Michael Lonardi
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View article: From the Arctic to Antarctica: Observations of vertical aerosol distribution from tethered balloon measurements
From the Arctic to Antarctica: Observations of vertical aerosol distribution from tethered balloon measurements Open
Vertical profile measurements of aerosol properties in the lower atmosphere still constitute a major observational gap. Focusing on the polar regions, where the planetary boundary layer often forms temperature inversions that inhibit verti…
View article: Overview: quasi-Lagrangian observations of Arctic air mass transformations – introduction and initial results of the HALO–(𝒜 𝒞) <sup>3</sup> aircraft campaign
Overview: quasi-Lagrangian observations of Arctic air mass transformations – introduction and initial results of the HALO–(𝒜 𝒞) <sup>3</sup> aircraft campaign Open
Global warming is amplified in the Arctic. However, numerical models struggle to represent key processes that determine Arctic weather and climate. To collect data that help to constrain the models, the HALO–(𝒜𝒞)3 aircraft campaign was con…
View article: Comment on egusphere-2024-783
Comment on egusphere-2024-783 Open
Abstract. The global warming is amplified in the Arctic. To collect data that help to constrain weather and climate models, which often do not realistically represent the enhanced Arctic warming, the HALO-(AC)³ aircraft campaign was conduc…
View article: Overview: Quasi-Lagrangian observations of Arctic air mass transformations – Introduction and initial results of the HALO–(AC) <sup>3</sup> aircraft campaign
Overview: Quasi-Lagrangian observations of Arctic air mass transformations – Introduction and initial results of the HALO–(AC) <sup>3</sup> aircraft campaign Open
The global warming is amplified in the Arctic. To collect data that help to constrain weather and climate models, which often do not realistically represent the enhanced Arctic warming, the HALO-(AC)³ aircraft campaign was conducted in Mar…
View article: Tethered balloon-borne observations of thermal-infrared irradiance and cooling rate profiles in the Arctic atmospheric boundary layer
Tethered balloon-borne observations of thermal-infrared irradiance and cooling rate profiles in the Arctic atmospheric boundary layer Open
Clouds play an important role in controlling the radiative energy budget of the Arctic atmospheric boundary layer. To quantify the impact of clouds on the radiative heating or cooling of the lower atmosphere and of the surface, vertical pr…
View article: Tethered balloon measurements reveal enhanced aerosol occurrence aloft interacting with Arctic low-level clouds
Tethered balloon measurements reveal enhanced aerosol occurrence aloft interacting with Arctic low-level clouds Open
Low-level clouds in the Arctic affect the surface energy budget and vertical transport of heat and moisture. The limited availability of cloud-droplet-forming aerosol particles strongly impacts cloud properties and lifetime. Vertical parti…
View article: Missing Figure 3
Missing Figure 3 Open
Abstract. Clouds play an important role in controlling the radiative energy budget of the Arctic atmospheric boundary layer. To quantify their impact on diabatic heating or cooling of the atmosphere and of the surface, vertical profile obs…
View article: Tethered balloon-borne observations of thermal-infrared irradiance and cooling rate profiles in the Arctic atmospheric boundary layer
Tethered balloon-borne observations of thermal-infrared irradiance and cooling rate profiles in the Arctic atmospheric boundary layer Open
Clouds play an important role in controlling the radiative energy budget of the Arctic atmospheric boundary layer. To quantify their impact on diabatic heating or cooling of the atmosphere and of the surface, vertical profile observations …
View article: Effects of glacier retreat upon glacier-groundwater coupling and biogeochemistry in Central Svalbard
Effects of glacier retreat upon glacier-groundwater coupling and biogeochemistry in Central Svalbard Open
The hydrology and biogeochemistry of perennial groundwater springs emerging in the forefields of retreating Svalbard glaciers are considered through a single-site, multi-year study at Foxfonna, and a multi-site spatial sampling programme d…
View article: BELUGA TIR radiation profile measurements at MOSAiC and Ny-Alesund
BELUGA TIR radiation profile measurements at MOSAiC and Ny-Alesund Open
A total of 70 profile measurements of thermal-infrared (TIR) radiation were obtained with the Broadband Radiation Package (BP) during balloon ascents with the Balloon-bornE moduLar Utility for profilinG the lower Atmosphere (BELUGA). The d…
View article: BELUGA TIR radiation profile measurements at MOSAiC and Ny-Alesund
BELUGA TIR radiation profile measurements at MOSAiC and Ny-Alesund Open
A total of 70 profile measurements of thermal-infrared (TIR) radiation were obtained with the Broadband Radiation Package (BP) during balloon ascents with the Balloon-bornE moduLar Utility for profilinG the lower Atmosphere (BELUGA). The d…
View article: Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign Open
This study analyzes turbulent energy fluxes in the Arctic atmospheric boundary layer (ABL) using measurements with a small uncrewed aircraft system (sUAS). Turbulent fluxes constitute a major part of the atmospheric energy budget and influ…
View article: The effect of cloud top cooling on the evolution of the Arctic boundary layer observed by balloon-borne measurements
The effect of cloud top cooling on the evolution of the Arctic boundary layer observed by balloon-borne measurements Open
The presence of clouds significantly affects Arctic boundary layer dynamics. However, the accessibility of clouds over the Arctic sea ice for in-situ observations is challenging. Measurements from tethered balloon platforms are one option …
View article: Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC) 3 Project
Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC) 3 Project Open
International audience
View article: CAMP: an instrumented platform for balloon-borne aerosol particle studies in the lower atmosphere
CAMP: an instrumented platform for balloon-borne aerosol particle studies in the lower atmosphere Open
Airborne observations of vertical aerosol particle distributions are crucial for detailed process studies and model improvements. Tethered balloon systems represent a less expensive alternative to aircraft to probe shallow atmospheric boun…
View article: Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC)3 Project
Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC)3 Project Open
Mechanisms behind the phenomenon of Arctic amplification are widely discussed. To contribute to this debate, the (AC) 3 project was established in 2016 ( www.ac3-tr.de/ ). It comprises modeling and data analysis efforts as well as observat…
View article: CAMP: a balloon-borne platform for aerosol particle studies in the lower atmosphere
CAMP: a balloon-borne platform for aerosol particle studies in the lower atmosphere Open
Airborne observations of vertical aerosol particle distributions are crucial for detailed process studies and model improvements. Tethered balloon systems represent a less expensive alternative to aircraft to capture shallow atmospheric bo…
View article: Tethered balloon-borne profile measurements of atmospheric properties in the cloudy atmospheric boundary layer over the Arctic sea ice during MOSAiC: Overview and first results
Tethered balloon-borne profile measurements of atmospheric properties in the cloudy atmospheric boundary layer over the Arctic sea ice during MOSAiC: Overview and first results Open
The tethered balloon-borne measurement system BELUGA (Balloon-bornE moduLar Utility for profilinG the lower Atmosphere) was deployed over the Arctic sea ice for 4 weeks in summer 2020 as part of the Multidisciplinary drifting Observatory f…
View article: Overview of the MOSAiC expedition: Atmosphere
Overview of the MOSAiC expedition: Atmosphere Open
With the Arctic rapidly changing, the needs to observe, understand, and model the changes are essential. To support these needs, an annual cycle of observations of atmospheric properties, processes, and interactions were made while driftin…