Different climatic effects of the Arctic and Antarctic ice covers on land surface temperature in the Northern Hemisphere: application of Liang-Kleeman information flow method and CAM4.0

Jiang, Shunyu; Hu, Haibo; Perrie, William; Zhang, Ning; Bai, Hua; Zhao, Yang

doi:10.1007/s00382-021-05961-z

Cited by 7 publications

(4 citation statements)

References 99 publications

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“…Then, the weakened upward spreading of baroclinic Rossby waves results in anomalous convergence of the localized three-dimensional E-P fluxes and a corresponding significant upper atmospheric westerly deceleration near 30°N with an equivalent-barotropic structure. Similar westerly jet deceleration (Figures S7c-S7e in Supporting Information S1) can be confirmed considering the whole North Pacific SST and SST gradient anomalies between the strong and weak STCC years (Figures S7a and S7b in Supporting Information S1) in the global Community Atmosphere Model 5.3 model (Guan et al, 2019;Hu et al, 2022;Jiang et al, 2019Jiang et al, , 2022. Furthermore, considering only the influence of SST gradient anomalies within the STCC basin (Figure S8 in Supporting Information S1, 18°-40°N, 140°E−140°W by cosine attenuation), regional numerical experiments give a similar midlatitude westerly jet deceleration with an equivalent-barotropic structure over the STCC (Figure S9 in Supporting Information S1).…”

Section: Conclusion and Discussionsupporting

confidence: 75%

The Mode‐Water‐Induced Interannual Variation of the North Pacific Subtropical Countercurrent and the Corresponding Winter Atmospheric Anomalies

Chen

Yang

et al. 2022

Geophysical Research Letters

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Mode water is a vertically homogenous layer of water located between seasonal and permanent thermocline, characterized by a notable low potential vorticity value (PV, Oka & Qiu, 2012). Located in the northwest of the North Pacific, the Subtropical Mode Water (STMW) and the Central Mode Water (CMW) are representatives, which emerge in Kuroshio Recirculation and spread over the North Pacific Subtropical Gyre (Liu & Hu, 2007;Wang et al., 2020). Traditional researches are generally based on water mass analysis, or regard mode water as a memory carrier of the interannual to decadal climate variabilities, through which past atmospheric forcing signals can reemerge locally (

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Section: Conclusion and Discussionsupporting

confidence: 75%

The Mode‐Water‐Induced Interannual Variation of the North Pacific Subtropical Countercurrent and the Corresponding Winter Atmospheric Anomalies

Chen

Yang

et al. 2022

Geophysical Research Letters

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“…However, the reason for the persistent cold SSTAs appearing in the core region of WPSH-SNJ late years is not clear. Future studies will use Atmospheric Global Climate Model experiments and coupled ocean-atmosphere general circulation model simulations to verify the effects of the cold SST anomalies in the core region of WPSH-SNJ later years (C. He et al, 2017;Jiang et al, 2019Jiang et al, , 2022.…”

Section: Summary and Discussionmentioning

confidence: 99%

Significant Northward Jump of the Western Pacific Subtropical High: The Interannual Variability and Mechanisms

Wang

Ren

et al. 2023

JGR Atmospheres

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The intensity and position of the western Pacific subtropical high (WPSH) have crucial effects on climate and disaster events in East Asia during summer. The WPSH significant northward jump (SNJ) events are the main manifestation of the seasonal evolution of WPSH, which are important for the precipitation over East Asia. Using the daily reanalysis data sets from year 1979 to 2020, this study further defines the early and late SNJ events of WPSH on the interannual timescale, which are connected separately with the tropical, midlatitude subseasonal signals and the local air–sea interaction. However, the mechanisms of the WPSH‐SNJ events are different in the anomalous early and late years. In the early SNJ years, the subseasonal signals from the midlevel East Asia–Pacific teleconnection pattern or the low‐level boreal summer intraseasonal oscillation cause the positive 500 hPa geopotential height anomalies, which contributes to the significant WPSH northward jump in the first pentad of July. However, the above factors are unable to cause the WPSH‐SNJ in the late years. Until the second pentad of August, the collaborative effects between midhigh latitudes wave trains over high levels and cold sea surface temperature (SST) anomalies in the core region lead to the barotropic geopotential height anomalies and the lagged northward jump of WPSH. It seems that the meridional position of WPSH has a complex interannual variability, which is modulated by the solar radiation, the atmospheric disturbances at different levels, and the SST anomalies at the same time.

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“…Antarctica is home to 80% of the world's freshwater resources and boasts the largest reserves of oil and coal globally. As the planet's "cold source", Antarctica is one of the sensitive areas for climate change, and its shifts serve as a "magnifying glass" for global climate anomalies [1]. China's 14th Five-Year Plan specifically proposes to fortify its participation in the protection and utilization of Antarctica.…”

Section: Introductionmentioning

confidence: 99%

Climatic Trend of Wind Energy Resource in the Antarctic

Wang

Zhang

et al. 2023

JMSE

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Wind energy resource is an important support for the sustainable development of Antarctica. The evaluation of wind energy potential determines the feasibility and economy of wind power generation in Antarctica, among which mastering the variation rule of wind energy resource is the key to realizing the effective utilization of polar wind energy. Based on the 6-h ERA-5 reanalysis data of ECMWF from January 1981 to December 2020, this paper systematically analyzed the long-term variation trend of Antarctic wind energy resource by using the climate statistical analysis method and the least square fitting, with the comprehensive consideration of a series of key indicators such as Wind Power Density, Effective Wind Speed Occurrence, Energy Level Occurrence, and Stability. The results show that it indicates a positive trend for wind power density (0.5~2 W × m−2 × a−1), effective wind speed occurrence (2~3%/a), energy level occurrence (0.1~0.2%/a), and coefficient of variation (−0.005/a) in the South Pole—Kunlun station and the central region of Queen Maud land. The westerly belt exhibits a decreasing index (−0.5%/a) in terms of stability trend, indicating a positive potential. Kemp Land, the Ross Island—Balleny Islands waters show shortages in all indicators. The wind power density in the Antarctic region is stronger in spring and summer than in autumn and winter, with the weakest in autumn. Based on the above indicators, the variation trend in the East Antarctic coast, Wilhelm II Land—Wilkes Land, the South Pole—Kunlun station, and the westerlies is generally superior.

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Different climatic effects of the Arctic and Antarctic ice covers on land surface temperature in the Northern Hemisphere: application of Liang-Kleeman information flow method and CAM4.0

Cited by 7 publications

References 99 publications

The Mode‐Water‐Induced Interannual Variation of the North Pacific Subtropical Countercurrent and the Corresponding Winter Atmospheric Anomalies

The Mode‐Water‐Induced Interannual Variation of the North Pacific Subtropical Countercurrent and the Corresponding Winter Atmospheric Anomalies

Significant Northward Jump of the Western Pacific Subtropical High: The Interannual Variability and Mechanisms

Climatic Trend of Wind Energy Resource in the Antarctic

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