A Simple Instrument for the Field Measurement of Turbulent Diffusion FluxSource: Journal of Applied Meteorology:;1969:;volume( 008 ):;issue: 004::page 509Author:Stanhill, G.
DOI: 10.1175/1520-0450(1969)008<0509:ASIFTF>2.0.CO;2Publisher: American Meteorological Society
Abstract: A new instrument is described which enables integrated values of water and carbon dioxide flux to be obtained under field conditions. The principle of operation is the Thornthwaite-Holzman equation for turbulent diffusion under adiabatic conditions, but a simple adaption would allow automatic correction for nonadiabatic conditions. The instrument is simple and designed for continuous unattended operation under difficult field conditions, where integrated flux values are required over long time intervals. Preliminary tests under such conditions show satisfactory agreement with an independent estimate of evapotranspiration from autumn fields of tall grasses and sedges.
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| contributor author | Stanhill, G. | |
| date accessioned | 2017-06-09T17:03:13Z | |
| date available | 2017-06-09T17:03:13Z | |
| date copyright | 1969/08/01 | |
| date issued | 1969 | |
| identifier issn | 0021-8952 | |
| identifier other | ams-7862.pdf | |
| identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4221311 | |
| description abstract | A new instrument is described which enables integrated values of water and carbon dioxide flux to be obtained under field conditions. The principle of operation is the Thornthwaite-Holzman equation for turbulent diffusion under adiabatic conditions, but a simple adaption would allow automatic correction for nonadiabatic conditions. The instrument is simple and designed for continuous unattended operation under difficult field conditions, where integrated flux values are required over long time intervals. Preliminary tests under such conditions show satisfactory agreement with an independent estimate of evapotranspiration from autumn fields of tall grasses and sedges. | |
| publisher | American Meteorological Society | |
| title | A Simple Instrument for the Field Measurement of Turbulent Diffusion Flux | |
| type | Journal Paper | |
| journal volume | 8 | |
| journal issue | 4 | |
| journal title | Journal of Applied Meteorology | |
| identifier doi | 10.1175/1520-0450(1969)008<0509:ASIFTF>2.0.CO;2 | |
| journal fristpage | 509 | |
| journal lastpage | 513 | |
| tree | Journal of Applied Meteorology:;1969:;volume( 008 ):;issue: 004 | |
| contenttype | Fulltext |