Stiegler, Christian

[["dc.bibliographiccitation.artnumber","012048"],["dc.contributor.author","June, Tania"],["dc.contributor.author","Meijide Orive, Ana"],["dc.contributor.author","Stiegler, Christian"],["dc.contributor.author","Kusuma, Alan Purba"],["dc.contributor.author","Knohl, Alexander"],["dc.date.accessioned","2019-11-18T14:42:11Z"],["dc.date.available","2019-11-18T14:42:11Z"],["dc.date.issued","2018"],["dc.description.abstract","Oil palm plantations are expanding vastly in Jambi, resulted in altered surface roughness and turbulence characteristics, which may influence exchange of heat and mass. Micrometeorological measurements above oil palm canopy were conducted for the period 2013–2015. The oil palms were 12.5 years old, canopy height 13 meters and 1.5 years old canopy height 2.5 m. We analyzed the influence of surface roughness and turbulence strenght on heat (sensible and latent) fluxes by investigating the profiles and gradient of wind speed, and temperature, surface roughness (roughness length, zo, and zero plane displacement, d), and friction velocity u . Fluxes of heat were calculated using profile similarity methods taking into account atmospheric stability calculated using Richardson number Ri and the generalized stability factor ζ. We found that roughness parameters (zo, d, and u ) directly affect turbulence in oil palm canopy and hence heat fluxes; they are affected by canopy height, wind speed and atmospheric stability. There is a negative trend of d towards air temperature above the oil palm canopy, indicating the effect of plant volume and height in lowering air temperature. We propose studying the relation between zero plane displacement d with a remote sensing vegetation index for scaling up this point based analysis."],["dc.identifier.doi","10.1088/1755-1315/149/1/012048"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62652"],["dc.language.iso","en"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | A | A03: Untersuchung von Land-Atmosphäre Austauschprozesse in Landnutzungsänderungs-Systemen"],["dc.relation.conference","The 4th International Symposium on LAPAN-IPB Satellite for Food Security and Environmental Monitoring"],["dc.relation.eventend","2017-10-11"],["dc.relation.eventlocation","Bogor, Indonesia"],["dc.relation.eventstart","2017-10-09"],["dc.relation.ispartof","The 4th International Symposium on LAPAN-IPB Satellite for Food Security and Environmental Monitoring 9–11 October 2017, Bogor, Indonesia"],["dc.relation.issn","1755-1307"],["dc.relation.issn","1755-1315"],["dc.relation.orgunit","Abteilung Bioklimatologie"],["dc.rights","CC BY 3.0"],["dc.subject.gro","Journal Article"],["dc.subject.gro","ABS"],["dc.subject.gro","sfb990_journalarticles"],["dc.subject.gro","sfb990_abs"],["dc.title","The influence of surface roughness and turbulence on heat fluxes from an oil palm plantation in Jambi, Indonesia"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]