTION to predict ecological variables, such as percent vegetation On 18 May 1980, Mount St. Helens in the State of cover, above-ground biomass, and leaf-area index. We exWashington erupted with catastrophic, landscape-scale amined the use of various vegetation indices and multiple effects (Lipman and Mullineaux, 1981). In a mere 10 l...

2003
M. Middleton E. Hyvönen T. Helminen J. Laitinen V. Kuosmanen M-L. Räisänen M. Timonen R. Sutinen

Hyperspectral (450-2500 nm) airborne HyMap imaging spectrometer data (spatial resolution 5 m) were processed for mapping of environmental effects on vegetation due to talc mining activities at Lahnaslampi, Sotkamo, Finland. As a part of the european MINEO project, the HyMap imagery was interpreted by applying vegetation indices, using standard classification and hyperspectral mapping approaches...

2017
Ignacio García-Estévez Natalia Quijada-Morín Julián C Rivas-Gonzalo José Martínez-Fernández Nilda Sánchez Carlos M Herrero-Jiménez M Teresa Escribano-Bailón

BACKGROUND The phenolic composition of grapes is key when making decisions about harvest date and ensuring the quality of grapes. The present study aimed to investigate the relationship between the detailed phenolic composition of grapes and the agronomic parameters and hyperspectral indices, with the latter being measured via field radiometry techniques. RESULTS Good correlations were found ...

Journal: :Remote Sensing 2022

In recent decades there has been an increasing use of remotely sensed data for precision agricultural purposes. Sericulture, the activity rearing silkworm (Bombyx mori L.) larvae to produce silk in form cocoons, is practice that rarely used remote sensing techniques but could benefit from them. The aim this work was investigate possibility using satellite imaging order monitor leaf harvesting m...

Journal: :Remote Sensing 2023

Reasonable allocation of urban resources can effectively control changes in ecological quality. This study used Sentinel-2 images, taking functional areas as the dividing scale, and combined spatial analysis, statistics, other relevant methods to explore factors influencing remote sensing quality Puxi, Shanghai, China. Landsat-8 high-resolution data fusion achieved more refined index (RSEI) dis...

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