Regional structure of surface air temperature fluctuations in the Southern Urals

2018 ◽  
Author(s):  
Denis Vasilev ◽  
Vladimir Semenov ◽  
Ekaterina Kochetkova ◽  
Vladimir Vodopyanov
Keyword(s):  
Air Temperature ◽  
Surface Air Temperature ◽  
Temperature Fluctuations ◽  
Southern Urals ◽  
Regional Structure ◽  
The Southern Urals

scholarly journals Surface Air Temperature Fluctuations and Lapse Rates on Olivares Gamma Glacier, Rio Olivares Basin, Central Chile, from a Novel Meteorological Sensor Network

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Edward Hanna ◽  
Sebastian H. Mernild ◽  
Jacob C. Yde ◽  
Simon de Villiers
Keyword(s):  
Air Temperature ◽  
Time Resolution ◽  
Surface Air Temperature ◽  
Temperature Fluctuations ◽  
Time Of Day ◽  
Lapse Rate ◽  
Wave Radiation ◽  
High Time Resolution ◽  
Hourly Temperature ◽  
Lapse Rates

Empirically based studies of glacier meteorology, especially for the Southern Hemisphere, are relatively sparse in the literature. Here, we use an innovative network of highly portable, low-cost thermometers to report on high-frequency (1-min time resolution) surface air temperature fluctuations and lapse rates (LR) in a ~800-m elevational range (from 3,675 to 4,492 m a.s.l.) across the glacier Olivares Gamma in the central Andes, Chile. Temperatures were measured during an intense field campaign in late Southern summer, 19–27 March 2015, under varying weather conditions. We found a complex dependence of high-frequency LR on time of day, topography, and wider meteorological conditions, with hourly temperature variations during this week that were probably mainly associated with short- and long-wave radiation changes and not with wind speed/direction changes. Using various pairs of sites within our station network, we also analyze spatial variations in LR. Uniquely in this study, we compare temperatures measured at heights of 1-m and 2-m above the glacier surface for the network of five sites and found that temperatures at these two heights occasionally differed by more than ±4°C during the early afternoons, although the mean temperature difference is much smaller (~0.3°C). An implication of our results is that daily, hourly, or even monthly averaged LR may be insufficient for feeding into accurate melt models of glacier change, with the adoption of subhourly (ideally 1–10-min) resolution LR likely to prove fruitful in developing new innovative high-time-resolution melt modelling. Our results are potentially useful as input LR for local glacier melt models and for improving the understanding of lapse rate fluctuations and glacier response to climate change.

scholarly journals Climate and weather of the Southern Urals and their influence on agronomy

2020 ◽  
Vol 222 ◽  
pp. 05015
Author(s):  
Yu.M. Nesterenko ◽  
N.V. Solomatin ◽  
A.V. Khalin
Keyword(s):  
Soil Moisture ◽  
Air Temperature ◽  
Spring Wheat ◽  
Atmospheric Precipitation ◽  
Southern Urals ◽  
Annual Precipitation ◽  
Winter Period ◽  
Early Winter ◽  
Frozen Ground ◽  
The Southern Urals

Changes in climate, precipitation and air temperature in the Southern Urals over the past 133 years are considered. A decrease in the climatic norm of atmospheric precipitation by 24 mm and an increase in the air temperature in the region by 1.2 º C were revealed. The main decrease in precipitation occurred during the growing season of early crops, and air temperatures in the autumn-winter period, which significantly changed the conditions for agronomy. The increasing aridity of the climate has worsened the conditions for growing spring crops. The applied system of rain-fed agriculture in Orenburg region provides the use of only 30–40% of annual precipitation. Early winter sowing of spring wheat in frozen ground with snow cover up to 10–15 cm is proposed. With them, seed germination, seedlings and tillering of plants are well provided with moisture and have favorable temperature conditions in April-May. Plants with a strong root system can get soil moisture up to 1.5 meters deep and effectively use small precipitation in June and July, which mainly moisturizes the soil to a depth of 5 cm. Early winter sowings of spring wheat are less susceptible to droughts, Favorable soil moisture and air temperature in the spring provide early shoots, plant development and 1.5–2-fold increase in yield. With early winter sowings, the efficiency of using annual precipitation increases to 50–55%.

scholarly journals Air temperature, precipitation and agronomy in steppe zone of the Southern Urals

2021 ◽  
Vol 817 (1) ◽  
pp. 012076
Author(s):  
Yu Nesterenko ◽  
M Nesterenko ◽  
N Solomatin ◽  
A Khalin ◽  
Yu Vladov
Keyword(s):  
Air Temperature ◽  
Steppe Zone ◽  
Southern Urals ◽  
The Southern Urals

The first data on possible Mezozoic magmatism within the Western slope of the Southern Urals

2018 ◽  
pp. 24-34
Author(s):  
A. O. Khotylev ◽  
N. B. Devisheva ◽  
Al. V. Tevelev ◽  
V. M. Moseichuk
Keyword(s):  
Southern Urals ◽  
Western Slope ◽  
Isotopic Age ◽  
The Southern Urals ◽  
Early Proterozoic ◽  
Carbonate Formations ◽  
Two Bodies

Within the Western slope of the Southern Urals, there are plenty of basite dyke complexes of Riphean to Vendian among Precambrian terrigenous-carbonate formations. In metamorphic formations of the Taratash complex (Archean to Early Proterozoic, the northern closure of the Bashkirian meganticlinorium) there was observed the andesitic dyke with isotopic age of 71±1 Ma (U-Pb SHRIMP II on zircons) and near Bakal two bodies of gabbroids with zircons of similar ages were found. These are the first evidence of possible Mezozoic magmatism in this region.

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