An objective, data‐based method for partitioning evapotranspiration (ET) measurements into soil and plant contributions is proposed and applied to a semiarid shortgrass steppe site in northeastern Colorado. This method requires fairly standard micrometeorological/surface energy balance measurements and relies on a two‐source Penman‐Monteith model of ET and a submodel (proposed and developed in this study) that relates the soil evaporation resistance to the soil Bowen ratio. Assuming that these soil parameters do not vary much during any given day, their daily values are determined by an optimization procedure which exploits the diurnal change in the meteorological data. Once the soil resistance and soil Bowen ratio are determined, the available energy and the ET data are partitioned into soil and plant components and then the canopy resistance and the within‐canopy aerodynamic resistance (herein referred to as the subcanopy resistance) are determined. Comparisons between the present results and other observations made in the shortgrass steppe ecosystem provide support for the validity of the present methods.
Water Resources Research – Wiley
Published: Jun 1, 1992
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera