Search Results

You are looking at 1 - 3 of 3 items for :

  • Water vapor x
  • Catchment-scale Hydrological Modelling & Data Assimilation (CAHMDA) III x
  • All content x
Clear All
Yongqiang Zhang, Francis H. S. Chiew, Lu Zhang, and Hongxia Li

model The Penman–Monteith equation can be written as where E is evapotranspiration, λ is the latent heat of vaporization, Δ = de */ dT a is the slope of the curve relating saturation water vapor pressure to temperature, D = e *( T a ) − e a is the vapor pressure deficit of the air, e *( T a ) is the saturation vapor pressure at a given air temperature, e a is the actual vapor pressure, γ is the psychrometric constant, ρ a is the air density, C p is the specific heat

Full access
Damian J. Barrett and Luigi J. Renzullo

temperature observation operator The starting point for both observation operators is the two-layer surface energy balance (SEB) model of Shuttleworth and Wallace (1985) , Friedl (1995) , Norman et al. (2003) , Anderson et al. (1997) , and Friedl (2002) . In a two-layer SEB, the soil and vegetation layers are sources of latent and sensible heat fluxes mediated by aerodynamic, canopy, boundary layer, and soil surface resistances. The fluxes are driven by gradients in temperature and water vapor

Full access
Adriaan J. Teuling, Remko Uijlenhoet, Bart van den Hurk, and Sonia I. Seneviratne

1. Introduction The dynamic role of the land surface in the climate system is nowadays widely recognized. Fluxes of latent heat from the land surface into the atmosphere transport large amounts of energy and water and limit direct heating of the lower atmosphere. Their magnitude, however, strongly depends on the soil moisture content of the soil. Model studies have shown that without soil moisture interacting freely with the atmosphere, warm season precipitation and temperature variability over

Full access