Zobrazeno 1 - 10
of 56
pro vyhledávání: '"JieChen Zhao"'
Publikováno v:
International Journal of Digital Earth, Vol 17, Iss 1 (2024)
Landfast sea ice (LFSI) is sensitive to local climate change, making it an important component of the cryosphere system. In this study, the LFSI around the pan-Arctic domain was simulated from 1979 to 2021 using a well-validated snow and ice thermody
Externí odkaz:
https://doaj.org/article/2dc0c36de98d4ec1a97c3baae5a3f430
Autor:
Changwei Liu, Guanghua Hao, Yubin Li, Jiechen Zhao, Ruibo Lei, Bin Cheng, Zhiqiu Gao, Qinghua Yang
Publikováno v:
Journal of Glaciology, Vol 68, Pp 961-976 (2022)
Based on the measurements conducted over the landfast sea ice in Prydz Bay, East Antarctica during the sea-ice growth season in 2016, various parameterization schemes in the high-resolution thermodynamic snow/ice model HIGHTSI are evaluated. The para
Externí odkaz:
https://doaj.org/article/e7abf1df85684181abad0aec6192c903
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 12, p 2306 (2023)
Liaodong Bay is one of the lowest latitude areas with seasonal sea ice cover in the Northern Hemisphere. Sea ice forecasting faces challenges in accuracy due to its low thickness. Therefore, a novel parameterization scheme for oceanic heat flux was d
Externí odkaz:
https://doaj.org/article/95558fa666984baaa19597affd9258e8
Autor:
Jiechen Zhao, Jingjing Cheng, Zhongxiang Tian, Xiaopeng Han, Hui Shen, Guanghua Hao, Honglin Guo, Qi Shu
Publikováno v:
Big Earth Data, Vol 0, Iss 0, Pp 1-12 (2022)
In this paper, snow and ice thickness products derived from an updated Fast Ice Prediction System Version 2.0 (FIPS V2.0) in Prydz Bay, East Antarctica, are introduced and compared with in-situ observations. FIPS V2.0 is comprised of a newly-develope
Externí odkaz:
https://doaj.org/article/c56030339e274947b7a7ea54ff5fd321
Publikováno v:
Remote Sensing, Vol 15, Iss 13, p 3366 (2023)
Convolutional neural networks (CNNs) have achieved great progress in the classification of surface objects with hyperspectral data, but due to the limitations of convolutional operations, CNNs cannot effectively interact with contextual information.
Externí odkaz:
https://doaj.org/article/6e432fc100a14871bbd32489389649e3
Autor:
Jiechen Zhao, Bin Cheng, Timo Vihma, Petra Heil, Fengming Hui, Qi Shu, Lin Zhang, Qinghua Yang
Publikováno v:
Annals of Glaciology, Vol 61, Pp 271-283 (2020)
A Fast Ice Prediction System (FIPS) was constructed and is the first regional land-fast sea-ice forecasting system for the Antarctic. FIPS had two components: (1) near-real-time information on the ice-covered area from MODIS and SAR imagery that reve
Externí odkaz:
https://doaj.org/article/4a1bb4db9d854bc8b3083634aaa86def
Autor:
Changwei Liu, Zhiqiu Gao, Qinghua Yang, Bo Han, Hong Wang, Guanghua Hao, Jiechen Zhao, Lejiang Yu, Linlin Wang, Yubin Li
Publikováno v:
Annals of Glaciology, Vol 61, Pp 12-23 (2020)
The surface energy budget over the Antarctic sea ice from 8 April 2016 through 26 November 2016 are presented. From April to October, Sensible heat flux (SH) and subsurface conductive heat flux (G) were the heat source of surface while latent heat fl
Externí odkaz:
https://doaj.org/article/cee72a4111d24e658f3d52937acd9e9f
Autor:
Lejiang Yu, Qinghua Yang, Mingyu Zhou, Donald H. Lenschow, Xianqiao Wang, Jiechen Zhao, Qizhen Sun, Zhongxiang Tian, Hui Shen, Lin Zhang
Publikováno v:
International Journal of Digital Earth, Vol 12, Iss 8, Pp 860-877 (2019)
Surface radiative fluxes over landfast sea ice off Zhongshan station have been measured in austral spring for five springs between 2010 and 2015. Downward and upward solar radiation vary diurnally with maximum amplitudes of 473 and 290 W m−2, respe
Externí odkaz:
https://doaj.org/article/523692440614402693b818f21bd86b70
Autor:
Lunxi Ouyang, Fengming Hui, Lixian Zhu, Xiao Cheng, Bin Cheng, Mohammed Shokr, Jiechen Zhao, Minghu Ding, Tao Zeng
Publikováno v:
International Journal of Digital Earth, Vol 12, Iss 8, Pp 893-909 (2019)
In this study, sea ice thickness (SIT) and sea ice extent (SIE) in the Bohai Sea from 2000 to 2016 were investigated. A surface heat balance equation was applied to calculate SIT using ice surface temperatures estimated from the Moderate Resolution I
Externí odkaz:
https://doaj.org/article/9c664915b6ac4683a18750f77165d3e1
Autor:
Zeliang Liao, Bin Cheng, JieChen Zhao, Timo Vihma, Keith Jackson, Qinghua Yang, Yu Yang, Lin Zhang, Zhijun Li, Yubao Qiu, Xiao Cheng
Publikováno v:
International Journal of Digital Earth, Vol 12, Iss 8, Pp 962-979 (2019)
An ice mass balance buoy (IMB) monitors the evolution of snow and ice cover on seas, ice caps and lakes through the measurement of various variables. The crucial measurement of snow and ice thickness has been achieved using acoustic sounders in early
Externí odkaz:
https://doaj.org/article/394f3585c2f341b1bd2c8dde116352b4