The list of research publications utilizing Giovanni was updated again in July 2010, adding 15 titles to the growing compendium of science conducted with the GES DISC's innovative data analysis and visualization tool. Most of the publications added to the list this time concerned either oceanographic applications or atmospheric phenomena, particularly atmospheric aerosols. One publication, by Nicholas Meskhidze (North Carolina State University) and Athanasios Nenes (Georgia Institute of Technology) concerned both; specifically, how marine aerosols (primarily sea salt, organic compounds, and sulfates derived from dimethyl sulphide) can act as cloud condensation nuclei (CCN), influencing the formation and distribution of clouds over the oceans.
The field of public health continues to benefit from the use of Giovanni. Two papers added to the list concerned human health topics. One paper, by professor Shafiqul Islam and graduate students Ali Akanda and Antarpreet Jutla of Tufts University, examined the connection between river flow and cholera outbreaks in Bangladesh; SeaWiFS data in Giovanni was used to track chlorophyll concentrations, because the bacteria that cause cholera are strongly associated with phytoplankton blooms (cholera bacteria infest copepods that graze on the blooms). Professor Islam is researching a cholera prediction system using NASA satellite data.
A second paper, authored by Julie Wallace, Parameswaran Nair, and Pavlos Kanaroglou of McMaster University in Hamilton, Ontario, examined changes in cell counts found in sputum (mucus and phlegm) during temperature inversions. Temperature inversions occur when a layer of colder air in the atmosphere sinks under warmer air; the warmer air impedes convection, causing a stable air mass -- and also trapping pollutants and causing hazardous air pollution. Temperature inversions occur commonly near mountain ranges and deserts; when they occur near cities and regions adjacent to mountains [famously for the cities of Los Angeles, Denver, and Salt Lake City in the United States, Mexico City, and the Po River valley in Italy], pollution levels may become dangerous. The McMaster researchers correlated increases in neutrophils and macrophages in sputum on days with temperature inversions, which were identified using Atmospheric Infrared Sounder (AIRS) temperature profiles in Giovanni. While no specific pollutants were identified as causing cell count increases, monthly nitrogen dioxide (NO2) concentrations were strongly correlated with monthly total cell counts.
2010 Giovanni publications
2009 Giovanni publications