Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An efficient approach for tracking the aerosol-cloud interactions formed
  by ship emissions using GOES-R satellite imagery and AIS ship tracking
  information   Ship emissions can form linear cloud features, or ship tracks, when
atmospheric water vapor condenses on aerosols in the ship exhaust. These
features are of interest because they are observable and traceable examples of
marine cloud brightening, a mechanism that has been studied as a potential
approach for solar climate intervention. Ship tracks can be observed throughout
the diurnal cycle via space-borne assets like the Advanced Baseline Imagers on
the National Oceanic and Atmospheric Administration Geostationary Operational
Environmental Satellites, the GOES-R series. Due to complex atmospheric
dynamics, it can be difficult to track these aerosol perturbations over space
and time to precisely characterize how long a single emission source can
significantly contribute to indirect radiative forcing. We combine GOES-17
satellite imagery with ship location information to demonstrate two feasible
methods of tracing the trajectories of ship-emitted aerosols after they begin
mixing with low boundary layer clouds in three test cases. The first method
uses the parcel trajectory model HYSPLIT, which was driven by well-studied
physical processes but often could not follow the ship track beyond 8 hours.
The second method uses the image processing technique, optical flow, which
could follow the track throughout its lifetime, but requires high contrast
features for best performance. These approaches show that ship tracks persist
as visible, linear features beyond 9 hr and sometimes longer than 24 hr. This
research sets the stage for a more thorough exploration of the atmospheric
conditions and exhaust compositions that produce ship tracks and factors that
determine track persistence.

31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics