Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 14, 1999-2008, 2014
https://doi.org/10.5194/nhess-14-1999-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
06 Aug 2014
Chlorophyll increases off the coasts of Japan after the 2011 tsunami using NASA/MODIS data
E. Sava, B. Edwards, and G. Cervone GeoInformatics and Earth Observation Laboratory, Department of Geography and Institute for CyberScience The Pennsylvania State University, University Park, PA 16802, USA
Abstract. Large chlorophyll anomalies are observed after the 2011 Japanese tsunami using the NASA MODIS instrument onboard the TERRA and AQUA satellites. These anomalies are observed both along the eastern coast of Japan, where the tsunami wave hit with maximum force, and in the deep water surrounding the epicentral region. Although both satellites show agreeing spatio-temporal patterns, larger anomalies are detected using the AQUA satellite. A temporal analysis shows increased chlorophyll concentrations immediately after the tsunami, and higher values are observed for nearly one month before reversing to pre-tsunami levels.

Citation: Sava, E., Edwards, B., and Cervone, G.: Chlorophyll increases off the coasts of Japan after the 2011 tsunami using NASA/MODIS data, Nat. Hazards Earth Syst. Sci., 14, 1999-2008, https://doi.org/10.5194/nhess-14-1999-2014, 2014.
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