19 Result(s)
within
Qi Shu
Oceanography
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Article
Long-term ocean temperature trend and marine heatwaves
Marine heatwaves (MHWs) can cause irreversible damage to marine ecosystems and livelihoods. Appropriate MHW characterization remains difficult, because the choice of a sea surface temperature (SST) temporal ba...
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Article
FIO-ESM v2.0 CORE2-forced experiment for the CMIP6 Ocean Model Intercomparison Project
We introduced the Coupled Model Intercomparison Project Phase 6 (CMIP6) Ocean Model Intercomparison Project CORE2-forced (OMIP-1) experiment by using the First Institute of Oceanography Earth System Model vers...
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Article
Arctic sea ice concentration and thickness data assimilation in the FIO-ESM climate forecast system
To improve the Arctic sea ice forecast skill of the First Institute of Oceanography-Earth System Model (FIO-ESM) climate forecast system, satellite-derived sea ice concentration and sea ice thickness from the ...
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Article
Modelling the annual cycle of landfast ice near Zhongshan Station, East Antarctica
A high resolution one-dimensional thermodynamic snow and ice (HIGHTSI) model was used to model the annual cycle of landfast ice mass and heat balance near Zhongshan Station, East Antarctica. The model was forc...
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Article
The role of bias correction on subseasonal prediction of Arctic sea ice during summer 2018
Subseasonal Arctic sea ice prediction is highly needed for practical services including icebreakers and commercial ships, while limited by the capability of climate models. A bias correction methodology in thi...
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Article
Quantifying the importance of interannual, interdecadal and multidecadal climate natural variabilities in the modulation of global warming rates
Despite the monotonically rising greenhouse gas emission, global warming rate changes again and again, especially the slowdown during 1998–2013, challenging the current global temperature change mechanisms. Re...
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Article
Open AccessAssessment of the Atlantic water layer in the Arctic Ocean in CMIP5 climate models
Atlantic water (AW) plays an important role in the thermal balance of the Arctic Ocean, but thus far there has been no comprehensive assessment of the AW layer in the Arctic Ocean simulated by coupled climate ...
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Article
Evaluation on data assimilation of a global high resolution wave-tide-circulation coupled model using the tropical Pacific TAO buoy observations
In order to evaluate the assimilation results from a global high resolution ocean model, the buoy observations from tropical atmosphere ocean (TAO) during August 2014 to July 2015 are employed. The horizontal ...
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Article
Effect of increasing Arctic river runoff on the Atlantic meridional overturning circulation: a model study
An increasing amount of freshwater has been observed to enter the Arctic Ocean from the six largest Eurasian rivers over the past several decades. The increasing trend is projected to continue in the twenty-fi...
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Article
The performance of a z-level ocean model in modeling the global tide
The performance of a z-level ocean model, the Modular Ocean Model Version 4 (MOM4), is evaluated in terms of simulating the global tide with different horizontal resolutions commonly used by climate models. Th...
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Article
Northern-Hemisphere snow cover patterns and formation conditions in winter 2007 and 2012
The Arctic sea ice minimum records appeared in the Septembers of 2007 and 2012, followed by high snow cover areas in the Northern Hemisphere winters. The snow cover distributions show different spatial pattern...
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Article
The prediction on the 2015/16 El Niño event from the perspective of FIO-ESM
Recently atmospheric and oceanic observations indicate the tropical Pacific is at the El Niño condition. However, it’s not clear whether this El Niño event of this year is comparable to the very strong one of ...
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Article
Causes for different spatial distributions of minimum Arctic sea-ice extent in 2007 and 2012
Satellite records show the minimum Arctic sea ice extents (SIEs) were observed in the Septembers of 2007 and 2012, but the spatial distributions of sea ice concentration reduction in these two years were quite...
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Article
The improvement of the one-dimensional Mellor-Yamada and K-profile parameterization turbulence schemes with the non-breaking surface wave-induced vertical mixing
Both the level 2.5 Mellor-Yamada turbulence closure scheme (MY) and K-profile parameterization (KPP) are popularly used by the ocean modeling community. The MY and the KPP are improved through including the no...
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Article
A comparison of two global ocean-ice coupled models with different horizontal resolutions
A global eddy-permitting ocean-ice coupled model with a horizontal resolution of 0.25° by 0.25° is established on the basis of Modular Ocean Model version 4 (MOM4) and Sea Ice Simulator (SIS). Simulation resul...
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Article
Ocean current observation and spectrum analysis in central Chukchi Sea during the summer of 2008
During the summer of 2008, the third CHINARE Arctic Expedition was carried out on board of Xuelong Icebreaker in the central Chukchi Sea. A submersible mooring system was deployed and recovered at Station CN-01 (...
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Article
Observation and simulation of a floe drift near the North Pole
The drift trajectory of a floe near the North Pole (87° N, 175° W) was observed during 8–19 August, 2010 based on the fourth Chinese National Arctic Research Expedition. The trajectory of the floe showed circu...
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Article
Sea ice trends in the Antarctic and their relationship to surface air temperature during 1979–2009
Surface air temperature (SAT) from four reanalysis/analysis datasets are analyzed and compared with the observed SAT from 11 stations in the Antarctic. It is found that the SAT variation from Goddard Institute...
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Article
Open AccessUsing ensemble adjustment Kalman filter to assimilate Argo profiles in a global OGCM
An ensemble adjustment Kalman filter (EAKF) is used to assimilate Argo profiles of 2008 in a global version of the Modular Ocean Model version 4. Four assimilation experiments are carried out to compare with t...
