Relevant bibliographies by topics / Vegetation ratio

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Vegetation ratio'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Vegetation ratio"

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Bancsi, Maurice J. L. M. F., Marcel H. A. M. Veltrop, Rogier M. Bertina, and Jan Thompson. "Role of Monocytes and Bacteria inStaphylococcus epidermidis Endocarditis." Infection and Immunity 66, no. 2 (1998): 448–50. http://dx.doi.org/10.1128/iai.66.2.448-450.1998.

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ABSTRACT The endocardial vegetation which is formed in the course of bacterial endocarditis (BE) contains tissue factor (TF)-dependent procoagulant activity. Earlier studies showed that monocytes are the main source of TF in the vegetations. The TF activity (TFA) of vegetations isolated from Streptococcus sanguis-infected rabbits depended on the numbers of bacteria as well as monocytes in the vegetation. In this study, we investigated whether forStaphylococcus epidermidis, a frequent pathogen in BE, an effect similar to that found for S. sanguis could be shown. In vitro, S. epidermidis was fou
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Maxwald, Melanie, Markus Immitzer, Hans Peter Rauch, and Federico Preti. "Analyzing Fire Severity and Post-Fire Vegetation Recovery in the Temperate Andes Using Earth Observation Data." Fire 5, no. 6 (2022): 211. http://dx.doi.org/10.3390/fire5060211.

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In wildfire areas, earth observation data is used for the development of fire-severity maps or vegetation recovery to select post-fire measures for erosion control and revegetation. Appropriate vegetation indices for post-fire monitoring vary with vegetation type and climate zone. This study aimed to select the best vegetation indices for post-fire vegetation monitoring using remote sensing and classification methods for the temperate zone in southern Ecuador, as well as to analyze the vegetation’s development in different fire severity classes after a wildfire in September 2019. Random forest
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DUBEY, R. C., S. D. GAIKWAD, V. S. NAWATHE, R. G. DEKHANE, and S. N. BIDYANTA. "Spectral radiance characteristics and vegetative indices of crops -A ground based remote sensing technique." MAUSAM 46, no. 1 (2022): 75–80. http://dx.doi.org/10.54302/mausam.v46i1.3186.

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The spectral radiance characteristics and vegetation indices like simple difference, ratio vegetation, normalised vegetation perpendicular vegetation transformed vegetation and tasseled cap transformation of mung been sunflower and groundnut crops at different growth stages have been studied. The experiment was conducted in post rainy season during 1990-91 in the farm of Agricultural College. Pune using hand held multi-spectral radiometer. The significance of spectral variation of radiance and vegetative indices with respect to the phenological stages are discussed.
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Hu, Hongchang, Lajiao Chen, Hui Liu, et al. "Comparison of the Vegetation Effect on ET Partitioning Based on Eddy Covariance Method at Five Different Sites of Northern China." Remote Sensing 10, no. 11 (2018): 1755. http://dx.doi.org/10.3390/rs10111755.

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Vegetation exerts profound influences on evapotranspiration (ET) partitioning. Many studies have demonstrated the positive impact of vegetation cover on the ratio of transpiration (T) to ET. Whether it is universally true with regard to different vegetation types and different sites is understudied. In this study, five sites in Northern China with different vegetation types were selected for comparison study.ET partitioning is conducted using an approach based on the concept of the underlying water use efficiency with eddy covariance measurements. The results show various patterns of vegetatio
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Wang, Lin, Tian Chen, Yang Yu, et al. "Impacts of Vegetation Ratio, Street Orientation, and Aspect Ratio on Thermal Comfort and Building Carbon Emissions in Cold Zones: A Case Study of Tianjin." Land 13, no. 8 (2024): 1275. http://dx.doi.org/10.3390/land13081275.

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This research highlights that street layouts, including the vegetation ratio, street orientation, and aspect ratio, are key in diminishing urban heat islands (UHIs), building energy use, and carbon emissions. The optimal street layout for minimal building energy consumption, carbon emissions, and maximal outdoor thermal comfort in Tianjin was established via field measurements, ENVI-met 5.6.1, Energy Plus simulations, and correlation analysis. The findings indicate the following: (1) The carbon emissions of winter residential heating energy consumption are 2.9–3.2 times higher than those for s
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HONJO, Tsuyoshi, and Tadashi TAKAKURA. "Estimation of Vegetation Cover Ratio in Urban Area by Using Vegetation Index." Journal of the Japanese Institute of Landscape Architects 52, no. 5 (1988): 283–87. http://dx.doi.org/10.5632/jila1934.52.5_283.

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Mercier, G., L. Hubert-Moy, T. Houet, and P. Gouery. "Estimation and monitoring of bare soil/vegetation ratio with SPOT VEGETATION and HRVIR." IEEE Transactions on Geoscience and Remote Sensing 43, no. 2 (2005): 348–54. http://dx.doi.org/10.1109/tgrs.2004.841628.

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Lee, Bae Hun, Ji Yung Kim, Hyung Soo Park, Kyung Il Sung, and Byong Wan Kim. "Evaluation of Grassland Grade by Grassland Vegetation Ratio." Journal of The Korean Society of Grassland and Forage Science 40, no. 1 (2020): 29–36. http://dx.doi.org/10.5333/kgfs.2020.40.1.29.

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MAJOR, D. J., F. BARET, and G. GUYOT. "A ratio vegetation index adjusted for soil brightness." International Journal of Remote Sensing 11, no. 5 (1990): 727–40. http://dx.doi.org/10.1080/01431169008955053.

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Yang, Bing, Xinzhi Zhang, Weitong Li, Siyuan Sun, and Jinjun Yi. "Palynological Record of the Aalenian–Bajocian Cooling Event from the Santanghu Basin, Northwest China." Diversity 16, no. 7 (2024): 369. http://dx.doi.org/10.3390/d16070369.

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The Aalenian–Bajocian (early Middle Jurassic) cooling event (ABCE) was a significant global climate disturbance during the Jurassic. Our analysis of sporopollen fossils from 18 mudstone and silty mudstone samples, collected from the lacustrine-terrestrial succession Xishanyao Formation in the Santanghu Basin, Northwest China, revealed a total of 191 species belonging to 53 genera. We identified an assemblage, the Cyathidites–Deltoidospora–Osmundacidites–Cycadopites assemblage, which dates to the Aalenian–Bajocian (early Middle Jurassic). This assemblage can be further divided into three subass
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Dissertations / Theses on the topic "Vegetation ratio"

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Bolinius, Damien Johann. "Methods to measure mass transfer kinetics, partition ratios and atmospheric fluxes of organic chemicals in forest systems." Doctoral thesis, Stockholms universitet, Institutionen för miljövetenskap och analytisk kemi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-136008.

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Vegetation plays an important role in the partitioning, transport and fate of hydrophobic organic contaminants (HOCs) in the environment. This thesis aimed at addressing two key knowledge gaps in our understanding of how plants exchange HOCs with the atmosphere: (1) To improve our understanding of the uptake of HOCs into, and transfer through, leaves of different plant species which can significantly influence the transport and fate of HOCs in the environment; and (2) To evaluate an experimental approach to measure fluxes of HOCs in the field. The methods presented in papers I, II and III cont
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Chatterjee, Sumantra. "ESTIMATING EVAPOTRANSPIRATION USING REMOTE SENSING: A HYBRID APPROACH BETWEEN MODIS DERIVED ENHANCED VEGETATION INDEX, BOWEN RATIO SYSTEM, AND GROUND BASED MICRO-METEOROLOGICAL DATA." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1271602329.

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Ihala, Gallangage Gedara Maheshwara Arunakantha Prasad. "Hydrodynamics of open channel flow with partially occupied continuous double layered vegetation." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2024. https://ro.ecu.edu.au/theses/2930.

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This doctoral thesis investigates the hydrodynamics of open channel flows interacting with double-layered vegetation, focusing on two configurations—uniform (A1) and mixed (A2)—that mimic river riparian growth. The study utilizes Laser Doppler Velocimetry (LDV) and Particle Image Velocimetry (PIV) to quantify critical flow characteristics, including streamwise and transverse velocities, Reynolds shear stress, turbulence, and vortex dynamics under conditions where vegetation occupies single and both banks. The dynamic effects of channel transitions from wide to narrow are studied utilizing aspe
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Karki, Hemanta D. "Investigation of flow characteristics in an open channel with one-line semicircular vegetation patches." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2595.

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Experiments are conducted in an open channel with semi-circular patches distributed on one sidewall of the channel in which velocity distribution, turbulent intensity, and vortex generation are analyzed. The resistance force offered by a vegetation patch causes the change in water depth which have a broader application in river management, bank stabilization, and flood control. The measurement is conducted in the laboratory with the help of different measuring devices like Laser doppler velocimeter, particle image velocimeter, measuring scale, and so on. From the experiment, the velocity distr
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Upadhaya, Suraj. "Use of Landsat Data to Characterize Burn Severity, Forest Structure and Invasion by Paulownia (Paulownia Tomentosa) in an Eastern Deciduous Forest, Kentucky." UKnowledge, 2015. http://uknowledge.uky.edu/forestry_etds/23.

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Landsat imagery has been used successfully to assess burn severity and monitor post-fire forest structure in a variety of ecosystems, but to date there are few documented studies on its application in the eastern deciduous forests of the eastern United States. The occurrence of a wildfire in the Daniel Boone National Forest in2010 provided a rare opportunity for research into the use of Landsat data for assessing burn severity and its ecological effects. We used differenced normalized burn ratio (∆NBR) to quantify burn severity. The ∆NBR based burn severity classification had 70% agreement wit
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Євдаков, Віктор Петрович. "Взаємодія генів, що детермінують ознаки листків та плоду томату". Магістерська робота, ЗНУ, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/1397.

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Євдаков В. П. Взаємодія генів, що детермінують ознаки листків та плоду томату : кваліфікаційна робота магістра спеціальності 091 "Біологія" освітньої програми "Генетика" / наук. керівник В. О. Лях. Запоріжжя : ЗНУ, 2020. 82 с.<br>UA : Дана робота викладена на 82 сторінках друкованого тексту, містить 8 таблиць та 5 рисунків. Перелік посилань включає 64 джерела. Томат є однією з найбільш поширених овочевих культур і вирощується як у відкритому так і в захищеному грунті, оскільки володіє високою врожайністю, пластичністю і коротким вегетаційним періодом. Об’єктом дослідження були сорти томату
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Garris, Heath William. "Restructuring of Wetland Communities in Response to a Changing Climate at Multiple Spatial and Taxonomic Scales." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1383312022.

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Roberson, Travis Leon. "Improving Soil Moisture Assessment of Turfgrass Systems Utilizing Field Radiometry." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/87391.

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The need for water conservation continues to increase as global freshwater resources dwindle. In response, many golf course superintendents are implementing new methods and tools to become more frugal with their water applications. For example, scheduling irrigation using time-domain reflectometer (TDR) soil moisture sensors can decrease water usage. Still, TDR measurements are time-consuming and only cover small scales, leading to many locations being unsampled. Remotely sensed data such as the normalized difference vegetation index (NDVI) offer the potential of estimating moisture stress acr
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MATOS, LENI JOAQUIM DE. "INFLUENCE OF VEGETATION ON DISPERSION OF MOBILE RADIO SIGNALS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7586@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>A influência da vegetação na dispersão dos sinais rádio- móveis é caracterizada através dos parâmetros de dispersão no tempo como o retardo médio, o espalha-mento de retardo e a banda de coerência, e dos parâmetros de dispersão na freqüência como o Doppler médio, o espalhamento Doppler e o tempo de coerência. Através do desenvolvimento e implementação de uma técnica de sondagem em faixa larga apropriada, medições foram realizadas em dois ambientes, das quais os parâmetros desejados puderam ser extraídos, por processamento. De posse de
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Fernandes, Telmo Rui C. C. "A discrete RET model for micro- and millimetre wave propagation through vegetation." Thesis, University of South Wales, 2007. https://pure.southwales.ac.uk/en/studentthesis/a-discrete-ret-model-for-micro-and-millimetre-wave-propagation-through-vegetation(0989dc1c-4bba-4653-b0aa-4d684f82033c).html.

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The overall growth in cellular, fixed and satellite communications markets, has exceeded many expectations and there is a widespread anticipation that the demand for wireless telecommunication systems will continue to expand in the foreseeable future. Such systems rely in their planning, design and implementation on the availability of radiowave propagation models. In the particular case of land mobile radio systems and wireless fixed access systems, obstacles in the form of vegetation volumes, e.g formations of trees, are likely to influence radio propagation, giving rise to absorption and sc
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Books on the topic "Vegetation ratio"

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Jones, David L. Vegetation loss measurements at 9.6, 28.8, 57.6, and 96.1 GHz through a conifer orchard in Washington State. U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1989.

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Stephens, Richard B. L. A study and modelling of the propagation effects of vegetation on radio waves at centimetre-wavelength frequencies. 1998.

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Book chapters on the topic "Vegetation ratio"

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Wang, Fumin, and Jingfeng Huang. "Narrow Band Ratio Vegetation Indices and Itsrelationships With Rice Agronomic Variables." In Computer and Computing Technologies in Agriculture II, Volume 3. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0213-9_70.

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Sabokrouhiyeh, Nima, Andrea Bottacin-Busolin, Heidi Nepf, and Andrea Marion. "Effects of Vegetation Density and Wetland Aspect Ratio Variation on Hydraulic Efficiency of Wetlands." In Hydrodynamic and Mass Transport at Freshwater Aquatic Interfaces. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27750-9_9.

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Chen, Hao, Fengchi Wang, Gang Xu, and Lilong Guo. "Laboratory Model Test of Eco-Concrete Slab Slope Protection." In Lecture Notes in Civil Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_33.

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AbstractIn order to study the protective effects of eco-concrete slope and the influencing factors of eco-concrete slope deformation. The displacement characteristics and ultimate bearing capacity of the slope model under different geometric parameters are obtained through the laboratory model test of eco-concrete slope protection, and the influence laws of slope deformation under different protection slope conditions are summarized, as well as the influence laws of soil compaction, soil moisture content and slope ratio on the horizontal displacement restraint capacity and stability of the slo
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Baade, Jussi, Ilse Aucamp, Anneliza Collett, et al. "Soil Erosion Research and Soil Conservation Policy in South Africa." In Sustainability of Southern African Ecosystems under Global Change. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-10948-5_13.

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AbstractSoil erosion has been identified as an issue in South African farming for more than a century. Erosion of land surfaces by water or wind is a natural process which might be accelerated directly by human impact on land surface properties, e.g., vegetation and soils. An assessment of soil erosion risk indicates average soil loss rates two orders of magnitude larger than long-term soil formation rates. This challenging condition clearly underlines the need for continuous application of established policies and principles as well as emerging modes of conservation agriculture in farming act
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Tiwari, Binod, and Beena Ajmera. "Advancements in Shear Strength Interpretation, Testing, and Use for Landslide Analysis." In Progress in Landslide Research and Technology. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-44296-4_1.

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AbstractLandslides are devastating natural disasters that result in loss of life, property damage, and community disruption. They have global impacts, causing fatalities and economic losses, particularly in mountainous regions near densely populated areas. Landslides can be caused by natural factors, including water saturation from heavy rainfall, snowmelt, and changes in groundwater levels, as well as seismic activity such as earthquakes and volcanic eruptions. Human activities, such as altering drainage patterns, destabilizing slopes, and removing vegetation, also contribute to landslides. C
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Ellenbroek, G. A. "Belowground vegetation and root/shoot ratios." In Ecology and productivity of an African wetland system. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4051-2_7.

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Still, Christopher J., and Rebecca L. Powell. "Continental-Scale Distributions of Vegetation Stable Carbon Isotope Ratios." In Isoscapes. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-3354-3_9.

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Yueyang, Wang, and Philip F. Yuan. "A Parametric Approach Towards Carbon Net Zero in Agricultural Planning." In Computational Design and Robotic Fabrication. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_26.

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AbstractThis paper presents a new tool called the Space Data Generator, which is a parametric tool for organizing open spaces in rural areas. It can optimize the layout of buildings, solar panels, and agricultural planting spaces. While architects have been exploring ways to achieve net-zero carbon emissions in building design, it is equally important to attain a feasible carbon-neutral goal in rural areas. This is particularly crucial as 40% of the world's population resides in rural areas, and transitioning towards a more sustainable and efficient economy can bring about not only moral but a
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Kumar, Sachin, T. Senthil Siva Subramanian, Kapil Sharma, and G. V. Ramesh Babu. "Artificial intelligence-driven radio channel capacity in 5G and 6G wireless communication systems in the presence of vegetation." In Smart Embedded Systems. CRC Press, 2023. http://dx.doi.org/10.1201/9781032628059-7.

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Koutsias, Nikos, Iliana Kalogeropoulou, Anastasia Karamitsou, Nikoletta G. Mili, and Magdalini Pleniou. "A rule-based semi-automatic method to map burned areas using Landsat and Sentinel-2 images – incorporating vegetation indices into the mapping algorithm." In Advances in Forest Fire Research 2022. Imprensa da Universidade de Coimbra, 2022. http://dx.doi.org/10.14195/978-989-26-2298-9_7.

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At local or regional scales, where Landsat has been extensively applied to monitor burned areas, semi- or fully-automated methods are not very common. Koutsias et al. (2013) developed and improved (2021) a semi-automatic method to map burned areas consisted of a set of rules that are valid especially when the post-fire image has been captured shortly after the fire. However, the rule-based approach is not free of errors that eventually create limitations to adopt this method for reconstructing the fire history in a fully automated mode. In this work, we improved the method by incorporating veg
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Conference papers on the topic "Vegetation ratio"

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Sharma, Avinash. "Coherent Backscatter from a Vegetation Canopy - Model vs Experiment." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10907061.

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Ghosh, Abesh, and Mehmet Kurum. "A GNSS-T and LiDAR Fusion Approach to Generate Large Scale Vegetation Optical Depth Map." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10906815.

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Zhou, Y., M. Schwank, M. Kurum, and R. Lang. "Modelling the Effective Vegetation Optical Depth and Scattering Albedo for Coniferous Forests from P- to Ka- Band." In 2025 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM). IEEE, 2025. https://doi.org/10.23919/usnc-ursinrsm66067.2025.10907231.

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ra Ozbay, Bus, Yunus Emre Esin, and Furkan Cengel. "Specific band ratio for vegetation indices calculation in hyperspectral images." In 2015 7th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). IEEE, 2015. http://dx.doi.org/10.1109/whispers.2015.8075383.

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Chigodaykina, D. S., and A. S. Revushkin. "Taxonomy and geography of wormwoods (Artemisia L.) in Southern Siberia." In Problems of studying the vegetation cover of Siberia. TSU Press, 2020. http://dx.doi.org/10.17223/978-5-94621-927-3-2020-44.

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The data on the species composition and geographical distribution of species of the genus Artemisia L. in the territory of Southern Siberia are presented. During the study of the literature and critical revision of herbarium specimens on the territory of Southern Siberia, 78 species of wormwood were identified belonging to 3 subgenera (Artemisia, Dracunculus Bess., Seriphidium (Besser ex Less.) Fourr) in 7 sections and 20 subsections. A comparative analysis of the species composition of Southern Siberia, as well as the ratio of the belt-zonal and chorological structure, revealed the features o
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Chang, Jisung, and Maxim Shoshany. "Red-edge ratio Normalized Vegetation Index for remote estimation of green biomass." In IGARSS 2016 - 2016 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2016. http://dx.doi.org/10.1109/igarss.2016.7729340.

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Li, S., R. Akbar, T. Zhao, et al. "Decomposition of SMAP polarization ratio into surface soil moisture and vegetation dynamics." In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE, 2017. http://dx.doi.org/10.1109/igarss.2017.8127910.

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Wang, Mingyang, and Na Li. "Effects of Vegetation Roughness Ratio on the Spanwise Distribution of Suspended Load." In 40th IAHR World Congress - "Rivers � Connecting Mountains and Coasts". The International Association for Hydro-Environment Engineering and Research (IAHR), 2013. http://dx.doi.org/10.3850/978-90-833476-1-5_iahr40wc-p0621-cd.

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Sivertson, W. E. "Radiance Ratio Classification of Earth Surface Features—A Spaceborne Shuttle Experiment." In Laser and Optical Remote Sensing: Instrumentation and Techniques. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/lors.1987.tuc15.

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New spaceborne technology is being developed for autonomously detecting and classifying four primary Earth features—water, vegetation, and bare land, and a cloud-snow-ice class. Using this technology, a space-based remote imaging system could provide automatic pretransmission screening and selection of remotely sensed information. Classification is based on camera output radiance ratio values. The hardware is relatively small and could be operated in concert with other spaceborne sensors to remotely monitor Earth resources. This paper discusses the technology concept and spaceborne Shuttle tes
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Mazurkin, Peter. "COMPARISON OF SUBJECTS OF THE URAL FEDERAL DISTRICT BY THE SHARE OF VEGETABLE COVER." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b1/v3/36.

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The ecological consolidation of vegetation according to three classes of the UN soil cover (grass + shrub + trees) is considered. The ecological coefficient is calculated by dividing the share of vegetation by the share of changed land. For the rating, the forest-agricultural coefficient is convenient as the ratio of forest area to arable land. The ecological principle of the consolidation of 13 types of land is proposed, which makes it possible to carry out the ecological consolidation of the vegetation cover and altered human land. According to these proposed criteria, the ranking of the sub
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Reports on the topic "Vegetation ratio"

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Chen, J. M. Evaluation of vegetation indices and a Modified Simple Ratio for boreal applications. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/218303.

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Ziegler, Nancy, Nicholas Webb, John Gillies, et al. Plant phenology drives seasonal changes in shear stress partitioning in a semi-arid rangeland. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47680.

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Accurate representation of surface roughness in predictive models of aeolian sediment transport and dust emission is required for model accuracy. While past studies have examined roughness effects on drag partitioning, the spatial and temporal variability of surface shear velocity and the shear stress ratio remain poorly described. Here, we use a four-month dataset of total shear velocity (u*) and soil surface shear velocity (us*) measurements to examine the spatiotemporal variability of the shear stress ratio (R) before, during, and after vegetation green-up at a honey mesquite (Prosopis glan
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Manninen, Terhikki, and Pauline Stenberg. Influence of forest floor vegetation on the total forest reflectance and its implications for LAI estimation using vegetation indices. Finnish Meteorological Institute, 2021. http://dx.doi.org/10.35614/isbn.9789523361379.

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Recently a simple analytic canopy bidirectional reflectance factor (BRF) model based on the spectral invariants theory was presented. The model takes into account that the recollision probability in the forest canopy is different for the first scattering than the later ones. Here this model is extended to include the forest floor contribution to the total forest BRF. The effect of the understory vegetation on the total forest BRF as well as on the simple ratio (SR) and the normalized difference (NDVI) vegetation indices is demonstrated for typical cases of boreal forest. The relative contribut
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Fernandes, R., M. Maloley, and F. Canisius. Relationship between leaf area index and Landsat Operational Land Imager equivalent reduced simple ratio vegetation index for the Athabasca oil sands region, northern Alberta. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308333.

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Bennett, K., J. Biggs, and P. R. Fresquez. Determination of locational error associated with global positioning system (GPS) radio collars in relation to vegetation and topography in north-central New Mexico. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/468550.

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Clulow, F. V., T. P. Lim, and N. K. Dave. Radionuclide levels and 226Ra concentration ratios between water, vegetation, and tissues of ruffed grouse (Bonasa umbellus) from a watershed with U tailings near Elliot Lake, Canada. Natural Resources Canada/CMSS/Information Management, 1989. http://dx.doi.org/10.4095/331773.

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Radionuclide levels measured in bone, muscle, kidney, and liver tissues, gut contents, and diet items of 47 grouse from the Serpent River drainage basin, containing U tailings at Elliot Lake, and from control areas in Ontario, showed variation by site and tissue. The mean level of 226Ra in bones of grouse sampled from Elliot Lake (28.5 mBq.g -1) was higher than that in bones of birds from a distant control site near Sudbury, Ontario (8.0 mBq.g -1), but similar to the value in a local control population (28.1 mBq.g -1). Birds from Mid- and Low-Serpent River basin populations (with 17.1 and 17.7
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Wilson, D., Daniel Breton, Lauren Waldrop, et al. Signal propagation modeling in complex, three-dimensional environments. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/40321.

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The Signal Physics Representation in Uncertain and Complex Environments (SPRUCE) work unit, part of the U.S. Army Engineer Research and Development Center (ERDC) Army Terrestrial-Environmental Modeling and Intelligence System (ARTEMIS) work package, focused on the creation of a suite of three-dimensional (3D) signal and sensor performance modeling capabilities that realistically capture propagation physics in urban, mountainous, forested, and other complex terrain environments. This report describes many of the developed technical capabilities. Particular highlights are (1) creation of a Java
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Heitman, Joshua L., Alon Ben-Gal, Thomas J. Sauer, Nurit Agam, and John Havlin. Separating Components of Evapotranspiration to Improve Efficiency in Vineyard Water Management. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7594386.bard.

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Vineyards are found on six of seven continents, producing a crop of high economic value with much historic and cultural significance. Because of the wide range of conditions under which grapes are grown, management approaches are highly varied and must be adapted to local climatic constraints. Research has been conducted in the traditionally prominent grape growing regions of Europe, Australia, and the western USA, but far less information is available to guide production under more extreme growing conditions. The overarching goal of this project was to improve understanding of vineyard water
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