keywords cloud microphysics, cloud radiation, cloud dynamics, mixed-phase clouds, cloud - boundary layer interactions, Arctic processes, remote sensor retrievals
selected publications chapter Cloud Property Retrievals in the ARM Program. Meteorological Monographs- American Meteorological Society. 2016 The ARM North Slope of Alaska (NSA) Sites. Meteorological Monographs- American Meteorological Society. 2016 conference proceeding Mesoscale Structure of Arctic Cyclones and Their Impacts on Sea Ice: Observations from Past Field Campaigns 2018 Multi-Sensor Identification of Polar Mixed Phase Clouds 2017 Cloud particle size measurements in Arctic clouds using lidar and radar data. 2265-+. 2007 Arctic cloud forcing determined by lidar cloud measurements and broadband surface radiometers. Esa Sp. 573-576. 2004 Ground radar-based ice cloud microphysical retrievals during the crystal-face field campaign. 67-69. 2003 Mixed-phase cloud retrievals using Doppler radar spectra. 645-648. 2003 Turbulence observations in layer clouds. 189-192. 2003 The retrieval of stratus cloud droplet effective radius with cloud radars. Journal of Atmospheric and Oceanic Technology. 835-842. 2000 journal article Observations of fogāaerosol interactions over central Greenland. Journal of Geophysical Research: Atmospheres. 2023 Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign. Atmospheric Measurement Techniques. 2297-2317. 2023 The winter central Arctic surface energy budget: A model evaluation using observations from the MOSAiC campaign. Elementa: Science of the Anthropocene. 2023 Surface impacts and associated mechanisms of a moisture intrusion into the Arctic observed in mid-April 2020 during MOSAiC. Frontiers in Earth Science. 2023 Nudging allows direct evaluation of coupled climate models with in situ observations: a case study from the MOSAiC expedition. Geoscientific Model Development. 1857-1873. 2023 A machine learning correction model of the winter clear-sky temperature bias over the Arctic sea ice in atmospheric reanalyses. Monthly Weather Review. 2023 Low ozone dry deposition rates to sea ice during the MOSAiC field campaign: Implications for the Arctic boundary layer ozone budget. Elementa: Science of the Anthropocene. 2023 Surface temperature comparison of the Arctic winter MOSAiC observations, ERA5 reanalysis, and MODIS satellite retrieval. Elementa: Science of the Anthropocene. 1-17. 2023 Atmospheric and Surface Processes, and Feedback Mechanisms Determining Arctic Amplification: A Review of First Results and Prospects of the (AC)(3) Project. Bulletin of the American Meteorological Society. E208-E242. 2023 A YEAR IN THE CHANGING ARCTIC SEA ICE. Oceanography. 224-225. 2022 Year-round trace gas measurements in the central Arctic during the MOSAiC expedition. Scientific Data. 2022 Annual cycle observations of aerosols capable of ice formation in central Arctic clouds (vol 13, 3537, 2022). Nature Communications. 2022 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. Elementa: Science of the Anthropocene. 2022 Data from the MOSAiC Arctic Ocean drift experiment. Scientific Data. 2022 A central arctic extreme aerosol event triggered by a warm air-mass intrusion. Nature Communications. 2022 Modeling the small-scale deposition of snow onto structured Arctic sea ice during a MOSAiC storm using snowBedFoam 1.0.. Geoscientific Model Development. 6429-6449. 2022 Evaluation of simulations of near-surface variables using the regional climate model CCLM for the MOSAiC winter period. Elementa: Science of the Anthropocene. 2022 The surface longwave cloud radiative effect derived from space lidar observations. Atmospheric Measurement Techniques. 3893-3923. 2022 Annual cycle observations of aerosols capable of ice formation in central Arctic clouds. Nature Communications. 2022 Snowfall and snow accumulation during the MOSAiC winter and spring seasons. The Cryosphere. 2373-2402. 2022 Toward a more realistic representation of surface albedo in NASA CERES-derived surface radiative fluxes: A comparison with the MOSAiC field campaign. Elementa: Science of the Anthropocene. 2022 Sensitivity of the Arctic Sea Ice Cover to the Summer Surface Scattering Layer. Geophysical Research Letters. 2022 The COMBLE Campaign A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks. Bulletin of the American Meteorological Society. E1371-E1389. 2022 High temporal resolution estimates of Arctic snowfall rates emphasizing gauge and radar-based retrievals from the MOSAiC expedition. Elementa: Science of the Anthropocene. 2022 Insights on sources and formation mechanisms of liquid-bearing clouds over MOSAiC examined from a Lagrangian framework. Elementa: Science of the Anthropocene. 2022 Overview of the MOSAiC expedition-Atmosphere INTRODUCTION. Elementa: Science of the Anthropocene. 2022 Overview of the MOSAiC expedition: Physical oceanography INTRODUCTION. Elementa: Science of the Anthropocene. 2022 Overview of the MOSAiC expedition: Snow and sea ice. Elementa: Science of the Anthropocene. 2022 Relating snowfall observations to Greenland ice sheet mass changes: an atmospheric circulation perspective. The Cryosphere. 435-450. 2022 Controls on surface aerosol particle number concentrations and aerosol-limited cloud regimes over the central Greenland Ice Sheet. Atmospheric Chemistry and Physics. 15351-15374. 2021 Liquid Containing Clouds at the North Slope of Alaska Demonstrate Sensitivity to Local Industrial Aerosol Emissions. Geophysical Research Letters. 2021 Unmanned Aerial System measurements of surface albedo for the melting season during the MOSAiC expedition 2021 Assessing the vertical structure of Arctic aerosols using balloon-borne measurements. Atmospheric Chemistry and Physics. 1737-1757. 2021 Assessing the vertical structure of Arctic aerosols using tethered-balloon-borne measurements 2021 Properties of Arctic liquid and mixed-phase clouds from shipborne Cloudnet observations during ACSE 2014. Atmospheric Chemistry and Physics. 14983-15002. 2020 The MOSAiC expedition: A year drifting with the Arctic sea ice 2020 Warm Temperature Extremes Across Greenland Connected to Clouds. Geophysical Research Letters. 2020 Low-level mixed-phase clouds in a complex Arctic environment. Atmospheric Chemistry and Physics. 3459-3481. 2020 Radiative Influence of Horizontally Oriented Ice Crystals over Summit, Greenland. Journal of Geophysical Research: Atmospheres. 12141-12156. 2019 A modelling study of the continuous ice formation in an autumnal Arctic mixed-phase cloud case. Atmospheric Research. 77-85. 2019 A Case Study of Airmass Transformation and Cloud Formation at Summit, Greenland. Journal of the Atmospheric Sciences. 3095-3113. 2019 Atmospheric observations made at Oliktok Point, Alaska, as part of the Profiling at Oliktok Point to Enhance YOPP Experiments (POPEYE) campaign. Earth System Science Data. 1349-1362. 2019 Formation of Arctic Stratocumuli Through Atmospheric Radiative Cooling. Journal of Geophysical Research: Atmospheres. 9644-9664. 2019 Polar Ocean Observations: A Critical Gap in the Observing System and Its Effect on Environmental Predictions From Hours to a Season. Frontiers in Marine Science. 2019 Spatial and temporal variability of snowfall over Greenland from CloudSat observations. Atmospheric Chemistry and Physics. 8101-8121. 2019 Can liquid cloud microphysical processes be used for vertically pointing cloud radar calibration?. Atmospheric Measurement Techniques. 3151-3171. 2019 Supercooled liquid fogs over the central Greenland Ice Sheet. Atmospheric Chemistry and Physics. 7467-7485. 2019 The Arctic Cloud Puzzle: Using ACLOUD/PASCAL Multiplatform Observations to Unravel the Role of Clouds and Aerosol Particles in Arctic Amplification. Bulletin of the American Meteorological Society. 841-872. 2019 Arctic Summer Airmass Transformation, Surface Inversions, and the Surface Energy Budget. Journal of Climate. 769-789. 2019 The relative impact of cloud condensation nuclei and ice nucleating particle concentrations on phase partitioning in Arctic mixed-phase stratocumulus clouds. Atmospheric Chemistry and Physics. 17047-17059. 2018 How Well Are Clouds Simulated over Greenland in Climate Models? Consequences for the Surface Cloud Radiative Effect over the Ice Sheet. Journal of Climate. 9293-9312. 2018 Impact of Atmospheric Circulation on Temperature, Clouds, and Radiation at Summit Station, Greenland, with Self-Organizing Maps. Journal of Climate. 8895-8915. 2018 Role of air-mass transformations in exchange between the Arctic and mid-latitudes. Nature Geoscience. 805-812. 2018 Observed aerosol suppression of cloud ice in low-level Arctic mixed-phase clouds. Atmospheric Chemistry and Physics. 13345-13361. 2018 A BIRD'S-EYE VIEW Development of an Operational ARM Unmanned Aerial Capability for Atmospheric Research in Arctic Alaska. Bulletin of the American Meteorological Society. 1197-1212. 2018 Process-Based Model Evaluation Using Surface Energy Budget Observations in Central Greenland. Journal of Geophysical Research: Atmospheres. 4777-4796. 2018 Precipitation regimes over central Greenland inferred from 5 years of ICECAPS observations. Atmospheric Chemistry and Physics. 4715-4735. 2018 Characteristic Atmospheric Radiative Heating Rate Profiles in Arctic Clouds as Observed at Barrow, Alaska. Journal of Applied Meteorology and Climatology. 953-968. 2018 Improved cloud-phase determination of low-level liquid and mixed-phase clouds by enhanced polarimetric lidar. Atmospheric Measurement Techniques. 835-859. 2018 MULTI-SENSOR MEASUREMENTS OF MIXED-PHASE CLOUDS ABOVE GREENLAND. EPJ Web of Conferences. 2018 PROPERTIES OF HORIZONTALLY ORIENTED ICE CRYSTALS OBSERVED BY POLARIZATION LIDAR OVER SUMMIT, GREENLAND. EPJ Web of Conferences. 2018 The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study. Journal of Geophysical Research: Atmospheres. 9685-9704. 2017 Greenland Clouds Observed in CALIPSO-GOCCP: Comparison with Ground-Based Summit Observations. Journal of Climate. 6065-6083. 2017 Linking atmospheric synoptic transport, cloud phase, surface energy fluxes, and sea-ice growth: observations of midwinter SHEBA conditions. Climate Dynamics. 1341-1364. 2017 Cloud vertical distribution from combined surface and space radar-lidar observations at two Arctic atmospheric observatories. Atmospheric Chemistry and Physics. 5973-5989. 2017 Cloud-Atmospheric Boundary Layer-Surface Interactions on the Greenland Ice Sheet during the July 2012 Extreme Melt Event. Journal of Climate. 3237-3252. 2017 Surface energy budget responses to radiative forcing at Summit, Greenland. The Cryosphere. 497-516. 2017 Atmospheric Conditions during the Arctic Clouds in Summer Experiment (ACSE): Contrasting Open Water and Sea Ice Surfaces during Melt and Freeze-Up Seasons. Journal of Climate. 8721-8744. 2016 Understanding Rapid Changes in Phase Partitioning between Cloud Liquid and Ice in Stratiform Mixed-Phase Clouds: An Arctic Case Study. Monthly Weather Review. 4805-4826. 2016 The Role of Springtime Arctic Clouds in Determining Autumn Sea Ice Extent. Journal of Climate. 6581-6596. 2016 International Arctic Systems for Observing the Atmosphere: An International Polar Year Legacy Consortium. Bulletin of the American Meteorological Society. 1033-1056. 2016 Microwave signatures of ice hydrometeors from ground-based observations above Summit, Greenland. Atmospheric Chemistry and Physics. 4743-4756. 2016 Mountain waves and orographic precipitation in a northern Colorado winter storm. Quarterly Journal of the Royal Meteorological Society. 836-853. 2016 Humidity trends imply increased sensitivity to clouds in a warming Arctic. Nature Communications. 2015 Phase-Specific Characteristics of Wintertime Clouds across a Midlatitude Mountain Range. Monthly Weather Review. 4181-4197. 2015 Cloud Radiative Forcing at Summit, Greenland. Journal of Climate. 6267-6280. 2015 The annual cycle of snowfall at Summit, Greenland. Journal of Geophysical Research: Atmospheres. 6654-6668. 2015 Warm-air advection, air mass transformation and fog causes rapid ice melt. Geophysical Research Letters. 5594-5602. 2015 Deriving Arctic Cloud Microphysics at Barrow, Alaska: Algorithms, Results, and Radiative Closure. Journal of Applied Meteorology and Climatology. 1675-1689. 2015 STATE OF THE CLIMATE IN 2014. Bulletin of the American Meteorological Society. S1-S267. 2015 The role of ice nuclei recycling in the maintenance of cloud ice in Arctic mixed-phase stratocumulus. Atmospheric Chemistry and Physics. 10631-10643. 2015 Downwelling longwave flux over Summit, Greenland, 2010-2012: Analysis of surface-based observations and evaluation of ERA-Interim using wavelets. Journal of Geophysical Research: Atmospheres. 12317-12337. 2014 Continental heat anomalies and the extreme melting of the Greenland ice surface in 2012 and 1889. Journal of Geophysical Research: Atmospheres. 6520-6536. 2014 Cloud Microphysical Properties Retrieved from Downwelling Infrared Radiance Measurements Made at Eureka, Nunavut, Canada (2006-09). Journal of Applied Meteorology and Climatology. 772-791. 2014 Intercomparison of large-eddy simulations of Arctic mixed-phase clouds: Importance of ice size distribution assumptions. Journal of Advances in Modeling Earth Systems. 223-248. 2014 The Sensitivity of Springtime Arctic Mixed-Phase Stratocumulus Clouds to Surface-Layer and Cloud-Top Inversion-Layer Moisture Sources. Journal of the Atmospheric Sciences. 574-595. 2014 Characteristic nature of vertical motions observed in Arctic mixed-phase stratocumulus. Atmospheric Chemistry and Physics. 3461-3478. 2014 Global Hawk dropsonde observations of the Arctic atmosphere obtained during the Winter Storms and Pacific Atmospheric Rivers (WISPAR) field campaign. Atmospheric Measurement Techniques. 3917-3926. 2014 Near-surface meteorology during the Arctic Summer Cloud Ocean Study (ASCOS): evaluation of reanalyses and global climate models. Atmospheric Chemistry and Physics. 427-445. 2014 The Arctic Summer Cloud Ocean Study (ASCOS): overview and experimental design. Atmospheric Chemistry and Physics. 2823-2869. 2014 The thermodynamic structure of summer Arctic stratocumulus and the dynamic coupling to the surface. Atmospheric Chemistry and Physics. 12573-12592. 2014 Enhanced Radar Backscattering due to Oriented Ice Particles at 95 GHz during StormVEx. Journal of Atmospheric and Oceanic Technology. 2336-2351. 2013 Polarization Lidar at Summit, Greenland, for the Detection of Cloud Phase and Particle Orientation. Journal of Atmospheric and Oceanic Technology. 1635-1655. 2013 July 2012 Greenland melt extent enhanced by low-level liquid clouds. Nature. 83-86. 2013 HIGH AND DRY New Observations of Tropospheric and Cloud Properties above the Greenland Ice Sheet. Bulletin of the American Meteorological Society. 169-+. 2013 Surface-based inversions above central Greenland. Journal of Geophysical Research: Atmospheres. 495-506. 2013 Cloud and boundary layer interactions over the Arctic sea ice in late summer. Atmospheric Chemistry and Physics. 9379-9399. 2013 Observations of Ice Crystal Habits with a Scanning Polarimetric W-Band Radar at Slant Linear Depolarization Ratio Mode. Journal of Atmospheric and Oceanic Technology. 989-1008. 2012 Toward understanding of differences in current cloud retrievals of ARM ground-based measurements. Journal of Geophysical Research: Atmospheres. 2012 A Characterization of the Present-Day Arctic Atmosphere in CCSM4. Journal of Climate. 2676-2695. 2012 On the Relationship between Thermodynamic Structure and Cloud Top, and Its Climate Significance in the Arctic. Journal of Climate. 2374-2393. 2012 A FIRE-ACE/SHEBA Case Study of Mixed-Phase Arctic Boundary Layer Clouds: Entrainment Rate Limitations on Rapid Primary Ice Nucleation Processes. Journal of the Atmospheric Sciences. 365-389. 2012 Evaluation of turbulent dissipation rate retrievals from Doppler Cloud Radar. Atmospheric Measurement Techniques. 1375-1385. 2012 Meteorological conditions in the central Arctic summer during the Arctic Summer Cloud Ocean Study (ASCOS). Atmospheric Chemistry and Physics. 6863-6889. 2012 Modelling atmospheric structure, cloud and their response to CCN in the central Arctic: ASCOS case studies. Atmospheric Chemistry and Physics. 3419-3435. 2012 Resilience of persistent Arctic mixed-phase clouds. Nature Geoscience. 11-17. 2012 A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing. Climate Dynamics. 1643-1660. 2011 Modeling of the cloud and radiation processes observed during SHEBA. Atmospheric Research. 911-927. 2011 Clouds at Arctic Atmospheric Observatories. Part I: Occurrence and Macrophysical Properties. Journal of Applied Meteorology and Climatology. 626-644. 2011 Clouds at Arctic Atmospheric Observatories. Part II: Thermodynamic Phase Characteristics. Journal of Applied Meteorology and Climatology. 645-661. 2011 INDIRECT AND SEMI-DIRECT AEROSOL CAMPAIGN The Impact of Arctic Aerosols on Clouds. Bulletin of the American Meteorological Society. 183-201. 2011 Evidence of liquid dependent ice nucleation in high-latitude stratiform clouds from surface remote sensors. Geophysical Research Letters. 2011 An Arctic CCN-limited cloud-aerosol regime. Atmospheric Chemistry and Physics. 165-173. 2011 Cloud condensation nuclei as a modulator of ice processes in Arctic mixed-phase clouds. Atmospheric Chemistry and Physics. 8003-8015. 2011 Moisture and dynamical interactions maintaining decoupled Arctic mixed-phase stratocumulus in the presence of a humidity inversion. Atmospheric Chemistry and Physics. 10127-10148. 2011 Detection of supercooled liquid in mixed-phase clouds using radar Doppler spectra. Journal of Geophysical Research: Atmospheres. 2010 A 10 year climatology of Arctic cloud fraction and radiative forcing at Barrow, Alaska. Journal of Geophysical Research: Atmospheres. 2010 Investigation of Microphysical Parameterizations of Snow and Ice in Arctic Clouds during M-PACE through Model-Observation Comparisons. Monthly Weather Review. 3110-3128. 2009 Arctic Mixed-Phase Stratiform Cloud Properties from Multiple Years of Surface-Based Measurements at Two High-Latitude Locations. Journal of the Atmospheric Sciences. 2874-2887. 2009 Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. I: Single-layer cloud. Quarterly Journal of the Royal Meteorological Society. 979-1002. 2009 Intercomparison of model simulations of mixed-phase clouds observed during the ARM Mixed-Phase Arctic Cloud Experiment. II: Multilayer cloud. Quarterly Journal of the Royal Meteorological Society. 1003-1019. 2009 A FOCUS ON MIXED-PHASE CLOUDS The Status of Ground-Based Observational Methods. Bulletin of the American Meteorological Society. 1549-+. 2008 How well do regional climate models reproduce radiation and clouds in the Arctic? An evaluation of ARCMIP simulations. Journal of Applied Meteorology and Climatology. 2405-2422. 2008 On deriving vertical air motions from cloud radar Doppler spectra. Journal of Atmospheric and Oceanic Technology. 547-557. 2008 Vertical motions in arctic mixed-phase stratiform clouds. Journal of the Atmospheric Sciences. 1304-1322. 2008 Snowfall retrievals using millimeter-wavelength cloud radars. Journal of Applied Meteorology and Climatology. 769-777. 2008 A ground-based multisensor cloud phase classifier. Geophysical Research Letters. 2007 Retrieval of effective radius and liquid water path from ground-based instruments: A case study at Barrow, Alaska. Journal of Geophysical Research: Atmospheres. 2007 An intercomparison of microphysical retrieval algorithms for upper-tropospheric ice clouds. Bulletin of the American Meteorological Society. 191-+. 2007 The mixed-phase Arctic cloud experiment. Bulletin of the American Meteorological Society. 205-221. 2007 Rainfall profiling using atmospheric radiation measurement program vertically pointing 8-mm wavelength radars. Journal of Atmospheric and Oceanic Technology. 1478-1491. 2006 Cloud property estimates from zenith spectral measurements of scattered sunlight between 0.9 and 1.7 mu m. Journal of Geophysical Research: Atmospheres. 2006 Arctic mixed-phase cloud properties derived from surface-based sensors at SHEBA. Journal of the Atmospheric Sciences. 697-711. 2006 Arctic cloud microphysics retrievals from surface-based remote sensors at SHEBA. Journal of Applied Meteorology and Climatology. 1544-1562. 2005 Possible roles of ice nucleation mode and ice nuclei depletion in the extended lifetime of Arctic mixed-phase clouds. Geophysical Research Letters. 2005 A new double-moment microphysics parameterization for application in cloud and climate models. Part II: Single-column modeling of arctic clouds. Journal of the Atmospheric Sciences. 1678-1693. 2005 Lidar and triple-wavelength Doppler radar measurements of the melting layer: A revised model for dark- and brightband phenomena. Journal of Applied Meteorology and Climatology. 301-312. 2005 An arctic springtime mixed-phase cloudy boundary layer observed during SHEBA. Journal of the Atmospheric Sciences. 160-176. 2005 Characteristics and radiative effects of diamond dust over the western Arctic Ocean region. Journal of Climate. 2953-2960. 2004 Deriving mixed-phase cloud properties from Doppler radar spectra. Journal of Atmospheric and Oceanic Technology. 660-670. 2004 Cloud radiative forcing of the Arctic surface: The influence of cloud properties, surface albedo, and solar zenith angle. Journal of Climate. 616-628. 2004 Ice cloud optical thickness and extinction estimates from radar measurements. Journal of Applied Meteorology and Climatology. 1584-1597. 2003 Modeling clouds observed at SHEBA using a bulk microphysics parameterization implemented into a single-column model. Journal of Geophysical Research: Atmospheres. 2003 Analysis of two independent methods for retrieving liquid water profiles in spring and summer Arctic boundary clouds. Journal of Geophysical Research: Atmospheres. 2003 Radiative and microphysical properties of Arctic stratus clouds from multiangle downwelling infrared radiances. Journal of Geophysical Research: Atmospheres. 2002 An annual cycle of Arctic surface cloud forcing at SHEBA. Journal of Geophysical Research: Oceans. 2002 Validation of TOVS Path-P data during SHEBA. Journal of Geophysical Research: Oceans. 2002 An annual cycle of Arctic cloud characteristics observed by radar and lidar at SHEBA. Journal of Geophysical Research: Oceans. 2002 Improving IR cloud phase determination with 20 microns spectral observations. Geophysical Research Letters. 2002 Surface heat budget of the Arctic Ocean. Bulletin of the American Meteorological Society. 255-275. 2002 Analysis of integrated cloud liquid and precipitable water vapor retrievals from microwave radiometers during the Surface Heat Budget of the Arctic Ocean project. Journal of Geophysical Research: Atmospheres. 32019-32030. 2001 Airborne studies of cloud structures over the Arctic Ocean and comparisons with retrievals from ship-based remote sensing measurements. Journal of Geophysical Research: Atmospheres. 15029-15044. 2001 Cloud coverage and height during FIRE ACE derived from AVHRR data. Journal of Geophysical Research. 15215-15232. 2001 Cloud water contents and hydrometeor sizes during the FIRE Arctic Clouds Experiment. Journal of Geophysical Research: Atmospheres. 15015-15028. 2001 Modeling with explicit spectral water and ice microphysics of a two-layer cloud system of altostratus and cirrus observed during the FIRE Arctic Clouds Experiment. Journal of Geophysical Research: Atmospheres. 15099-15112. 2001
geographic focus http://dbpedia.org/page/Greenland Canada Country Germany Country Sweden Country United Kingdom Country