Title: EOS: Atmospheric Radiative Transfer in Habitable Worlds with HELIOS.

We present EOS, a procedure for determining the Outgoing Longwave Radiation
(OLR) and top-of-atmosphere (TOA) albedo for a wide range of conditions
expected to be present in the atmospheres of rocky planets with temperate
condition [...]

Authors: Paolo Simonetti, Giovanni Vladilo, Laura Silva, Michele Maris, Stavro L. Ivanovski, Lorenzo Biasiotti, Matej Malik, Jost von Hardenberg

Link: arxiv.org/abs/2110.11702

Title: Simple El Ni\~{n}o prediction scheme using the signature of climate time series.

El Ni\~{n}o is a typical example of a coupled atmosphere-ocean phenomenon,
but it is not yet clear whether it can be described quantitatively by a
correlation between relevant climate events. We present an El Ni\~{n}o
prediction model based on machine learning using the time series of climate
indices. By transforming the [...]

Authors: Nozomi Sugiura, Shinya Kouketsu

Link: arxiv.org/abs/2109.02013

Title: Ocean wave transmission, reflection and absorption by rows of vertical structures along the coastline.

Large arrays of wave-absorbing structures could serve the double objective of
coastal protection against erosion and clean, renewable electrical power
production. In this work, the principle of an artificial canopy is explored,
which consists of vertical structures, arranged [...]

Authors: Alexis M&;rigaud, Benjamin Thiria, Ramiro Godoy-Diana

Link: arxiv.org/abs/2111.14816

Title: ClimART: A Benchmark Dataset for Emulating Atmospheric Radiative Transfer in Weather and Climate Models.

Numerical simulations of Earth's weather and climate require substantial
amounts of computation. This has led to a growing interest in replacing
subroutines that explicitly compute physical processes with approximate machine
learning (ML) [...]

Authors: Salva R&;hling Cachay, Venkatesh Ramesh, Jason N. S. Cole, Howard Barker, David Rolnick

Link: arxiv.org/abs/2111.14671

Title: Quasi-Objective Eddy Visualization from Sparse Drifter Data.

We employ a recently developed single-trajectory Lagrangian diagnostic tool,
the trajectory rotation average $ (\mathrm{\overline{TRA}}) $, to visualize
oceanic vortices (or eddies) from sparse drifter data. We apply the $
\mathrm{\overline{TRA}} $ to three drifter data sets that cover various
oceanographic scales: t [...]

Authors: Alex P. Encinas Bartos, Nikolas O.Aksamit, George Haller

Link: arxiv.org/abs/2111.14117

Title: Multiple Equilibrium States of the Loop Current in the Gulf of Mexico.

It is known that western boundary currents, which encounter a gap in their
supporting boundary, assume two dominant steady states: a loop current state
and a gap leaping state, and that transitions between these states display
hysteresis. However, a question of whether the idealized geometries considered
to date a [...]

Authors: Vitalii A. Sheremet, Arham Amin Kan, Joseph Kuehl

Link: arxiv.org/abs/2111.13810

Title: Definition, detection, and tracking of persistent structures in atmospheric flows.

Long-lived flow patterns in the atmosphere such as weather fronts,
mid-latitude blockings or tropical cyclones often induce extreme weather
conditions. As [...]

Authors: Johannes von Lindheim, Abhishek Harikrishnan, Tom D&;rffel, Rupert Klein, P&;ter Koltai, Natalia Mikula, Annette M&;ller, Peter N&;vir, George Pacey, Robert Polzin, Nikki Vercauteren

Link: arxiv.org/abs/2111.13645

Title: Incorporating the effect of heterogeneous surface heating into a semi-empirical model of the surface energy balance closure.

It was discovered several decades ago that eddy covariance measurements
systematically underestimate sensible and latent heat fluxes, creating an
imbalance in the surface energy budget. Since then, many studies have addressed
this problem and proposed a variety of solu [...]

Authors: Luise Wanner, Marc Calaf, Matthias Mauder

Link: arxiv.org/abs/2111.13234

Title: On moist potential temperatures and their ability to characterize differences in the properties of air parcels.

A framework is introduced to compare moist `potential' temperatures. The
equivalent potential temperature, $\theta_e,$ the liquid water potential
temperature, $\theta_\ell,$ and the entropy potential temperature, $\theta_s$,
are all shown to be potential temperatures, in the sense that they me [...]

Authors: Pascal Marquet, Bjorn Stevens

Link: arxiv.org/abs/2104.01376

Title: Data-Based Models for Hurricane Evolution Prediction: A Deep Learning Approach.

Fast and accurate prediction of hurricane evolution from genesis onwards is
needed to reduce loss of life and enhance community resilience. In this work, a
novel model development methodology for predicting storm trajectory is proposed
based on two classes of Recurrent Neural Networks (RNNs). The RNN models are
trained [...]

Authors: Rikhi Bose, Adam Pintar, Emil Simiu

Link: arxiv.org/abs/2111.12683

Title: Enhanced monitoring of atmospheric methane from space with hierarchical Bayesian inference.

Methane is a strong greenhouse gas, with a higher radiative forcing per unit
mass and shorter atmospheric lifetime than carbon dioxide. The remote sensing
of methane in regions of industrial activity is a key step toward the accurate
[...]

Authors: Clayton Roberts, Oliver Shorttle, Kaisey Mandel, Matthew Jones, Rutger Ijzermans, Bill Hirst, Philip Jonathan

Link: arxiv.org/abs/2111.12486

Title: Model estimates for contribution of natural and anthropogenic CO$_2$ and CH$_4$ emissions into the atmosphere from the territory of Russia, China, USA and Canada to global climate changes in the 21st century.

The contribution of anthropogenic and natural greenhouse gases to the
atmosphere from the territory of Russia, China, USA and Canada to global
climate change under different scenarios of [...]

Authors: S.N. Denisov, A.V. Eliseev, I.I. Mokhov

Link: arxiv.org/abs/2111.11793

Title: Statistical Post-Processing for Gridded Temperature Prediction Using Encoder-Decoder-Based Deep Convolutional Neural Networks.

The Japan Meteorological Agency operates gridded temperature guidance to
predict two-dimensional snowfall amounts and precipitation types, e.g., rain
and snow, because surface temperature is one of the key elements to predict
them. Operational temperature guidance is based on the Kalman filter, [...]

Authors: Atsushi Kudo

Link: arxiv.org/abs/2103.01479

Title: Longitudinally asymmetric stratospheric oscillation on a tidally locked exoplanet.

Using a three-dimensional general circulation model, we show that the
atmospheric dynamics on a tidally locked Earth-like exoplanet, simulated with
the planetary and orbital parameters of Proxima Centauri b, support a
longitudinally asy [...]

Authors: Maureen Cohen, Massimo A. Bollasina, Paul I. Palmer, Denis E. Sergeev, Ian A. Boutle, Nathan J. Mayne, James Manners

Link: arxiv.org/abs/2111.11281

Title: A method for preserving nominally-resolved flow patterns in low-resolution ocean simulations: Constrained dynamics.

Inability of low-resolution ocean models to simulate many important aspects
of the large-scale general circulation is a common problem. In the view of
physics, the main reason for this failure are the missed dynamical effects of
the unresolved small scales of motion on the explicitly reso [...]

Authors: Igor Shevchenko, Pavel Berloff

Link: arxiv.org/abs/2111.10654

Title: MS-nowcasting: Operational Precipitation Nowcasting with Convolutional LSTMs at Microsoft Weather.

We present the encoder-forecaster convolutional long short-term memory (LSTM)
deep-learning model that powers Microsoft Weather's operational precipitation
nowcasting product. This model [...]

Authors: Sylwester Klocek, Haiyu Dong, Matthew Dixon, Panashe Kanengoni, Najeeb Kazmi, Pete Luferenko, Zhongjian Lv, Shikhar Sharma, Jonathan Weyn, Siqi Xiang

Link: arxiv.org/abs/2111.09954

Title: Global temperature goals should determine the time horizons for greenhouse gas emission metrics.

Emission metrics, a crucial tool in setting effective equivalences between
greenhouse gases, currently require a subjective, arbitrary choice of time
horizon. Here, we propose a novel framework that uses a specific temperature
goal to calculate the time horizon that aligns with scenarios achieving that
te [...]

Authors: Sam Abernethy, Robert B. Jackson

Link: arxiv.org/abs/2104.05506

Title: Shortening the runtime using larger time steps for the simulation of marine ecosystem models.

The reduction of computational costs for marine ecosystem models is important
for the investigation and detection of the relevant biogeochemical processes
because such models are computationally expensive. In order to lower these
computational costs by means of larger time steps we investigated the accuracy
of st [...]

Authors: Markus Pfeil, Thomas Slawig

Link: arxiv.org/abs/2111.09122

Title: The dynamic state index with moisture and phase changes.

The dynamic state index (DSI) is a scalar field that combines variational
information on the total energy and enstrophy of a flow field with the second
law of thermodynamics. Its magnitude is a combined local measure for
non-stationarity, diabaticity, and dissipation in the flow, and it has been
shown to prov [...]

Authors: Sabine Hittmeir, Rupert Klein, Annette M&;ller, Peter N&;vir

Link: arxiv.org/abs/2105.06391

Title: An algebraic approach to the spontaneous formation of spherical jets.

The global structure of the atmosphere and the oceans is a continuous source
of intriguing challenges in geophysical fluid dynamics (GFD). Among these, jets
are determinant in the air and water circulation around the Earth. In the last
fifty years, thanks to the development of more and more precise and extensive
observations, it has been possible to s [...]

Authors: Milo Viviani

Link: arxiv.org/abs/2104.11697

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