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Radar data assimilation with WRF 4D-Var. Part II: Comparison with 3D-Var for...
The Weather Research and Forecasting Model (WRF) four-dimensional variational data assimilation (4D-Var) system described in Part I of this study is compared with its...- publication PDF
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Fast and sensitive time-multiplexed gas sensing of multiple lines using a...
High-sensitive multi-species detection around 1550 nm using a modulated grating Y-branch, MG-Y, diode laser tunable between 1529 nm and 1565 nm is presented. The MG-Y diode...- publication PDF
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Synthesis of the land carbon fluxes of the Amazon region between 2010 and 2020
The Amazon is the largest continuous tropical forest in the world and plays a key role in the global carbon cycle. Human-induced disturbances and climate change have impacted...- publication PDF
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Cancellation exponents in helical and non-helical flows
Helicity is a quadratic invariant of the Euler equation in three dimensions. As the energy, when present helicity cascades to smaller scales where it dissipates. However, the...- publication PDF
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The 2023 extreme coastal El Niño: Atmospheric and air-sea coupling mechanisms
In the boreal spring of 2023, an extreme coastal El Nino struck the coastal regions of Peru and Ecuador, causing devastating rainfalls, flooding, and record dengue outbreaks....- publication PDF
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Observation and simulation of the development of equatorial plasma bubbles:...
This study investigates the underlying physics of equatorial plasma bubbles (EPBs) on 11 December 2019, under solar minimum conditions. The Global-scale Observations of the Limb...- publication PDF
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On the possible interaction between internal climate variability and forced...
The global warming hiatus does not necessarily mean a hiatus in anthropogenic greenhouse gas forcing and forced climate change (FCC). Here we show that both Atlantic...- publication PDF
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Origin of oxidized mercury in the summertime free troposphere over the...
We collected mercury observations as part of the Nitrogen, Oxidants, Mercury, and Aerosol Distributions, Sources, and Sinks (NOMADSS) aircraft campaign over the southeastern US...- publication PDF
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A 49 year hindcast of surface winds over the Iberian Peninsula
The use of hindcast climatic data is quite extended for multiple applications. However, this approach needs the support of a validation process to allow its drawbacks and,...- publication PDF
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Simulation of the formation of a solar active region
We present a radiative magnetohydrodynamics simulation of the formation of an active region (AR) on the solar surface. The simulation models the rise of a buoyant magnetic flux...- publication PDF
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A nonlinear rank regression method for ensemble Kalman filter data assimilation
It is possible to describe many variants of ensemble Kalman filters without loss of generality as the impact of a single observation on a single state variable. For most...- publication PDF
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The Brewer-Dobson circulation in CMIP6
The Brewer-Dobson circulation (BDC) is a key feature of the stratosphere that models need to accurately represent in order to simulate surface climate variability and change...- publication PDF
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Climate-ecosystem modelling made easy: The Land Sites Platform
Dynamic Global Vegetation Models (DGVMs) provide a state-of-the-art process-based approach to study the complex interplay between vegetation and its physical environment. For...- publication PDF
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Tropical cyclone cloud-top height and vertical temperature structure...
The accurate determination of tropical cyclone (TC) cloud-top height and its vertical thermal structure using the GPS radio occultation (RO) technique is demonstrated in this...- publication PDF
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Stable boundary layers and subfilter-scale motions
Recent high-resolution large-eddy simulations (LES) of a stable atmospheric boundary layer (SBL) with mesh sizes ğ�'�=(5123,10243,20483) or mesh spacings â–³=(0.78,0.39,0.2) m...- publication PDF
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The sea spray contribution to sensible heat flux
Direct numerical simulations (DNS) of turbulent Couette flow are combined with Lagrangian point-particle tracking to investigate the effects of a dispersed phase on bulk passive...- publication PDF
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Sources of uncertainty in regional and global terrestrial CO2 exchange estimates
The Global Carbon Budget 2018 (GCB2018) estimated by the atmospheric CO2 growth rate, fossil fuel emissions, and modeled (bottom-up) land and ocean fluxes cannot be fully...- publication PDF
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Multi-lidar wind resource mapping in complex terrain
Scanning Doppler lidars have great potential for reducing uncertainty of wind resource estimation in complex terrain. Due to their scanning capabilities, they can measure at...- publication PDF
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The mid-Piacenzian of the North Atlantic Ocean
The Piacenzian Age (Pliocene) represents a past climate interval within which frequency and magnitude of environmental changes during a period of past global warmth can be...- publication PDF
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A simplified parameterization of isoprene-epoxydiol-derived secondary...
Secondary organic aerosol derived from isoprene epoxydiols (IEPOX-SOA) is thought to contribute the dominant fraction of total isoprene SOA, but the current volatility-based...- publication PDF
