Search Results - "Rundquist, Donald"

Estimating green LAI in four crops: Potential of determining optimal spectral bands for a universal algorithm by Nguy-Robertson, Anthony L., Peng, Yi, Gitelson, Anatoly A., Arkebauer, Timothy J., Pimstein, Agustin, Herrmann, Ittai, Karnieli, Arnon, Rundquist, Donald C., Bonfil, David J.

“…•Examined nine vegetation indices (VI) for estimating green leaf area index (green LAI).•Four vastly different crops were examined: maize, potato, soybean, and…”
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Remote estimation of gross primary production in maize and support for a new paradigm based on total crop chlorophyll content by Peng, Yi, Gitelson, Anatoly A., Keydan, Galina, Rundquist, Donald C., Moses, Wesley

“…The accurate quantification of gross primary production (GPP) in crops is important for regional and global studies of carbon budgets. Because of the observed…”
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Green Leaf Area Index Estimation in Maize and Soybean: Combining Vegetation Indices to Achieve Maximal Sensitivity by Nguy-Robertson, Anthony, Gitelson, Anatoly, Peng, Yi, Vina, Andres, Arkebauer, Timothy, Rundquist, Donald

“…Vegetation indices (VIs), traditionally used for estimation of green leaf area index (gLAI), have different sensitivities along the range of gLAI variability…”
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Estimation of chlorophyll- a concentration in turbid productive waters using airborne hyperspectral data by Moses, Wesley J., Gitelson, Anatoly A., Perk, Richard L., Gurlin, Daniela, Rundquist, Donald C., Leavitt, Bryan C., Barrow, Tadd M., Brakhage, Paul

“…Algorithms based on red and near infra-red (NIR) reflectances measured using field spectrometers have been previously shown to yield accurate estimates of…”
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Remote estimation of canopy chlorophyll content in crops by Gitelson, Anatoly A., Viña, Andrés, Ciganda, Verónica, Rundquist, Donald C., Arkebauer, Timothy J.

“…Accurate estimation of spatially distributed chlorophyll content (Chl) in crops is of great importance for regional and global studies of carbon balance and…”
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A simple semi-analytical model for remote estimation of chlorophyll- a in turbid waters: Validation by Gitelson, Anatoly A., Dall'Olmo, Giorgio, Moses, Wesley, Rundquist, Donald C., Barrow, Tadd, Fisher, Thomas R., Gurlin, Daniela, Holz, John

“…Accurate assessment of phytoplankton chlorophyll- a (chl a) concentrations in turbid waters by means of remote sensing is challenging due to the optical…”
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Remote estimation of crop gross primary production with Landsat data by Gitelson, Anatoly A., Peng, Yi, Masek, Jeffery G., Rundquist, Donald C., Verma, Shashi, Suyker, Andrew, Baker, John M., Hatfield, Jerry L., Meyers, Tilden

“…An accurate and synoptic quantification of gross primary production (GPP) in crops is essential for studies of carbon budgets at regional and global scales. In…”
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Relationship between gross primary production and chlorophyll content in crops: Implications for the synoptic monitoring of vegetation productivity by Gitelson, Anatoly A., Viña, Andrés, Verma, Shashi B., Rundquist, Donald C., Arkebauer, Timothy J., Keydan, Galina, Leavitt, Bryan, Ciganda, Veronica, Burba, George G., Suyker, Andrew E.

“…Accurate estimation of spatially distributed CO2 fluxes is of great importance for regional and global studies of carbon balance. We applied a recently…”
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Non-destructive detection of water stress and estimation of relative water content in maize by Zygielbaum, Arthur I., Gitelson, Anatoly A., Arkebauer, Timothy J., Rundquist, Donald C.

“…Non‐destructive estimation of leaf water content provides vital information about vegetation productivity. We report here on controlled seven day experiments…”
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Assessing the potential of SeaWiFS and MODIS for estimating chlorophyll concentration in turbid productive waters using red and near-infrared bands by Dall'Olmo, Giorgio, Gitelson, Anatoly A., Rundquist, Donald C., Leavitt, Bryan, Barrow, Tadd, Holz, John C.

“…Bio-optical algorithms for remote estimation of chlorophyll-a concentration ( Chl) in case-1 waters exploit the upwelling radiation in the blue and green…”
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Differential Spatial Gradients of Wheat Streak Mosaic Virus into Winter Wheat from a Central Mite-Virus Source by Stilwell, Abby R, Rundquist, Donald C, Marx, David B, Hein, Gary L

“…The wheat curl mite (WCM), Aceria tosichella Keifer, transmits three potentially devastating viruses to winter wheat. An increased understanding of mite…”
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Comparison of Two Techniques for Nondestructive Measurement of Chlorophyll Content in Grapevine Leaves by Steele, M.R, Gitelson, A.A, Rundquist, D.C

“…Traditional methods for chlorophyll (Chl) measurement include wet chemical extractions and handheld Chl meters. The recent availability of small and affordable…”
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Nondestructive estimation of anthocyanin content in grapevine leaves by Steele, Mark R, Gitelson, Anatoly A, Rundquist, Donald C, Merzlyak, Mark N

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Monitoring maize (Zea mays L.) phenology with remote sensing by Vina, A, Gitelson, A.A, Rundquist, D.C, Keydan, G, Leavitt, B, Schepers, J

“…Monitoring crop phenology is required for understanding intra-and interannual variations of agroecosystems, as well as for improving yield prediction models…”
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Relationships between vegetation indices and root zone soil moisture under maize and soybean canopies in the US Corn Belt: a comparative study using a close-range sensing approach by Swain, Sharmistha, Wardlow, Brian D., Narumalani, Sunil, Rundquist, Donald C., Hayes, Michael J.

“…Understanding the relationships between root zone soil moisture and vegetation spectral signals will enhance our ability to manage water resources and monitor…”
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Enhancing the detection and classification of coral reef and associated benthic habitats: A hyperspectral remote sensing approach by Mishra, Deepak R., Narumalani, Sunil, Rundquist, Donald, Lawson, Merlin, Perk, R.

“…Coral reefs and associated benthic habitats are heterogeneous in nature. A remote sensor designed to discriminate these environments requires a high number of…”
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Characterizing the vertical diffuse attenuation coefficient for downwelling irradiance in coastal waters: Implications for water penetration by high resolution satellite data by Mishra, Deepak R., Narumalani, Sunil, Rundquist, Donald, Lawson, Merlin

“…To characterize the water column, the diffuse attenuation coefficient of downwelling irradiance, K d( z, λ) (m − 1 ) is one of the most important optical…”
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Elements of an Integrated Phenotyping System for Monitoring Crop Status at Canopy Level by Rundquist, Donald, Gitelson, Anatoly, Leavitt, Bryan, Zygielbaum, Arthur, Perk, Richard, Keydan, Galina

“…Great care is needed to obtain spectral data appropriate for phenotyping in a scientifically rigorous manner. This paper discusses the procedures and…”
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Remote estimation of leaf area index and green leaf biomass in maize canopies by Gitelson, Anatoly A., Viña, Andrés, Arkebauer, Timothy J., Rundquist, Donald C., Keydan, Galina, Leavitt, Bryan

“…Leaf area index (LAI) is an important variable for climate modeling, estimates of primary production, agricultural yield forecasting, and many other diverse…”
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Nondestructive Estimation of Leaf Chlorophyll Content in Grapes by Steele, Mark, Gitelson, Anatoly A, Rundquist, Donald

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