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dc.contributor.authorGentine, Pierre
dc.contributor.authorHeusinkveld, B.
dc.contributor.authorEntekhabi, Dara
dc.date.accessioned2014-09-09T15:44:14Z
dc.date.available2014-09-09T15:44:14Z
dc.date.issued2012-09
dc.date.submitted2012-08
dc.identifier.issn00431397
dc.identifier.urihttp://hdl.handle.net/1721.1/89230
dc.description.abstractIncoming radiation forcing at the land surface is partitioned among the components of the surface energy balance in varying proportions depending on the time scale of the forcing. Based on a land-atmosphere analytic continuum model, a numerical land surface model, and field observations we show that high-frequency fluctuations in incoming radiation (with period less than 6 h, for example, due to intermittent clouds) are preferentially partitioned toward ground heat flux. These higher frequencies are concentrated in the 0–1 cm surface soil layer. Subsequently, measurements even at a few centimeters deep in the soil profile miss part of the surface soil heat flux signal. The attenuation of the high-frequency soil heat flux spectrum throughout the soil profile leads to systematic errors in both measurements and modeling, which require a very fine sampling near the soil surface (0–1 cm). Calorimetric measurement techniques introduce a systematic error in the form of an artificial band-pass filter if the temperature probes are not placed at appropriate depths. In addition, the temporal calculation of the change in the heat storage term of the calorimetric method can further distort the reconstruction of the surface soil heat flux signal. A correction methodology is introduced which provides practical application as well as insights into the estimation of surface soil heat flux and the closure of surface energy balance based on field measurements.en_US
dc.language.isoen_US
dc.publisherAmerican Geophysical Union (Wiley platform)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1029/2010wr010203en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceOther univ. web domainen_US
dc.titleSystematic errors in ground heat flux estimation and their correctionen_US
dc.typeArticleen_US
dc.identifier.citationGentine, P., D. Entekhabi, and B. Heusinkveld. “Systematic Errors in Ground Heat Flux Estimation and Their Correction.” Water Resources Research 48, no. 9 (September 2012). © 2012 American Geophysical Unionen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Parsons Laboratory for Environmental Science and Engineeringen_US
dc.contributor.mitauthorEntekhabi, Daraen_US
dc.relation.journalWater Resources Researchen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGentine, P.; Entekhabi, D.; Heusinkveld, B.en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-8362-4761
mit.licensePUBLISHER_POLICYen_US


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