RUSSELL JAMES Qualls

Dr. RUSSELL JAMES Qualls

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Research Focus & Metrics

Academic Career Length

34Years (1993-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 January 2017 in Journal of Geophysical Research: Atmospheres
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JSJózsef Szilágyi
József Szilágyi
RCRichard Crago
Richard Crago
RQRUSSELL JAMES Qualls
RUSSELL JAMES Qualls

9 November 2016 in Water Resources Research
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RCR. Crago
R. Crago
JSJ. Szilagyi
J. Szilagyi
RQRUSSELL JAMES Qualls
RUSSELL JAMES Qualls
JHJ. Huntington
J. Huntington

1 March 1996 in Water Resources Research
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RQRUSSELL JAMES Qualls
RUSSELL JAMES Qualls
WBWilfried Brutsaert
Wilfried Brutsaert

19 October 2018 in Water Resources Research
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RCRichard D. Crago
Richard D. Crago
RQRUSSELL JAMES Qualls
RUSSELL JAMES Qualls
A rigorous approach to the complementary relationship (CR) in land surface evaporation was introduced by Brutsaert (2015, https://doi.org/10.1002/2015WR017720) in which the problem was cast in nondimensional form for generality, boundary conditions (BCs) were established from physical constraints, and a suitable mathematical solution was formulated. Building on Brutsaert's insightful foundation, Crago et al. (2016, https://doi.org/10.1002/2016WR019753) showed the need, for rational reasons, to modify Brutsaert's BCs by introducing Emax, an upper limit to the apparent potential evaporation corresponding to an actual evaporation of 0. Following the rigorous approach of Brutsaert, this paper presents the derivation and resulting CR. The BC associated with Emax requires a solution that is rescaled with regard to Brutsaert's dimensionless framework and represents a fundamentally different solution from that of Brutsaert. In essence, this formulation acknowledges a pattern of organized variability, which exists within the data when scaled in Brutsaert's dimensionless framework, and our rescaled CR reorganizes the data, collapsing it toward a more universal representation. Our rescaled CR, implemented with two versions of Emax, one based on mass transfer and another on the Penman equation, is evaluated alongside Brutsaert's original formulation. Multiyear data sets from seven Fluxnet sites in Australia, ranging from a sparsely vegetated ephemeral tropical wetland to a temperate forest with a 75‐m‐tall canopy were used to test the formulations on a weekly basis. All three formulations performed adequately. Overall, the rescaled model with Emax based on the Penman equation performed best; it extracts more information with no additional observational data requirements.

8 June 2001 in Jawra Journal of the American Water Resources Association
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RQRUSSELL JAMES Qualls
RUSSELL JAMES Qualls
JSJoshua M. Scott
Joshua M. Scott
WDWilliam B. DeOreo
William B. DeOreo