Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stirring, mixing, growing: microscale processes change larger scale
  phytoplankton dynamics   The quantitative description of marine systems is constrained by a major
issue of scale separation: most marine biochemical processes occur at
sub-centimeter scales, while the contribution to the Earth's biogeochemical
cycles is expressed at much larger scales, up to the planetary one. In spite of
vastly improved computing power and observational capabilities, the modeling
approach has remained anchored to an old view that sees the microscales as
unable to substantially affect larger ones. The lack of a widespread
theoretical appreciation of the interactions between vastly different scales
has led to the proliferation of numerical models with uncertain predictive
capabilities. We show that an enhanced Lagrangian modeling framework, allowing
for those interactions, can easily tackle puzzling problems such as the
phenology of phytoplankton blooms, or vertical variability in mixed layers.

8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
16
The categories of this paper are: stat