Article
Meteorology & Atmospheric Sciences
Sean Horvath, Julienne Stroeve, Balaji Rajagopalan, Alexandra Jahn
Summary: The timing of melt onset in the Arctic is crucial for the evolution of sea ice throughout Spring, Summer, and Autumn. Early melt onset is mainly caused by increased downwelling longwave radiation due to higher moisture levels in the atmosphere. The dominant moisture transport patterns from lower latitudes to the Arctic are influenced by a broad low pressure region over Siberia and a high pressure over northern North America and Greenland.
Article
Meteorology & Atmospheric Sciences
Mingju Hao, Yanluan Lin, Yong Luo, Reshmita Nath, Zongci Zhao
Summary: The study indicates that atmospheric moisture transport significantly affects Arctic temperature, with changes in longwave and latent heating playing a key role in temperature variations.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Joseph P. Clark, Steven B. Feldstein, Sukyoung Lee
Summary: Trends in moist static energy transport were investigated using four reanalysis datasets from 1980 to 2018. The datasets showed agreement in eddy MSE transport trends and latitudinal structure of MSE trends, but varied widely in the trend of climatological zonal mean MSE flux. Further analysis revealed that dry static energy increases dominate MSE trends at all latitudes, contradicting the prediction of latent energy increases dominating in the tropics. This calls for further investigation of reanalysis MSE transport.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Nicole A. Loeb, Alex Crawford, Julienne C. Stroeve, John Hanesiak
Summary: The study compares three recent atmospheric reanalyses to surface precipitation observations in the Eastern Canadian Arctic and Greenland from 1980 to 2016. While the reanalyses struggled to match observed accumulations from individual events, they were able to match the observed seasonality of precipitation extremes. ERA-5 showed slightly higher correlations and lower biases compared to MERRA-2 and CFSR, but all three products had similar performance in general.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Editorial Material
Geosciences, Multidisciplinary
Joseph P. Clark, Steven B. Feldstein, Sukyoung Lee
Summary: This study examines whether the reanalysis moist static energy (MSE) transport trends are consistent with the downgradient transport trends found in climate models. It is found that the MSE transport trends depend on the reanalysis dataset, but this dependence is reduced when a barotropic mass flux correction is applied. However, even after the correction, the reanalysis MSE transport trends are not consistent with the models' predictions.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Water Resources
Vojtech Bliznak, Lucie Pokorna, Zuzana Rulfova
Summary: This study evaluates the ability of three modern reanalyzes with different spatial resolutions and assimilation rates to reproduce precipitation in Central Europe. The results show that all reanalyzes generally agree well with the observations in terms of daily precipitation totals. However, a detailed analysis of climatological indices reveals an overestimation of precipitation sums and the number of wet days, as well as an underestimation of high precipitation on monthly or seasonal scales. Mescan-Surfex seems to be the most accurate reanalysis, except for the years with low precipitation in southern Bohemia. The largest differences between radar and reanalysis precipitation characteristics are found in the summer months. These findings can be used for further hydrological modeling applications.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Meteorology & Atmospheric Sciences
Xiaowei Zou, Zhao Li, Diyi Yang, Weijun Sun, Minghu Ding, Weigang Liu, Zhaoliang Zeng, Ze Wang, Shuang Jin, Hongmei Ma
Summary: In recent years, increased moisture in the Arctic and subarctic regions indicates wetting conditions in the Arctic, with poleward atmospheric moisture transport (PAMT) playing a crucial role in the interactions between the atmosphere, ice, and snow. This study analyzed meteorological data from an automatic weather station on the Austre Love & PRIME;nbreen glacier and ERA5 reanalysis data to examine the effect of PAMT on the surface energy balance (SEB) of the Arctic glacier. The results showed that Snet, H, and G acted as energy sources, while Lnet, Qm, and LE represented the heat sink. The study revealed the development process of an Atmospheric River (AR), a primary form of PAMT near Svalbard in February 2015. The findings highlight the stronger influence of PAMT on the glacier's SEB in winter, affecting variables such as air temperature, moisture, and wind speed.
ATMOSPHERIC RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
M. Kolbe, J. P. J. Sonnemans, R. Bintanja, E. C. van der Linden, K. van der Wiel, K. Whan, I. Benedict
Summary: Alongside increases in poleward moisture transport to the Arctic, climate models also project an increase in interannual variability with future warming. This study analyzes climate simulations to explore the link between atmospheric rivers (ARs) and moisture transport, finding that higher atmospheric moisture levels cause increases in AR frequency and intensity. Additionally, dynamic variability regulates regional ARs on an interannual basis. Future changes in dynamics may significantly amplify or dampen moisture-induced increases in ARs in a warmer climate. Positive AR anomalies are linked to increased surface air temperature and precipitation, with a negative effect on sea ice.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Geosciences, Multidisciplinary
N. Zhao, A. Manda, X. Guo, K. Kikuchi, T. Nasuno, M. Nakano, Y. Zhang, B. Wang
Summary: The transport and accumulation of moisture played a crucial role in the heavy rainfall in Japan in July 2020. Backward particle trajectory analysis identified two major moisture sources: transport from the tropics and uptake from the subtropics. A narrow moisture channel along the edge of the western Pacific Subtropical High was found to transport moisture to the Baiu front. The study revealed that most moisture from the tropics was lost due to precipitation, while the subtropical regions contributed over 80% of the moisture through evaporation and lower tropospheric convection, with the western Pacific region being the largest contributor.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Ian G. Watterson, Richard J. Keane, Martin Dix, Tilo Ziehn, Timothy Andrews, Yongming Tang
Summary: This study investigates the atmospheric moisture budget of idealized rising-CO2 simulations from 10 models submitted to CMIP6, using the new CMIP6 standard variables. Results show that precipitation, water vapor path, moisture flux, and convergence match well with ECMWF's Reanalysis 5, with heavy rainfall composites indicating a strong link between moisture convergence and heavy rainfall.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Oceanography
Mingyi Gu, Zhaomin Wang, Jianfen Wei, Xiaoyong Yu
Summary: The study evaluated the Arctic cloud water paths (CWPs) from five reanalysis datasets and found that the average CWPs of these datasets are relatively small, but show similar spatial patterns. All datasets exhibit larger CWPs and LWPs in summer than in winter.
ACTA OCEANOLOGICA SINICA
(2021)
Article
Geosciences, Multidisciplinary
Yang Zhou, Hyemi Kim, Duane E. Waliser
Summary: The study reveals that the Madden-Julian Oscillation (MJO) modulates the lifecycle of cool-season North Pacific atmospheric rivers (ARs) by impacting the location of convection centers and dynamical processes like anomalous MJO wind and seasonal mean moisture. Anomalous geopotential height patterns related to MJO are also found to affect the propagation of AR events. Model simulations further support these MJO-AR lifecycle relationships.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Etienne Dunn-Sigouin, Camille Li, Paul J. Kushner
Summary: Arctic moisture transport is influenced by planetary-scale waves, which are in turn affected by localized tropical SST features. The study shows that warming tropical SSTs strengthen Arctic moisture transport mainly through changes in water vapor content, while cooling tropical SSTs weaken the transport, with localized cooling having a stronger influence due to nonlinear feedbacks in the surface energy budget.
GEOPHYSICAL RESEARCH LETTERS
(2021)
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
Meteorology & Atmospheric Sciences
Paola A. Arias, Maria Lizeth Rendon, J. Alejandro Martinez, Richard P. Allan
Summary: Warming induced by increased greenhouse gas emissions is intensifying the global water cycle and increasing the water vapor content of the global atmosphere. However, the impact on regional atmospheric moisture transport and recycling in a warming climate has not been thoroughly studied. This research focuses on the projections for atmospheric moisture transport and recycling in tropical South America by the end of the twenty-first century under a climate change scenario. The findings show increased precipitable water linked to increased ocean evaporation, but also reductions in precipitation from main atmospheric moisture sources, total precipitation, and recycled precipitation over the region.
Article
Meteorology & Atmospheric Sciences
Olga Zolina, Ambroise Dufour, Sergey K. Gulev, Georgiy Stenchikov
JOURNAL OF HYDROMETEOROLOGY
(2017)
Article
Environmental Sciences
Pavel Groisman, Olga Bulygina, Geoffrey Henebry, Nina Speranskaya, Alexander Shiklomanov, Yizhao Chen, Nadezhda Tchebakova, Elena Parfenova, Natalia Tilinina, Olga Zolina, Ambroise Dufour, Jiquan Chen, Ranjeet John, Peilei Fan, Csaba Mayas, Irina Yesserkepova, Ildan Kaipov
ENVIRONMENTAL RESEARCH LETTERS
(2018)
Article
Geosciences, Multidisciplinary
Jonathan D. Wille, Vincent Favier, Ambroise Dufour, Irina V. Gorodetskaya, John Turner, Cecile Agosta, Francis Codron
Article
Meteorology & Atmospheric Sciences
Alexander Gavrikov, Sergey K. Gulev, Margarita Markina, Natalia Tilinina, Polina Verezemskaya, Bernard Barnier, Ambroise Dufour, Olga Zolina, Yulia Zyulyaeva, Mikhail Krinitskiy, Ivan Okhlopkov, Alexey Sokov
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2020)
Article
Geosciences, Multidisciplinary
Lucas Davaze, Antoine Rabatel, Ambroise Dufour, Romain Hugonnet, Yves Arnaud
FRONTIERS IN EARTH SCIENCE
(2020)
Proceedings Paper
Environmental Sciences
A. Gavrikov, M. Krinitsky, N. Tilinina, Y. Zyulyaeva, A. Dufour, S. K. Gulev
CLIMATE CHANGE: CAUSES, RISKS, CONSEQUENCES, PROBLEMS OF ADAPTATION AND MANAGEMENT
(2020)
Article
Geography, Physical
Ambroise Dufour, Claudine Charrondiere, Olga Zolina
Article
Meteorology & Atmospheric Sciences
Cyril Palerme, Chantal Claud, Ambroise Dufour, Christophe Genthon, Norman B. Wood, Tristan L'Ecuyer
ATMOSPHERIC RESEARCH
(2017)