scholarly journals High correlation between winter precipitation and air temperature in heavy-snowfall areas in Japan

2008 ◽  
Vol 49 ◽  
pp. 7-10 ◽  
Author(s):  
Yukari Takeuchi ◽  
Yasoichi Endo ◽  
Shigeki Murakami
Keyword(s):  
Air Temperature ◽  
Winter Precipitation ◽  
The Sea Of Japan ◽  
Heavy Snowfall ◽  
Temperature And Precipitation ◽  
Effective Factor ◽  
Precipitation Decrease ◽  
Precipitation Ratio ◽  
Term Data

AbstractLong-term data of winter air temperature and precipitation were analyzed and the correlation between them investigated in order to identify the factors influencing snow reduction during the recent warmer winters in the heavy-snowfall areas in Japan. A high negative correlation between winter precipitation and air temperature was identified in the heavy-snowfall areas on the Sea of Japan side in the center of the main island (Honshu). It was confirmed that precipitation is mainly caused by cold winter monsoons, and thus correlates to a large extent with air temperature in these areas. The precipitation decrease can be considered an effective factor for the recent reduction in snow as well as the snowfall to precipitation ratio. This should be taken into account for a better prediction of snow reduction in relation to global warming.

scholarly journals Analysis of climate change in Dnipropetrovsk Region

2017 ◽  
pp. 43-51
Author(s):  
V. V. Hrynchak
Keyword(s):  
Climate Change ◽  
Air Temperature ◽  
Climate Changes ◽  
Absolute Temperature ◽  
Climatic Conditions ◽  
Annual Precipitation ◽  
Temperature And Precipitation ◽  
Weather Observations ◽  
Average Annual Temperature

The decision about writing this article was made after familiarization with the "Brief Climatic Essay of Dnepropetrovsk City (prepared based on observations of 1886 – 1937)" written by the Head of the Dnipropetrovsk Weather Department of the Hydrometeorological Service A. N. Mikhailov. The guide has a very interesting fate: in 1943 it was taken by the Nazis from Dnipropetrovsk and in 1948 it returned from Berlin back to the Ukrainian Hydrometeorological and Environmental Directorate of the USSR, as evidenced by a respective entry on the Essay's second page. Having these invaluable materials and data of long-term weather observations in Dnipro city we decided to analyze climate changes in Dnipropetrovsk region. The article presents two 50-year periods, 1886-1937 and 1961-2015, as examples. Series of observations have a uniform and representative character because they were conducted using the same methodology and results processing. We compared two main characteristics of climate: air temperature and precipitation. The article describes changes of average annual temperature values and absolute temperature values. It specifies the shift of seasons' dates and change of seasons' duration. We studied the changes of annual precipitation and peculiarities of their seasonable distribution. Apart from that peculiarities of monthly rainfall fluctuations and their heterogeneity were specified. Since Dnipro city is located in the center of the region the identified tendencies mainly reflect changes of climatic conditions within the entire Dnipropetrovsk region.

scholarly journals Kuzbass Botanical Garden climate characteristics and the state of the environment

2021 ◽  
Vol 31 ◽  
pp. 00022
Author(s):  
Rashit Sheremetov ◽  
Peter Stieglbauer
Keyword(s):  
Air Temperature ◽  
Temporal Patterns ◽  
Botanical Garden ◽  
Efficiency Index ◽  
Biological Efficiency ◽  
Indirect Assessment ◽  
Temperature And Precipitation ◽  
Daily Data ◽  
State Of The Environment

The characteristic of a number of parameters variability of the Kuzbass Botanical Garden climate are studied for the period from 1966 to 2020.An indirect assessment of the climate based on the climate biological efficiency index is given. The analysis of the long-term dynamics of the selected parameters is carried out, the main temporal patterns in their distribution are revealed. As initial materials, air temperature and precipitation daily data for the period 1966-2020.

scholarly journals Long-term dynamics of the atmospheric and soil climate of humid subtropics of Russia

2019 ◽  
pp. 23-30
Author(s):  
O. V. Reshotkin
Keyword(s):  
Soil Temperature ◽  
Air Temperature ◽  
Quantitative Characteristic ◽  
Winter Season ◽  
Temperature And Precipitation ◽  
Soil Temperatures ◽  
Soil Climate ◽  
Climatic Normal ◽  
Humid Subtropics

Aim. Identify patterns of temporal changes in the parameters of the atmospheric and soil climates of humid subtropics. Methods. The dynamics of air and soil temperature and precipitation are analyzed in the long-term and seasonal cycles with respect to the climatic normal, which is considered as a quantitative characteristic of the conditions of pedogenesis and climate variability over time. Results. The data on air temperature, precipitation and soil temperature yellow soils, formed in a subtropical wet-forest soil bioclimatic area are analyzed. It is shown that the average annual air temperature in 2001 - 2018 exceeded the climatic normal by 0,7°C, the annual precipitation increased by 104 mm. Modern warming leads to a change in the temperature regime of yellow soils. The average annual soil temperature at the beginning of the XXI century increased from 0,5°С at the depth of 320 cm to 0,9°С at the depth of 20 cm. The sum of active soil temperatures above 10°С at the depth of 20 cm increased by 283°С. Main conclusions. In the modern period, a change in the atmospheric and soil climate towards warming is observed in the zone of distribution of yellow soils of humid subtropics of Russia, accompanied by an increase in precipitation. Warming is most pronounced in the summer season and is practically not observed in the winter season. It is characterized by an increase in air and soil temperature throughout its profile, an increase in the sum of active temperatures. The revealed climate changes make it possible to re-evaluate the soil and agroclimatic resources of the Russian subtropics for agriculture and forestry.

Assessment of changes in air temperature and precipitation in Transbaikalia

2021 ◽  
Vol 2 ◽  
pp. 138-146
Author(s):  
V.K. Smakhtin ◽  
Keyword(s):  
Air Temperature ◽  
High Water ◽  
Total Precipitation ◽  
Significance Level ◽  
Temperature And Precipitation ◽  
Annual Total Precipitation ◽  
Lena Basin ◽  
Annual Total ◽  
Weather Stations

Assessment of changes in air temperature and precipitation in Transbaikalia/ Smakhtin V.K. // Hydrometeorological Research and Forecasting, 2021, no. 2 (380), pp. 138-146. The paper analyzes long-term fluctuations in average air temperature and annual total precipitation in Transbaikalia. Between 1951 and 2020, air temperature increased by 2.3 °C according to 40 weather stations. Warming is mainly manifested in the air temperature rise in February, March and April. From 1955 to 2017, the decrease in annual total precipitation was 56 mm in the Amur basin and 39 mm in the Yenisei basin. The trends are reliable at the 5% significance level. In the Lena basin, annual total precipitation during the mentioned period increased by 7 mm, the trend is not reliable at the 5% significance level. The high-water phase has been observed since 2017. Taking into account that two previous high-water phases lasted 16‒17 years, it may be supposed that a risk of precipitation above the normal will be kept in the next 13–14 years. Keywords: climate change, air temperature, precipitation, phases of water content, trendsRef. 81.

scholarly journals The influence of local climate change on the productivity of spring cereals in the Kirov region

2021 ◽  
Vol 22 (2) ◽  
pp. 244-253
Author(s):  
I. V. Lyskova ◽  
O. E. Sukhoveeva ◽  
T. V. Lyskova
Keyword(s):  
Air Temperature ◽  
Spring Wheat ◽  
Meteorological Data ◽  
Weather Conditions ◽  
Eastern Region ◽  
Positive Trend ◽  
Local Climate ◽  
Temperature And Precipitation ◽  
Spring Cereals

On the basis of long-term meteorological data and research results in a long-term stationary experiment of 1971-2020 a retrospective analysis of changes in air temperature and precipitation in the eastern region of the central climatic zone of the Kirov region was carried out and the influence of these characteristics on the dynamics of the yield of spring cereals was estimated. It has been established that the average annual air temperature during the research period was 2.4±1.0 °C. At the same time, its stable positive trend was observed at the rate of 0.39 °С /10 years. Two decades from 2001 to 2020 were recorded as the warmest for 50 years, when the temperature was 0.7...2.6 °C above climate normal. Selyaninov hydrothermal coefficient (0.7...2.1) testifies to the contrasting conditions of humidification of the vegetation periods during the research years – from drought to excessively humidified. In a long-term experiment, the yield of spring cereals increased in the row wheat – barley – oats: 2.17±0.86, 3.04±0.61, 3.39±0.65 t/ha, respectively. Strong correlations were marked between the average yield (spring wheat) and weather conditions in June: reverse with air temperature (rр = -0.735) and direct with the amount of precipitation (rр = 0.686). It has been established that the use of phosphorus fertilizers (and their aftereffect) in combination with nitrogen-potassium fertilizers weakened the influence of weather conditions on the productivity of spring wheat: the determination coefficients (R2), which reflect the portion of variability due to weather conditions, were 0.59-0.73 for the variant without fertilizers and decreased to 0.50-0.56 when applying NP3K.

scholarly journals Long term Temperature and Precipitation Trends Assessment in the state of Qatar and its Implication to Energy Water and Food Nexus

2021 ◽  
Author(s):  
Al-Ansari Tareq ◽  
Govindan Rajesh ◽  
Hazrat Bilal
Keyword(s):  
Decision Making ◽  
Winter Precipitation ◽  
Decision Making Process ◽  
Monthly Precipitation ◽  
Seasonal Temperature ◽  
Security Assessment ◽  
Negative Consequences ◽  
Temperature And Precipitation ◽  
Trade Offs

Abstract Climate change is one of the most severe global challenges of the present generation. Variations in temperature and precipitation can seriously affect water energy, water and food (EWF) security. Assessment of the ground-based observation of the climatic parameters such as temperature and precipitation are vital for the overall decision-making process concerning energy, water and food security. In this study, temperature and precipitation data is investigated using the Mann Kendall, Pettitt and Watson tests and inter-annual variability assessment. Long-term temperature data indicates that the annual and seasonal temperature has increased significantly between 1987 and 2016. The mean temperature has increased by 1.02 ℃ over the period of observation. In contrast, the study determines that precipitation during the period of observation decreased by -12.6 mm. However, this decreasing trend is not statistically significant (p < 0.05). Furthermore, total monthly precipitation is observed to be decreasing during the winter (December-January-February-DJF) while increasing in spring (March-April-May-MAM), summer (June-July-August-JJA) and autumn (September-October-November-SON). Despite the observed increases in the seasonal temperature during JJA, MAM and SON, the decreasing trend in winter precipitation is of more concern as most of the rainfall is received during DJF. These results have serious implications for EWF resources and the ‘nexus’ between them. Such integrated resource management approaches not only lower the risks of a one-dimensional decision-making process, it can also identify interdependencies, synergies, and trade-offs amongst the EWF sectors. As an outcome of the calculated trends, this study recommends measures to improve the overall resilience of EWF sectors and to adapt and mitigate the negative consequences of the changing climate faced by these sectors.

scholarly journals Influence of high temperature on dairy productivity of Ukrainian Schwyz

2018 ◽  
Vol 20 (83) ◽  
pp. 97-101
Author(s):  
Т.О. Vasilenko ◽  
R.V. Milostiviy ◽  
О.О. Kalinichenko ◽  
G.S. Gutsulyak ◽  
E.M. Sazykina
Keyword(s):  
High Temperatures ◽  
Milk Yield ◽  
Air Temperature ◽  
Milk Fat ◽  
Milk Protein ◽  
Warm Period ◽  
Maximum Temperature ◽  
Financial Losses ◽  
Term Data

In monitoring studies of recent years, global warming is reported. This is a significant problem for dairy farming in much of Europe, especially in the central and southern regions, as reported by numerous studies. Dairy cattle highly productive are extremely sensitive to hot temperatures; their consequence is health problems, a significant reduction in milk yield and milk quality. Unfortunately, heat stress remains an unrecognized problem for domestic cattle breeding, although the financial losses from its harmful influence in European are quite substantial. The aim of our work was to study the effect of high temperatures on milk yield of cows of Ukrainian Schwitz on one of the complexes of high-tech milk production. At the beginning of the research, we decided to test the hypothesis of increasing hot air temperatures in the warm period of the year compared with the long-term data. Then we studied how the milk of Schwitz breed varies during the hot season, depending on the magnitude of the maximum temperature values. According to the results of the study, it can be noted that the air temperature during the warm period of 2017 tended to increase (+0.6 °С) in comparison with the long-term data. In August, the air temperature significantly exceeded the long-term data by +3 °C (td = 2.89, P < 0.05). The relationship between the temperature and milk yield of cows is revealed by an average degree of reliability (r = -0.45, P < 0.05). Compared with the most favorable external conditions in May, the cows' milk yield decreased in June by 3.0%, the yield of milk fat by 5.2%, the milk protein content by 3.4% (P < 0.001). In July and August, the cows' milk yield decreased by 4.6 and 5.5% (P < 0.001), the yield of milk fat decreased by 3.1 and 7.3% (P < 0.01–0.001), the yield of milk protein 3.4 and 5.7% (P < 0.001). Thus, high temperatures during the summer period contributed to a decrease in milk yield and the main components of milk of the Ukrainian Schwitz, which can lead to tangible financial losses.

scholarly journals Long-term patterns in dissolved organic carbon in boreal lakes: the role of incident radiation, precipitation, air temperature, southern oscillation and acid deposition

2003 ◽  
Vol 7 (3) ◽  
pp. 390-398 ◽  
Author(s):  
J. J. Hudson ◽  
P. J. Dillon ◽  
K. M. Somers
Keyword(s):  
Organic Carbon ◽  
Solar Radiation ◽  
Regression Model ◽  
Air Temperature ◽  
Southern Oscillation ◽  
Summer Precipitation ◽  
Winter Precipitation ◽  
Boreal Lakes ◽  
Doc Concentration

Abstract. Both lake-specific (e.g. pH) and regional (e.g. precipitation) factors affect DOC concentration and pattern. Using annual DOC concentration in nine boreal lakes in the ice-free season, the potential influences of five regional factors, air temperature, precipitation, SO4 deposition, solar radiation (photosynthetically active radiation, or PAR) and the southern oscillation index (SOI) have been explored through multiple regression. Mean solar radiation, winter precipitation and summer precipitation explained 59% of the variation in the mean DOC concentration (F3,17= 8.29, p= 0.0013). Solar radiation and winter precipitation were correlated, negatively, while summer precipitation was correlated, positively, with DOC concentration. Because these relationships were based on only 21 years of data (1978 to 1998), the significance of the parameters in the regression model was evaluated with a randomisation test. This re-analysis indicated that summer precipitation did not contribute significantly to the regression model ( prand= 0.183). The final multiple regression explained 50% of the variation in DOC (F2,18 = 9.33, prand= 0.002) based on solar radiation and winter precipitation. These results suggest that solar radiation and winter precipitation have a significant role in determining long-term DOC concentration in boreal lakes. Keywords: dissolved-organic-carbon, lakes, climate, solar-radiation, precipitation, acid-precipitation, Precambrian-Shield-Ontario

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