Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Jungho Cho"'
Autor:
Shuangjing Xu, Taehyun Jung, Bo Zhang, Ming Hui Xu, Do-Young Byun, Xuan He, Nobuyuki Sakai, Oleg Titov, Fengchun Shu, Hyo-Ryoung Kim, Jungho Cho, Sung-Moon Yoo, Byung-Kyu Choi, Woo Kyoung Lee, Yan Sun, Xiaofeng Mai, Guangli Wang
Publikováno v:
The Astronomical Journal, Vol 168, Iss 5, p 219 (2024)
Extending geodetic and astrometric Very Long Baseline Interferometry (VLBI) observations from traditional centimeter wavebands to millimeter wavebands offers numerous scientific potentials and benefits. However, it was considered quite challenging du
Externí odkaz:
https://doaj.org/article/497d7b789b4848649ae3e39a6ea9864a
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 36, Iss 1, Pp 11-20 (2019)
Being a torque free motion of the rotating Earth, Chandler wobble is the major component in the Earth’s polar motion with amplitude about 0.05-0.2 arcsec and period about 430-435 days. Free core nutation, also called nearly diurnal free wobble, exi
Externí odkaz:
https://doaj.org/article/e1643b8224f344ad820befa8da528e34
Autor:
Sung-Ho Na, Wenbin Shen, Jungho Cho, Kiweon Seo, Young-Hong Shin, Kwan-Dong Park, Kookyoun Youm, Sung-Moon Yoo
Publikováno v:
Geodesy and Geodynamics, Vol 10, Iss 1, Pp 37-41 (2019)
The global oceanic/atmospheric tides exert decelerating/accelerating secular torques on the Earth rotation. We developed new formulations to accurately calculate amounts of two kinds of secular tidal torques. After Melchior, we found that an addition
Externí odkaz:
https://doaj.org/article/e2b20957a03c4ae78b56864cfa0b0be1
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 29, Iss 6, Pp 721-729 (2018)
Northern Eurasian continent has been regarded to contribute as the major source area, of which seasonal atmospheric pressure loading and unloading cycle leads to the annual wobble of the Earth. In the early days when reliable data of global coverage
Externí odkaz:
https://doaj.org/article/2151185ba0af444c8e265be1b4e5aaf1
Autor:
Sung-Ho Na, Jungho Cho, Tu-Hwan Kim, Kiweon Seo, Kookhyoun Youm, Sung-Moon Yoo, Byungkyu Choi, Hasu Yoon
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 33, Iss 4, Pp 295-304 (2016)
The atmosphere strongly affects the Earth’s spin rotation in wide range of timescale from daily to annual. Its dominant role in the seasonal perturbations of both the pole position and spinning rate of the Earth is once again confirmed by a compa
Externí odkaz:
https://doaj.org/article/2429f0495aa443ddbd7cdd237f24f1cb
Autor:
Younghee Kwak, Jungho Cho
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 30, Iss 4, Pp 315-320 (2013)
Space geodetic techniques can be used to obtain precise shape and rotation information of the Earth. To achieve this, the representative combination solution of each space geodetic technique has to be produced, and then those solutions need to be c
Externí odkaz:
https://doaj.org/article/22f10a357d8a4c3ca47c53b4a0779230
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 29, Iss 3, Pp 295-303 (2012)
In this study, we compared the precipitable water vapor (PWV) data derived from the radiosonde observation data at Sokcho Observatory and the PWV data at Sokcho Global Positioning System (GPS) Observatory provided by Korea Astronomy and Space Science
Externí odkaz:
https://doaj.org/article/2ebc60fae46a428888f7f80070830a4f
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 29, Iss 1, Pp 1-10 (2012)
In this study, global positioning system (GPS)-derived precipitable water vapor (PWV) and microwave radiometer (MWR)-measured integrated water vapor (IWV) were compared and their characteristics were analyzed. Comparing those two quantities for two
Externí odkaz:
https://doaj.org/article/ac26f9b6260b4dae820c810e46e2c8ee
Autor:
Chang-Geun Park, Jungho Cho
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 4, Pp 367-375 (2010)
In this study, we compared the precipitable water vapor (PWV) data derived from the radiosonde observation data at Sokcho Observatory and the PWV data at Sokcho Global Positioning System (GPS) Observatory provided by Korea Astronomy and Space Scien
Externí odkaz:
https://doaj.org/article/039fa9ccc3734f718a7e72af03698454
Autor:
Dong-Hyo Sohn, Jungho Cho
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 3, Pp 231-238 (2010)
We analyzed global positioning system (GPS)-derived precipitable water vapor (PWV) trends of the Korea Astronomy and Space Science Institute 5 stations (Seoul, Daejeon, Mokpo, Milyang, Sokcho) where Korea Meteorological Administration meteorologica
Externí odkaz:
https://doaj.org/article/dd85fcc182e74390bc9cfe202dca508e