Abstract
Evaporation from maize and soil in a pair of lysimeters in a maize crop, ventilation and net radiation above the crop canopy, temperature and humidity above and below the canopy, and leaf area and stomatal resistance in six strata of the canopy were observed during 12 one-hour periods. The measured evaporation was mimicked by an algebraic simulator of energy exchange in six canopy strata plus a seventh stratum occupied by bare stems and the soil surface when the observed stomatal resistance or a resistance that varied realistically with radiation was specified. If a constant stomatal resistance was specified, the simulation was inaccurate. Accurate simulation of evaporation from the soil required that diffusivity be decreased more rapidly within the lower canopy than the observed decrease in horizontal wind.
| Original language | English |
|---|---|
| Pages (from-to) | 113-123 |
| Number of pages | 11 |
| Journal | Agricultural Meteorology |
| Volume | 10 |
| Issue number | C |
| DOIs | |
| Publication status | Published - 1972 |
| Externally published | Yes |
Fingerprint
Cite this
}
Comparison of simulated and actual evaporation from maize and soil in a lysimeter. / Waggoner, Paul E.; Turner, Neil C.
In: Agricultural Meteorology, Vol. 10, No. C, 1972, p. 113-123.Research output: Contribution to journal › Article
TY - JOUR
T1 - Comparison of simulated and actual evaporation from maize and soil in a lysimeter
AU - Waggoner, Paul E.
AU - Turner, Neil C.
PY - 1972
Y1 - 1972
N2 - Evaporation from maize and soil in a pair of lysimeters in a maize crop, ventilation and net radiation above the crop canopy, temperature and humidity above and below the canopy, and leaf area and stomatal resistance in six strata of the canopy were observed during 12 one-hour periods. The measured evaporation was mimicked by an algebraic simulator of energy exchange in six canopy strata plus a seventh stratum occupied by bare stems and the soil surface when the observed stomatal resistance or a resistance that varied realistically with radiation was specified. If a constant stomatal resistance was specified, the simulation was inaccurate. Accurate simulation of evaporation from the soil required that diffusivity be decreased more rapidly within the lower canopy than the observed decrease in horizontal wind.
AB - Evaporation from maize and soil in a pair of lysimeters in a maize crop, ventilation and net radiation above the crop canopy, temperature and humidity above and below the canopy, and leaf area and stomatal resistance in six strata of the canopy were observed during 12 one-hour periods. The measured evaporation was mimicked by an algebraic simulator of energy exchange in six canopy strata plus a seventh stratum occupied by bare stems and the soil surface when the observed stomatal resistance or a resistance that varied realistically with radiation was specified. If a constant stomatal resistance was specified, the simulation was inaccurate. Accurate simulation of evaporation from the soil required that diffusivity be decreased more rapidly within the lower canopy than the observed decrease in horizontal wind.
UR - http://www.scopus.com/inward/record.url?scp=3643147882&partnerID=8YFLogxK
U2 - 10.1016/0002-1571(72)90012-X
DO - 10.1016/0002-1571(72)90012-X
M3 - Article
VL - 10
SP - 113
EP - 123
JO - Agricultural Meteorology
JF - Agricultural Meteorology
SN - 0002-1571
IS - C
ER -