Peggy Achtert
YOU?
Author Swipe
View article: The Prevalence of Arctic Multilayer Clouds and their Observed and Modelled Characteristics
The Prevalence of Arctic Multilayer Clouds and their Observed and Modelled Characteristics Open
Multilayer clouds (MLCs) are common in the Arctic. With a limited-area setup and 2.5 km horizontal grid spacing, 32 ICON simulations from 22 August to 23 September 2020 were analysed to examine the MLC abundance and characteristics across …
View article: Occurrence of seeding multi-layer clouds in the Arctic from ground-based observations
Occurrence of seeding multi-layer clouds in the Arctic from ground-based observations Open
Studies of Arctic clouds often focus on low-level single-layer clouds (SLCs). Here, we use combined observations of soundings and cloud radar during the MOSAiC, ACSE, and AO2018 research cruises as well as from long-term observations at Ny…
View article: Sensitivities of simulated mixed-phase Arctic multilayer clouds to primary and secondary ice processes
Sensitivities of simulated mixed-phase Arctic multilayer clouds to primary and secondary ice processes Open
Multilayered clouds are frequent in the Arctic, but their detailed analysis is underrepresented. Here, we simulate two cases observed during the 2019/2020 MOSAiC expedition using the ICosahedral Non-hydrostatic (ICON) model to explore the …
View article: Arctic Multilayer Clouds Require Accurate Thermodynamic Profiles and Efficient Primary and Secondary Ice Processes for a Realistic Structure and Composition
Arctic Multilayer Clouds Require Accurate Thermodynamic Profiles and Efficient Primary and Secondary Ice Processes for a Realistic Structure and Composition Open
Multilayered clouds are frequent in the Arctic but their detailed analysis is underrepresented. Here, we simulate two cases observed during the 2019/2020 MOSAiC expedition using the ICosahedral Non-hydrostatic (ICON) model to explore the m…
View article: A cloud-by-cloud approach for studying aerosol–cloud interaction in satellite observations
A cloud-by-cloud approach for studying aerosol–cloud interaction in satellite observations Open
The effective radiative forcing (ERF) due to aerosol–cloud interactions (ACIs) and rapid adjustments (ERFaci) still causes the largest uncertainty in the assessment of climate change. It is understood only with medium confidence and is stu…
View article: Occurrence of multi-layer clouds and ice-crystal seeding in the Arctic observed by Radar and radiosondes
Occurrence of multi-layer clouds and ice-crystal seeding in the Arctic observed by Radar and radiosondes Open
While prior research on Arctic clouds has predominantly focused on single-layer clouds, the presence of multi-layer clouds in the Arctic holds significance. In such complex atmospheric systems, upper-level clouds can exert influence on the…
View article: A cloud-by-cloud approach for studying aerosol-cloud interaction in satellite observations 
A cloud-by-cloud approach for studying aerosol-cloud interaction in satellite observations  Open
Aerosol-cloud interactions are of central importance for understanding climate processes but remains the largest uncertainty associated with climate change. Hence, the effective radiative forcing (ERF) due to ACI and rapid adjustments (ERF…
View article: Comment on egusphere-2023-2773
Comment on egusphere-2023-2773 Open
Abstract. The effective radiative forcing (ERF) due to aerosol-cloud interactions (ACI) and rapid adjustments (ERFaci) still causes the largest uncertainty in the assessment of climate change. It is understood only with me…
View article: Comment on egusphere-2023-2773
Comment on egusphere-2023-2773 Open
Abstract. The effective radiative forcing (ERF) due to aerosol-cloud interactions (ACI) and rapid adjustments (ERFaci) still causes the largest uncertainty in the assessment of climate change. It is understood only with me…
View article: A cloud-by-cloud approach for studying aerosol-cloud interaction in satellite observations
A cloud-by-cloud approach for studying aerosol-cloud interaction in satellite observations Open
The effective radiative forcing (ERF) due to aerosol-cloud interactions (ACI) and rapid adjustments (ERFaci) still causes the largest uncertainty in the assessment of climate change. It is understood only with medium confidence and studied…
View article: Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System
Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System Open
By synthesising remote-sensing measurements made in the central Arctic into a model-gridded Cloudnet cloud product, we evaluate how well the Met Office Unified Model (UM) and the European Centre for Medium-Range Weather Forecasting (ECMWF)…
View article: Occurrence of multilayer clouds and ice-crystal seeding during the Arctic Ocean 2018 and MOSAiC research campaign
Occurrence of multilayer clouds and ice-crystal seeding during the Arctic Ocean 2018 and MOSAiC research campaign Open
Previous research on arctic clouds has focused on single-layer clouds. However, the occurrence of multi-layer clouds in the Arctic is of importance, since in such systems upper clouds can influence the phase of lower clouds. This is the ca…
View article: Mixed-phase Multilayer Clouds in the Arctic: A Simulation Study using ICON
Mixed-phase Multilayer Clouds in the Arctic: A Simulation Study using ICON Open
Multilayer clouds (MLCs), defined as individual, vertically overlapping clouds, are frequently occurring worldwide but have been far less studied than single layered clouds. Earlier studies have suggested a clear abundance of MLCs in the A…
View article: Comment on acp-2021-662
Comment on acp-2021-662 Open
Abstract. By synthesising remote-sensing measurements made in the central Arctic into a model-gridded Cloudnet cloud product, we evaluate how well the Met Office Unified Model (UM) and European Centre for Medium-Range Weat…
View article: Auftreten von Mehrschichtwolken und Eiskristallimpfung in der Arktis
Auftreten von Mehrschichtwolken und Eiskristallimpfung in der Arktis Open
<p>Die Forschung zu arktischen Wolken hat sich bisher schwerpunktmäßig auf einschichtige, mehrphasige Grenzschichtwolken konzentriert. Das Auftreten von mehrschichtigen Wolken in der Arktis ist jedoch auch von gro&a…
View article: Comment on acp-2021-662
Comment on acp-2021-662 Open
By synthesising remote-sensing measurements made in the central Arctic into a model-gridded Cloudnet cloud product, we evaluate how well the Met Office Unified Model (UM) and European Centre for Medium-Range Weather Forecasting Integrated …
View article: Supplementary material to "Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System"
Supplementary material to "Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System" Open
S1Cloudnet S1
View article: Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System
Evaluating Arctic clouds modelled with the Unified Model and Integrated Forecasting System Open
By synthesising remote-sensing measurements made in the central Arctic into a model-gridded Cloudnet cloud product, we evaluate how well the Met Office Unified Model (UM) and European Centre for Medium-Range Weather Forecasting Integrated …
View article: On the best locations for ground-based PSC observations
On the best locations for ground-based PSC observations Open
<p>Spaceborne observations of Polar Stratospheric Clouds (PSCs) with the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite prov…
View article: On the best locations for ground-based polar stratospheric cloud (PSC) observations
On the best locations for ground-based polar stratospheric cloud (PSC) observations Open
Spaceborne observations of polar stratospheric clouds (PSCs) with the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) aboard the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite provide a com…
View article: Meteorological and cloud conditions during the Arctic Ocean 2018 expedition
Meteorological and cloud conditions during the Arctic Ocean 2018 expedition Open
The Arctic Ocean 2018 (AO2018) took place in the central Arctic Ocean in August and September 2018 on the Swedish icebreaker Oden. An extensive suite of instrumentation provided detailed measurements of surface water chemistry and biology,…
View article: Properties of Arctic liquid and mixed-phase clouds from shipborne Cloudnet observations during ACSE 2014
Properties of Arctic liquid and mixed-phase clouds from shipborne Cloudnet observations during ACSE 2014 Open
This study presents Cloudnet retrievals of Arctic clouds from measurements conducted during a 3-month research expedition along the Siberian shelf during summer and autumn 2014. During autumn, we find a strong reduction in the occurrence o…
View article: Location controls the findings of ground-based PSC observations
Location controls the findings of ground-based PSC observations Open
Spaceborne observations of Polar Stratospheric Clouds (PSCs) with the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite provide a com…
View article: reply to all referees
reply to all referees Open
View article: reply to all referees
reply to all referees Open
View article: reply to all referees
reply to all referees Open
View article: Meteorological and cloud conditions during the Arctic Ocean 2018 expedition
Meteorological and cloud conditions during the Arctic Ocean 2018 expedition Open
The Arctic Ocean 2018 (AO2018) expedition took place in the central Arctic Ocean in August and September 2018. An extensive suite of instrumentation provided detailed measurements of surface water chemistry and biology, sea ice and ocean p…
View article: Aerosol and cloud top height information of Envisat MIPAS measurements
Aerosol and cloud top height information of Envisat MIPAS measurements Open
Infrared limb emission instruments have a long history in measuring clouds and aerosol. In particular, the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard ESA's Envisat provides 10 years of altitude-reso…
View article: Evaluating Arctic meteorology modelled with the Unified Model and Integrated Forecasting System
Evaluating Arctic meteorology modelled with the Unified Model and Integrated Forecasting System Open
<p>State-of-the-art numerical models such as the UK Met Office Unified Model and European Centre for Medium-Range Weather Forecasting Integrated Forecasting System are crucial tools for forecasting future Arctic warming. However, the…
View article: Properties of Arctic liquid and mixed phase clouds from ship-borne Cloudnet observations during ACSE 2014
Properties of Arctic liquid and mixed phase clouds from ship-borne Cloudnet observations during ACSE 2014 Open
This study presents Cloudnet retrievals of Arctic clouds from measurements conducted during a three-month research expedition along the Siberian shelf during summer and autumn 2014. During autumn, we find a strong reduction in the occurren…