|Norman, John - UNIVERSITY OF WISCONSIN|
Submitted to: Agricultural and Forest Meteorology
Publication Type: Research Notes
Publication Acceptance Date: July 5, 1999
Publication Date: August 10, 1999
Technical Abstract: The note by Lhomme and Chehbouni (1999) (hereafter referred as LC) discusses the apparent contradictions in the basic conservation equations of dual-source vegetation models. They claim these inconsistencies appeared in several papers which includes the dual-source formulation of Norman et al. (1995) Agric. Forest Meteorol., 77:263-293]. This note clarifies the assumptions leading to our formulations which will show that there are no inconsistencies in our model (hereafter referred to as N95). Moreover, we propose modifications to Beer's law approach for estimating net radiation divergence and a simple method to account for clumped vegetation that attempts to accommodate typical heterogeneity associated with sparse vegetation in an alternative way to the "patch" approach.