Zobrazeno 1 - 10
of 227
pro vyhledávání: '"Timo Vihma"'
Autor:
Zhi-Lun Zhang, Feng-Ming Hui, Timo Vihma, Mats A. Granskog, Bin Cheng, Zhuo-Qi Chen, Xiao Cheng
Publikováno v:
Advances in Climate Change Research, Vol 14, Iss 3, Pp 347-362 (2023)
The surface energy budget is crucial for Arctic sea ice mass balance calculation and climate systems, among which turbulent heat fluxes significantly affect the air–sea exchanges of heat and moisture in the atmospheric boundary layer. Satellite obs
Externí odkaz:
https://doaj.org/article/95db13ce6f674e00be75306529f43db6
Publikováno v:
Environmental Research Letters, Vol 19, Iss 9, p 094001 (2024)
This study investigates the long-term variability of the relationship between the El Niño South/Oscillation (ENSO) and the South Atlantic Subtropical Dipole (SASD), and their connection to multidecadal variations in the North Atlantic sea surface te
Externí odkaz:
https://doaj.org/article/5f2eb50a14d1449a8517f14935d00846
Autor:
Mika Rantanen, Alexey Yu. Karpechko, Antti Lipponen, Kalle Nordling, Otto Hyvärinen, Kimmo Ruosteenoja, Timo Vihma, Ari Laaksonen
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-10 (2022)
Over the past four decades, Arctic Amplification - the ratio of Arctic to global warming - has been much stronger than thought, and is probably underestimated in climate models, suggest analyses of observations and the CMIP5 and CMIP6 simulations.
Externí odkaz:
https://doaj.org/article/1397abd5a70848d4aa1dc861b9a3d864
Autor:
Lars Aue, Leonie Röntgen, Wolfgang Dorn, Petteri Uotila, Timo Vihma, Gunnar Spreen, Annette Rinke
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
We utilize a nudged simulation with the coupled regional atmosphere-ocean-sea ice model HIRHAM–NAOSIM over the Arctic to conduct an in-depth analysis of the impact of a sequence of three intense cyclones on the sea ice cover in the Barents and Kara
Externí odkaz:
https://doaj.org/article/900fff6691a049459c06631f2f05dd55
Publikováno v:
npj Climate and Atmospheric Science, Vol 4, Iss 1, Pp 1-14 (2021)
Abstract The underlying mechanisms for Arctic sea ice decline can be categories as those directly related to changes in atmospheric circulations (often referred to as dynamic mechanisms) and the rest (broadly characterized as thermodynamic processes)
Externí odkaz:
https://doaj.org/article/21d8779972de4f4f944494aac96ace32
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
Publikováno v:
Annals of Glaciology, Vol 61, Pp 309-319 (2020)
Snow and ice were monitored by thermistor-string-based Snow and Ice Mass Balance Array (SIMBA) in Lake Orajärvi in northern Finland. An existing automatic SIMBA-algorithm was further developed to derive air/snow, snow/ice and ice/water interfaces ba
Externí odkaz:
https://doaj.org/article/5baf70d14416498f8cdbfe27dd1571ec
Publikováno v:
Annals of Glaciology, Vol 61, Pp 441-453 (2020)
The Arctic winter seasonal sea ice (WSSI) concentration from 1979 to 2019 is derived from passive microwave data. Based on Empirical Orthogonal Function (EOF) analysis, the WSSI time series includes regionally different trends, abrupt shifts and inte
Externí odkaz:
https://doaj.org/article/626877535c8c46cf871decf8f50114dd
Publikováno v:
Environmental Research: Climate, Vol 2, Iss 4, p 041004 (2023)
Antarctic sea ice concentration anomalies (ASICA) have been found to be linked to sea surface temperature anomalies in tropical oceans. However, it is not clear whether and how ASICA is linked to the Atlantic Niño mode (ANM). This study demonstrates
Externí odkaz:
https://doaj.org/article/ec8c513efc814d81b7036bdc4d8ade7f
Publikováno v:
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 72, Iss 1, Pp 1-19 (2020)
Applying the daily ERA-interim reanalysis data from 1979 to 2016, we found that widespread cold (warm) wintertime extreme events in Northern Europe occurred most frequently in winter 1984–1985 (2006–2007). These events often persisted for multipl
Externí odkaz:
https://doaj.org/article/771715aacf284e3f8a1430b577129924