RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site
This paper compares direct measurements of evaporation with the values predicted for reference transpiration. The measurements of actual evaporation were made using an eddy correlation device on a grass field adjacent to the river Thames. Measurements of soil moisture and the driving meteorological...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
1998-01-01
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| Series: | Hydrology and Earth System Sciences |
| Online Access: | http://www.hydrol-earth-syst-sci.net/2/129/1998/hess-2-129-1998.pdf |
| _version_ | 1818496086669524992 |
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| author | J. W. Finch R. J. Harding |
| author_facet | J. W. Finch R. J. Harding |
| author_sort | J. W. Finch |
| collection | DOAJ |
| description | This paper compares direct measurements of evaporation with the values predicted for reference transpiration. The measurements of actual evaporation were made using an eddy correlation device on a grass field adjacent to the river Thames. Measurements of soil moisture and the driving meteorological variables were also made. The results showed that, during a period with minimal rainfall but no water stress, the cumulative values of reference transpiration compared very well with the cumulative measured evaporation and changes in soil moisture content. However, the values on specific days did not compare well. Following significant rainfall, the measured evaporation increased for a few days, probably due to evaporation of free water from the canopy or soil. Reference transpiration fell consistently below the measured evaporation once the soil moisture deficits exceeded 140 to 150 mm. |
| first_indexed | 2024-12-10T18:28:48Z |
| format | Article |
| id | doaj.art-b814d42ef4464770863f782efbb9d23d |
| institution | Directory Open Access Journal |
| issn | 1027-5606 1607-7938 |
| language | English |
| last_indexed | 2024-12-10T18:28:48Z |
| publishDate | 1998-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Hydrology and Earth System Sciences |
| spelling | doaj.art-b814d42ef4464770863f782efbb9d23d2022-12-22T01:38:00ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79381998-01-0121129136RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland siteJ. W. FinchR. J. HardingThis paper compares direct measurements of evaporation with the values predicted for reference transpiration. The measurements of actual evaporation were made using an eddy correlation device on a grass field adjacent to the river Thames. Measurements of soil moisture and the driving meteorological variables were also made. The results showed that, during a period with minimal rainfall but no water stress, the cumulative values of reference transpiration compared very well with the cumulative measured evaporation and changes in soil moisture content. However, the values on specific days did not compare well. Following significant rainfall, the measured evaporation increased for a few days, probably due to evaporation of free water from the canopy or soil. Reference transpiration fell consistently below the measured evaporation once the soil moisture deficits exceeded 140 to 150 mm.http://www.hydrol-earth-syst-sci.net/2/129/1998/hess-2-129-1998.pdf |
| spellingShingle | J. W. Finch R. J. Harding RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site Hydrology and Earth System Sciences |
| title | RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| title_full | RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| title_fullStr | RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| title_full_unstemmed | RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| title_short | RESEARCH NOTE<br>A comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| title_sort | research note br a comparison between reference transpiration and measurements of evaporation for a riparian grassland site |
| url | http://www.hydrol-earth-syst-sci.net/2/129/1998/hess-2-129-1998.pdf |
| work_keys_str_mv | AT jwfinch researchnotebracomparisonbetweenreferencetranspirationandmeasurementsofevaporationforaripariangrasslandsite AT rjharding researchnotebracomparisonbetweenreferencetranspirationandmeasurementsofevaporationforaripariangrasslandsite |