Anne M. Johansen

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Atmospheric inputs of iron to the open ocean are hypothesized to modulate ocean biogeochemistry. This review presents an integration of available observations of atmospheric iron and iron deposition, and also covers bioavailable iron distributions. Methods for estimating temporal variability in ocean deposition over the recent past are reviewed. Desert dust(More)
The quality of wines can be assessed both from chemical/biological tests and sensory tests (which rely mainly on human experts). Determining which is the subset of tests to be used is a difficult problem. Each test has its own contribution for predicting the quality of wines and, in addition, its own cost. We use our own database, consisting of 32 wine(More)
Mineral aerosol deposition is recognized as the dominant source 4 of iron to the open ocean and the solubility of iron in the dust aerosol is highly 5 variable, with measurements ranging from 0.01-80%. Global models have dif-6 ficulty capturing the observed variations in solubility, and have ignored the 7 solubility dependence on aerosol size. We introduce(More)
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