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| 1 | Conditional inversion to estimate parameters from eddy-flux observations显示文摘Aims Data assimilation is a useful tool to extract information from large datasets of the net ecosystem exchange(NEE)of CO_(2) obtained by eddy-flux measurements.However,the number of parameters in ecosystem models that can be constrained by eddy-flux data is limited by conventional inverse analysis that estimates parameter values based on one-time inversion.This study aimed to improve data assimilation to increase the number of constrained parameters.Methods In this study,we developed conditional Bayesian inversion to maximize the number of parameters to be constrained by NEE data in several steps.In each step,we conducted a Bayesian inversion to constrain parameters.The maximum likelihood estimates of the constrained parameters were then used as prior to fix parameter values in the next step of inversion.The conditional inversion was repeated until there were no more parameters that could be further constrained.We applied the conditional inversion to hourly NEE data from Harvard Forest with a physiologically based ecosystem model.Important Findings Results showed that the conventional inversion method constrained 6 of 16 parameters in the model while the conditional inversion method constrained 13 parameters after six steps.The cost function that indicates mismatch between the modeled and observed data decreased with each step of conditional Bayesian inversion.The Bayesian information criterion also decreased,suggesting reduced information loss with each step of conditional Bayesian inversion.A wavelet analysis reflected that model performance under conditional Bayesian inversion was better than that under conventional inversion at multiple time scales,except for seasonal and half-yearly scales.In addition,our analysis also demonstrated that parameter convergence in a subsequent step of the conditional inversion depended on correlations with the parameters constrained in a previous step.Overall,the conditional Bayesian inversion substantially increased the number of parameters to be constrained by NEE data and can be a powerful tool to be used in data assimilation in ecology. | Xiaowen Wu Yiqi Luo Ensheng Weng Luther White Yong Ma Xuhui Zhou | 2009 | Journal of Plant Ecology2009，2，2： | 3 |
| 2 | Itraoperativedetermination of cardiac output using multiplane trans esophageal echocardiography: a comparison to thermodilution显示文摘 | Perrino AC Jr Harris SN Luther MA | 1998 | Anesthesiology1998，89，2： | 1 |
| 3 | Correlation of endo-scopic biopsywith tumormarker status in primary intracranialgermcell tumors 显示文摘 | Luther N Edgar MA Dunkei I J | 2006 | J Neuroonco2006，79，1： | 1 |
| 4 | A muscle acetylcholine receptor is expressed in the human cerebellar medulloblastoma cell line TE671显示文摘 | Luther MA Schoepfer R Whiting P etal | 1989 | J Neurosci1989，9，3： | 1 |
| 5 | Iron-sulfurphosphorus cycling in the sediments of a shallow coastal bay: Implications for sediment nutrient release and benthic macroalgal blooms显示文摘 | Rozan T F Taillefert M Trouwborst R E Glazer B T Ma Shufen Herszage J Valdes L M Price K S Luther G W | 2002 | Limnol Oceanogr2002，47，5： | 1 |
| 6 | Correlation of endoscopic biopsy with tumor marker status in primary intracranial germ cell tumors显示文摘 | Luther N Edgar MA Dunkel IJ | 2006 | J Neurooncol2006，79，1： | 1 |
| 7 | Correlation of endoscopic biopsy with tumor marker status in primary intracranial germ cell tumors 显示文摘 | Luther N Edgar MA Dunkei I J | 2006 | J Neurooncol2006，79，1： | 1 |
| 8 | Iron-sulfur-phsphorus cycling in the sediments of a shallow coastal bay: Implications for sediment nutrient release and benthic macroalgal blooms 显示文摘 | Rozan T F Taillefert M Trouwborst R E Glazer B T Ma S F Herszage J Valdes L M Price K S Luther G W | 2002 | Limnol Oceanogr2002，47，5： | 1 |
| 9 | Correlation of endoscopic biopsy with tumor marker status in primary intracranial germ cell tumors显示文摘 | Luther N Edgar MA Dunkei IJ | 2006 | J Neuro-oncol2006，79，1： | 1 |
| 10 | Endogenous bradykinin contributes to increased plasminogen activator inhibitor I antigen follow hemodialysis显示文摘 | Annis M Mamey Ti Ma James M Luther | 2009 | J Am Soc Nephrol2009，20，： | 1 |
| 11 | A muscle acetylcholine receptor is expressed in the human cerebellar medulloblastoma cell line TE671显示文摘 | Luther MA Schoepfer R Whiting P | 1989 | J Neurosci1989，9，： | 1 |
| 12 | A muscle acetylcholine receptor is expressed in the human cerebellar medulloblastoma cell line TE671 显示文摘 | Schoepfer R Whiting P | 1989 | J Neurosci1989，9，3： | 1 |
| 13 | Crystal structures of recombinant 19-kDa human flbroblast collagenase complexed to itself显示文摘 | LOVEJOY B HASSELL AM LUTHER MA | 1994 | Biochemistry1994，33，27： | 1 |
| 14 | Intraoperative determi- nation of cardiac output using multiplane transesophageal echocardiography: a comparison to thermodilution 显示文摘 | Perrino AJ Harris SN Luther MA | 1998 | Anes- thesiology1998，89，2： | 1 |
| 15 | Intraoperative determi- nation of cardiac output using muhiplane transesophageal echocar- diography: a comparison to thermodilution 显示文摘 | Perrino AC Jr Harris SN Luther MA | 1998 | Anesthesiology1998，89，2： | 1 |
| 16 | The roles of anoxia, H2S, and storm events in fish kills of dead-end canals of Delaware inland bays显示文摘 | George W. Luther Shufen Ma Robert Trouwborst Brian Glazer Michelle Blickley Robert W. Scarborough Michael G. Mensinger | 2004 | Estuaries2004，，3： | 1 |
| 17 | A muscle acetylcholine receptor is expressed in the human cerebellar medulloblastoma cell line TE 671 显示文摘 | Luther MA Schoepfer R Whiting P | 1989 | J Neurosci1989，9，3： | 1 |
| 18 | Photooltaie devices employing tenary PbS,Sel-x nanocryseals 显示文摘 | MA W L LUTHER J M ZHENG H M | 2009 | Nano Lett2009，9，4： | 1 |
| 19 | Correlation of endoscopic biopsy with tumor marker status in primary intracranial germ cell tumors显示文摘 | Luther N Edgar MA Dunkel IJ | 2006 | J Neurooncol2006，79，1： | 1 |
| 20 | Alterations of cardi- ovascular permormance during laparoscopic colectomy: a combined hemodynamic and echocardiographic analysis 显示文摘 | Haris SN Ballantyne GH Luther MA | 1996 | Anesth Analg1996，83，3： | 1 |
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