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<front>
<journal-meta>
<journal-id journal-id-type="publisher">ACP</journal-id>
<journal-title-group>
<journal-title>Atmospheric Chemistry and Physics</journal-title>
<abbrev-journal-title abbrev-type="publisher">ACP</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1680-7324</issn>
<publisher><publisher-name>Copernicus GmbH</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acp-9-7131-2009</article-id>
<title-group>
<article-title>Long-term tropospheric formaldehyde concentrations deduced from ground-based fourier transform solar infrared measurements</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Jones</surname>
<given-names>N. B.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Riedel</surname>
<given-names>K.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Allan</surname>
<given-names>W.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Wood</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Palmer</surname>
<given-names>P. I.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Chance</surname>
<given-names>K.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Notholt</surname>
<given-names>J.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Department of Chemistry, University of Wollongong, NSW 2522, Australia</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>National Institute of Water and Atmospheric Research, Wellington, New Zealand</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>School of GeoSciences, University of Edinburgh, UK</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>Institute of Environmental Physics University of Bremen, Bremen, Germany</addr-line>
</aff>
<pub-date pub-type="epub">
<day>24</day>
<month>09</month>
<year>2009</year>
</pub-date>
<volume>9</volume>
<issue>18</issue>
<fpage>7131</fpage>
<lpage>7142</lpage>
<permissions>
<license xlink:type="simple">
<license-p>This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.atmos-chem-phys.net/9/7131/2009/acp-9-7131-2009.html">This article is available from http://www.atmos-chem-phys.net/9/7131/2009/acp-9-7131-2009.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/9/7131/2009/acp-9-7131-2009.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/9/7131/2009/acp-9-7131-2009.pdf</self-uri>
<abstract>
<p>We report a 13-year (1992–2005) dataset of total column measurements of
formaldehyde (HCHO) over Lauder, New Zealand, inferred from solar infrared
spectra measured using a high-resolution Fourier Transform Spectrometer
(FTS). Ambient HCHO concentrations at this rural location are often close to
levels typical of remote marine environments (&amp;lt;250 ppt), which are close
to the detection limit using standard techniques. Consequently we develop a
new method that successfully produces HCHO columns with sufficient
sensitivity throughout the whole season. HCHO columns over Lauder have a
strong seasonal cycle (&amp;plusmn;50%), with a mean column of 4.9&amp;times;10&lt;sup&gt;15&lt;/sup&gt; molecules cm&lt;sup&gt;&amp;minus;2&lt;/sup&gt;,
peaking during summer months. A simple box model of
CH&lt;sub&gt;4&lt;/sub&gt; oxidation reproduces the observed broad-scale seasonal cycle, but
significantly underestimates the seasonal peak HCHO ground concentrations
during summer. This suggests the existence of an additional significant
source of HCHO, possibly isoprene that cannot be explained by oxidation of
CH&lt;sub&gt;4&lt;/sub&gt; alone. The ground-based FTS column data compare well with
collocated HCHO column measurements from the Global Ozone Monitoring
Experiment (GOME) satellite instrument during the operational period of GOME
(1996–2001, &lt;i&gt;r&lt;/i&gt;&lt;sup&gt;2&lt;/sup&gt;=0.65, mean bias=10%, &lt;i&gt;n&lt;/i&gt;=48).</p>
</abstract>
<counts><page-count count="12"/></counts>
</article-meta>
</front>
<body/>
<back>
<ref-list>
<title>References</title>
<ref id="ref1">
<label>1</label><mixed-citation publication-type="other" xlink:type="simple"> Bai, J., Baker, B., Liang, B., Greenberg, J., and Guenther, A.: Isoprene and monoterpene emissions from an Inner Mongolia grassland, Atmos. Environ., 40, 5753–5758, 2006. </mixed-citation>
</ref>
<ref id="ref2">
<label>2</label><mixed-citation publication-type="other" xlink:type="simple"> Bertram, T. H., Heckel, A., Richter, A., Burrows, J. P., and Cohen, R. C.: Satellite measurements of daily variations in soil NO&lt;sub&gt;x&lt;/sub&gt; emissions, Geophys. Res. Lett., 32, L24812, doi:10.1029/2005GL024640, 2005. </mixed-citation>
</ref>
<ref id="ref3">
<label>3</label><mixed-citation publication-type="other" xlink:type="simple"> Bey, I., Jacob, D. J., Logan, J. A., and Yantosca, R. M.: Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation, J. Geophys. Res., 106, 23073–23095, 2001. </mixed-citation>
</ref>
<ref id="ref4">
<label>4</label><mixed-citation publication-type="other" xlink:type="simple"> Cantrell, C. A., Davidson, J. A., McDaniel, A. H., Shetter, R. E., and Calvert, J. G.: Temperature-dependent formaldehyde cross sections in the near-ultraviolet spectral region, J. Phys. Chem., 94, 3902–2908, 1990. </mixed-citation>
</ref>
<ref id="ref5">
<label>5</label><mixed-citation publication-type="other" xlink:type="simple"> Carslaw, N., Creasey, D. J., Harrison, D., Heard, D. E., Hunter, M. C., Jacobs, P. J., Jenkin, M. E., Lee, J. D., Lewis, A. C., Pilling, M. J., Saunders, S. M., and Seakins, P. W.: OH and HO&lt;sub&gt;2&lt;/sub&gt; radical chemistry in a forested region of north-western Greece, Atmos. Environ., 35, 4725–4737, 2001. </mixed-citation>
</ref>
<ref id="ref6">
<label>6</label><mixed-citation publication-type="other" xlink:type="simple"> Chance, K., Palmer, P. I., Spurr, R. J. D., Martin, R. V., Kurosu, T. P., and Jacob, D. J.: Satellite observations of formaldehyde over North America from GOME, Geophys. Res. Lett., 27, 3461–3464, 2000. </mixed-citation>
</ref>
<ref id="ref7">
<label>7</label><mixed-citation publication-type="other" xlink:type="simple"> Clough, T. J., Sherlock, R. R., Mautner, M. N., Milligan, D. B., Wilson, P. F., Freeman, C. G., and McEwan, M. J.: Emission of nitrogen oxides and ammonia from varying rates of applied synthetic urine and correlations with soil chemistry, Aust. J. Soil Res., 41, 412–438, 2003. </mixed-citation>
</ref>
<ref id="ref8">
<label>8</label><mixed-citation publication-type="other" xlink:type="simple"> Creasey, D. J., Heard, D. E., and Lee, J. D.: Eastern Atlantic Spring Experiment~1997 (EASE97) 1 Measurements of OH and HO&lt;sub&gt;2&lt;/sub&gt; concentrations at Mace Head, Ireland, J. Geophys. Res., 110(D10), 4091, doi:10.1029/2001JD000892, 2002. </mixed-citation>
</ref>
<ref id="ref9">
<label>9</label><mixed-citation publication-type="other" xlink:type="simple"> Dasgupta, P. K., Dong, S., Hwang, H., Yang, H.-C., and Genfa, Z.: Continuous liquid-phase fluorometry coupled to a diffusion scrubber for the real-time determination of atmospheric formaldehyde and sulfur dioxide, Atmos. Environ., 22, 949–963, 1988. </mixed-citation>
</ref>
<ref id="ref10">
<label>10</label><mixed-citation publication-type="other" xlink:type="simple"> Davidson, E. A. and Kingerlee, W.: A global inventory of nitric oxide emissions from soil, Nutr. Cycl. Agroecosys., 48, 259–260, 1997. </mixed-citation>
</ref>
<ref id="ref11">
<label>11</label><mixed-citation publication-type="other" xlink:type="simple"> De Smedt, I., Müller, J.-F., Stavrakou, T., van der A, R., Eskes, H., and Van Roozendael, M.: Twelve years of global observations of formaldehyde in the troposphere using GOME and SCIAMACHY sensors, Atmos. Chem. Phys., 8, 4947–4963, 2008. </mixed-citation>
</ref>
<ref id="ref12">
<label>12</label><mixed-citation publication-type="other" xlink:type="simple"> Eskes, H. J. and Boersma, K. F.: Averaging kernels for DOAS total-column satellite retrievals, Atmos. Chem. Phys., 3, 1285–1291, 2003. </mixed-citation>
</ref>
<ref id="ref13">
<label>13</label><mixed-citation publication-type="other" xlink:type="simple"> Fried, A., Crawford, J., Olson, J., Walega, J., Potter, W., Wert, B., Jordan, C., Anderson, B., Shetter, R., Lefer, B., Blake, D., Blake, N., Meinardi, S., Heikes, B., O&apos;Sullivan, D., Snow, J., Fuelberg, H., Kiley, C. M., Sandholm, S., Tan, D., Sachse, G., Singh, H., Faloona, I., Harward, C. N., and Carmichael, G. R.: Airborne tunable diode laser measurements of formaldehyde during TRACE-P: Distributions and box model comparisons, J. Geophys. Res.-Atmos., 108(D20), 8798, doi:10.1029/2003JD003451, 2003. </mixed-citation>
</ref>
<ref id="ref14">
<label>14</label><mixed-citation publication-type="other" xlink:type="simple"> Frost, G. J., Fried, A., Lee, Y. N., Wert, B., Henry, B., Drummond, J. R., Evans, M. J., Fehsenfeld, F. C., Goldan, P. D., Holloway, J. S., Hubler, G., Jakoubek, R., Jobson, B. T., Knapp, K., Kuster, W. C., Roberts, J., Rudolph, J., Ryerson, T. B., Stohl, A., Stroud, C., Sueper, D. T., Trainer, M., and Williams, J.: Comparisons of box model calculations and measurements of formaldehyde from the 1997 North Atlantic Regional Experiment, J. Geophys. Res., 107(D8), 4060, doi:10.1029/2001JD000896, 2002. </mixed-citation>
</ref>
<ref id="ref15">
<label>15</label><mixed-citation publication-type="other" xlink:type="simple"> Fung, K. and Grosjean, D.: Determination of nanogram amounts of carbonyls as 2,4-dinitrophenylhydrazones by high performance liquid chromatography, Anal. Chem., 53, 168–171, 1981. </mixed-citation>
</ref>
<ref id="ref16">
<label>16</label><mixed-citation publication-type="other" xlink:type="simple"> Gautrois, M., Brauers, T., Koppmann, R., Rohrer, F., Stein, O., and Rudolph, J.: Seasonal variability and trends of volatile organic compounds in the lower polar troposphere, J. Geophys. Res., 108(D13), 4393, doi:10.1029/2002JD002765, 2003. </mixed-citation>
</ref>
<ref id="ref17">
<label>17</label><mixed-citation publication-type="other" xlink:type="simple"> Gratien, A., Picquet-Varrault, B., Orphal, J., Perraudin, E., Doussin, J.-F., and Flaud, J.-M.: Laboratory intercomparison of the formaldehyde absorption cross sections in the infrared (1660–1820 cm&lt;sup&gt;&amp;minus;1&lt;/sup&gt;) and ultraviolet(300–360 nm) spectral regions, J. Geophys. Res., 112, D05305, doi:10.1029/2006JD007201, 2007. </mixed-citation>
</ref>
<ref id="ref18">
<label>18</label><mixed-citation publication-type="other" xlink:type="simple"> Hak, C., Pundt, I., Trick, S., Kern, C., Platt, U., Dommen, J., Ordóñez, C., Prévôt, A. S. H., Junkermann, W., Astorga-Lloréns, C., Larsen, B. R., Mellqvist, J., Strandberg, A., Yu, Y., Galle, B., Kleffmann, J., Lörzer, J. C., Braathen, G. O., and Volkamer, R.: Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air, Atmos. Chem. Phys., 5, 2881–2900, 2005. </mixed-citation>
</ref>
<ref id="ref19">
<label>19</label><mixed-citation publication-type="other" xlink:type="simple"> Hase, F., Hannigan, J. W., Coffey, M. T., Goldman, A., Hopfner, M., Jones, N. B., Rinsland, C. P., and Wood, S. W.: Intercomparison of retrieval codes used for the analysis of high-resolution, ground-based FTIR measurements, J. Quant. Spectrosc. Ra., 87, 25–52, 2004. </mixed-citation>
</ref>
<ref id="ref20">
<label>20</label><mixed-citation publication-type="other" xlink:type="simple"> Heikes, B., Snow, J., Egli, P., Sullivan, D. O., Crawford, J., Olson, J., Chen, G., Davis, D., Blake, N., and Blake, D.: Formaldehyde over the central Pacific during PEM-Tropics~B, J. Geophys. Res., 106(D23), 32717–32731, doi:10.1029/2001JD900012, 2001. </mixed-citation>
</ref>
<ref id="ref21">
<label>21</label><mixed-citation publication-type="other" xlink:type="simple"> Horowitz, L. W., Liang, J. Y., Gardner, G. M., and Jacob, D. J.: Export of reactive nitrogen from North America during summertime: Sensitivity to hydrocarbon chemistry, J. Geophys. Res., 103, 13451–13476, 1998. </mixed-citation>
</ref>
<ref id="ref22">
<label>22</label><mixed-citation publication-type="other" xlink:type="simple"> Johnston, P. V. and McKenzie, R. L.: Long-path absorption measurements of tropospheric NO&lt;sub&gt;2&lt;/sub&gt; in rural New Zealand, Geophys. Res. Lett., 11, 69–72, 1984. </mixed-citation>
</ref>
<ref id="ref23">
<label>23</label><mixed-citation publication-type="other" xlink:type="simple"> Jones, N. B., Koike, M., Matthews, W. A., and McNamara, B. M.: Southern hemisphere seasonal cycle in total column nitric acid, Geophys. Res. Lett., 21, 593–596, 1994. </mixed-citation>
</ref>
<ref id="ref24">
<label>24</label><mixed-citation publication-type="other" xlink:type="simple"> Jones, N. B., Rinsland, C. P., Liley, J. B., and Rosen, J.: Correlation of aerosol and carbon monoxide at 45 S: evidence of biomass burning emissions, Geophys. Res. Lett., 28, 709–712, 2001. </mixed-citation>
</ref>
<ref id="ref25">
<label>25</label><mixed-citation publication-type="other" xlink:type="simple"> Lee, Y. N., Zhou, X., Kleinman, L., Nunnermacker, L., Springston, S., Daum, P., Newman, L., Keigley, W., Holdren, M., Spicer, C., Young, V., Fu, B., Parrish, D., Holloway, J., Williams, J., Roberts, J., Ryerson, T., and Fehsenfeld, F.: Atmospheric chemistry and distribution of formaldehyde and several multioxygenated carbonyl compounds during the 1995 Nashville&amp;sol; Middle Tennessee Ozone Study, J. Geophys. Res., 103, 22449–22462, doi:10.1029/98JD01251, 1998. </mixed-citation>
</ref>
<ref id="ref26">
<label>26</label><mixed-citation publication-type="other" xlink:type="simple"> Lewis, A. C., Carpenter, L. J., and Pilling, M. J.: Nonmethane hydrocarbons in southern ocean boundary layer air, J. Geophys. Res.-Atmos., 106, 4987–4994, 2001. </mixed-citation>
</ref>
<ref id="ref27">
<label>27</label><mixed-citation publication-type="other" xlink:type="simple"> Lowe, D. C. and Schmidt, U.: Formaldehyde (HCHO) measurements in the nonurban atmosphere, J. Geophys. Res., 88, 10844–10858, 1983. </mixed-citation>
</ref>
<ref id="ref28">
<label>28</label><mixed-citation publication-type="other" xlink:type="simple"> Madronich, S. and Flocke, S.: The role of solar radiation in atmospheric chemistry, in: Handbook of Environmental Chemistry, edited by: Boule, P., Springer-Verlag, Heidelberg, 1–26~pp., 1998. </mixed-citation>
</ref>
<ref id="ref29">
<label>29</label><mixed-citation publication-type="other" xlink:type="simple"> Mahieu, E., Zander, R., Delbouille, L., Demoulin, P., Roland, G., and Servais, C.: Observed trends in total vertical column abundances of atmospheric gases from IR solar spectra recorded at the Jungfraujoch, J. Atmos. Chem., V28, 227–243, 1997. </mixed-citation>
</ref>
<ref id="ref30">
<label>30</label><mixed-citation publication-type="other" xlink:type="simple"> Millet, D. B., Jacob, D. J., Turquety, S., Hudman, R. C., Wu, S., Fried, A., Walega, J., Heikes, B. G., Blake, D. R., Singh, H. B., Anderson, B. E., and Clarke, A. D.: Formaldehyde distribution over North America: Implications for satellite retrievals of formaldehyde columns and isoprene emission, J. Geophys. Res., 111, D24S02, doi:10.1029/2005JD006853, 2006. </mixed-citation>
</ref>
<ref id="ref31">
<label>31</label><mixed-citation publication-type="other" xlink:type="simple"> Milligan, D. B., Wilson, P. F., Freman, C. G., McEwan, M. J., Mautner, M., Clough, T. J., and Sherlock, R. R.: Real time, high-resolution quantitative measurements of multiple soil gas emissions: Selected ion flow tube mass spectrometry, J. Environ. Qual., 31, 515–524, 2002. </mixed-citation>
</ref>
<ref id="ref32">
<label>32</label><mixed-citation publication-type="other" xlink:type="simple"> Notholt, J., Toon, G., Stordal, F., Solberg, S., Schmidbauer, N., Becker, E., Meier, A., and Sen, B.: Seasonal variations of trace gases in the high Arctic at 79&amp;deg; N, J. Geophys. Res., 102, 12855–12861, 1997a. </mixed-citation>
</ref>
<ref id="ref33">
<label>33</label><mixed-citation publication-type="other" xlink:type="simple"> Notholt, J., Toon, G. C., Lehmann, R., Sen, B., and Blavier, J. F.: Comparison of Arctic and Antarctic trace gas column abundances from ground-based Fourier transform infrared spectrometry, J. Geophys. Res., 102, 12863–12870, 1997b. </mixed-citation>
</ref>
<ref id="ref34">
<label>34</label><mixed-citation publication-type="other" xlink:type="simple"> Notholt, J., Toon, G., Jones, N., Griffith, D., and Warneke, T.: Automatic line finding program for atmospheric remote sensing, J. Qant. Spectro. Radia.Trans., 97, 112–125, 2006. </mixed-citation>
</ref>
<ref id="ref35">
<label>35</label><mixed-citation publication-type="other" xlink:type="simple"> Palmer, P. I., Jacob, D. J., Chance, K., Martin, R. V., Spurr, R. J. D., Kurosu, T. P., Bey, I., Yantosca, R., Fiore, A., and Li, Q.: Air mass factor formulation for spectroscopic measurements from satellites: Application to formaldehyde retrievals from the Global Ozone Monitoring Experiment, J. Geophys. Res., 106, 14539–14550, 2001. </mixed-citation>
</ref>
<ref id="ref36">
<label>36</label><mixed-citation publication-type="other" xlink:type="simple"> Palmer, P. I., Jacob, D. J., Fiore, A. M., Martin, R. V., Chance, K., and Kurosu, T. P.: Mapping isoprene emissions over North America using formaldehyde column observations from space, J. Geophys. Res., 108(D6), 4180, doi:10.1029/2002JD002153, 2003. </mixed-citation>
</ref>
<ref id="ref37">
<label>37</label><mixed-citation publication-type="other" xlink:type="simple"> Palmer, P. I., Abbot, D. S., Fu, T. M., Jacob, D. J., Chance, K., Kurosu, T. P., Guenther, A., Wiedinmyer, C., Stanton, J. C., Pilling, M. J., Pressley, S. N., Lamb, B., and Sumner, A. L.: Quantifying the seasonal and interannual variability of North American isoprene emissions using satellite observations of the formaldehyde column, J. Geophys. Res., 111, D12315, doi:10.1029/2005JD006689, 2006. </mixed-citation>
</ref>
<ref id="ref38">
<label>38</label><mixed-citation publication-type="other" xlink:type="simple"> Paton-Walsh, C., Jones, N., Wilson, S., Meier, A., Deutscher, N., Griffith, D., Mitchell, R., and Campbell, S.: Trace gas emissions from biomass burning inferred from aerosol optical depth, Geophys. Res. Lett., 31, L05116, doi:10.1029/2003GL018973, 2004. </mixed-citation>
</ref>
<ref id="ref39">
<label>39</label><mixed-citation publication-type="other" xlink:type="simple"> Paton-Walsh, C., Jones, N. B., Wilson, S. R., Haverd, V., Meier, A., Griffith, D. W. T., and Rinsland, C. P.: Measurements of trace gas emissions from Australian forest fires and correlations with coincident measurements of aerosol optical depth, J. Geophys. Res., 110, D24305, doi:10.1029/2005JD006202, 2005. </mixed-citation>
</ref>
<ref id="ref40">
<label>40</label><mixed-citation publication-type="other" xlink:type="simple"> Perrin, A., Valentin, A., and Daumont, L.: New analysis of the 2 $\nu_4$, $\nu_4+\nu_6$, 2 $\nu_6$, $\nu_3+ \nu_4$, $\nu_3+\nu_6$, $\nu_1$, $\nu_5$, $\nu_2+\nu_4$, 2 $\nu_3$, $\nu_2+\nu_6$ and $\nu_2+\nu_3$ bands of formaldehyde H$_2^12$C$^16$O: Line positions and intensities in the 3.5 μm spectral region, J. Mol. Struct., 780–781, 28–44, 2006. </mixed-citation>
</ref>
<ref id="ref41">
<label>41</label><mixed-citation publication-type="other" xlink:type="simple"> Platt, U., Perner, D., and Pätz, H.: Simultaneous Measurement of Atmospheric CH&lt;sub&gt;2&lt;/sub&gt;O, O&lt;sub&gt;3&lt;/sub&gt;, and NO&lt;sub&gt;2&lt;/sub&gt; by Differential Optical Absorption, J. Geophys. Res., 84, 6329–6335, doi:10.1029/JC084iC10p06329, 1979. </mixed-citation>
</ref>
<ref id="ref42">
<label>42</label><mixed-citation publication-type="other" xlink:type="simple"> Riedel, K., Allan, W., Weller, R., and Schrems, O.: Discrepancies between formaldehyde measurements and methane oxidation model predictions in the Antarctic troposphere: An assessment of other possible formaldehyde sources, J. Geophys. Res., 110, D15308, doi:10.1029/2005JD005859, 2005. </mixed-citation>
</ref>
<ref id="ref43">
<label>43</label><mixed-citation publication-type="other" xlink:type="simple"> Rinsland, C. P., Jones, N. B., Connor, B. J., Logan, J. A., Goldman, A., Murcray, F. J., Stephen, T. M., Pougatchev, N. S., Zander, R., Demoulin, P., and Mahieu, E.: Northern and southern hemisphere ground-based infrared spectroscopic measurements of tropospheric carbon monoxide and ethane, J. Geophys. Res., 103, 28197–28218, 1998. </mixed-citation>
</ref>
<ref id="ref44">
<label>44</label><mixed-citation publication-type="other" xlink:type="simple"> Rinsland, C. P., Jones, N. B., Connor, B. J., Wood, S. W., Goldman, A., Stephen, T. M., Murcray, F. J., Chiou, L. S., Zander, R., and Mahieu, E.: Multiyear infrared solar spectroscopic measurements of HCN, CO, C&lt;sub&gt;2&lt;/sub&gt;H$_6$, and C&lt;sub&gt;2&lt;/sub&gt;H&lt;sub&gt;2&lt;/sub&gt; tropospheric columns above Lauder, New Zealand (45&amp;deg; S latitude), J. Geophys. Res., 107(D14), 4185, doi:10.1029/2001JD001150, 2002. </mixed-citation>
</ref>
<ref id="ref45">
<label>45</label><mixed-citation publication-type="other" xlink:type="simple"> Rodgers, C. D.: Inverse Methods for Atmospheric Sounding, Series on Atmospheric, Oceanic and Panetary Optics, edited by: Taylor, F. W., World Scientific, London, 238~pp., 2000. </mixed-citation>
</ref>
<ref id="ref46">
<label>46</label><mixed-citation publication-type="other" xlink:type="simple"> Rodgers, C. D. and Connor, B. J.: Intercomparison of remote sounding instruments, J. Geophys. Res., 108(D3), 4116, doi:4110.1029/2002JD002299, 2003. </mixed-citation>
</ref>
<ref id="ref47">
<label>47</label><mixed-citation publication-type="other" xlink:type="simple"> Rothman, L. S.: AFGL Atmospheric Absorption Line Parameters Compilation: 1980 version, Appl. Optics, 20, 791, 1981. </mixed-citation>
</ref>
<ref id="ref48">
<label>48</label><mixed-citation publication-type="other" xlink:type="simple"> Rothman, L. S., Jacquemart, D., Barbe, A., Chris Benner, D., Birk, M., Brown, L. R., Carleer, M. R., Chackerian, J. C., Chance, K., Coudert, L. H., Dana, V., Devi, V. M., Flaud, J. M., Gamache, R. R., Goldman, A., Hartmann, J. M., Jucks, K. W., Maki, A. G., Mandin, J. Y., Massie, S. T., Orphal, J., Perrin, A., Rinsland, C. P., Smith, M. A. H., Tennyson, J., Tolchenov, R. N., Toth, R. A., Vander Auwera, J., Varanasi, P., and Wagner, G.: The HITRAN~2004 molecular spectroscopic database, J. Quant. Spectrosc. Ra., 96, 139–204, 2005. </mixed-citation>
</ref>
<ref id="ref49">
<label>49</label><mixed-citation publication-type="other" xlink:type="simple"> Saunders, S. M., Jenkin, M. E., Derwent, R. G., and Pilling, M. J.: Protocol for the development of the Master Chemical Mechanism, MCM~v3 (Part~A): tropospheric degradation of non-aromatic volatile organic compounds, Atmos. Chem. Phys., 3, 161–180, 2003. </mixed-citation>
</ref>
<ref id="ref50">
<label>50</label><mixed-citation publication-type="other" xlink:type="simple"> Shim, C., Wang, Y., Choi, Y., Palmer, P. I., Abbot, D. S., and Chance, K.: Constraining global isoprene emissions with Global Ozone Monitoring Experiment (GOME) formaldehyde column measurements, J. Geophys. Res., 110, D24301, doi:10.029/2004JD005629, 2005. </mixed-citation>
</ref>
<ref id="ref51">
<label>51</label><mixed-citation publication-type="other" xlink:type="simple"> Singh, H., Chen, Y., Staudt, A., Jacob, D., Blake, D., Heikes, B., and Snow, J.: Evidence from the Pacific troposphere for large global sources of oxygenated organic compounds, Nature, 410, 1078–1081, 2001. </mixed-citation>
</ref>
<ref id="ref52">
<label>52</label><mixed-citation publication-type="other" xlink:type="simple"> Stavrakou, T., Müller, J.-F., De Smedt, I., Van Roozendael, M., van der Werf, G. R., Giglio, L., and Guenther, A.: Evaluating the performance of pyrogenic and biogenic emission inventories against one decade of space-based formaldehyde columns, Atmos. Chem. Phys. Discuss., 8, 16981–17036, 2008. </mixed-citation>
</ref>
<ref id="ref53">
<label>53</label><mixed-citation publication-type="other" xlink:type="simple"> Stevens, P., Mather, J., Brune, W., Eisele, F., Tanner, D., Jefferson, A., Cantrell, C., Shetter, R., Sewall, S., Fried, A., Henry, B., Williams, E., Baumann, K., Goldan, P., and Kuster, W.: HO&lt;sub&gt;2&lt;/sub&gt;/OH and RO&lt;sub&gt;2&lt;/sub&gt;/HO&lt;sub&gt;2&lt;/sub&gt; ratios during the Tropospheric OH Photochemistry Experiment: Measurement and theory, J. Geophys. Res., 102, 6379–6391, doi:10.1029/96JD01704, 1997. </mixed-citation>
</ref>
<ref id="ref54">
<label>54</label><mixed-citation publication-type="other" xlink:type="simple"> Tejwani, G. D. T. and Yeung, E. S.: Pressure broadened linewidths of formaldehyde, J. Chem. Phys., 66, 4915, 1977. </mixed-citation>
</ref>
<ref id="ref55">
<label>55</label><mixed-citation publication-type="other" xlink:type="simple"> Toon, G. C., Blavier, J. F., Sen, B., Margitan, J. J., Webster, C. R., May, R. D., Fahey, D., Gao, R., Del Negro, L., Proffitt, M., Elkins, J., Romashkin, P. A., Hurst, D. F., Oltmans, S., Atlas, E., Schauffler, S., Flocke, F., Bui, T. P., Stimpfle, R. M., Bonne, G. P., Voss, P. B., and Cohen, R. C.: Comparison of MkIV balloon and ER-2 aircraft measurements of atmospheric trace gases, J. Geophys. Res., 104, 26779–26790, 1999. </mixed-citation>
</ref>
<ref id="ref56">
<label>56</label><mixed-citation publication-type="other" xlink:type="simple"> Veldkamp, E. and Keller, M.: Fertilizer induced nitric oxide emissions from agricultural soils, Nutr. Cycl. Agroecosys., 48, 69–77, 1997. </mixed-citation>
</ref>
<ref id="ref57">
<label>57</label><mixed-citation publication-type="other" xlink:type="simple"> Wagner, V., Glasow, R. V., Fischer, H., and Crutzen, P. J.: Are CH&lt;sub&gt;2&lt;/sub&gt;O measurements in the marine boundary layer suitable for testing the current understanding of CH&lt;sub&gt;4&lt;/sub&gt; photooxidation?: A model study, J. Geophys. Res., 107(D3), doi:10.1029/2001JD000722, 2002. </mixed-citation>
</ref>
<ref id="ref58">
<label>58</label><mixed-citation publication-type="other" xlink:type="simple"> Warneke, C., Gouw, J. A. D., Goldan, P. D., Kuster, W. C., Williams, E. J., Lerner, B. M., Jakoubek, R., Brown, S. S., Stark, H., Aldener, M., Ravishankara, A. R., Roberts, J. M., Marchewka, M., Bertman, S., Sueper, D. T., McKeen, S. A., Meagher, J. F., and Fehsenfeld, F. C.: Comparison of daytime and nighttime oxidation of biogenic and anthropogenic VOCs along the New England coast in summer during New England Air Quality Study 2002, J. Geophys. Res., 109, D10309, doi:10.1029/2003JD004424, 2004. </mixed-citation>
</ref>
<ref id="ref59">
<label>59</label><mixed-citation publication-type="other" xlink:type="simple"> Wert, B. P., Fried, A., Rauenbuehler, S., Walega, J., and Henry, B.: Design and performance of a tunable diode laser absorption spectrometer for airborne formaldehyde measurements, J. Geophys. Res., 108, 4350, doi:10.1029/2002JD002872, 2003. </mixed-citation>
</ref>
</ref-list>
</back>
</article>