In contrast to terrestrial field dissipation studies, no guidance is available for aquatic outdoor studies.
For PPPs, terrestrial field (dissipation) studies under realistic outdoor conditions are required when the DegT50 exceeds 60 days at 20°C in laboratory studies [2].
In order to use terrestrial field half-lives for exposure modeling following the principles of the EU regulation 1107/2009, normalized biodegradation half-lives are required.
As such, there is a need to shift the nature of astronauts' scientific capabilities to something akin to an experienced terrestrial field scientist.
The Chapman-Ferraro currents and the formation of the magnetopause are associated with the frozen-flux theorem for ideal MHD flows which suggests that the interplanetary magnetic field lines do not connect to the terrestrial field lines.
Terrestrial field dissipation tests under realistic outdoor conditions are triggered in EU regulation 1107/2009 (as well as the outdated EU Directive 91/414) if the laboratory half-life of a parent substance exceeds a given trigger value of 60 days.
Guidance on how to evaluate terrestrial field dissipation studies to obtain biodegradation half-lives is given in Forum for Co-ordination of Pesticide Fate Models and their Use (FOCUS) [59 61] as well as in European Food Safety Authority (EFSA) [62].
In acknowledgment of the crucial role of terrestrial field work in planetary geomorphology and of the BGS tradition, the symposium began with a field trip to the Appalachian Mountains, followed by a dinner talk of recent results from the Mars Surface Laboratory.
We performed a comparative quantitative terrain analysis based on high-resolution stereo remote-sensing data (HRSC-AX and HiRISE) in combination with terrestrial field data and multivariate statistics to determine the relationship of polygon geomorphometry to local environmental conditions.
We show how terrestrial field trials provide new insights on the colonization by life of fresh volcanic flows, and the competition between biotic and abiotic processes on a newly cooling piece of the Earth's crust.
