eGEOTRACES Electronic Atlas
Reiner Schlitzer, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
The eGEOTRACES electronic atlas contains section plots and animated 3D scenes for a large number of hydrographic parameters as well as trace elements and isotopes measured along GEOTRACES cruise tracks. Users select tracers, cruise tracks and ocean basins in easy and intuitive ways. eGEOTRACES then presents tracer distributions along the selected sections or animated 3D scenes showing tracer distributions along all available sections in the selected basin. Section plots and animations contain the names of the scientists who produced or are responsible for the data. Section pages also contain a link to the original publications associated with the given tracer and cruise. The atlas presently covers the Arctic, Atlantic and Indian Ocean and will be extended when new GEOTRACES data become available. Visit the GEOTRACES home page to learn more about this exciting international marine geochemical programme.
eGEOTRACES is designed to be easy to navigate and to provide overviews of the occurrence of geochemically relevant tracers quickly. The 3D scenes provide geographical context crucial for correctly assessing extent and origin of tracer plumes as well as for inferring processes acting on the tracers and shaping their distribution. The numerous links to other tracers, sections and basins found on section plots and 3D animations allow quick switching between tracers and domains and facilitate comparative studies. In addition to the anticipated usage for marine research, eGEOTRACES and the contained visual material can help in teaching and outreach activities and can also facilitate conveying societal-relevant scientific results to interested non-scientists or decision makers.
The plots and animations were produced using data from the publicly accessible GEOTRACES Intermediate Data Product 2014 (IDP2014) and the Ocean Data View (ODV) and Ocean3D software packages. The tracer distributions were obtained using the DIVA integration in ODV. Note that IDP2014 actually contains more data for more cruises and tracers than are shown in this electronic atlas.
If you use eGEOTRACES plots or animations in your publications or outreach material please cite eGEOTRACES as follows:
Schlitzer, R., eGEOTRACES - Electronic Atlas of GEOTRACES Sections and Animated 3D Scenes, http://www.egeotraces.org, 2014.
This atlas would not have been possible without the successful collaboration of the international marine geochemical community within the GEOTRACES programme and the agreement of the scientists to release their published or unpublished data as part of the GEOTRACES Intermediate Data Product 2014. I express my sincere gratitude to all contributors. Special thanks go to Ed Mawji for integrating the cruise datasets and attaching rich metadata, to Elena Masferrer Dodas for creating the references database and smoothly handling all logistical challenges and to Bob Anderson, Gideon Henderson, Alessandro Tagliabue and Catherine Jeandel who carefully checked prototype versions of this atlas and provided invaluable help in ensuring high quality content and technical functionality. Support by Roland Koppe and Dennis Steinhoff during development and setup of the eGEOTRACES webpages is gratefully acknowledged. I thank the Scientific Committee on Oceanic Research (SCOR) for financial support, through grants from the U.S. National Science Foundation, including grants OCE-0608600, OCE-0938349, and OCE-1243377.