Article
Geosciences, Multidisciplinary
Christopher J. Cardinale, Brian E. J. Rose
Summary: This study quantifies the contribution of changes in tropospheric energy transport and efficiency to Arctic winter surface warming. The efficiency, measured by E-trop, is sensitive to the vertical structure of energy transport and Arctic lower-tropospheric stability. In the RCP8.5 warming scenario, winter-mean energy transport decreases while efficiency increases, resulting in a positive contribution to surface heating.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Lei Zhang, Minghu Ding, Xiangdong Zheng, Junming Chen, Jianping Guo, Lingen Bian
Summary: This study evaluates the errors and representativeness of the Atmospheric Infrared Sounder (AIRS) version 6 (v6) and version 7 (v7) temperature profiles in the Arctic region. The results show that v7 has smaller biases in the troposphere compared to v6, but the profile-averaged root mean square error (RMSE) increased in v7, particularly in winter. The accuracy of AIRS temperature retrieval is primarily influenced by surface type and cloud fraction.
Article
Meteorology & Atmospheric Sciences
Edward Blanchard-Wrigglesworth, Melinda Webster, Linette Boisvert, Chelsea Parker, Christopher Horvat
Summary: Arctic cyclones play a fundamental role in Arctic climate by impacting atmospheric transport and surface fluxes. A recent record low sea level pressure Arctic cyclone formed in East Greenland and moved northeast, resulting in significant changes such as lowest sea level pressure, decreased sea ice area and wind speeds, and large ocean waves impacting sea ice.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Multidisciplinary Sciences
Yucan Peng, Wei Li, Bofei Liu, Weiliang Jin, Joseph Schaadt, Jing Tang, Guangmin Zhou, Guanyang Wang, Jiawei Zhou, Chi Zhang, Yangying Zhu, Wenxiao Huang, Tong Wu, Kenneth E. Goodson, Chris Dames, Ravi Prasher, Shanhui Fan, Yi Cui
Summary: The integrated cooling (i-Cool) textile, designed with a unique functional structure, enhances evaporation ability and sweat evaporation cooling efficiency, while also reducing sweat consumption, showing outstanding performance in heat dissipation and perspiration management.
NATURE COMMUNICATIONS
(2021)
Article
Meteorology & Atmospheric Sciences
Tuomas Naakka, Tiina Nygard, Timo Vihma
Summary: Atmospheric moisture in the circumpolar area south of 50 degrees S is influenced by transient cyclones over the ocean and mean circulation over the continent. Moisture transport from lower latitudes plays a significant role in moisture conditions over the open sea, while radiative cooling on the Antarctic plateau causes a nearly permanent specific humidity inversion layer. Dry air masses with low specific humidity are formed on the plateau and transported downward by katabatic winds, enabling efficient surface evaporation on coastal slopes.
JOURNAL OF CLIMATE
(2021)
Article
Geosciences, Multidisciplinary
Marie-Louise Zeller, Jannis-Michael Huss, Lena Pfister, Karl E. Lapo, Daniela Littmann, Johann Schneider, Alexander Schulz, Christoph K. Thomas
Summary: NYTEFOX is a field experiment conducted at the Ny-Alesund Arctic site to investigate the airflow heterogeneity and transport of temperature, wind, and kinetic energy in the Arctic environment using FODS technique. The experiment yielded a unique meteorological data set, publicly available on Zenodo.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Meteorology & Atmospheric Sciences
Tyler S. Harrington, Jiang Zhu, Christopher B. Skinner
Summary: Summer Arctic water vapor mainly comes from land surfaces, particularly central and eastern Eurasia, impacting Arctic climate significantly. Anomalously large concentrations of land-based vapor can result in anomalous flows in the Laptev Sea region, related to Arctic internal variability.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2021)
Article
Environmental Sciences
Kang Jiang, Zhihua Pan, Feifei Pan, Jialin Wang, Guolin Han, Yu Song, Ziyuan Zhang, Na Huang, Shangqian Ma, Xiao Chen
Summary: This study analyzes the impacts of soil moisture on the surface-air temperature difference (Ts-Ta) using ERA5-land reanalysis data. The findings reveal the significant influence of soil moisture on Ts-Ta, providing valuable insights into regional characteristics of global climate change and land degradation assessment indicators.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
A. Sledd, T. S. L'Ecuyer, J. E. Kay, M. Steele
Summary: As Arctic sea ice retreats, the warming of the upper ocean in response to atmospheric heat fluxes is influenced by the timing of sea ice retreat and the radiative impacts of clouds. Clouds can reflect solar radiation and counteract summer warming, explaining up to 13% more variability in maximum annual sea surface temperatures under modern-day CO2 concentrations. Summer clouds have little direct effect on maximum annual SST under pre-industrial CO2 concentrations, but they become three times more sensitive when CO2 concentrations are four times pre-industrial levels.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Civil
Sofia E. Kjellman, Elizabeth K. Thomas, Anders Schomacker
Summary: High-latitude lakes are sensitive to climate change and can store information about large-scale circulation changes and catchment-integrated processes. The isotopic composition of lakes is influenced by inflow seasonality and evaporation, with each lake varying in sensitivity to these controls over time.
JOURNAL OF HYDROLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
P. M. Craig, D. Ferreira, J. Methven
Summary: This study investigates the sources and contributions of atmospheric moisture in the Atlantic, Indian and Pacific basins using an airmass trajectory model. The results show that the moisture fluxes across basin boundaries are mainly from adjacent basins, while remote sources play a negligible role. The atmosphere imports less moisture into the Atlantic and Indian basins compared to the Pacific, with the Indian basin being the main source for moisture imported to the Pacific.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Konstantina Nakoudi, Christoph Ritter, Iwona S. Stachlewska
Summary: This study explores the long-term properties of cirrus clouds for the first time over an Arctic site, finding that cirrus clouds are generally associated with colder and calmer wind conditions, but their properties do not strongly depend on temperature and wind speed, with wintertime cirrus appearing thicker and with more spherical ice particles. The majority of cirrus at the Arctic site are associated with westerly flow and tend to be optically thicker and consist of more spherical ice particles compared to lower latitudes.
Article
Multidisciplinary Sciences
Mikhail M. Latonin, Leonid P. Bobylev, Igor L. Bashmachnikov, Richard Davy
Summary: This study investigates the characteristics of high-latitude atmospheric meridional energy transport in the Arctic climate system. Analysis of heat fluxes reveals opposing features in the Eastern and Western Hemispheres, with sensible heat transport dominating in the Western Hemisphere and latent heat transport dominating in the Eastern Hemisphere. Additionally, a robust anti-phase dipole pattern is detected in the entire troposphere. The study shows that the Arctic gains internal energy mainly through latent heat transport.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Xi Wang, Jian Liu, Hui Liu, Bingyun Yang
Summary: This study provides a comprehensive analysis of the characteristics and anomalies of low tropospheric inversions in the Arctic, especially during the summer period, based on data from the Atmospheric Infrared Sounder (AIRS) profiles from 2002 to 2020. The results reveal a seasonal variation in the frequency and strength of the inversions, with a peak occurring in July. The high positive anomalies in inversion frequency and strength during summer may serve as a predicted signal for extreme low sea ice events in September. Further research is needed to evaluate the impact of these inversions on sea ice.
Article
Multidisciplinary Sciences
Christopher J. J. Cox, Michael R. R. Gallagher, Matthew D. D. Shupe, P. Ola G. Persson, Amy Solomon, Christopher W. W. Fairall, Thomas Ayers, Byron Blomquist, Ian M. M. Brooks, Dave Costa, Andrey Grachev, Daniel Gottas, Jennifer K. K. Hutchings, Mark Kutchenreiter, Jesse Leach, Sara M. M. Morris, Victor Morris, Jackson Osborn, Sergio Pezoa, Andreas Preusser, Laura D. D. Riihimaki, Taneil Uttal
Summary: The Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) was a yearlong expedition that documented the annual cycle of processes impacting the Arctic atmosphere-ice-ocean system. Measurements of the sea ice's thermodynamic and dynamic evolution were of central importance. This manuscript provides a guide for researchers to access and use the data products acquired during the expedition.