Privacy Policy Disclaimer
John McCormack Receives 2011 GRL Excellence in Reviewing Award
On 6 August 2012, GS&T branch scientist Dr. John McCormack was awarded a 2011 Editors' Citation for Excellence in Refereeing for AGU's flagship journal Geophysical Research Letters (GRL). This award recognizes Dr. McCormack's contributions in maintaining the highest standard of scientific quality in GRL publications through the peer-review process.
...learn more
Figure: Monthly mean temperature differences (K) due to ozone asymmetries with significant values shaded (McCormack et al., 2011): updated 2011.03.11
Longitudinal Ozone Variations Impact the Winter Stratosphere

New results from NRL Space Science Division researcher John McCormack and collaborators demonstrate that stratospheric winter weather is strongly influenced by radiative-dynamical feedbacks involving longitudinal variations in stratospheric ozone heating. This result establishes that both weather and climate models of the lower atmosphere must include a realistic representation of the overlying stratosphere (15-50 km), including accurate representation of ozone heating. The article, published in Geophysical Research Letters (McCormack et al. 2011) contains more details of this work.
Figure: Red dots show location of SHIMMER MCs on 13 June 2007. Colors show NOGAPS-ALPHA saturation ratios at ≈82 km.
updated 2010.02.28
First Global 0-100 km Atmospheric Analyses Reproduce SHIMMER Mesospheric Clouds

A new data assimilation capability in NOGAPS-ALPHA (using NAVDAS), recently developed by scientists in Codes 7640, 7220 and 7530, has been used to generate the first global atmospheric analysis fields that extend from the ground to the edge of space (≈100 km altitude). This was achieved by assimilating high-altitude temperature and water vapor measurements from NASA satellites. Mesospheric saturation ratios at around 83 km computed from these NOGAPS-ALPHA fields have self-consistently reproduced the 3 mid-latitude mesospheric clouds (MCs) observed by SHIMMER over the northwestern United States on 13 June 2007 (see opposite). Results of this work were recently published in the Journal of Atmospheric and Solar-Terrestrial Physics, worked which received a 2009 ARPAD award from NRL.
Department of the Navy
Office of Naval Research
Navy Recruiting
Freedom of Information Act
Certifying official: Dr. Jill P. Dahlburg, Superintendent, Space Science Division
Last Updated: 2008.10.24
webmaster@uap.nrl.navy.mil