Dating region in Cheongju South Korea

Time Difference to major World Cities. Continent Asia. States Jeju-do. North Chungcheong. Busan Busan. Incheon Incheon. Daegu Daegu.

What they offer

Daejeon Daejeon. Gwangju Gwangju. Suwon Gyeonggi-do.

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Goyang-si Gyeonggi-do. Seongnam-si Gyeonggi-do. Ulsan Ulsan. Bucheon-si Gyeonggi-do.

Jeonju Jeollabuk-do. Ansan-si Gyeonggi-do. Cheongju-si North Chungcheong. Anyang-si Gyeonggi-do. Changwon Gyeongsangnam-do.

Pohang Gyeongsangbuk-do. Uijeongbu-si Gyeonggi-do. Hwaseong-si Gyeonggi-do. Masan Gwangju. Jeju City Jeju-do. Cheonan Chungcheongnam-do. Kimhae Gyeongsangnam-do. Chinju Gyeongsangnam-do. Yeosu Jeollanam-do. Gumi Gyeongsangbuk-do. Iksan Jeollabuk-do. Mokpo Jeollanam-do. Gunsan Jeollabuk-do. Suncheon Jeollanam-do. Sejong Sejong-si. Chuncheon Gangwon-do. Icheon-si Gyeonggi-do. Guri-si Gyeonggi-do. Gangneung Gangwon-do.

Yangju Gyeonggi-do. Osan Gyeonggi-do. Seogwipo Jeju-do. Gyeongju Gyeongsangbuk-do. Gimcheon Gyeongsangbuk-do. Jeongeup Jeollabuk-do. Is it free to enter this place? Are the prices for this place or activity budget-friendly? Is this attraction a good picnic spot? Would you recommend this place or activity to a friend looking for an exciting and thrill-seeking experience? Is this attraction a good place to visit on a honeymoon? Thanks for helping!

Share another experience before you go. Full view. Best nearby. Outback Cheongju Gakyung Store. Gochu Dumpling Soup House. Cheongju National Museum. Cheongju Early Printing Museum. Write a review. Traveller rating. Selected filters. Steven R wrote a review Apr. Rye, Australia 1, contributions helpful votes. A long walk around a ruined wall. I was disappointed in that all there is to see is some temple style fixtures attached to the wall and a 4. You can take little walks through the middle but this time of year you only got to see bare trees. Read more. Although a year-long — CE ring-width chronology was established through many dated archaeological woods of Pinus densiflora known as the red pine , which has been used to date as the most common archaeological woods in Korea [ 14 , 15 , 16 ], long chronologies have not yet been established using other tree species from various regions.

Various local master chronologies comprising different tree species from different regions are required for successful tree-ring dating, because the annual patterns of the ring widths vary depending on the tree species and locations. To this end, archaeological woods containing various tree species need to be found in archaeological relics, buildings, and artifacts, which cover long time range without any interruption. According to past studies [ 17 , 18 , 19 , 20 ], tree species used for buildings, Buddhist statues, furniture and charcoals were different in some cases with respect to time and region in the Republic of Korea.

Due to a lack of long local master chronologies for various tree species, most studies on dating archaeological woods rely on the radiocarbon dating method [ 21 , 22 , 23 ].

With the help of developed equipment, measured values of different cell traits, such as cell size, wall thickness and density [ 9 , 24 , 25 ], and stable isotopes such as carbon and oxygen [ 26 , 27 , 28 , 29 ] were used to establish inter-annual time series for dendrochronological research. For instance, Li et al. Furthermore, Jessica et al. Pinus densiflora, Abies koreana, Taxus cuspidata, and Quercus mongolica , from Jirisan National Park in Korea, by using four trees per tree species [ 36 ].

The results are expected to offer useful tips to the dendrologists who lack the necessary resources for reliable dating of archaeological woods using ring-width data, and those who are interested in investigating the past climate of Korea.

All of them were already cross-dated using ring-width data for publications [ 36 , 37 ]. At Songnisan National Park, two tree species, viz. Pinus densiflora and Quercus mongolica , and at Jirisan National Park, four tree species, viz. Taxus cuspidata , Pinus koraiensis , Abies koreana , and Quercus mongolica , were chosen as experimental tree species, which are also the dominant species at high altitude of Songnisan [ 38 ] and Jirisan National Parks [ 39 , 40 ]. The plate method [ 29 ] was conducted to facilitate the processing of several rings simultaneously.

First, an increment core was transversely cut into several 1-mm-thick wood plates using a diamond wheel saw, and then the plates were sandwiched between 1-mm-thick Teflon-punch sheets Fig. Owing to contamination in the process of cellulose extraction, two individual tree cores collected from Q.

The t -value and Glk scores are well-known parameters which represent the matching strength between time series at a certain overlapping position in dendrochronology [ 44 ]. The t -values were calculated using the correlation coefficients between time series and the number of their overlapping years Eq. We also used the expressed population signal EPS to evaluate the chronology signal strength [ 27 , 45 ]. The EPS can be described as shown in Eq. The suggested threshold value was higher than 0. Due to operating error of the equipment, however, two Q.

In addition, the mean t -values min. In all the above cases, the conifer tree species at Jirisan National Park showed higher t -values and Glk scores than that at Songnisan National Park; however, Q. Except the t -value between P. The oxygen isotope ratios of the tree-ring cellulose were primarily determined by evaporative enrichment of leaf water 18 O, which was modulated by relative humidity at the site [ 26 , 27 ]. Unlike Q. According to previous publication [ 31 ], such results might occur from differences in the fraction of carbohydrate oxygen that undergoes exchange with oxygen of xylem water, the net fractionation factor between them, differences in root depth and growing seasons of the tree species.

By contrast, for the Jirisan National Park, the former was higher than 0. Except Q. In this result, the R bar from each group, consisting of the same tree species showed high values, so that EPS higher than the threshold value 0. Only EPS from Q. It turned out that the mean t -value and Glk score were 3.

In addition, the local chronologies showed a significant correlation of 0. It should also be noted that there are significant linear relationships between April temperatures of Songnisan and Jirisan National Parks, and between the July temperatures of them as well Fig. Linear relationships between April temperatures and between July temperatures of Songnisan and Jirisan National Parks.

In order to date wooden materials using tree-ring chronology, establishing a long chronology using the same tree species growing under similar environmental condition is a fundamental requirement [ 49 ].