Article
Astronomy & Astrophysics
Ronald Albright, Thishan D. K. Gamalathge, Xinyue Wang, Xun Jiang, Liming Li
Summary: This study explores the variations of Solar-Induced Fluorescence (SIF), CO2, and precipitation during El Nino Southern Oscillation (ENSO) events in the tropical Indo-Pacific region compared to other times. The results show that there is less precipitation, more sinking air, lower SIF, and higher carbon dioxide during El Nino events. The spatial analysis suggests that these changes are related to the reduction of photosynthetic activities and an increase in biomass burning, leading to higher atmospheric CO2 levels.
EARTH AND SPACE SCIENCE
(2023)
Article
Geochemistry & Geophysics
Anatoly Soloviev, Shamil Bogoutdinov, Mikhail Nisilevich
Summary: By digitizing a large collection of K index analog records, Russian and Japanese scientific teams have been able to study the long-term evolution of geomagnetic activity in the northwestern Pacific region from 1954 to 2020. The analysis also reveals a correlation between the distribution features of the K index and sunspot numbers during solar cycles 19-24.
PURE AND APPLIED GEOPHYSICS
(2022)
Article
Meteorology & Atmospheric Sciences
Wenjuan Huo, Ziniu Xiao, Liang Zhao
Summary: This study systematically investigates the response of the tropical Pacific to the 11-year solar activity cycle and proposes a new mechanism to explain the decadal variations. The solar radiation directly affects the warm water volume and redistributes the solar-related heat through ocean dynamic processes, leading to the maintenance of Pacific Walker circulation anomalies and a negative feedback to the transition of warm water volume in the eastern Pacific. Observations and experiments show a lagged response in the tropical Pacific climate system.
JOURNAL OF CLIMATE
(2023)
Article
Environmental Sciences
Sigmund Guttu, Yvan Orsolini, Frode Stordal, Odd Helge Ottera, Nour-Eddine Omrani
Summary: The study demonstrates that the Pacific Decadal Oscillation (PDO) strongly modulates the solar-induced atmospheric response, impacting the tropospheric and stratospheric circulation. Specifically, during the solar maximum phase, intensification of the polar vortex is much stronger in the PDO- phase, leading to a stronger polar jet and weaker Aleutian Low in the troposphere.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Astronomy & Astrophysics
Irena Gershkovich, Susan T. Lepri, Nicholeen M. Viall, Simone Di Matteo, Larry Kepko
Summary: Mesoscale periodic structures observed in solar wind plasma can serve as a diagnostic tool for understanding the formation of the solar wind. Analysis of four events with such structures reveals variations in elemental abundance, mass dependencies, and charge state, which are linked to temporal or spatial variations in solar source regions and provide constraints on the solar wind formation mechanisms.
ASTROPHYSICAL JOURNAL
(2022)
Article
Meteorology & Atmospheric Sciences
Wenxiu Zhong, Wenju Cai, Arnold Sullivan, Wansuo Duan, Song Yang
Summary: This article investigates the combined effects of the North Pacific Oscillation (NPO) and the South Pacific Oscillation (SPO) on the interannual wind in the western-central equatorial Pacific (WCEP). The NPO influences the WCEP interannual wind during the boreal winter-spring by modulating the Northwestern Pacific Intertropical Convergence Zone (NITCZ). As austral winter approaches, the SPO takes over this role and maintains the anomalous NITCZ. The NPO benefits long-lead prediction of the WCEP interannual wind and El Niño-Southern Oscillation (ENSO), while the SPO is the dominant extratropical predictor of ENSO amplitude.
JOURNAL OF CLIMATE
(2023)
Article
Environmental Sciences
K. E. Giesbrecht, D. E. Varela
Summary: The study reveals significant variations in silica concentrations and production rates in the Pacific Arctic Region, with diatoms playing a key role in primary productivity and nitrate utilization. Irradiance and availability of silicic acid have significant effects on silica production rates, with silicic acid limitation observed in all hot spots.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Geosciences, Multidisciplinary
Shuang Li, Zhangqun Li, Sining Ling
Summary: This study analyzes the frequency characteristics of tropical cyclone (TC) genesis in the southeastern part of the western North Pacific (SEWNP) from 1965 to 2019 and investigates the combined effect of solar activity and El Nino-Southern Oscillation (ENSO). Results show that TCs generated in the SEWNP have long lifetimes and high strength, and their frequency is influenced by solar activity and ENSO. El Nino years during declining solar cycle phases exhibit significantly strong TC genesis frequency anomalies in the SEWNP, while the opposite is true for La Nina during ascending solar cycle phases. However, there is no significant feature in the combined effect of La Nina/El Nino and declining/ascending solar cycle phases.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Environmental Sciences
Arseniy Karagodin-Doyennel, Eugene Rozanov, Ales Kuchar, William Ball, Pavle Arsenovic, Ellis Remsberg, Patrick Joeckel, Markus Kunze, David A. Plummer, Andrea Stenke, Daniel Marsh, Doug Kinnison, Thomas Peter
Summary: Water vapor (H2O) and carbon monoxide (CO) in the middle atmosphere show a pronounced response to solar irradiance variability. Different models exhibit varying magnitudes and patterns of response to solar variability, with overall agreement with observations. This study improves our understanding of the capabilities and limitations of state-of-the-art models in simulating a solar signal in the middle atmosphere's chemistry and dynamics.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Cong Wang, Jing Li, Qinhuo Liu, Alfredo Huete, Longhui Li, Yadong Dong, Jing Zhao
Summary: The study reveals that the El Nino-Southern Oscillation (ENSO) has diverse effects on vegetation in the west Pacific region, and different types of ENSO events lead to different vegetation anomalies, which are closely related to variations in precipitation and temperature.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Yong-Fu Lin, Jin-Yi Yu, Chau-Ron Wu, Fei Zheng
Summary: The study shows that the 11-year solar cycle has a significant impact on sea surface temperature variations in the Northeastern Pacific, mainly through influencing the atmosphere and eventually affecting the surface temperature. This solar cycle contributes to the slow modulation of the central Pacific ENSO events.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Health Care Sciences & Services
Liat Ayalon, Senjooti Roy
Summary: This article examines the manifestation of ageism in the Western Pacific region, including stereotypes, prejudice, and discrimination based on age. The nature of ageism in this region, particularly in East and Southeast Asia, remains uncertain. Various theories have been proposed to explain the East-West differences in ageism, but none of them fully account for the mixed findings. Therefore, addressing ageism is an important step towards creating a world for all ages in Western Pacific countries.
LANCET REGIONAL HEALTH-WESTERN PACIFIC
(2023)
Article
Automation & Control Systems
Xinyu Li, Feng Chen, Qing Shi, Yue Cao, Fei Yan, Bingpeng Zhou
Summary: This paper investigates the problem of robust distributed estimation over dynamic and streaming graph signals, and proposes a new d-MC algorithm to overcome the vulnerability of existing methods to nonGaussian noise based on the Mean-Square-Error criterion. Simulation results demonstrate the desirable performance of the proposed algorithm in various noise environments.
Article
Business, Finance
Ashish Kumar, K. N. Badhani, Elie Bouri, Tareq Saeed
Summary: This paper expands the existing literature on herding behavior in commodity markets by focusing on major economies in the Asia-Pacific region. The study shows that herding behavior is heterogeneous across Asian economies and varies under different market and liquidity conditions. There is evidence of up/down market herding asymmetry, with herding being more pronounced during periods of high volatility. Notably, herding behavior varies with time and appears to be influenced by volatility.
FINANCE RESEARCH LETTERS
(2021)
Article
Astronomy & Astrophysics
David Stansby, Lucie M. Green, Lidia van Driel-Gesztelyi, Timothy S. Horbury
Summary: Both coronal holes and active regions serve as source regions for the solar wind, with active regions contributing between 30% to 80% of the solar wind during solar maximum and being negligible during solar minimum. The contribution of active regions to the solar wind shows strong correlations with sunspot number and coronal mass ejection rate, and can vary significantly on monthly timescales within individual solar maxima.
Article
Meteorology & Atmospheric Sciences
Xiaoli Chi, Rui Li, Ulrich Cubasch, Wenting Cao
THEORETICAL AND APPLIED CLIMATOLOGY
(2018)
Article
Meteorology & Atmospheric Sciences
Wei Shang, Xuejuan Ren, Bo Huang, Ulrich Cubasch, Xiu-Qun Yang
Article
Geosciences, Multidisciplinary
Sourabh Bal, Semjon Schimanke, Thomas Spangehl, Ulrich Cubasch
JOURNAL OF EARTH SYSTEM SCIENCE
(2018)
Article
Meteorology & Atmospheric Sciences
Xiaoli Chi, Ulrich Cubasch, Sahar Sodoudi
THEORETICAL AND APPLIED CLIMATOLOGY
(2019)
Article
Meteorology & Atmospheric Sciences
Ines Hoeschel, Sebastian Illing, Jens Grieger, Uwe Ulbrich, Ulrich Cubasch
METEOROLOGISCHE ZEITSCHRIFT
(2019)
Article
Biophysics
Sourabh Bal, Sahar Sodoudi
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2020)
Article
Meteorology & Atmospheric Sciences
Z. Zhuo, C. Gao, I. Kirchner, U. Cubasch
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2020)
Article
Meteorology & Atmospheric Sciences
Karumuri Ashok, Bidyabati Soraisam, Charan Teja Tejavath, Ulrich Cubasch
Summary: Analysis of high resolution coupled model simulations for the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA) regimes shows that Northeastern Indian summer monsoon rainfall (NEISMR) remained stable, in contrast to the rest of India, with stronger TEJ and increased rainfall during MCA. However, simulations suggest a relatively stable NEISMR over northeastern India from MCA through LIA, indicating a minor role of tropical ocean and atmospheric coupling in the northeast climate.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Sourabh Bal, Andreas Matzarakis
Summary: The study investigated the long-term thermal bioclimate conditions in four stations of West Bengal, India using physiological effective temperature (PET) and modified physiologically equivalent temperature (mPET). It found higher human thermal stress in Kolkata compared to other stations, but a reverse behavior was observed in recent years. The monthly distribution and seasonal differences of PET and mPET indices were also analyzed.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Zhihong Zhuo, Ingo Kirchner, Ulrich Cubasch
Summary: Explosive volcanic eruptions have a significant impact on surface climate, especially in monsoon regions. The hydrological responses to volcanic aerosol injection differ in different regions and hemispheres. This study investigates the mechanisms of regional hydrological responses to volcanic aerosol injection in the Asian monsoon region using climate models, and finds that both northern and southern hemisphere injections lead to changes in aridity in the region.
CLIMATE OF THE PAST
(2023)
Article
Environmental Sciences
Zhihong Zhuo, Ingo Kirchner, Stephan Pfahl, Ulrich Cubasch
Summary: Explosive volcanic eruptions have varying impacts on near-surface temperature and precipitation, influenced by eruption seasons and latitudes. Stronger cooling is observed in areas with higher volcanic aerosol content, with significant precipitation variations in the tropics. NH and SH eruptions have reversed climate impacts, especially in the region of the South Asian summer monsoon (SASM).
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Emmanuele Russo, Ingo Kirchner, Stephan Pfahl, Martijn Schaap, Ulrich Cubasch
GEOSCIENTIFIC MODEL DEVELOPMENT
(2019)
Article
Geosciences, Multidisciplinary
Bijan Fallah, Emmanuele Russo, Walter Acevedo, Achille Mauri, Nico Becker, Ulrich Cubasch
CLIMATE OF THE PAST
(2018)
Article
Geosciences, Multidisciplinary
Bo Huang, Ulrich Cubasch, Christopher Kadow
EARTH SYSTEM DYNAMICS
(2018)
Article
Environmental Sciences
Stella Babian, Jens Grieger, Ulrich Cubasch
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2018)