A Generalized Model of Hourly Net Ecosystem Exchange (NEE) for Florida Everglades Freshwater Wetlands
A Generalized Model of Hourly Net Ecosystem Exchange (NEE) for Florida Everglades Freshwater Wetlands
复制标题
佛罗里达大沼泽地淡水湿地每小时净生态系统交换(NEE)的广义模型
DOI:
10.1007/s13157-017-0928-y
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发表时间:
2017
期刊:
影响因子:
2
通讯作者:
Abdul-Aziz, Omar I.
中科院分区:
文献类型:
--
作者:
Ishtiaq, Khandker S.;Abdul-Aziz, Omar I.
A generalized model is presented to estimate the diurnal cycle of hourly net ecosystem exchange (NEE) based on a corresponding single reference-time observation from the Florida Everglades freshwater wetlands. The year-round diurnal cycles of NEE for two different (short vs. long hydroperiod) marsh sites were normalized by the corresponding day- and site-specific reference observations of NEE to obtain a common dimensionless cycle. An extended stochastic harmonic analysis (ESHA) was utilized to calibrate and validate the model with hourly eddy-covariance observations of NEE during 2008–13. The model involved five parameters, which exhibited spatiotemporal robustness by collapsing into narrow ranges among different days, years and sites. The daily estimates were averaged over all calibration days to calculate the site-specific ensemble parameter sets. The site-specific ensemble parameters were further averaged over four mid-day reference times (11 A.M. to 2 P.M.) across sites to obtain a generalized ensemble parameter set. Estimated hourly NEE using the site-specific and the generalized parameter sets indicated a good performance of the model (e.g., Nash-Sutcliffe Efficiency, NSE = 0.66–0.89). The model is represented in three standalone formats, including an Excel spreadsheet, to simulate the hourly NEE for the desired Julian days and years from the respective single reference observations.
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DOI:
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发表时间:
2005
期刊:
影响因子:
--
作者:
T. Dyar;S. Alhadeff
通讯作者:
S. Alhadeff
影响因子:
6.8
作者:
AKAIKE, H
通讯作者:
AKAIKE, H
影响因子:
3.7
作者:
S. Malone;C. Staudhammer;S. Oberbauer;P. Olivas;M. G. Ryan;J. Schedlbauer;H. Loescher;G. Starr
通讯作者:
G. Starr
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. R. Ramesh Kumar;S. M. Pednekar;M. Katsumata;M. K. Antony;Y. Kuroda;A. Unnikrishnan
通讯作者:
A. Unnikrishnan
影响因子:
6.2
作者:
Moffat, Antje M.;Papale, Dario;Stauch, Vanessa J.
通讯作者:
Stauch, Vanessa J.