Meteorological Events Affecting Cold-Air Pools in a Small Basin

2011 ◽  
Vol 50 (11) ◽  
pp. 2223-2234 ◽  
Author(s):  
Manfred Dorninger ◽  
C. David Whiteman ◽  
Benedikt Bica ◽  
Stefan Eisenbach ◽  
Bernhard Pospichal ◽  
...  

AbstractMeteorological events affecting the evolution of temperature inversions or cold-air pools in the 1-km-diameter, high-altitude (~1300 m MSL) Grünloch basin in the eastern Alps are investigated using data from lines of temperature dataloggers running up the basin sidewalls, nearby weather stations, and weather charts. Nighttime cold-air-pool events observed from October 2001 to June 2002 are categorized into undisturbed inversion evolution, late buildups, early breakups, mixing events, layered erosion at the inversion top, temperature disturbances occurring in the lower or upper elevations of the pool, and inversion buildup caused by the temporary clearing of clouds. In addition, persistent multiday cold-air pools are sometimes seen. Analyses show that strong winds and cloud cover are the governing meteorological parameters that cause the inversion behavior to deviate from its undisturbed state, but wind direction can also play an important role in the life cycle of the cold-air pools, because it governs the interaction with steep or gentle slopes of the underlying topography. Undisturbed cold-air pools are unusual in the Grünloch basin. A schematic diagram illustrates the different types of cold-air-pool events.

2007 ◽  
Vol 88 (5) ◽  
pp. 701-716 ◽  
Author(s):  
R. Steinacker ◽  
C. D. Whiteman ◽  
M. Dorninger ◽  
B. Pospichal ◽  
S. Eisenbach ◽  
...  

Because sinkholes are an excellent natural laboratory for studying processes leading to the formation, maintenance, and dissipation of temperature inversions, an extended set of meteorological field experiments was conducted in limestone sinkholes of various sizes and shapes in the eastern Alps during the period from 17 October 2001 through 4 June 2002. The experiments were conducted in an area surrounding the Gruenloch Sinkhole, which in earlier years had recorded the lowest surface minimum temperature in Central Europe, −52.6°C. A dense array of surface temperature sensors and three automatic weather stations were operated continuously during the experimental period, and special experiments enhanced with tethersondes and other equipment were conducted from 2 to 4 June 2002. An overview of the experiments is presented and first results are given.


2021 ◽  
pp. 1-17
Author(s):  
Nara Shin ◽  
Jihye Kim

Abstract This study investigated the association between the different types of plant-based diets and dyslipidemia in Korean adults using data from the nationally representative sample. Using the 2012-2016 Korea National Health and Nutrition Survey data, a total of 14,167 adults (≥19 years old) participated in this study. Dietary intake was assessed by a semi-quantitative food frequency questionnaire. Three different plant-based diet indices (overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), unhealthful plant-based diet index (uPDI)), were calculated. Dyslipidemia and its components (hypertriglyceridemia, hypercholesterolemia, low high-density lipoprotein cholesterol (HDL-C), high low-density lipoprotein cholesterol (LDL-C), use of anti-hyperlipidemia agent) were measured. Multivariable logistic regression analysis was used to examine the associations between plant-based diet and dyslipidemia and individual lipid disorders. Totally, 47% of overall population had dyslipidemia. Individual in the highest quintile of uPDI had 22% greater odds of dyslipidemia (95% CI: 1·05, 1·41) and 48 % higher odds of hypertriglyceridemia (95% CI: 1·21, 1·81) and 16% higher odds of low HDL-C (OR: 1·16, 95% CI: 1·00, 1·35) than those in the lowest quintile of uPDI. PDI was associated with 16 % higher odds of low HDL-C and hPDI were associated with 25% lower odds of high LDL-C. However, Neither PDI nor hPDI was significantly associated with the prevalence of dyslipidemia. Greater adherence to unhealthful plant-based diets was associated with greater odds of the dyslipidemia and its components suggesting the importance of the quality of plant-based diet in South Korean adults for dyslipidemia prevention.


2018 ◽  
Vol 45 (8) ◽  
pp. 1174-1191 ◽  
Author(s):  
H. Daniel Butler ◽  
Starr Solomon ◽  
Ryan Spohn

A number of studies have identified “what works” in regard to the successful implementation of correctional programming over the past several decades. Few studies, however, have examined the complexities associated with programming in restrictive housing. Using data from a Midwestern department of corrections, we examined whether the provision of programming in restrictive housing achieved desired outcomes (e.g., reductions in inmate misconduct). The findings revealed the amount of time served in restrictive housing and confinement in different types of restrictive housing may influence estimations of a treatment effect. As a growing number of states seek to reform the use of restrictive housing, the proper implementation of cognitive-behavioral programming may increase institutional security and safety.


2019 ◽  
Vol 31 (3) ◽  
pp. 451-471 ◽  
Author(s):  
Karina Kenk ◽  
Toomas Haldma

Purpose The purpose of this paper is to study more deeply the use of performance information (PI) in the context of the administrative-territorial reform, e.g. amalgamation in the local governments (LG) with an example of Estonian LGs. Design/methodology/approach The case study method is adopted, using data from publicly available documents and interviews with the politicians and officials at the five merger cases of Estonian LG units. The data are interpreted and analysed using attribution theory. Findings The results show that amalgamation patterns do have an influence on PI use – in particular, the authors see that PI is reported to be used more frequently in cases of voluntary mergers, which may be related to the different motivations to make attributions in cases of voluntary and compulsory mergers. Originality/value The study contributes to the debate on the importance and usefulness of different types of PI, as financial as well as non-financial information and for different information users in the light of LG reform in Estonia as being a Central and Eastern European country.


2002 ◽  
Vol 38 (1) ◽  
pp. 43-69 ◽  
Author(s):  
SCOTT A. SCHWENTER

Many languages have two types of adversative sentence conjunctions (e.g. Spanish, German). These are normally referred to as PA and SN conjunctions. However, while PA conjunctions can be used as discourse markers (DMs) in dialogal discourse, SN conjunctions such as those found in Spanish and German cannot be used in dialogues. Thus the PA/SN distinction does not extend fully to the dialogal realm. Using data from another Spanish DM, I argue that the PA/SN distinction can be extended beyond the monologal realm of sentence conjunction to the realm of adversative discourse markers employed in dialogal discourse. The findings have implications for the question of functional equivalence across different types of discourse.


1987 ◽  
Vol 32 (7) ◽  
pp. 579-583 ◽  
Author(s):  
D.P. Harris ◽  
J.E. Cote ◽  
E.M. Vipond

Residential treatment for disturbed, particularly delinquent, adolescents has been described several decades ago by the founders and leaders of institutions. Theoretical considerations in treatment were prominent. The importance of structured milieu and the control of aggression came to acquire recognition. This study describes a structured centre, known to be effective in treating disturbed delinquents, using data gathered over twelve years of clinical work, observation and research. Factors considered essential in defining this institution are isolated and made compatible with the factors indicated by Rutter in his review of the residential treatment of delinquents. These factors are being used in a further study which compares the effectiveness of different types of facilities for a range of diagnostic categories.


Author(s):  
Carolina Castaldi

Economists have largely neglected the phenomenon of NTTMs and its consequences for society so far, partly because of their limited interest in the social returns of trademarks in general. After reviewing the handful of economic studies on this matter, I present a first systematic empirical analysis of the extent of NTTM filings, with a focus on the number of filings, their nature, and the actors behind those filings. Using data from the USPTO, I find that NTTMs are steadily increasing, they are filed by very different types of firms, but they remain a relative small phenomenon, as compared to all trademark filings. I conclude by discussing avenues for further research.


1993 ◽  
Vol 18 ◽  
pp. 142-148 ◽  
Author(s):  
Masayuki Maki ◽  
Sento Nakai ◽  
Tsuruhei Yagi ◽  
Hideomi Nakamura

The mechanisms of strong winds associated with snow clouds, and the relationship between strong winds and blowing/drifting snow, were investigated. A snowstorm occurred with a typical L-mode snow band which was generated and organized longitudinally during a continental cold-air outbreak over the Sea of Japan. Doppler radar observations revealed that the snow band consisted of small echo cells arranged along the direction of the snow band. When one of the echo cells passed, blowing/drifting snow was generated and intensified by a snow cloud-induced gust, and the horizontal visibility near the ground surface was significantly decreased. Doppler radar and radiosonde data showed that the gust was due to the cold air outflow (CAO) from the snow clouds. The leading edge of the CAO was about 9 km ahead of the center of the snow cloud and the depth of the CAO was about 600 m near the forward flank of the snow cloud. The CAO was caused by a downdraft at the center of the snow cloud, which was initiated at a height of about 1.3 km and with a velocity in excess of 1 ms−1. The observed CAO speed was explained by the theory of the gravity current.


Author(s):  
Michael J. Zhang

In this chapter, a study that investigated the roles of interpersonal trust in knowledge seeking in China is presented. Specifically, the study examined and tested the effects of two distinct types of interpersonal trust (cognition-based and sincerity-based) on Chinese employees' willingness to seeking two different types of knowledge (explicit and tacit). Using data from a survey of 243 Chinese MBA students at two universities in China, the study found both types of interpersonal trust positively related to explicit knowledge seeking as well as tacit knowledge seeking. The study also found that cognition-based trust had a stronger relationship with seeking of both explicit and tacit knowledge than sincerity-based trust. Implications for future research and practice are discussed.


2018 ◽  
Vol 878 ◽  
pp. 70-75 ◽  
Author(s):  
Jang Youl You ◽  
Sun Young Paek ◽  
Doo Kie Kim ◽  
Ki Pyo You

Soundproof tunnels and soundproof walls constructed on expressways are designed to prevent noise for the nearby surrounding residential areas. These soundproof walls and tunnels feature excellent noise prevention for residential areas nearby, but they hamper the dispersion of air pollutants generated, thus promoting the creation of heat islands during summer and cold islands during winter.The computational fluid dynamics (CFD) analysis method was used to investigate the wind flow around soundproof tunnels. The wind angle and the size of the wind velocity were determined using data from weather stations near soundproof tunnels. The CFD analysis results of the soundproof tunnels on expressways revealed that the wind velocity decreased by 30–60% following the installation of soundproof tunnels.


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