scholarly journals Close relationship between the East Asian westerly jet and Russian far East surface air temperature in summer

2018 ◽  
Vol 11 (3) ◽  
pp. 282-286 ◽  
Author(s):  
LIN Xiao-Zhen ◽  
LI Chao-Fan ◽  
LIN Zhong-Da ◽  
LU Ri-Yu
Keyword(s):  
Air Temperature ◽  
East Asian ◽  
Russian Far East ◽  
Far East ◽  
Surface Air Temperature ◽  
Westerly Jet ◽  
Close Relationship ◽  
East Asian Westerly Jet

scholarly journals Seasonally changing contribution of sea ice and snow cover to uncertainty in multi-decadal Eurasian surface air temperature trends based on CESM simulations

2021 ◽  
Author(s):  
Zhaomin Ding ◽  
Renguang Wu
Keyword(s):  
Sea Ice ◽  
Air Temperature ◽  
Western Siberia ◽  
Russian Far East ◽  
Far East ◽  
Surface Air Temperature ◽  
The Caspian Sea ◽  
Sea Ice Concentration ◽  
Northern Siberia ◽  
The Impact

AbstractThis study investigates the impact of sea ice and snow changes on surface air temperature (SAT) trends on the multidecadal time scale over the mid- and high-latitudes of Eurasia during boreal autumn, winter and spring based on a 30-member ensemble simulations of the Community Earth System Model (CESM). A dynamical adjustment method is used to remove the internal component of circulation-induced SAT trends. The leading mode of dynamically adjusted SAT trends is featured by same-sign anomalies extending from northern Europe to central Siberia and to the Russian Far East, respectively, during boreal spring and autumn, and confined to western Siberia during winter. The internally generated component of sea ice concentration trends over the Barents-Kara Seas contributes to the differences in the thermodynamic component of internal SAT trends across the ensemble over adjacent northern Siberia during all the three seasons. The sea ice effect is largest in autumn and smallest in winter. Eurasian snow changes contribute to the spread in dynamically adjusted SAT trends as well around the periphery of snow covered region by modulating surface heat flux changes. The snow effect is identified over northeast Europe-western Siberia in autumn, north of the Caspian Sea in winter, and over eastern Europe-northern Siberia in spring. The effects of sea ice and snow on the SAT trends are realized mainly by modulating upward shortwave and longwave radiation fluxes.

scholarly journals New species of the genus Ypsolopha Latreille, 1796 (Lepidoptera: Ypsolophidae) from the south of the Russian Far East

2020 ◽  
Vol 421 ◽  
pp. 14-26
Author(s):  
M.G. Ponomarenko ◽  
◽  
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
East Asian ◽  
Russian Far East ◽  
Far East ◽  
The South ◽  
Asian Species ◽  
A New Species ◽  
The Russian Far East

An analysis of the mtCOI sequences in the species from the genus Ypsolopha Latreille, 1796 made it possible to confirm a new species for science, Y. occultatella sp. n., morphologically similar to the East Asian species Y. yasudai Moriuti, 1964. The genetic distance between the mtCOI sequences in Y. occultatella sp. n. and Y. yasudai is 0,066–0,069 (6,6–6,9 %). However, the minimal genetic distance, 0,038–0,042 (3,8–4,2 %), was determined between the mtCOI sequences of the new species and Y. blandella (Christoph, 1882), while these species differ well in the forewing pattern.

A revision of the genus Lophomilia Warren, 1913 with description of four new species from East Asia (Lepidoptera: Noctuidae: Hypeninae)

Zootaxa ◽  
2009 ◽  
Vol 1989 (1) ◽  
pp. 1-22 ◽  
Author(s):  
VLADIMIR KONONENKO ◽  
Gottfried Behounek
Keyword(s):  
New Species ◽  
East Asia ◽  
East Asian ◽  
Russian Far East ◽  
Far East ◽  
Female Genitalia ◽  
Male And Female ◽  
Distribution Maps ◽  
First Time ◽  
Lepidoptera Noctuidae

The East Asian noctuid genus Lophomilia Warren, 1913 (=Atuntsea Berio, 1977, Bryograpta Sugi, 1977) is revised. Four new species (L. nekrasovi sp. n., L. rustica sp. n., L. diehli sp. n., and L. kobesi sp. n.) are described from Russian Far East, Korea, China and Indonesia, Sumatra. Lophomilia takao Sugi, 1962 and Lophomilia albicosta Yoshimoto 1995 are reported for the first time from China; Lophomilia polybapta (Butler, 1879) is first reported from Russia. The male and female genitalia of most species are described, adults of 12 species from East Asia are illustrated, and distribution maps for all species are presented.

scholarly journals Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960–2012

2019 ◽  
Vol 19 (15) ◽  
pp. 9903-9911
Author(s):  
Xin Hao ◽  
Shengping He ◽  
Huijun Wang ◽  
Tingting Han
Keyword(s):  
Air Temperature ◽  
General Circulation ◽  
East Asian Winter Monsoon ◽  
East Asian ◽  
Surface Air Temperature ◽  
Circulation Model ◽  
Winter Monsoon ◽  
Anthropogenic Influence ◽  
Anthropogenic Forcing ◽  
Asian Winter Monsoon

Abstract. The East Asian winter monsoon (EAWM) is greatly influenced by many factors that can be classified as anthropogenic forcing and natural forcing. Here we explore the contribution of anthropogenic influence to the change in the EAWM over the past decades. Under all forcings observed during 1960–2013 (All-Hist run), the atmospheric general circulation model is able to reproduce the climatology and variability of the EAWM-related surface air temperature and 500 hPa geopotential height and shows a statistically significant decreasing EAWM intensity with a trend coefficient of ∼-0.04 yr−1, which is close to the observed trend. By contrast, the simulation, which is driven by the same forcing as the All-Hist run but with the anthropogenic contribution to them removed, shows no decreasing trend in the EAWM intensity. By comparing the simulations under two different forcing scenarios, we further reveal that the responses of the EAWM to the anthropogenic forcing include a rise of 0.6∘ in surface air temperature over East Asia as well as weakening of the East Asian trough, which may result from the poleward expansion and intensification of the East Asian jet forced by the change in temperature gradient in the troposphere. Additionally, compared with the simulation without anthropogenic forcing, the frequency of strong (weak) EAWM occurrence is reduced (increased) by 45 % (from 0 to 10/7). These results indicate that the weakening of the EAWM during 1960–2013 may be mainly attributed to the anthropogenic influence.

Three new species of Nesidiocoris Kirkaldy from Japan, with a taxonomic review of the tribe Dicyphini for eastern Asia (Heteroptera: Miridae: Bryocorinae)

2017 ◽  
Vol 160 (1) ◽  
pp. 25-40 ◽  
Author(s):  
Tomohide Yasunaga
Keyword(s):  
New Species ◽  
East Asian ◽  
Russian Far East ◽  
Far East ◽  
Junior Synonym ◽  
Eastern Asia ◽  
Taxonomic Review ◽  
Three New Species ◽  
Annotated Checklist

The fauna of the bryocorine plant bug tribe Dicyphini in eastern Asia (including Japan, Korea, Russian Far East and Taiwan) is reviewed, with emphasis on the genus Nesidiocoris Kirkaldy, which is rediagnosed and discussed. Twelve species in six genera are now recognized. Three new species of Nesidiocoris are described from Japan: Nesidiocoris nozakianus sp. n., N. okinawanus sp. n. and N. simotukensis sp. n. Nesidiocoris poppiusi (Carvalho) is proposed as a junior synonym of N. tenuis, and N. plebejus (Poppius) is transferred to Singhalesia China & Carvalho. An annotated checklist and a key to genera and species are also provided to aid in appreciating the east Asian dicyphine fauna.

Effect of Thermal Conductivity of the Soil Cover on the Air Temperature Dynamics under Natural Conditions and at Anthropogenic Loads

2012 ◽  
Vol 260-261 ◽  
pp. 852-855
Author(s):  
E.E. Kholoden ◽  
O.M. Morina ◽  
S.A. Lobanov
Keyword(s):  
Thermal Conductivity ◽  
Air Temperature ◽  
Soil Cover ◽  
Linear Trend ◽  
Russian Far East ◽  
Far East ◽  
Temperature Fields ◽  
Heat Condition ◽  
Condition Equation ◽  
Natural Mechanism

By the example of the southern Russian Far East territory, it was stated that a sign of the linear trend of the long-term air temperature variations in the warm and cold periods of the year depended essentially on the soil thermal conductivity. It was shown that the mechanism of the soil temperature fields’ formation was controlled by the Fourier heat condition equation. In this case, the modern anthropogenic loads on the soil cover can only slightly enhance or weaken the natural mechanism of forming the temperature fields of soil and air.

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