Scoping the future 1 Short term tools in hand Conceptual particleTEI scavenging model synthesis Fitzsimmons Buck and follow on testing candidate processes in models various ID: 558708
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Slide1
Theme 2 – Abiotic scavenging
Scoping the futureSlide2
1. Short term – tools in hand
Conceptual
particle/TEI
scavenging model
synthesis (Fitzsimmons
, Buck) and
follow on testing
candidate processes in
models (various).
D
escription
of particle (and colloid) dynamics in the multi-element context.
(
Lam, Lerner, Wong, Fitzsimmons).
Comparison of
TEI
Kd
estimates
and residence
times
(
Hayes, Lam, Seth John)
Ligand cycling and scavenging (Buck, Fitzsimmons, Eliot Sherman)
Statistical meta-analysis (
Plancherel
)
Characterizing
strong ligands for Thorium (Hayes and Buck)Slide3
2. Medium term – Recommendations for
remaining GEOTRACES
Vitro-traces to get at
Kds
and other rate information for
all the TEI’s (Seth John
).
Adding Optical techniques –
Transmissometer
, LISST, Underwater Visual Profiler, Optical image bank, etc
.
Slime characterization and
dynamics
Temporal
and geographical variability of scavenging in
nepheloid
layers
Temporal
and geographical variability of scavenging by
dust
Characterization of
preformed endmembers in/near water mass formation
regions
More
use of existing time series stations (e.g. porcupine abyssal plain, BATS,
PAPA(Line P))
as GEOTRACES
sitesSlide4
3. Long term –
what comes
after GEOTRACES?
Ligands
Repeat
Geochemistry
Organic GEOTRACES[Program]
Biogeotraces
[Program]
Application of Satellite observations to TEI’s
Mapping sediment TEI accumulation and sources
Focus on
pollutants [
Program]
Autonomous instruments
[
Program
]
Process studies
(e.g. Microlayer
, Photochemistry, Organic coatings)