Catálogo de publicaciones - revistas

<jats:p>To ensure food security, China is racing to develop new cultivars of staple grains that thrive in a warmer world.</jats:p>

<jats:p> Bourassa <jats:italic>et al</jats:italic> . (Reports, 6 July 2012, p. 78) have suggested that deep convection associated with the Asian monsoon played a critical role in transporting sulfur dioxide associated with the Nabro volcanic eruption (13 June 2011) from the upper troposphere (9 to 14 kilometers) into the lower stratosphere. An analysis of the CALIPSO lidar data indicates, however, that the main part of the Nabro volcanic plume was injected directly into the lower stratosphere during the initial eruption well before reaching the Asian monsoon deep convective region. </jats:p>

<jats:p> Bourassa <jats:italic>et al</jats:italic> . (Reports, 6 July 2012, p. 78) report on the 13 June 2011 eruption of the Nabro volcano and satellite observations of stratospheric aerosol that they attribute to troposphere to stratosphere ascent via the Asian monsoon. They claim (citing another source) that the 13 June top injection height was well below the tropopause. We will show that the 13 June Nabro eruption plume was clearly stratospheric and contained both volcanic gases and aerosols. Moreover, we will show height-resolved stratospheric sulfur dioxide and volcanic aerosol enhancements 1 to 3 days old, unaffected by the Asian monsoon, precisely connected to the volcano. The observed stratospheric aerosols and gases are fully explained by the 13 June eruption and do not require a monsoon vehicle. </jats:p>

<jats:p> Fromm <jats:italic>et al</jats:italic> . and Vernier <jats:italic>et al</jats:italic> . suggest that their analyses of satellite measurements indicate that the main part of the Nabro volcanic plume from the eruption on 13 June 2011 was directly injected into the stratosphere. We address these analyses and, in addition, show that both wind trajectories and height-resolved profiles of sulfur dioxide indicate that although the eruption column may have extended higher than the Smithsonian report we highlighted, it was overwhelmingly tropospheric. Additionally, the height-resolved sulfur dioxide profiles provide further convincing evidence for convective transport of volcanic gas to the stratosphere from deep convection associated with the Asian monsoon. </jats:p>

<jats:p> Adding documents, photographs, and notes, the editors have enriched the classic memoir that Watson originally titled <jats:italic>Honest Jim</jats:italic> . </jats:p>

<jats:p> A <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.sciencemag.org/site/feature/data/books/brl6120.xhtml">listing of books received</jats:ext-link> at <jats:italic>Science</jats:italic> during the week ending 01 February 2013. </jats:p>