Search Results - "Campbell, P. K. E"

Models of fluorescence and photosynthesis for interpreting measurements of solar-induced chlorophyll fluorescence by van der Tol, C., Berry, J. A., Campbell, P. K. E., Rascher, U.

“…We have extended a conventional photosynthesis model to simulate field and laboratory measurements of chlorophyll fluorescence at the leaf scale. The…”
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Filling-in of near-infrared solar lines by terrestrial fluorescence and other geophysical effects: simulations and space-based observations from SCIAMACHY and GOSAT by Joiner, J, Yoshida, Y, Vasilkov, A. P, Middleton, E. M, Campbell, P. K. E, Kuze, A, Corp, L. A

“…Global mapping of terrestrial vegetation fluorescence from space has recently been accomplished with high spectral resolution (ν/Δν > 35 000) measurements from…”
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Assessment of Vegetation Stress Using Reflectance or Fluorescence Measurements by Campbell, P.K.E, Middleton, E.M, McMurtrey, J.E, Corp, L.A, Chappelle, E.W

“…Current methods for large-scale vegetation monitoring rely on multispectral remote sensing, which has serious limitation for the detection of vegetation…”
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USING DESIS AND EO-1 HYPERION REFLECTANCE TIME SERIES FOR THE ASSESSMENT OF VEGETATION TRAITS AND GROSS PRIMARY PRODUCTION (GPP) by Campbell, P. E. K., Huemmrich, K. F., Middleton, E. M., Alfieri, J., van der Tol, C., Neigh, C. S. R.

“…This study evaluates the potential of the DLR Earth Sensing Imaging Spectrometer (DESIS) visible through near-infrared (VNIR) surface reflectance to augment…”
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EVALUATING APPROACHES RELATING ECOSYSTEM PRODUCTIVITY WITH DESIS SPECTRAL INFORMATION by Huemmrich, K. F., Campbell, P. E. K., Harding, D. J., Ranson, K. J., Wynne, R., Thomas, V., Middleton, E. M.

“…Data from the DLR Earth Sensing Imaging Spectrometer (DESIS), mounted on the International Space Station (ISS), were used to develop and test algorithms for…”
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Comparison of measurements and FluorMOD simulations for solar-induced chlorophyll fluorescence and reflectance of a corn crop under nitrogen treatments by Middleton, E. M., Corp, L. A., Campbell, P. K. E.

“…Laboratory and field measurements previously acquired from foliage and canopies of corn (Zea mays L.) under controlled nitrogen (N) fertilization were used to…”
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Unraveling the physical and physiological basis for the solar- induced chlorophyll fluorescence and photosynthesis relationship using continuous leaf and canopy measurements of a corn crop by Yang, Peiqi, van der Tol, Christiaan, Campbell, Petya K. E, Middleton, Elizabeth M

“…Estimates of the gross terrestrial carbon uptake exhibit large uncertainties. Sun-induced chlorophyll fluorescence (SIF) has an apparent near-linear…”
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Evaluating Approaches Relating Ecosystem Productivity with DESIS Spectral Information by Huemmrich, K F, Campbell, P E K, Harding, D J, Ranson, K J, Wynne, R, Thomas, V, Middleton, E M

“…Data from the DLR Earth Sensing Imaging Spectrometer (DESIS), mounted on the International Space Station (ISS), were used to develop and test algorithms for…”
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Oxygen transmittance correction for solar-induced chlorophyll fluorescence measured on proximal sensing: Application to the NASA-GSFC fusion tower by Sabater, N., Middleton, E. M., Malenovsky, Z., Alonso, L., Verrelst, J., Huemmrich, K. F., Campbell, P. K. E., Kustas, W. P., Vicent, J., Van Wittenberghe, S., Moreno, J.

“…Since oxygen (O 2 ) absorption of light becomes more pronounced at higher pressure levels, even a few meters distance between the target and the sensor can…”
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Canopy level Chlorophyll Fluorescence and the PRI in a cornfield by Middleton, E. M., Cheng, Y., Corp, L. A., Campbell, P. K. E., Huemmrich, K. F., Zhang, Q., Kustas, W. P.

“…Two bio-indicators, the Photochemical Reflectance Index (PRI) and solar-induced red and far-red Chlorophyll Fluorescence (SIF), were derived from directional…”
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Fusion: A f̲ully u̲ltraportable s̲ystem for i̲maging o̲bjects in n̲ature by Corp, L A, Cook, B D, Middleton, E M, Cheng, Y, Huemmrich, K F, Campbell, P K E

“…To improve satellite-derived estimates of terrestrial plant production and exchange of CO 2 , water, and energy with the atmosphere, scientists need to…”
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Applications using EO-1 hyperion AT-sensor and surface reflectance: comparisons and case studies by Yen-Ben Cheng, Middleton, E M, Qingyuan Zhang, Ungar, S, Campbell, P K E

“…The NASA EO-1 Hyperion observations were utilized to derive at-sensor Top-of-atmosphere (TOA) and ATREM-corrected surface reflectance over three study sites of…”
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Using EO-1 Hyperion images to prototype environmental products for HyspIRI by Middleton, E M, Campbell, P K E, Ungar, S G, Ong, L, Zhang, Q, Huemmrich, K F, Mandl, D J, Frye, S W

“…In November 2010, the Earth Observing One (EO-1) Satellite Mission will successfully complete a decade of Earth imaging by its two unique instruments, the…”
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