SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:uu-500015"
 

Sökning: onr:"swepub:oai:DiVA.org:uu-500015" > Bulk Transfer Coeff...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00007199naa a2200601 4500
001oai:DiVA.org:uu-500015
003SwePub
008230419s2023 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5000152 URI
0247 a https://doi.org/10.1029/2022JD0372192 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Guseva, S.u Univ Koblenz Landau, Inst Environm Sci, Landau, Germany.4 aut
2451 0a Bulk Transfer Coefficients Estimated From Eddy-Covariance Measurements Over Lakes and Reservoirs
264 1b American Geophysical Union (AGU),c 2023
338 a electronic2 rdacarrier
520 a The drag coefficient, Stanton number and Dalton number are of particular importance for estimating the surface turbulent fluxes of momentum, heat and water vapor using bulk parameterization. Although these bulk transfer coefficients have been extensively studied over the past several decades in marine and large-lake environments, there are no studies analyzing their variability for smaller lakes. Here, we evaluated these coefficients through directly measured surface fluxes using the eddy-covariance technique over more than 30 lakes and reservoirs of different sizes and depths. Our analysis showed that the transfer coefficients (adjusted to neutral atmospheric stability) were generally within the range reported in previous studies for large lakes and oceans. All transfer coefficients exhibit a substantial increase at low wind speeds (<3 m s(-1)), which was found to be associated with the presence of gusts and capillary waves (except Dalton number). Stanton number was found to be on average a factor of 1.3 higher than Dalton number, likely affecting the Bowen ratio method. At high wind speeds, the transfer coefficients remained relatively constant at values of 1.6.10(-3), 1.4.10(-3), 1.0.10(-3), respectively. We found that the variability of the transfer coefficients among the lakes could be associated with lake surface area. In flux parameterizations at lake surfaces, it is recommended to consider variations in the drag coefficient and Stanton number due to wind gustiness and capillary wave roughness while Dalton number could be considered as constant at all wind speeds. Plain Language Summary In our study, we investigate the bulk transfer coefficients, which are of particular importance for estimation the turbulent fluxes of momentum, heat and water vapor in the atmospheric surface layer, above lakes and reservoirs. The incorrect representation of the surface fluxes above inland waters can potentially lead to errors in weather and climate prediction models. For the first time we made this synthesis using a compiled data set consisting of existing eddy-covariance flux measurements over 23 lakes and 8 reservoirs. Our results revealed substantial increase of the transfer coefficients at low wind speeds, which is often not taken into account in models. The observed increase in the drag coefficient (momentum transfer coefficient) and Stanton number (heat transfer coefficient) could be associated with the presence of wind gusts and capillary waves. In flux parameterizations at lake surface, it is recommended to consider them for accurate flux representation. Although the bulk transfer coefficients were relatively constant at high wind speeds, we found that the Stanton number systematically exceeds the Dalton number (water vapor transfer coefficient), despite the fact they are typically considered to be equal. This difference may affect the Bowen ratio method and result in biased estimates of lake evaporation.
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Meteorologi och atmosfärforskning0 (SwePub)105082 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Meteorology and Atmospheric Sciences0 (SwePub)105082 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Klimatforskning0 (SwePub)105012 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Climate Research0 (SwePub)105012 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Oceanografi, hydrologi och vattenresurser0 (SwePub)105092 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Oceanography, Hydrology and Water Resources0 (SwePub)105092 hsv//eng
653 a bulk transfer coefficients
653 a eddy-covariance
653 a lakes
653 a reservoirs
7001 a Armani, F.u Univ Fed Parana, Curitiba, Parana, Brazil.4 aut
7001 a Desai, A. R.u Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI USA.4 aut
7001 a Dias, N. L.u Univ Fed Parana, Dept Environm Engn, Curitiba, Parana, Brazil.4 aut
7001 a Friborg, T.u Dept Geosci & Nat Resource Management, Copenhagen, Denmark.4 aut
7001 a Iwata, H.u Shinshu Univ, Dept Environm Sci, Fac Sci, Matsumoto, Nagano, Japan.4 aut
7001 a Jansen, Joachim,d 1989-u Uppsala universitet,Limnologi,Univ Quebec Montreal, Grp Rech Interuniv Limnol, Dept Sci Biol, Montreal, PQ, Canada.4 aut0 (Swepub:uu)joaja327
7001 a Luko, G.u Budapest Univ Technol & Econ, Dept Hydraul & Water Resources Engn, Budapest, Hungary.4 aut
7001 a Mammarella, Iu Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Fac Sci, Helsinki, Finland.4 aut
7001 a Repina, Iu AM Obukhov Inst Atmospher Phys, Moscow, Russia.;Lomonosov Moscow State Univ, Res Comp Ctr, Moscow, Russia.4 aut
7001 a Rutgerson, Anna,d 1971-u Uppsala universitet,Institutionen för geovetenskaper4 aut0 (Swepub:uu)aru27058
7001 a Sachs, T.u GFZ German Res Ctr Geosci, Potsdam, Sweden.4 aut
7001 a Scholz, K.u Univ Innsbruck, Dept Ecol, Innsbruck, Austria.4 aut
7001 a Spank, U.u Tech Univ Dresden, Inst Hydrol & Meteorol, Chair Meteorol, Fac Environm Sci, Tharandt, Germany.4 aut
7001 a Stepanenko, Vu Lomonosov Moscow State Univ, Res Comp Ctr, Moscow, Russia.;Lomonosov Moscow State Univ, Fac Geog, Moscow, Russia.;Moscow Ctr Fundamental & Appl Math, Moscow, Russia.4 aut
7001 a Torma, P.u Budapest Univ Technol & Econ, Dept Hydraul & Water Resources Engn, Budapest, Hungary.4 aut
7001 a Vesala, T.u Univ Helsinki, Inst Atmospher & Earth Syst Res Phys, Fac Sci, Helsinki, Finland.;Univ Helsinki, Inst Atmospher & Earth Syst Res Forest Sci, Fac Agr & Forestry, Helsinki, Finland.4 aut
7001 a Lorke, A.u Univ Koblenz Landau, Inst Environm Sci, Landau, Germany.4 aut
7102 a Univ Koblenz Landau, Inst Environm Sci, Landau, Germany.b Univ Fed Parana, Curitiba, Parana, Brazil.4 org
7730 t Journal of Geophysical Research - Atmospheresd : American Geophysical Union (AGU)g 128:2q 128:2x 2169-897Xx 2169-8996
8564 u https://doi.org/10.1029/2022JD037219y Fulltext
8564 u https://uu.diva-portal.org/smash/get/diva2:1751752/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-500015
8564 8u https://doi.org/10.1029/2022JD037219

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy