Showing papers by "Heidelberg University (Ohio) published in 2012"
TL;DR: After a 20-year absence, severe cyanobacterial blooms have returned to Lake Erie in the last decade, in spite of negligible change in the annual load of total phosphorus (TP), according to medium-spectral Resolution Imaging Spectrometer (MERIS) imagery.
Abstract: After a 20-year absence, severe cyanobacterial blooms have returned to Lake Erie in the last decade, in spite of negligible change in the annual load of total phosphorus (TP). Medium-spectral Resolution Imaging Spectrometer (MERIS) imagery was used to quantify intensity of the cyanobacterial bloom for each year from 2002 to 2011. The blooms peaked in August or later, yet correlate to discharge (Q) and TP loads only for March through June. The influence of the spring TP load appears to have started in the late 1990 s, after Dreissenid mussels colonized the lake, as hindcasts prior to 1998 are inconsistent with the observed blooms. The total spring Q or TP load appears sufficient to predict bloom magnitude, permitting a seasonal forecast prior to the start of the bloom.
360 citations
TL;DR: The explicitly correlated configuration interaction (XCCI) method as mentioned in this paper is a variational method where an R12-explicitly correlated wavefunction that depends on the electron-hole separation is used as the zeroth order reference wavefunction for performing the CI expansion.
24 citations