Zobrazeno 1 - 10
of 81
pro vyhledávání: '"K. E. Campbell"'
Publikováno v:
Biogeosciences, Vol 18, Pp 441-465 (2021)
Estimates of the gross terrestrial carbon uptake exhibit large uncertainties. Sun-induced chlorophyll fluorescence (SIF) has an apparent near-linear relationship with gross primary production (GPP). This relationship will potentially facilitate the m
Externí odkaz:
https://doaj.org/article/5b1480cd7ee84317803cab4cc8103e27
Autor:
Petya K. E. Campbell, Karl F. Huemmrich, Elizabeth M. Middleton, Lauren A. Ward, Tommaso Julitta, Craig S. T. Daughtry, Andreas Burkart, Andrew L. Russ, William P. Kustas
Publikováno v:
Remote Sensing, Vol 11, Iss 5, p 488 (2019)
There is a critical need for sensitive remote sensing approaches to monitor the parameters governing photosynthesis, at the temporal scales relevant to their natural dynamics. The photochemical reflectance index (PRI) and chlorophyll fluorescence (F)
Externí odkaz:
https://doaj.org/article/ebd8d9f747424f45b6f7e7044e8da951
Autor:
Yen-Ben Cheng, Elizabeth M. Middleton, Qingyuan Zhang, Karl F. Huemmrich, Petya K. E. Campbell, Lawrence A. Corp, Bruce D. Cook, William P. Kustas, Craig S. Daughtry
Publikováno v:
Remote Sensing, Vol 5, Iss 12, Pp 6857-6879 (2013)
The utilization of remotely sensed observations for light use efficiency (LUE) and tower-based gross primary production (GPP) estimates was studied in a USDA cornfield. Nadir hyperspectral reflectance measurements were acquired at canopy level during
Externí odkaz:
https://doaj.org/article/e45d251cfabd46e58b858d9ffd05035d
Publikováno v:
Biogeosciences, 18(2), 441-465. European Geosciences Union
Biogeosciences, Vol 18, Pp 441-465 (2021)
Biogeosciences, Vol 18, Pp 441-465 (2021)
Estimates of the gross terrestrial carbon uptake exhibit large uncertainties. Sun-induced chlorophyll fluorescence (SIF) has an apparent near-linear relationship with gross primary production (GPP). This relationship will potentially facilitate the m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c763ced5268bfbe19cebb7fba10a9d9e
https://doi.org/10.5194/bg-18-441-2021
https://doi.org/10.5194/bg-18-441-2021
Autor:
Shawn P. Serbin, Scott J. Davidson, Matthew J. Macander, Z. Pierrat, David R. Thompson, Jonathan A. Wang, Steven Unger, Peter R. Nelson, Nimrod Carmon, Dedi Yang, Howard E. Epstein, Gerald V. Frost, Steven F. Oberbauer, Sergio A. Vargas Zesati, Miguel Velez-Reyes, Erica L Orcutt, Troy S. Magney, Andrew J. Maguire, K. Fred Huemmrich, Petya K. E. Campbell
Publikováno v:
Journal of Geophysical Research: Biogeosciences. 127
Observing the environment in the vast inaccessible regions of Earth through remote sensing platforms provides the tools to measure ecological dynamics. The Arctic tundra biome, one of the largest i...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5521ff5777eb6674eafaed68e3bc4f81
https://doi.org/10.1029/2021jg006697
https://doi.org/10.1029/2021jg006697
Autor:
J. Joiner, Y. Yoshida, A. P. Vasilkov, E. M. Middleton, P. K. E. Campbell, A. Kuze, L. A. Corp
Publikováno v:
Atmospheric Measurement Techniques, Vol 5, Iss 4, Pp 809-829 (2012)
Global mapping of terrestrial vegetation fluorescence from space has recently been accomplished with high spectral resolution (ν/Δν > 35 000) measurements from the Japanese Greenhouse gases Observing SATellite (GOSAT). These data are of interest b
Externí odkaz:
https://doaj.org/article/baf7af0797ac4508b2d0ebc86177d52c
Autor:
Joseph G. Alfieri, Peiqi Yang, Elizabeth M. Middleton, Lauren Ward, Tommaso Julitta, William P. Kustas, Karl F. Huemmrich, Christiaan van der Tol, Craig S. T. Daughtry, Petya K. E. Campbell, Andrew L. Russ
Publikováno v:
Data in Brief, Vol 39, Iss, Pp 107600-(2021)
Recent advances in leaf fluorescence measurements and canopy proximal remote sensing currently enable the non-destructive collection of rich diurnal and seasonal time series, which are required for monitoring vegetation function at the temporal and s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0235f568d8fccf73b9312d3ce91c40bc
http://www.sciencedirect.com/science/article/pii/S2352340921008751
http://www.sciencedirect.com/science/article/pii/S2352340921008751
Publikováno v:
Ecological Applications. 31
Multiyear trends in Normalized Difference Vegetation Index (NDVI) have been used as metrics of high latitude ecosystem change based on the assumption that NDVI change is associated with ecological change, generally as changes in green vegetation amou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d67ea307721fa36174aa5b5412d0d5a7
https://doi.org/10.1002/eap.2435
https://doi.org/10.1002/eap.2435
Publikováno v:
IGARSS
For accurate assessment of vegetation function there is a strong need for advancement in the remote sensing methods and instruments, to enable monitoring of the parameters governing photosynthesis at the temporal frequency relevant to their dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96660e0791fd33e9175fac98daae3918
https://doi.org/10.1109/igarss47720.2021.9554902
https://doi.org/10.1109/igarss47720.2021.9554902
