|Title||The Effect of the Vertical Source Distribution on Scalar Statistics within and above a Forest Canopy|
|Publication Type||Journal Article|
|Year of Publication||2012|
|Authors||Edburg S.L, Stock D., Lamb B.K, Patton E.G|
|Pagination||365 - 382|
|Keywords||VOLATILE ORGANIC COMPOUNDS|
Little is known about in-canopy processes that may alter forest–atmosphere exchanges of trace gases and aerosols. To improve our understanding of in-canopy mixing, we use large-eddy simulation to study the effect of scalar source/sink distributions on scalar concentration moments, ﬂuxes, and correlation coefﬁcients within and above an ideal forest canopy. Scalars are emitted from: (1) the ground, (2) the canopy, and (3) both the ground and the canopy; a scalar is also deposited onto the canopy. All scalar concentration moments, ﬂuxes, and correlation coefﬁcients are affected by the source location/distribution, as is the scalar segregation intensity.We conclude that vertical source/sink distribution has a profound impact on scalar concentration proﬁles, ﬂuxes, correlation coefﬁcient, and scalar segregation.