A key Earth system science question is the role of atmospheric deposition in supplying vital
nutrients to the phytoplankton that form the base of marine food webs. Industrial and …

Gaseous ammonia (NH 3) is the most abundant alkaline gas in the atmosphere. In addition,
it is a major component of total reactive nitrogen. The largest source of NH 3 emissions is …

The macronutrient phosphorus is thought to limit primary productivity in the oceans on
geological timescales. Although there has been a sustained effort to reconstruct the …

In environmental magnetism, rock and mineral magnetic techniques are used to investigate
the formation, transportation, deposition, and postdepositional alterations of magnetic …

Mathematical modeling of atmospheric composition is a formidable scientific and
computational challenge. This comprehensive presentation of the modeling methods used …

The dust cycle is an integral part of the Earth system. Each year, an estimated 2000 Mt dust
is emitted into the atmosphere, 75% of which is deposited to the land and 25% to the ocean …

Trace elements are actively cycled in seawater, are essential components for marine life,
and are transported to the seafloor where they can become enriched in marine sediments …

This study presents the results of a broad intercomparison of a total of 15 global aerosol
models within the AeroCom project. Each model is compared to observations related to …

We use the Total Ozone Mapping Spectrometer (TOMS) sensor on the Nimbus 7 satellite to
map the global distribution of major atmospheric dust sources with the goal of identifying …

The environmental conditions of Earth, including the climate, are determined by physical,
chemical, biological, and human interactions that transform and transport materials and …