Just a couple of weeks ago, an update to the Giovanni publications list revealed that the number of publications in which Giovanni was utilized had exceeded 100 during the 2009 calendar year. Further searching utilizing Google Scholar, and notification that several papers previously known to be in various stages of the publication process were now in print or online, increased the count of Giovanni publications in 2009 to a robust 66. The current count of publications utilizing Giovanni now stands at 155.
The search process also discovered additional usage of Giovanni in theses, dissertations, and student papers, and several descriptions of the system as a highly useful tool for Earth Science education. An example is this short description from the library Web site of the University of California - Berkeley:
Giovanni Remote Sensing Tool
One of the publications recently added to the list was an interesting case of the past interacting with the present. GES DISC scientist James Acker, who works with Giovanni's oceanographic data interface, conducted his graduate school research on the dissolution of the calcium carbonate mineral aragonite, in the form of the shells of marine organisms called pteropods. In the paper, "Interannual variability of pteropod shell weights in the high-CO2 Southern Ocean" by D. Roberts, W.R. Howard, A.D. Moy, J.L. Roberts, T.W. Trull, S.G. Bray, and R.R. Hopcroft, (Biogeosciences Discussions, 5, 4453-4480, 2008), Giovanni was used to determine if there was any correlation between chlorophyll a concentrations in the Southern Ocean, provided by SeaWiFS data, and an observed declining trend in the shell weights of the pteropod Limacina helicina antarctica. The paper determined that there was no correlation between either chlorophyll a or sea surface temperature, but did find evidence of the effects of ocean acidification, a decrease in carbonate ion concentration in Antarctic waters, potentially contributing to a reduction in the calcification efficiency of the pteropods (the ability of the organisms to form their shells). Two papers co-authored by Acker during his graduate school research were cited in the Roberts et al. paper.
The use of Giovanni in research such as that described in Roberts et al., relevant to current societal and environmental concerns, indicates that Giovanni is an important resource making NASA remote-sensing data available to oceanographers, meteorologists, atmospheric scientists, hydrologists, and researchers in many other disciplines of Earth and environmental science.