Search Results (28)

This study assessed vegetation recovery at Jeongseon Alpine Stadium, Mt. Gariwang, 5 years after the 2018 PyeongChang Winter Olympics to aid in restoration planning. A total of 50 quadrats were surveyed across undisturbed areas, forest edges, and damaged areas at different altitudes. Species occurrences were recorded using a tabulation method to identify characteristic and differential species based on disturbance type. Importance value analysis showed that tree layers were present only in undisturbed areas at all altitudes, while shade-intolerant species, such as Amur choke cherry (P. glandulifolia), had high importance in the subtree layer in low-altitude damaged areas and mid-altitude forest edges. Species diversity was higher in forest edges at medium and high altitudes, whereas control areas exhibited higher diversity at low altitudes. DCA ordination revealed distinct community groupings based on altitude and disturbance type, indicating community heterogeneity. The study found rapid vegetation recovery in damaged areas and forest edges, driven by shade-intolerant species. Restoration efforts should prioritize these species to support successful recovery. Full article

This research builds on previous mega event research that found that policymakers must understand citizens’ perceptions of mega events and the long-term effects it has on their community to create positive and sustainable legacies. The present study provides new insights and understanding of the social impact of the 2002 Salt Lake City Winter Olympics on Heber Valley. Using the well-established systemic model of community and quantitative survey data from 1999 until 2003, as well as waves from 2007, 2012, and 2018 data, we investigate, first, if community attachment, satisfaction, and desirability changed over time and, second, how enduring feelings about the Olympics affected community sentiment. Our research finds that there were some changes in residents’ community experience over time; community attachment decreased during 2018, community satisfaction decreased in 2001, 2007, and 2018, and community desirability increased slightly in 2002. We also found that the legacies of the 2002 Winter Olympics do influence how residents feel about their community. Full article

The Women’s Slope Style event of 11–12 February 2018 at the PyeongChang 2018 Olympic Winter Games posed considerable challenges to the competitors and decision-makers, requiring sub-kilometer and sub-minute weather predictions in complex terrain. The gusty wind conditions were unfair and unsafe as the competitors could not achieve sufficient speed to initiate or complete their jumps. The term micro-nowcasting is used here to reflect the extreme high-resolution nature of these science and service requirements. The World Meteorological Organization has conducted several research development and forecast demonstration projects to advance, accelerate and promote the art of nowcasting. Data from compact automatic weather stations, located along the field of play, reported every minute and were post-processed using time series, Hovmöller and wavelet transforms to succinctly present the information. The analyses revealed dominant frequencies of about 20 min, presumed to be associated with vortex shedding from the mountain ridges, but were unable to directly capture the gusts that affected the competitors. The systemic challenges from this and previous projects are reviewed. They include the lack of adequate scientific knowledge of microscale processes, gaps in modeling, the need for post-processing, forecast techniques, managing ever-changing service requirements and highlights the role of observations and the critical role of the forecaster. These challenges also apply to future high-resolution operational weather and warning services. Full article

Utah’s Heber Valley has experienced rapid and (relatively) sustained growth since the 1990s, in part due to being chosen as a host venue for the 2002 Winter Olympics. As conditions in the Valley changed by virtue of this growth, individuals had to redefine their relationship with their community at large, as well as what community means to them individually. As individuals integrate new conditions into their imagined communities, they are also required to imagine communities in ways they never have before. The community’s story is rewritten simultaneously along with individuals’ own stories. These changing stories are shaped and indicated by the reconstruction of residents’ narratives about their community, i.e., their community stories. In this paper, we (1) explore how Heber Valley residents’ narratives change as a result of preparing for, participating in, and recovering from the Olympics, (2) verify these findings using survey data gathered during the same time period, and (3) examine how changes in residents’ narratives in Heber Valley impacted the subjective evaluation of community. To do so, we rely on longitudinal data gathered among principal communities in Heber Valley with additional data generated from a hermeneutic content analysis of archival data found in the area’s community newspaper (The Wasatch Wave). Survey data were gathered once a year over a five-year period from February 1999 through February 2003, with additional waves gathered in February 2007, 2012, and 2018. Our results indicated that the community narratives did change as a result of the Olympics, our survey data verified these community changes over time, and changes in residents’ community stories impacted survey responses when residents were asked about community sentiments. Full article

Due to the increasing number of events around the world, event sustainability is an area of research relevant across disciplines. Research has found that event sustainability encompasses economic, environmental, and social legacies. However, events may face unforeseen challenges, sometimes even major scandals. How do these scandals impact residents and the sustainable legacy of the mega-event? As a historical case study, we explore social aspects of event sustainability in the wake of the 2002 Winter Olympics bid scandal, where it was reported that the Salt Lake Olympic Committee (SLOC) bribed members of the International Olympic Committee (IOC) to secure votes in favor of Salt Lake City hosting the 2002 Winter Olympic. Despite the bribery scandal, the Salt Lake City Games were considered a success by the media and members of the SLOC and IOC. Specifically, the present study investigates local residents’ perceptions of the scandal before, during, and after the Olympics using data gathered from 1999 to 2018 in Heber Valley, Utah. We find that time is a significant predictor of residents’ feelings toward the scandal. Further, feelings towards the Olympics, community desirability, race, and biological sex are also significant predictors. These findings lead us to conclude that the effects of the scandal on the Olympics’ sustainable legacy fade away over time. Full article

The Jeongseon Alpine Center, a degraded forestland, has a very unique soil feature as it was filled with soil cut from the nearby area and has not yet been rehabilitated since the end of the 2018 Winter Olympics. Therefore, this study attempted to identify a way to establish a stable and efficient planting groundwork to successfully restore this distinctive region. Six different planting groundworks, control, biochar, leaf-mold, mulching, tillage, and polyacrylamide treatments were constructed in September 2020. Soil-related indices have been tracked while the growth and physiological responses of planted Pinus densiflora (Pd) and Larix kaempferi (Lk) seedlings were monitored until May 2022. Mulching had 2–4 times the average SWC when compared to the control. Simultaneously, there was the least variation in soil temperature change, and total soil loss was only 0.05 ton/ha. Similarly, the leaf-mold had a relatively high SWC, and soil fertility increased, while total soil loss was 6.37 tons/ha, indicating a high trend in line with biochar. The Pd leaf-mold had the highest in A_max, E, g_s, and J_max. Furthermore, following the leaf-mold, mulching showed the second-highest photosynthetic indices in general, and the height and DRC also demonstrated favorable results in the above two treatments. Mulching had 1.6 to 2.2 times higher than the control group in PI_abs and PI_total, which represent photosynthetic vitality, so the impact on environmental stress was thought to be less than that of leaf-mold. The mulching of Lk showed the greatest growth and physiological responses, Nonetheless, the photosynthetic indices were rather low when compared to Pd, with no discernible differences across treatments. As a result, the considerable effect of the planting groundwork method could not be demonstrated. Therefore, in the case of Pd, the leaf-mold showed the best growth and physiological response. Nevertheless, in terms of soil temperature maintenance and soil loss for slope stability, mulching is assessed to be the most ideal planting groundwork method. Full article

This study examined residents’ quality of life contexts due to the mega-events (F1 Korean Grand Prix 2010 and 2018 Pyeongchang Winter Olympics) based on an insider’s perspective (emic approach). The study investigated the residents’ quality of life contexts due to hosting the mega-events, which are suitable for understanding changes in social patterns among residents. Specifically, the study investigated diverse phenomena surrounding two mega-events and their relation to the quality of life with qualitative methods of participant observation and in-depth interviews. The phenomenon for the quality of life represented socioeconomic effect, educational impact on the local community, infrastructure development, recreational and cultural experience, emotional use of life, community spirit, and direct economic exchange. The subject phenomenon of quality of life examined the Residents’ Perception of Quality of Life, Subjective Expectations and Exchange, and the Relationship Model. The relationship model shows that the mega-event host community residents’ daily life experience from the individual or collective social exchanges influences their perception of the quality of life and the areas of life. Meanwhile, the factors, including individual social interaction, recreational and cultural experience, and the emotional use of life, positively or negatively influence the residents’ perception of the quality of life. Finally, the standards and procedures of the perception of the quality of life appear different depending on the type of residents and whether they have direct economic exchange experience. Full article

The mass start speed skating (MSSS) is a new event for the 2018 PyeongChang Winter Olympic Games. Considering that the event rankings were based on points gained on laps, it is worthwhile to investigate the pacing behaviors on each lap that directly influence the skater’s ranking at the end of the race. To the best of our knowledge, this is the first study investigating the pacing behavior on the MSSS. The aim of this study was to analyze the pacing behaviors and performance on MSSS regarding skaters’ level (SL), competition stage (semi-final/final) (CS), and gender (G). All the male and female races in the World Cup and World Championships were analyzed during the 2018–2019 and 2019–2020 seasons. As a result, a total of 601 skaters (male = 350 and female = 251) from 36 games (male = 21 and female = 15) were observed. The one-way ANOVA for repeated measures was used to compare skaters’ pacing behavior on each lap, and the three-way ANOVA for repeated measures was used to identify the influence of SL, CS, and G on skaters’ pacing behaviors and total time spent. In general, the results showed that the pacing behaviors from fast to slow were group one (laps 4, 8, 12, 15, 16), group two (laps 5, 9, 13, 14), group three (laps 3, 6, 7, 10, 11), and group four (laps 1 and 2) (p ≤ 0.001 for all groups). For CS, the total time spent in the final was less than the semi-final (p ≤ 0.001). For SL, top-level skaters spent less total time than the middle-level and low-level skaters (p ≤ 0.002), while there was no significant difference between the middle and low levels (p = 0.214). For G, the male skaters spent less total time than females on all laps (p ≤ 0.048). Current findings could help coaching staff to better understand the pacing behaviors regarding SL, CS, and G. In particular, the identified performance trends may allow controlling for pacing strategy and decision making before and during the race. Full article

This study investigates the effects of the Olympic announcement and the actual event on property values in the host region using the case of the 2018 PyeongChang Winter Olympic Games. We collected Korean government-issued apartment transaction data in the host city, Gangneung, and other cities. We performed propensity score matching to generate a suitable control group compared to units in Gangneung and exploited difference-in-difference analyses to test the impact of the announcement and the actual event separately. The results show that the Olympic announcement increased property values in Gangneung by 5.5% compared to propensity-matched units, and the effects are mostly shown in units in downtown Gangneung. Units close to the KTX station and the Olympic arena observed additional increases in housing prices. During the actual Olympic event, property values in Gangneung increased by 8.3% after the KTX station opened, but the actual event period and Athletes’ Village opening did not generate additional effects. The additional increases in housing prices close to the opening of the KTX station were found for units close to the KTX station, the Olympic arena, and Athletes’ Village. Full article

The microphysical parameters of snowfall directly impact hydrological and atmospheric models. During the International Collaborative Experiment hosted at the Pyeongchang 2018 Olympic and Paralympic Winter Games (ICE-POP 2018), dual-frequency radar retrievals of particle size distribution (PSD) parameters were produced and assessed over complex terrain. The NASA Dual-frequency Dual-polarized Doppler Radar (D3R) and a collection of second-generation Particle Size and Velocity (PARSIVEL²) disdrometer observations were used to develop retrievals. The conventional look-up table method (LUT) and random forest method (RF) were applied to the disdrometer data to develop retrievals for the volume-weighted mean diameter (D_m), the shape factor (mu), the normalized intercept parameter (N_w), the ice water content (IWC), and the snowfall rate (S). Evaluations were performed between the D3R radar and disdrometer observations using these two methods. The mean errors of the retrievals based on the RF method were small compared with those of the LUT method. The results indicate that the RF method is a promising way of retrieving microphysical parameters, because this method does not require any assumptions about the PSD of snowfall. Full article

Microbial communities in sediment play an important role in the circulation of nutrients in aquatic ecosystems. In this study, the main environmental factors and sediment microbial communities were investigated bimonthly from August 2018 to June 2020 at River Taizicheng, a shallow temperate mountain river at the core area of the 2022 Winter Olympics. Microbial community structure was analyzed using 16S rRNA genes (bacteria 16S V3 + V4 and archaea 16S V4 + V5) and high-throughput sequencing technologies. Structure equation model (SEM) and canonical correspondence analysis (CCA) were used to explore the driving environmental factors of the microbial community. Our results showed that the diversity indices of the microbial community were positively influenced by sediment nutrients but negatively affected by water nutrients. Bacteroidetes and Proteobacteria were the most dominant phyla. The best-fitted SEM model indicated that environmental variables not only affected community abundance directly, but also indirectly through influencing their diversity. Flavobacterium, Arenimonas and Terrimonas were the dominant genera as a result of enriched nutrients. The microbial community had high spatial–temporal autocorrelation. CCA showed that DO, WT and various forms of phosphorus were the main variables affecting the temporal and spatial patterns of the microbial community in the river. The results will be helpful in understanding the driving factors of microbial communities in temperate monsoon areas. Full article

This study characterizes high-altitude training camps and their effect on the aerobic capacity of a Polish national team member (M.W.), who was a participant in the PyeongChang 2018 Winter Olympic Games (body weight: 59.6 kg, body height: 161.0 cm, fat mass: 10.9 kg and 18.3% of fat tissue, fat-free mass: 48.7 kg, muscle mass: 46.3 kg, and BMI = 23.0 kg/m²). The tests were conducted in the periods from April 2018 to September 2018 and April 2019 to September 2019 (period of general and special preparation). The study evaluated aerobic and anaerobic capacity determined by laboratory tests, a cardiopulmonary graded exercise test to exhaustion performed on a cycle ergometer (CPET), and the Wingate anaerobic test. Based on the research, training in hypobaric conditions translated into significant improvements in the skater’s exercise capacity recorded after participating in the Olympic Winter Games in Korea (February 2018). In the analyzed period (2018–2019), there was a significant increase in key parameters of aerobic fitness such as anaerobic threshold power output (AT-PO) [W]—223; power output POmax [W]—299 and AT-PO [W/kg]—3.50; (POmax) [W/kg]—4.69; and AT-VO₂ [mL/kg/min]—51.3; VO₂max [mL/kg/min]—61.0. The athlete showed high-exercise-induced adaptations and improvements in the aerobic metabolic potential after two seasons, in which four training camps were held in altitude conditions. Full article

The performance of humanoid robots is improving, owing in part to their participation in robot games such as the DARPA Robotics Challenge. Along with the 2018 Winter Olympics in Pyeongchang, a Skiing Robot Competition was held in which humanoid robots participated autonomously in a giant slalom alpine skiing competition. The robots were required to transit through many red or blue gates on the ski slope to reach the finish line. The course was relatively short at 100 m long and had an intermediate-level rating. A 1.23 m tall humanoid ski robot, ‘DIANA’, was developed for this skiing competition. As a humanoid robot that mimics humans, the goal was to descend the slope as fast as possible, so the robot was developed to perform a carved turn motion. The carved turn was difficult to balance compared to other turn methods. Therefore, ZMP control, which could secure the posture stability of the biped robot, was applied. Since skiing takes place outdoors, it was necessary to ensure recognition of the flags in various weather conditions. This was ensured using deep learning-based vision recognition. Thus, the performance of the humanoid robot DIANA was established using the carved turn in an experiment on an actual ski slope. The ultimate vision for humanoid robots is for them to naturally blend into human society and provide necessary services to people. Previously, there was no way for a full-sized humanoid robot to move on a snowy mountain. In this study, a humanoid robot that transcends this limitation was realized. Full article

Efficient ecological restoration techniques are urgently required to minimize seed consumption and labor requirements. Here, we determined the optimal sowing period for two native species, Agastache rugosa (Korean mint) and Astilbe rubra (False goat’s beard), toward their use for ecological restoration of Mt. Gariwang, a site damaged by the 2018 PyeongChang Winter Olympics’ activities. We investigated the effects of daily mean temperature (DMT) and daily temperature range (DTR) on seed germination percentage, which decreased for both species with decreasing DTR and was optimal at a DMT of 25 °C and 17.5 °C for A. rugosa and A. rubra, respectively. We developed a single multiple regression equation that evaluated the effects of DMT and DTR simultaneously and determined the temperature scores when the germination percentage reached 85%. We applied the developed multiple regression equation by analyzing the temperature data of the restoration site. In addition, precipitation data analysis was added to set the optimal sowing period. As a result, the optimal sowing period for the two species was determined from May 21 to the end of May. This makes it possible to minimize seed consumption and labor requirements when sowing seeds. The model developed herein will be useful not only to guide the ecological restoration of Mt. Gariwang, but also for other regions using site-specific temperature data. Full article

Given the growing need for hosts of sports mega-events to provide concrete plans for a sustainable sports mega-event at the bidding stage, it is perhaps surprising that there has not been more research on the actual implementation of the legacy plan in terms of sustainability. The main aim of this paper is to do just that: to analyse an empirical example of the implementation of the sustainability legacy plan for the PyeongChang 2018 Winter Olympic Games. Through an empirical analysis, the research methods used to collect the data are document analysis and semi-structured interviews with stakeholder sampling (16 documents and 10 interviewees). The paper uncovers the difficulties the PyeongChang Games encountered in achieving the sustainable legacy planned in the bid files through an evaluation of the implementation of PyeongChang’s legacy strategy in the context of South Korea. Part of the findings reveal that Gangwon Province and South Korea achieved their strategic goals set out in advance of the PyeongChang Olympics as an effective tool for promoting regional development. One of the main obstacles to the sustainability of the PyeongChang Olympics was the lack of a clear plan for the post-Games use of Olympics venues and conflicts of interest among stakeholders of the PyeongChang Winter Games. Full article