GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja...
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![Page 1: GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja Winger.](https://reader035.fdocuments.us/reader035/viewer/2022062713/56649cbb5503460f949839a7/html5/thumbnails/1.jpg)
GEM Climate Performance over Arctic
*** A Simulation on MARVIN ***
Minwei QIAN, Colin Jones, Katja Winger
![Page 2: GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja Winger.](https://reader035.fdocuments.us/reader035/viewer/2022062713/56649cbb5503460f949839a7/html5/thumbnails/2.jpg)
Model Configuration
Resolution: 0.5 degreeGrid number: 182*154Simulation Period: 1983-2002
182
162
142
154 134 114
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Average states
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GEM ERA40 Diff
Winter
Summer
Sea Level Pressure
![Page 5: GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja Winger.](https://reader035.fdocuments.us/reader035/viewer/2022062713/56649cbb5503460f949839a7/html5/thumbnails/5.jpg)
GEM ERA40 Diff
Winter
Summer
Geo. Potential Height (500mb)
![Page 6: GEM Climate Performance over Arctic *** A Simulation on MARVIN *** Minwei QIAN, Colin Jones, Katja Winger.](https://reader035.fdocuments.us/reader035/viewer/2022062713/56649cbb5503460f949839a7/html5/thumbnails/6.jpg)
GEM ERA40 Diff
Winter
Summer
Sensible Heat Fluxes (W/M2)
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GEM ERA40 Diff
Winter
Summer
Latent Heat Fluxes (W/M2)
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GEM ERA40 Diff
Winter
Summer
Solar Radiation downward (W/M2)
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GEM ERA40 Diff
Winter
Summer
Cloud cover (%)
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GEM ERA40 Diff
Winter
Summer
Longwave Radiation downward (W/M2)
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GEM ERA40 Diff
Winter
Summer
T2M Temperature C
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Variability
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Standard deviation for T2M in JJA (interannual mean)
GEM ERA40
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Standard deviation for T2M in DJF (interannual mean)
GEM ERA40
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Standard deviation for SLP in JJA (interannual mean)
GEM ERA40
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Standard deviation for SLP in DJF (interannual mean)
GEM ERA40
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Standard deviation for Geo Potential in JJA (interannual mean)
GEM ERA40
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Standard deviation for Geo Potential in DJF (interannual mean)
GEM ERA40
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Summer Winter
SLP 2~8 mb 0~4 mb
Geo. Potential (500mb) 40~80 m 20~40 m
T2M -1 C 5~7 C
Sensible Heat 3~5 W/M2 10~20 W/M2
Latent Heat -5~-3 W/M2 (less ev) ~5 W/M2 (more ev)
Net Longwave -10~-5 W/M2 5~15 W/M2
Net Shortwave 10~15 W/M2 0 W/M2
Longwave downward ~ -10 W/M2 20~40 W/M2
Shortwave downward 10~40 W/M2 0 W/M2
Cloud cover -5 % 20%
Summary 1Over Arctic only
Summary 2. GEM captures interannual variability of climate.Interannual variability is larger in winter than in summer.
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Geo. Potential Height (500mb) 1984-1992
GEM_LAM - ERA40 GEM_Global_Stretched - ERA40Summer
Winter
ERA40
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GEM_LAM ERA40 GEM_Global_StretchedSummer
Winter
Standard deviation for Geo Potential 500 mb (interannual mean)
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Merci!