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Showing 1 to 20 of 107 for “"normalized difference vegetation index"”.

  1. Remote sensing, normalized difference vegetation index (NDVI), and crop yield forecasting

    Lv, XijieUniversity of Illinois at Urbana-Champaign2014

    … remotely sensed image and its derived products, Normalized Difference Vegetation Index (NDVI), to assess and quantify corn and soybean yield potential. Fixed-effect panel and ordinary least squares NDVI regression models were developed for different level of spatial aggregation. Through the …

    uiuc Repository record

  2. Relationship between satellite-derived Normalized Difference Vegetation Index (NDVI) and surface hydrology

    Pinheiro, Ana T. (Ana Torres), 1972-Massachusetts Institute of Technology1998

    Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.

    mit Repository record

  3. Influence of nitrogen rate on corn grain yield, nitrogen use efficiency, and nitrate leaching on coarse-textured Minnesota soils

    Rubin, John Carl2013

    … application. Nitrogen uptake, leaf chlorophyll, normalized difference vegetation index (NDVI), grain yield, grain N, nitrogen use efficiency (NUE), basal stalk nitrate (BSN), and residual soil nitrate-N (RSN) were evaluated with respect to N rate. Nitrate-N leaching was monitored with suction …

    umn Repository record

  4. Detection and attribution of drought and oil-induced plant stress using hyperspectral remote sensing

    Elujoba, Patrick AdetokunboUniversity of Dundee2018

    … remote sensing in detecting stress in vegetation caused by both drought stress and hydrocarbon contamination of the soil. Spectral and plant biochemical measurements were taken from an in-situ field experiment and a glasshouse experiment at the James Hutton Institute, Invergowrie, U.K. …

    dundee Repository record

  5. Predictive Modeling of Sugarbeet Quality Using Vegetative Index, Statistical, and Artificial Neural Network Methods

    Brandt, Kevin L.

    … (SMBSC) growing region.<br /> Vegetative index models used in this research consisted of the Normalized Difference Vegetation Index (NDVI), Green Normalized Difference Vegetation Index (GNDVI), and an index that is similar to the GNDVI, the Mid-infrared band 5 NDVI (M5NDVI). This index …

    sdstate Repository record

  6. Multispectral Remote Sensing of the Earth and Environment Using KHawk Unmanned Aircraft Systems

    Gowravaram, Saket NavalurUniversity of Kansas2017

    … (NIR) and colored infrared (CIR) maps. A robust Normalized Difference Vegetation index (NDVI) calibration procedure is proposed and validated by ground tests and KHawk flight test. Finally, the generated aerial maps and their corresponding Digital Elevation Models (DEMs) are used for typical …

    ku Repository record

  7. The Association Between Environmental Factors and the Risk of Paediatric Inflammatory Bowel Disease

    Elten, MichaelUniversité d'Ottawa / University of Ottawa2020

    … oxidant capacity) and greenspace (through the normalized difference vegetation index) were obtained based on residential six-digit postal code. Results: Exposure to oxidant capacity during childhood and mid-pregnancy was associated with increased risk of IBD <18 years. No association for other …

    ottawa-retro Repository record

  8. An Evaluation of Unmanned Aircraft Systems' Ability to Assess Stripe Rust in Large Wheat Breeding Nursies

    Murry, Jamison T.2021

    … and remotely using the dark green color index (DGCI), normalized difference vegetation index (NDVI) and blue NDVI. Significant relationships (p</p> <p>In a second study, the effect of plot size (single-row, two-row and four-row) on relationship between visual and remote sensing data (DGCI …

    arkansas Repository record

  9. Spectral Properties of Sugar Beet Canopy Related to Sugar Content and Quality of Beet Roots

    Xie, Biao

    … amino nitrates are statistically significant, to normalized difference vegetation index (NDVI) and spectral information from several individual bands. Using these results, a simple linear regression and multiple linear regression were performed to derive estimate models for sugar content and other …

    sdstate Repository record

  10. Phenotyping Canola (Brassica napus L.) Agronomic Traits and Estimating Seed Yield Using Unoccupied Aerial Vehicle (UAV)-based Multispectral Imagery

    Zhang, TiUniversity of Saskatchewan2022

    … In the flowering number estimation study, the normalized difference yellowness index (NDYI)-based pixels were significantly correlated with actual canola flower numbers with coefficient of determination (R2) ranging from 0.54 to 0.95 (p < 0.05). Moreover, seed yield could be estimated using …

    sask Repository record

  11. Mapping urban growth and investigating its potential impact on surface water quality in Chattanooga, Tennessee using GIS and remote sensing

    Hall, Jonah2020

    … A model was developed utilizing the Normalized Difference Vegetation Index (NDVI) and a supervised image classification algorithm to detect IS growth. The changes in IS were quantified at watershed level scale including stream riparian areas. The obtained results show a net growth of …

    utc Repository record

  12. From grain to floodplain: evaluating heterogeneity of floodplain hydrostratigraphy using sedimentology, geophysics, and remote sensing

    Malenda, Helen FitzgeraldColorado School of Mines. Arthur Lakes Library2018

    … of former channels, LiDAR-based elevation and Normalized Difference Vegetation Index data to infer 3-D fluvial stratigraphy. We compare and contrast stratigraphy of two meanders with disparate geometries to explore floodplain heterogeneity and connectivity controls on flow and transport. We …

    colo-mines Repository record

  13. Examining the Influence of Environmental Opportunities and Exposures on Children's Sleep Duration

    McIntosh, Leanne BThe University of Western Ontario2014

    … average sleep duration when measured by Normalized Difference Vegetation Index. Additionally, with each percent increase in amount of time spent around park spaces each day, children’s sleep duration increased by 13 minutes. From these findings, policy makers, educators, and parents can …

    uwo Repository record

  14. Examining Land Use/Land Cover Change and Potential Causal Factors in the Context of Climate Change in Sagarmatha National Park, Nepal

    Humagain, Kamal

    … Mapper (TM) images since 1972 were used. Normalized Difference Vegetation Index (NDVI) was calculated for different elevation classes and land cover types. These measurements, along with land cover change (1992- 2006) analysis, shows a significant conversion of the areas covered by ice, …

    wku-diss Repository record

  15. The Use of Remote Sensing to Map and Monitor Coastal Dune Vegetation Change at Southampton, Ontario, Canada

    Hague, BrodieBrock University2016

    … complex provides habitat for a diverse range of vegetation species, some of which are endemic, rare, and threatened. This research mapped and monitored dune vegetation change at the Chantry Dune system from 2005-2012 using multi-temporal normalized difference vegetation index (NDVI) images …

    brock Repository record

  16. Identifying Forest Conversion Hotspots in the Commonwealth of Virginia using Multitemporal Landsat Data and Known Change Indicators

    House, Matthew NealVirginia Tech2017

    … study examines the effectiveness of using the Normalized Difference Vegetation Index (NDVI) derived from 1326 different Landsat Thematic Mapper and Enhanced Thematic Mapper images in finding isolated housing starts within the Commonwealth of Virginia's forests. Individual NDVI images were …

    vt Repository record

  17. Multispectral canopy reflectance and digital imaging to determine maturity

    Davis, Brandon R.University of Missouri--Columbia2017

    … 5 – planted at two or three planting dates (PD). Normalized difference vegetation index (NDVI), normalized difference red edge (NDRE), dark green color index (DGCI), percent canopy cover, and developmental stage were assessed every 7-10 days. Canopy cover and NDVI reached maximum values relatively …

    missouri Repository record

  18. Multispectral Imaging Techniques for Monitoring Vegetative Growth and Health

    Weekley, Jonathan GardnerVirginia Tech2007

    … increases dramatically around 700 nm for vegetation. This increase in reflectance is known as the vegetation red edge. The NDVI (Normalized Difference Vegetation index) is an imaging technique for quantifying red edge contrast for the identification of vegetation. This imaging technique …

    vt Repository record

  19. A Phenological Comparison of NDVI Products within Contiguous United States

    Chai, JiaxunVirginia Tech2011

    This study computed the Normalized Difference Vegetation Index (NDVI) products derived from NOAA AVHRR, MODIS, and SPOT VGT sensors. NDVI products from different instruments vary in spatial resolution, temporal coverage and spectral range. As a result, multi-sensor NDVI products are rarely used in …

    vt Repository record

  20. Eastern Deciduous Forest Phenology and Vegetative Vigor Trends From 2000 to 2013, Mammoth Cave National Park, KY

    Hutchison, Sean Taylor

    … for forests in central Kentucky. Using a Normalized Difference Vegetation Index (NDVI) calculated from MODerate-Resolution Imaging Spectroradiometer (MODIS) instrument data, the photosynthetic activity of vegetation at Mammoth Cave National Park (MACA) is tracked from 2000 to 2013. Three …

    wku-diss Repository record

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