Dániel Topál
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View article: Anatomy of Arctic and Antarctic sea ice lows in an ocean–sea ice model
Anatomy of Arctic and Antarctic sea ice lows in an ocean–sea ice model Open
Sea ice has exhibited a number of record lows in both hemispheres over the past two decades. While the causes of individual sea ice lows have already been investigated extensively, no systematic comparison across events and hemispheres has…
View article: Does increased spatial resolution improve the simulation of Arctic sea ice lows in NEMO4.2-SI3?
Does increased spatial resolution improve the simulation of Arctic sea ice lows in NEMO4.2-SI3? Open
The Arctic total sea ice extent has rapidly declined since the beginning of satellite observations. This decline materialized into record sea ice lows in the summers of 2007 and 2012. Those sea ice lows exhibit an important spatial heterog…
View article: Navigating the transition: Modelling the path for net-zero European building sector
Navigating the transition: Modelling the path for net-zero European building sector Open
Transition towards a net-zero building sector offers substantial potential to mitigate climate change impacts and thus plays a pivotal role in meeting the goals set forth in the Paris Agreement. Stakeholders often use mathematical models t…
View article: Multi‐Decadal Variability of Amundsen Sea Low Controlled by Natural Tropical and Anthropogenic Drivers
Multi‐Decadal Variability of Amundsen Sea Low Controlled by Natural Tropical and Anthropogenic Drivers Open
A crucial factor influencing the mass balance of the West Antarctic Ice Sheet is the Amundsen Sea Low (ASL), a climatological low‐pressure region situated off the West Antarctic coast. However, albeit the deepening of the ASL since the 195…
View article: Role of atmospheric rivers in shaping long term Arctic moisture variability
Role of atmospheric rivers in shaping long term Arctic moisture variability Open
Atmospheric rivers (ARs) reaching high-latitudes in summer contribute to the majority of climatological poleward water vapor transport into the Arctic. This transport has exhibited long term changes over the past decades, which cannot be e…
View article: Intensifying circumpolar winds contributes to reducing winter Antarctic sea ice growth
Intensifying circumpolar winds contributes to reducing winter Antarctic sea ice growth Open
During the austral autumn/winter of 2023 Antarctic sea ice exhibited a pan-Antarctic wide delay in refreezing of roughly a month (peaked in July 2023, hereafter referred to as W23 event). As such it is unprecedented over the satellite era …
View article: Comprehensive Representation of Tropical–Extratropical Teleconnections Obstructed by Tropical Pacific Convection Biases in CMIP6
Comprehensive Representation of Tropical–Extratropical Teleconnections Obstructed by Tropical Pacific Convection Biases in CMIP6 Open
The central role of tropical sea surface temperature (SST) variability in modulating Northern Hemisphere (NH) extratropical climate has long been known. However, the prevailing pathways of teleconnections in observations and the ability of…
View article: Code and Data to support "Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections"
Code and Data to support "Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections" Open
sic.sep.5member.dat contains direct binary data of spatial monthly averaged sea ice concentrations for 1979 January to 2020 December from the CESM2 wind-nudging runs. cism2.exp.smb.01.nc to cism2.exp.smb.05.nc contain netcdf files of annua…
View article: Code and Data to support "Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections"
Code and Data to support "Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections" Open
sic.sep.5member.dat contains direct binary data of spatial monthly averaged sea ice concentrations for 1979 January to 2020 December from the CESM2 wind-nudging runs. cism2.exp.smb.01.nc to cism2.exp.smb.05.nc contain netcdf files of annua…
View article: Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections
Atmospheric circulation-constrained model sensitivity recalibrates Arctic climate projections Open
The Arctic climate system has been suggested to be ‘en route’ to a new state with seasonally ice-free conditions expected within two-three decades under high-emissions scenarios. Here we show the prospect of its delayed emergen…
View article: Large-scale atmospheric circulation driven changes in the Arctic cryosphere and Central-European hydroclimate– with insights from paleoclimate.
Large-scale atmospheric circulation driven changes in the Arctic cryosphere and Central-European hydroclimate– with insights from paleoclimate. Open
Geochemical Research in Hungary ever since 2015 (1 st BSc)
View article: Discrepancies between observations and climate models of large-scale wind-driven Greenland melt influence sea-level rise projections
Discrepancies between observations and climate models of large-scale wind-driven Greenland melt influence sea-level rise projections Open
While climate models project that Greenland ice sheet (GrIS) melt will continue to accelerate with climate change, models exhibit limitations in capturing observed connections between GrIS melt and changes in high-latitude atmospheric circ…
View article: Source Data
Source Data Open
Source Data for Topál et al. (2022) "Discrepancies between observations and climate models of large-scale wind-driven Greenland melt influence sea-level rise projections" article published in Nature Communications (https://doi.org/10.1038/…
View article: Source Data
Source Data Open
Source Data for Topál et al. (2022) "Discrepancies between observations and climate models of large-scale wind-driven Greenland melt influence sea-level rise projections" article published in Nature Communications (https://doi.org/10.1038/…
View article: Abrupt Northern Baffin Bay Autumn Warming and Sea‐Ice Loss Since the Turn of the Twenty‐First Century
Abrupt Northern Baffin Bay Autumn Warming and Sea‐Ice Loss Since the Turn of the Twenty‐First Century Open
A delay in autumn sea ice formation is an important consequence of Arctic Amplification. Baffin Bay is one such region impacted by delayed ice formation, though spatiotemporal analyses to date have not detailed the evolution and drivers of…
View article: Enhanced jet stream waviness induced by suppressed tropical Pacific convection during boreal summer
Enhanced jet stream waviness induced by suppressed tropical Pacific convection during boreal summer Open
<p>Consensus on the cause of recent midlatitude circulation changes toward a wavier manner in the Northern Hemisphere has not been reached, albeit a number of studies collectively suggest that this phenomenon is driven by global warm…
View article: Baffin Bay surface flux perspectives on autumn Greenland blocking
Baffin Bay surface flux perspectives on autumn Greenland blocking Open
<p>The northwest Atlantic Arctic has been recently characterized by rapid environmental change. Examples in the last two-to-three decades include: accelerated retreat of eastern Canadian Arctic glaciers, melt over high-elevation and …
View article: Concurrent Changepoints in Greenland Ice Core δ18O Records and the North Atlantic Oscillation over the Past Millennium
Concurrent Changepoints in Greenland Ice Core δ18O Records and the North Atlantic Oscillation over the Past Millennium Open
Structural changes, or changepoints, coinciding in multiple ice core records over the Greenland Ice Sheet (GrIS) may reflect a widespread response of the GrIS to atmospheric forcing. Thus, to better understand how atmospheric circulation m…
View article: Forced changes in internal variability: an additional uncertainty to deal with
Forced changes in internal variability: an additional uncertainty to deal with Open
<p>Anthropogenic activities contribute to the rising level of greenhouse gas concentrations in the atmosphere at a rate of approximately 1% per year providing a time-dependent external radiative forcing on the climate. In addition to…
View article: Multi-decadal tropical-Arctic atmospheric teleconnections and their influences on Greenland Ice Sheet melt
Multi-decadal tropical-Arctic atmospheric teleconnections and their influences on Greenland Ice Sheet melt Open
<p><span>Despite the contribution of the Greenland Ice Sheet (GrIS) to global sea level rise, the lack of a complete understanding of its driving mechanisms largely constrains future model projections. Brief observational recor…
View article: Refining projected multidecadal hydroclimate uncertainty in East-Central Europe using CMIP5 and single-model large ensemble simulations
Refining projected multidecadal hydroclimate uncertainty in East-Central Europe using CMIP5 and single-model large ensemble simulations Open
Future hydroclimate projections of global climate models for East-Central Europe diverge to a great extent, thus, constrain adaptation strategies. To reach a more comprehensive understanding of this regional spread in model projections, we…
View article: An Internal Atmospheric Process Determining Summertime Arctic Sea Ice Melting in the Next Three Decades: Lessons Learned from Five Large Ensembles and Multiple CMIP5 Climate Simulations
An Internal Atmospheric Process Determining Summertime Arctic Sea Ice Melting in the Next Three Decades: Lessons Learned from Five Large Ensembles and Multiple CMIP5 Climate Simulations Open
Arctic sea ice melting processes in summer due to internal atmospheric variability have recently received considerable attention. A regional barotropic atmospheric process over Greenland and the Arctic Ocean in summer (June–August), featur…
View article: The role of the base period in evaluating teleconnection indices and strengths, and how to eliminate it in the snapshot framework using large ensembles
The role of the base period in evaluating teleconnection indices and strengths, and how to eliminate it in the snapshot framework using large ensembles Open
<p>Different teleconnection index time series are obtained even within a single member of a large ensemble simulation if different base periods are chosen. This also has an effect on the apparent strength of teleconnections. In this …