Influence of wave phase difference between surface soil heat flux and soil surface temperature on land surface energy balance closure

dc.contributor.author Gao, Z.
dc.contributor.author Horton, R.
dc.contributor.author Horton, Robert
dc.contributor.author Liu, H. P.
dc.contributor.author Wen, J.
dc.contributor.author Wang, L.
dc.contributor.department Agronomy
dc.date 2018-01-26T08:42:14.000
dc.date.accessioned 2020-06-29T23:04:56Z
dc.date.available 2020-06-29T23:04:56Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.issued 2009-01-01
dc.description.abstract <p>The sensitivity of climate simulations to the diurnal variation in surface energy budget encourages enhanced inspection into the energy balance closure failure encountered in micrometeorological experiments. The diurnal wave phases of soil surface heat flux and temperature are theoretically characterized and compared for both moist soil and absolute dry soil surfaces, indicating that the diurnal wave phase difference between soil surface heat flux and temperature ranges from 0 to π/4 for natural soils. Assuming net radiation and turbulent heat fluxes have identical phase with soil surface temper- ature, we evaluate potential contributions of the wave phase difference on the surface energy balance closure. Results show that the sum of sensible heat flux (H ) and latent heat flux (LE ) is always less than surface available energy (Rn − G0) even if all energy components are accurately measured, their footprints are strictly matched, and all cor- rections are made. The energy balance closure ratio (ε) is extremely sensitive to the ratio of soil surface heat flux amplitude (A4) to net radiation flux amplitude (A1), and large value of A4/A1 causes a significant failure in surface energy balance closure. An experimental case study confirms the theoretical analysis.</p>
dc.description.comments <p>This article is published as Gao, Z., R. Horton, H.P. Liu, J. Wen, and L. Wang. 2009. Influence of wave phase difference between surface soil heat flux and soil surface temperature on land surface energy balance closure. Hydrol. Earth Sys. Sci. Discuss. 6:1089-1110. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/403/
dc.identifier.articleid 1452
dc.identifier.contextkey 11420367
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/403
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4758
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/403/2009_Horton_InfluenceWave.pdf|||Sat Jan 15 00:08:09 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Meteorology
dc.subject.disciplines Soil Science
dc.title Influence of wave phase difference between surface soil heat flux and soil surface temperature on land surface energy balance closure
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication d3fb0917-6868-417e-9695-a010896cfafa
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
File
Original bundle
Now showing 1 - 1 of 1
Name:
2009_Horton_InfluenceWave.pdf
Size:
535.87 KB
Format:
Adobe Portable Document Format
Description:
Collections