Published July 9, 2026 | Version v4

Branch-level emission rates of volatile organic compounds, ozone reactivity, and related data for sweet gum, oak, and loblolly pine during the SOAS campaign (3.6-5.7.2013) at SEARCH-CRT

  • 1. Finnish Meteorological Institute

Description

This dataset contains branch-level emissions emission factors, total ozone reactivity, and related data from sweetgum, white oak, and loblolly pine during the Southeast Oxidant and Aerosol Study (SOAS) campaign at the SEARCH facility near Centerville (SEARCH-CRT) at the Alabama Aquatic Biodiversity Center (AABC) from May to July 2013.

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PID: http://hdl.handle.net/11304/ffe23aef-4f1c-4fb1-9f73-902618f7a54f
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Identifiers

Funding

National Science Foundation

FMI metadata

Parameters
Parameter name: local summer time (UTC-5) in format yyyy-mm-dd HH:MM Parameter description: timestamp Parameter unit: -
Parameter name: tree species measured Parameter description: tree Parameter unit: -
Parameter name: number ID of the branch measured Parameter description: branch # Parameter unit: -
Parameter name: recorded differential ozone signal from the total ozone reactivity monitor (TORM) Parameter description: Δ[O3] Parameter unit: ppbv
Parameter name: ozone wall losses in the reactor (measured by introducing clean/zero air into the reactor) Parameter description: Δ[O3]_wl Parameter unit: ppbv
Parameter name: corrected differential ozone for ozone wall losses Parameter description: Δ[O3]_TORM Parameter unit: ppbv
Parameter name: recorded ozone concentration of air going to TORM’s reactor Parameter description: [O3]_0 Parameter unit: ppbv
Parameter name: calculated ozone reactivity in TORM’s reactor (same as sample’s ozone reactivity, dilution negligible) Parameter description: Rsample Parameter unit: 1/s
Parameter name: measured total flow through TORM’s reactor Parameter description: f Parameter unit: l/min
Parameter name: measured dry mass of the leaves inside the branch enclosure during measurements Parameter description: m_dry Parameter unit: g
Parameter name: total ozone reactivity of the emissions (TOZRE) Parameter description: TOZRE Parameter unit: m^3 / (s^2 g)
Parameter name: uncertainty of differential ozone signal Parameter description: UΔ[O3]TORM Parameter unit: ppbv
Parameter name: upper bound estimate of differential ozone signal Parameter description: Δ[O3]TORM_high Parameter unit: ppbv
Parameter name: lower bound estimate of differential ozone signal Parameter description: Δ[O3]TORM_low Parameter unit: ppbv
Parameter name: photosynthetically active radiation Parameter description: PAR Parameter unit: μmol m^(-2) s^(-1)
Parameter name: ambient temperature (outside the enclosure) Parameter description: Tambient Parameter unit: °C
Parameter name: temperature inside the enclosure Parameter description: Tenclosure Parameter unit: °C
Parameter name: leaf temperature (first sensor) Parameter description: Tleaf_1 Parameter unit: °C
Parameter name: leaf temperature (second sensor) Parameter description: Tleaf_2 Parameter unit: °C
Parameter name: sampling start time in format yyyy-mm-dd HH:MM (local summer time, UTC-5) Parameter description: sampling_starttime Parameter unit: -
Parameter name: sampling duration to collect BVOCs on cartridges Parameter description: t_sampling Parameter unit: min
Parameter name: flow rate for sampling of the BVOCs on cartridges Parameter description: f_sampling Parameter unit: ml/min
Parameter name: sample volume Parameter description: V_sample Parameter unit: ml
Parameter name: mixing ratio in the enclosure for BVOC 1-pentene Parameter description: 1-pentene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-pentane Parameter description: n-pentane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC isoprene Parameter description: isoprene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-hexane Parameter description: n-hexane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC benzene Parameter description: benzene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC i-octane Parameter description: i-octane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-heptane Parameter description: n-heptane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC toluene Parameter description: toluene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-octane Parameter description: n-octane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC styrene Parameter description: styrene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-nonane Parameter description: n-nonane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC 1-methylethylbenzene Parameter description: 1-methylethylbenzene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC α-pinene Parameter description: α-pinene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC camphene Parameter description: camphene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC β-pinene Parameter description: β-pinene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-decane Parameter description: n-decane Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC α-phellandrene Parameter description: α-phellandrene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC limonene Parameter description: limonene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC β-phellandrene Parameter description: β-phellandrene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC trans-β-ocimene Parameter description: trans-β-ocimene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC 1,2,3,4-tetrahydronaphthalene Parameter description: 1,2,3,4-tetrahydronaphthalene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-dodecane Parameter description: n-dodecane Parameter unit: ppbv
Parameter name: mixing ratio in the enclosure for BVOC n-tridecane Parameter description: n-tridecane Parameter unit: ppbv
Parameter name: mixing ratio in the enclosure for BVOC 1,3,5-tris(1-methylethyl)benzene Parameter description: 1,3,5-tris(1-methylethyl)benzene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-tetradecane Parameter description: n-tetradecane Parameter unit: ppbv
Parameter name: mixing ratio in the enclosure for BVOC β-caryophyllene Parameter description: β-caryophyllene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-pentadecane Parameter description: n-pentadecane Parameter unit: ppbv
Parameter name: mixing ratio in the enclosure for BVOC nonyl-benzene Parameter description: nonyl-benzene Parameter unit: pptv
Parameter name: mixing ratio in the enclosure for BVOC n-hexadecane Parameter description: n-hexadecane Parameter unit: ppbv
Parameter name: measured total flow through TORM’s reactor Parameter description: f_TORM Parameter unit: l/min
Parameter name: measured dry mass of the leaves inside the branch enclosure during measurements Parameter description: m_dry Parameter unit: g
Parameter name: emission rate for the BVOC 1-pentene Parameter description: ER1-pentene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC isoprene Parameter description: ERisoprene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC styrene Parameter description: ERstyrene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC α-pinene Parameter description: ERα-pinene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC camphene Parameter description: ERcamphene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC β-pinene Parameter description: ERβ-pinene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC α-phellandrene Parameter description: ERα-phellandrene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC limonene Parameter description: ERlimonene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC β-phellandrene Parameter description: ERβ-phellandrene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC trans-β-ocimene Parameter description: ERtrans-β-ocimene Parameter unit: ng / (g s)
Parameter name: emission rate for the BVOC β-caryophyllene Parameter description: ERβ-caryophyllene Parameter unit: ng / (g s)
Parameter name: calculated ozone reactivity for 1-pentene Parameter description: O3R1-pentene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for isoprene Parameter description: O3Risoprene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for styrene Parameter description: O3Rstyrene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for α-pinene Parameter description: O3Rα-pinene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for camphene Parameter description: O3Rcamphene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for β-pinene Parameter description: O3Rβ-pinene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for α-phellandrene Parameter description: O3Rα-phellandrene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for limonene Parameter description: O3Rlimonene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for β-phellandrene Parameter description: O3Rβ-phellandrene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for trans-β-ocimene Parameter description: O3Rtrans-β-ocimene Parameter unit: 1/s
Parameter name: calculated ozone reactivity for β-caryophyllene Parameter description: O3Rβ-caryophyllene Parameter unit: 1/s
Parameter name: sum of ozone reactivity for identified emissions Parameter description: O3R Parameter unit: 1/s
Parameter name: calculated ozone reactivity of the emissions (COZRE) Parameter description: COZRE Parameter unit: m^3 / (s^2 g)
Parameter name: modelled differential ozone signal from emissions Parameter description: Δ[O3]VOC Parameter unit: ppbv
Parameter name: lower bound of modelled differential ozone signal from emissions Parameter description: Δ[O3]VOC_low Parameter unit: ppbv
Parameter name: upper bound of modelled differential ozone signal from emissions Parameter description: Δ[O3]VOC_high Parameter unit: ppbv
Parameter name: uncertainty of modelled differential ozone signal from emissions Parameter description: UΔ[O3]VOC Parameter unit: ppbv
Parameter name: wall loss corrected differential ozone loss signal from TORM Parameter description: Δ[O3]TORM Parameter unit: ppbv
Parameter name: lower bound estimate of differential ozone signal Parameter description: Δ[O3]TORM_low Parameter unit: ppbv
Parameter name: upper bound estimate of differential ozone signal Parameter description: Δ[O3]TORM_high Parameter unit: ppbv
Parameter name: fraction of unexplained total ozone loss Parameter description: funexplained Parameter unit: -
Parameter name: lower bound fraction of unexplained total ozone loss Parameter description: funexplained_low Parameter unit: -
Parameter name: upper bound fraction of unexplained total ozone loss Parameter description: funexplained_high Parameter unit: -
Parameter name: averaged temperature in the enclosure (Tenclosure) from ‘O3reactitivy’ tab for the BVOC sampling period Parameter description: Tenclosure,avg Parameter unit: °C
Levels
Level: 5 m
Topic category
climatologyMeteorologyAtmosphere

Temporal Coverage

Ranges:

Start date: 2013-06-03
End date: 2013-07-05

Locations

SEARCH facility near Centerville (SEARCH-CRT) at the Alabama Aquatic Biodiversity Center (AABC) Point: