• Title/Summary/Keyword: The East

Search Result 15,881, Processing Time 0.051 seconds

Temporal and Spatial Variability of the Middle and Lower Tropospheric Temperatures from MSU and ECMWF (MSU와 ECMWF에서 유도된 중간 및 하부 대류권 온도의 시 ${\cdot}$ 공간 변동)

  • Yoo, Jung-Moon;Lee, Eun-Joo
    • Journal of the Korean earth science society
    • /
    • v.21 no.5
    • /
    • pp.503-524
    • /
    • 2000
  • Intercomparisons between four kinds of data have been done to estimate the accuracy of satellite observations and model reanalysis for middle and lower tropospheric thermal state over regional oceans. The data include the Microwave Sounding Units (MSU) Channel 2 (Ch2) brightness temperatures of NOAA satellites and the vertically weighted corresponding temperature of ECMWF GCM (1980-93). The satellite data for midtropospheric temperatures are MSU2 (1980-98) in nadir direction and SC2 (1980-97) in multiple scans, and for lower tropospheric temperature SC2R (1980-97). MSU2 was derived in this study while SC2 and SC2R were described in Spencer and Christy (1992a, 1992b). Temporal correlations between the above data were high (r${\ge}$0.90) in the middle and high latitudes, but low(r${\sim}$0.65) over the low latitude and more convective regions. Their values with SC2R which included the noises due to hydrometeors and surface emission were conspicuously low. The reanalysis shows higher correlation with SC2 than with MSU2 partially because of the hydrometeors screening. SC2R in monthly climatological anomalies was more sensitive to surface thermal condition in northern hemisphere than MSU2 or SC2. The first EOF mode for the monthly mean data of MSU and ECMWF shows annual cycle over most regions except the tropics. The mode in MSU2 over the Pacific suggests the east-west dipole due to the Walker circulation, but this tendency is not clear in other data. In the first and second modes for the Ch2 anomalies over most regions, the MSU and ECMWF data commonly indicate interannual variability due to El Ni${\tilde{n}$o and La Ni${\tilde{n}$a. The substantial disagreement between observations and model reanalysis occurs over the equatorial upwelling region of the western Pacific, suggesting uncertainties in the model parameterization of atmosphere-ocean interaction.

  • PDF

Spectral Characteristics of Sea Surface Height in the East Sea from Topex/Poseidon Altimeter Data (Topex/Poseidon에서 관측된 동해 해수면의 주기특성 연구)

  • 황종선;민경덕;이준우;원중선;김정우
    • Economic and Environmental Geology
    • /
    • v.34 no.4
    • /
    • pp.375-383
    • /
    • 2001
  • We extracted sea surface heights(SSH) from the TopexJPoseidon(T/P) radar altimeter data to compare with fhe SSH estimated from in-situ lide gauges(T/G) at Ulleungdo, Pohang, and SockcholMucko sites. Selection criteria such as wet/dry troposphere, ionosphere, and ocean tide were used to estimate accurate SSH. For time series analysis, the one-hour interval tide gauge SSHs were resampled al lO-day interval of the satellite SSHs. The ocean tide model applied in the altimeter data processing showed periodic aliasings of 175.5 day, 87.8 day, 62J day, 58.5 day, 49.5 day and 46.0 day, and, hence, the ZOO-day filtering was applied to reduce these spectral noises. Wavenumber correlation analysis was also applied to extract common components between the two SSHs, resulting in enhancing the correlation coefficient(CC) dramatically. The original CCs between the satenite and tide gauge SSHs are 0.46. 0.26, and 0.]5, respectively. Ulleungdo shows the largest cc bec;luase the site is far from the coast resulting in the minimun error in the satellite observations. The CCs were then increased to 0.59, 030, and 0.30, respectively, after 200.day filtering, and to 0.69, 0.63. and 0.59 after removing inversely correlative components using wavenumber correlation analysis. The CCs were greatly increased by 87, 227, and 460% when the wavenumber correlation analysis was followed by 2oo-day filtering, resulting in the final CCs of 0.86, 0.85, 0.84, respectively. It was found that the best SSHs were estimated when the two methods were applied to the original data. The low-pass filtered TIP SSHs were found to be well correlated with the TIG SSHs from tide gauges, and the best correlation results were found when we applied both low-pass filtering and spectral correlation analysis to the original SSHs.

  • PDF

Acoustic Characterization of Three Seamounts Located in the Northwest of Marshall Islands, Western Pacific (서태평양 마샬제도 북서쪽에 위치한 세 해저산에 대한 음향상 연구)

  • Lee, Tae-Gook;Lee, Kie-Hwa;Moon, Jai-Woon;Jung, Mee-Sook;Kim, Hyun-Sub;Lee, Sang-Mook
    • Journal of the Korean Geophysical Society
    • /
    • v.7 no.3
    • /
    • pp.193-206
    • /
    • 2004
  • Geophysical data including chirp (3 7 kHz) subbottom profile and detailed bathymetry were obtained over three seamounts in the Ogasawara Fracture Zone (OFZ) of the western Pacific, as a part of manganese crust survey onboard R/V Onnuri in 2003. The OFZ is a 150-km-wide, 600-km-long rift zone, which separates the East Mariana and Pigafetta Basin. The OFZ is unique in that it includes many seamounts (e.g., Magellan Seamounts andseamounts on the Dutton Ridge). The sub-seafloor acoustic echoes obtained near the OFZ were classified into following types on the basis of their characteristics: types I-1(pelagic sediment with parallel or subparallel reflectors), I-2 (pelagic sediment with no internal reflectors), and III-1 (reef build-up complex) on summit; types II-1 and III-2 (basement outcrop) on flank rift zone and upper slope, respectively; type III-3 (slump) on the lower slope and embayment between the flank rift zones; types II-2 (debrite) on the base of slope and basin floor; and types II-3 (turbidite or pelagic sediment) and II-4 (turbidite) on the basin floor. The mass-wasting that produced the complex of type II-2 debrite and III-3 slump on the lower slope and basin may have been caused by (1) strong tensional stress in the OFZ which may cause the numerous fissures or basement faults and (2) complex of the faults on the summit and steep upper slope. The variations in the echo type of pelagic sediment in the summit of seamounts may be related with the changes in the depositional and/or erosional environments. Type I-2 pelagic sediment, which is characterized by a thin and intermittent coverage, was probably deposited at a sheltered area when the current was strong, whereas type I-1 pelagic deposit occurred during a stage of progressive sedimentation.

  • PDF

Nelumbinis Semen Reverses a Decrease in $5-HT_{1A}$Receptor Binding Induced by Chronic Mild Stress, a Depression-like Symptom

  • Jang, Choon-Gon;Kang, Moon-Kyu;Cho, Jae-Han;Lee, Sun-Bok;Kim, Hyun-Taek;Park, Soon-Kwon;Lee, Jin-Woo;Park, Seong-Kyu;Hong, Moo-Chang;Shin, Min-Kyu;Shim, In-Sup;Bae , Hyun-Su
    • Archives of Pharmacal Research
    • /
    • v.27 no.10
    • /
    • pp.1065-1072
    • /
    • 2004
  • Depression is associated with a dysfunctional serotonin (5-hydroxytryptamine; 5-HT) system. More recently, several lines of evidence suggest that an important factor in the development of depression may be a deficit in the function and expression of $5-HT_{1A}$ receptors. The present study assessed if Nelumbinis Semen (N. s.) had an anti-depression effect through reversing a decrease in $5-HT_{1A}$receptor binding in rats with depression-like symptoms induced by chronic mild stress. Using a $5-HT_{1A}$ receptor binding assay, with a specific $5-HT_{1A}$receptor agonist, 8- OH-DPAT (8-hydroxy-2-(di-n-propylamino) tetralin), the mechanism of the anti-depression effect of N. s. on rats was investigated, and the effects compared with two well-known antidepressants, Hyperium Perforatum (St. Johns Wort) and fluoxetine (Prozac). Animals were divided into five groups: the normal (N) group without chronic mild stress (CMS), the control (C) group under CMS for 8 weeks, the Nelumbinis Semen (N. s.) treatment group under CMS for 8 weeks, the Hyperium Perforatum (H. p.) treatment group under CMS for 8 weeks and finally, the fluoxetine (F) treatment group under CMS for 8 weeks. Each treatment was administered to rats during the last 4 weeks of the 8-week CMS. A sucrose intake test was performed to test the anti-depression effect of N. s. The N. s. treatment significantly reversed the decreased sucrose intake under CMS (P<0.05 compared to control group under CMS). In the CA2 and CA3 regions of the hippocampus, both N. s. and H. p. reversed the CMS-induced decrease in $5-HT_{1A}$receptor binding. In the I to II regions of the frontal cortex, N. s. and H. p. also reversed the CMS-induced decrease in$5-HT_{1A}$receptor binding, and even showed a significant increase in $5-HT_{1A}$receptor binding compared to the F treatment group (N. s. vs. P, p<0.05, H. p. vs. P, p<0.05). However, in the hypothalamus, all treatments reversed the CMSinduced decrease in $5-HT_{1A}$receptor binding. This reversal effect of N. s. on the decrease in $5-HT_{1A}$receptor binding in the frontal cortex, hippocampus and hypothalamus of rat brains was very similar to that of H. p, but different from that of F. It is concluded that N. s. presents an anti-depression effect through enhancing $5-HT_{1A}$receptor binding.

Effects for the Thermal Comfort Index Improvement of Park Woodlands and Lawns in Summer (여름철 공원 수림지와 잔디밭의 온열쾌적지수 개선 효과)

  • Ryu, Nam-Hyong;Lee, Chun-Seok
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.42 no.6
    • /
    • pp.21-30
    • /
    • 2014
  • The purpose of this study was to evaluate human thermal comfort in summer by the type of greenery in parks and to explore planning solutions to supply a comfortable thermal environment in parks. The research was conducted in three different land cover types: a park with multi-wide-canopied trees(WOODLAND), park with grass(LAWN) and park with pavement(PAV) as reference sites in Hamyang-Gun SangrimPark. Field measurements of air temperature, relative humidity and wind velocity, short-wave and long-wave radiation from six directions(east, west, north, south, upward and downward) were carried out in the summer of 2014(August 21-23 and 29-30). Mean Radiant Temperature($T_{mrt}$) absorbed by a human-biometeorological reference person was estimated from integral radiation and the calculation of angular factors. The thermal comfort index PET was calculated by Rayman software, UTCI, OUT_SET$^*$ were calculated using the UTCI Calculator and the Thermal Comfort Calculator of Richard DeDear. The results showed that the WOODLAND has the maximum cooling effect during daytime, reduced air temperatures/$T_{mrt}$ by up to $5.9^{\circ}C/35^{\circ}C$ compared to PAV and lowered heat stress values despite increasing relative humidity values and decreasing wind velocity. While the LAWN had very slight cooling effects during daytime, reduced air temperatures/$T_{mrt}$ by up to $0.9^{\circ}C/3^{\circ}C$ compared to PAV, the improvement effects of the thermal comfort index was very slight. However, during nighttime the microclimatic and radiant conditions of WOODLAND, LAWN, and PAV were similar owing to the absence of solar radiation, reduction of wind velocity and an increase in relative humidity. Because the shading and evapotranspiration effects of the WOODLAND were much greater than the evapotranspiration effects of the LAWN, it can be said that the solutions for supplying comfortable thermal environment in parks are to amplify the green volumes rather than green areas. This study was undertaken to evaluate the human thermal comfort in summer of WOODLAND/LAWN parks and to determine the improvement effects of thermal comfort index. These results can contribute to the provision better thermal comfort for park users during park planning.

The Ecosystem of the Southern Coastal Waters of the East Sea, Korea I. Phytoplankton Community Structure and Primary Productivity in September, 1994 (한국 동해 남부 연안생태계 연구 1. 1994년 9월에 있어서의 식물플랑크톤의 군집구조와 1차생산력)

  • LEE Joon-Baek;HAN Myung-Soo;YANG HanR-Seob
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.31 no.1
    • /
    • pp.45-55
    • /
    • 1998
  • Phytoplankton community and primary productivity have been investigated in a fall season in the southern coastal waters of the last Sea, Korea. A strong thermocline formed at the 20\~60\;m$ layer and a cold water mass also existed in the bottom around Yong-il Bay. The offshore of the surveyed area was likely to be influenced by relatively warmer water, whereas the inshore represented Higher primary productivity with lower water temperature and lower salinity. A total of 133 species of phytoplankton occurred, representing 107 spp. of diatom, 23 spp. of dinoflagellate 3 spp. of silicoflagellate. Skeletonema costatum and Asterionellepsis glacialis were most predominant with more than $30\%$ dominance ratio, while Leptocylindrus danicus was also dominant at all transect lines. Standing crops of phytoplankton ranged from $2.7{\times}10^3\;to\;141.6{\times}10^3\;cell^{\ell-1}$. Chlorophyll a concentration varied with stations and layers, but the $30\~50$ m layer showed maximun with about $1.18{\mu}g{\ell}^{-1}$ rather than at the surface layer. It is believed that the maximun in standing crops and chlorophyll of phytoplankton formed at the $20\~50$ m layer above the thermocline during the survey. Phytoplankton primary productivity ranged from 0.32 to 3.04 mgC $m^{-3}\;hr^{-1}$, showing higher at the inshore than at the offshore. The range of integrated primary productivity was $263.3\~1085.5 mgC\;m^{-2}\;day^{-1}$ for the euphotic layer. Photosysthesis rates varied with the range from 0.76 to 8.04 mgC mgChl $\alpha^{-1}\;hr^{-1}$. Phytoplankton photosynthesis at the inshore was saturated at lower irradiance ($15\~35\%$ of surface) and showed higher efficiency, Thus, it revealed that the phytoplankton community probably adapted to the middle of euphotic layer because the depth of mixing layer became thinner due to the formation of thermocline.

  • PDF

Characteristics of the Land and River Aggregates Distribution in Goyang City, Korea (경기도 고양지역 육상 및 하천골재의 부존 특성)

  • Lee, Hoil;Byun, Uk Hwan;Ko, Kyoungtae;Youm, Seung-Jun;Ji, Sangwoo;Jo, Hwanju;Shin, Seungwon;Lee, Jin-Young
    • Economic and Environmental Geology
    • /
    • v.54 no.5
    • /
    • pp.535-547
    • /
    • 2021
  • Aggregate is an essential construction material, and the demand is increasing every year. Aggregate has different properties in each region, and it is difficult to supply it over long distances due to its quantity and weight. For the stabilization of aggregate supply and demand, regional aggregate resource surveys have been conducted since 1993 in Korea. In this study, an aggregate resource survey was conducted in Goyang City to understand the characteristics of aggregate distribution as part of the annual regional aggregate resource survey in 2020. Goyang City has a high mountainous area to the east, and the southwestern part shows a topography where a wide flatland develops. It has 18 small streams originated from the eastern mountainuos area and 1 large stream Han River. The drilling data shows that thickness of the Quaternary deposits tend to deepen toward the south. The aggregate reserves are relatively abundant, the depth of the aggregates are relatively deep. Changes in the depth of the Quaternary deposits and the amount of aggregate in Goyang are seems to be closely related to the activities of the Han River rather than the sedimentation characteristics from the upstream to the downstream of the small streams. This characteristics show a similar tendency to the distribution of aggregates in adjacent regions to the west coast in Korea. Therefore, the regions that close to west coast have a high probability of aggregate reserves around relatively large-scale streams flowing into the west coast.

Research on Traditional Performing Arts Festival - case of Kanto Festival of Akita, Japan- (전통공연예술의 축제화와 연행양상에 대하여 - 일본 아키타 간토마쓰리(竿燈祭)를 중심소재로 삼아)

  • Shin, Keun-Young
    • (The) Research of the performance art and culture
    • /
    • no.39
    • /
    • pp.549-580
    • /
    • 2019
  • There are many festivals in the region that mainly use traditional performing arts. Traditional performing arts has a story that incorporates the history of the area, and it is easy to build a brand that can be distinguished from other areas through traditional performing arts, so it has conditions that are easy to grow in the local festival it can. In this paper, I researched the relationship between the significance and regionality of regional performing arts, referring to the case where traditional performing arts, which is a joint cultural heritage of East Asia, are transmitted as a festival. The performance art with strong locality has grown into a local festival, and the Kanto Festival (竿燈) held in Akita prefecture in northeastern Japan was selected as a representative example of that area. Along with the Aomori Nebuta Festival and the Sendai Tanabata Festival, the Kanto Festival is called the 3 major festivals in the northeastern part of Japan. It was designated as an important intangible folk cultural property in 1980 and became more famous. It visited Seoul several times after the 2005 Japan-Korea Exchange Festival event. It is widely known as a regional festival that represents Japan. The Kanto Festival, which was a participatory event on a village basis, has faced problems such as the migration and aging of young people since the 1970s. In order to solve this, they led the participation of schools, educational institutions, and various groups beyond the village unit and persuaded the participation to the local companies. They have been steadily promoting free lectures on technical skills and school visit events that induce children's interest. As a result, the number of moths mobilized in the current festival has reached 250, and the Kanto tournament also shows great popularity every year.

A Study on the Korean Shamanistic Myth "Samgong Bonpoori" from the Perspective of Analytical Psychology (무가 '삼공본풀이'에 대한 분석심리학적 고찰)

  • Myung-sook Hwang
    • Sim-seong Yeon-gu
    • /
    • v.30 no.2
    • /
    • pp.145-186
    • /
    • 2015
  • This thesis discusses and analyzes Jeju island's shamanistic myth "Samgong Bonpoori" from the perspective of analytical psychology. Similar to the "I live on my fortune"-type folktales discovered in the Korean mainland, "Samgong Bonpoori" is such a widespread myth that similar folktales are found not only in East Asian regions, including Korea, Japan, and China, but also in Ireland. The essence of the story is as follows; One day, a father asked his three daughters whose fortune they lived on. The first two daughters claimed that they owe their lives to their parents. However, the youngest daughter, Gameunjang-agi, replied, against his expectation, that "I live on my own fortune," and showed her fortune and virtue were physically embodied in the line drawn from her genitals to navel. Her answer enrages his father so fiercely that she was expelled and forced to embark on a journey with no one but a black cow carrying food to accompany her. In retaliation for telling lies against her, Gameunjang-agi transformed her two sisters into a centipede and a mushroom, while her parents were turned into beggars afflicted with blindness. Afterward, Gameunjang-agi wandered around the country and eventually found love with a Chinese yam digger. Not long after, they got married, and as a couple, they stumbled upon roots of gold in fields, which brought them an incredible amount of wealth. After this miracle has happened, Gameunjang-agi began to wonder about the status of her parents and decided to organize a party for all the beggars and the blinds in the country. She eventually found her parents and got a chance to reconcile with her sisters. The story ends with her parents regaining their eyesight and Gameunjang-agi reestablishing herself as the "Goddess of Providence." "Samgong Bonpoori" is a myth about a God. A God is ontologically a supremely perfect being; however, in this thesis, it will be discussed as a part of a folktale. Gameunjang-agi can be seen as the anima archetype of the father, which reveals the process of a paternal consciousness being transformed over time. At first, her parents deny Gameunjang-agi. However, after years of suffering from blindness, they regain their eyesight and finally recognize their daughter. This signifies that Gameunjang-agi is a being that has come into the world for a certain "purpose." Gameunjang-agi embodies the creative function of "femininity" that can renew the existing collective consciousness embedded in the patriarchal system. Such recognition of femininity matters to men to a great degree as well as to women. Without knowing their true nature (femininity), the two sisters submit themselves to their parents and conventional values. Not until they suffer from being transformed and captured into small and insignificant beings, a centipede and a mushroom, which symbolize their shadow, they fail to develop their self-awareness. Meanwhile, by reconciling with her parents and sisters--playing a significant role in reuniting the family--Gameunjang-agi turns out to be a figure that can reveal what it truly means to have self-awareness and achieve Self-realization. In conclusion, this story illustrates that recognition of femininity matters to men to a great degree as well as to women, and women's Self-realization plays a critical role in revitalizing the collective consciousness embedded in the patriarchal system.

The Causes Analysis for the Number of Patients Waiting in General X-ray Room (Focus on Utilization of Quality Improvement (QI)) (일반촬영실의 환자대기건수에 대한 원인별 분석 - QI 활용을 중심으로 -)

  • Dong, Kyung-Rae;Chung, Woon-Kwan;Kim, Chang-Bok;Park, Yong-Soon;Kim, Ho-Sung;Im, In-Chul;Lee, Chang-Lae;Shin, Gyoo-Seul
    • Journal of radiological science and technology
    • /
    • v.31 no.4
    • /
    • pp.337-346
    • /
    • 2008
  • A questionaire survey was conducted for patients who had been examined at the Department of Radiology to investigate the items that need to be improved. Brainstorming was also conducted by team members to suggest the tactics that can efficiently perform the QI activity by selecting the most frequently answered topics for the reduction of waiting time of x-ray examination. From September 2006 to November 2007, number of patients before and after conducting QI was compared for 3 months by each category differentiated by types of detailed causes. A patient case was set as one shooting for one patient. After conducting QI, the waiting cases before conducting QI were evaluated for the method of improvement for 3 month through the QI team discussion and conducted by following the improvement method for the next 1 month and the waiting cases were measured and the difference before and after the QI activity was compared in percentage. 1. When patient waiting cases were compared before and after conducting QI activity against the causes of repetition, it resulted in 3.9% of reduction effect. 2. When patient waiting cases were compared before and after conducting QI activity against the causes for the lack of guiding, it resulted in 1.1% of reduction effect. 3. When patient waiting cases were compared before and after conducting QI activity against the causes of miss-inputting prescription, it resulted in 1.1% of reduction effect. 4. When patient waiting cases were compared before and after conducting QI activity against the causes for emergency patients, patients with acute pain and discomfort patients, it resulted in 12.0% of reduction effect. 5. When patient waiting cases were compared before and after conducting QI activity against the causes for shooting overlapping of outpatients and hospitalized patients, it resulted in 4.7% of reduction effect. There are many factors to reduce the patient waiting cases in radiography. The first step is for radiology department to find these factors through QI, to improve them, which is the reason why the QI team is organized to perform the QI activities.

  • PDF