EMTech Research Institute for Environmental Management Technology Evaluation of transport models...

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EMTechResearch Institute for Environmental Management Technology

Evaluation of transport models using radon concentrations at Freiburg, Schaunisland and Ma

una Loa 25,April, 2007, TransCom Purdue Meeting

Shoichi Taguchi/AISTAcknowledgements

Hartmut Srtorius/Bundesamt fur Strahlenschutz, Germany

Wlodek Zahorowski/Austraian Nuclear Science and Technology Organization

Contents

• TransCom/Models• Freiburg(FRB) and Schauinsland(SCH)• Planetary boundary layer/Diurnal variations• Mauna Loa (MLO)• Long range transport• Events

Organization

1 AM2 GFDL 24η 2.5x2 NCEP

2 AM2t GFDL 24η 2.5x2 NCEP

3 CCAM CSIRO 18σ ~220km NCEP

4 CCSR_NIES2 FRCGC 32σ ~1.1x1.1 NCEP

5 NICAM CCSR_FRCGC 54tf ~240km NCEP

6 NIES05 NIES_ESC 47η 1.0x1.0 NCEP

7 PCTM CSU 25η 1.25x1 GEOS

8 PCTM GSFC 25η 2.5x2.0 GEOS

9 STAG AIST 60η 1.125x1.125 ECMWF

10 STAGN AIST 28σ 1.875x1.875 NCEP

11 TM5_eur1x1 SRON 25η 3x2&1x1 ECMWF

12 TM5_glb3x2 ESRL 25η 3x2 ECMWF

Models

QuickTime˛ Ç∆TIFFÅiLZWÅj êLí£ÉvÉçÉOÉâÉÄ

Ç™Ç±ÇÃÉsÉNÉ`ÉÉÇ å©ÇÈÇΩÇflÇ…ÇÕïKóvÇ≈Ç∑ÅB

Emissions0.005atom/cm2/sec 60N-70N Land/Ocean

1atom/cm2/sec 60N-60S Land

QuickTime˛ Ç∆TIFFÅià≥èkÇ»ÇµÅj êLí£ÉvÉçÉOÉâÉÄ

SCH/FRB

1.AM22.AM2t3.CCAM4.CCSR5.NICAM6.NIES057.PCTM.CSU8.PCTM.GSFC9.STAG10.STAGN11.TM5_eur1x112.TM5_glb3x2

Freiburg

• Protocol 276m

• All.xx.nc file is a mixture of surface and upper layer concentrations

• --> Lowest model level from radon.xx file

• O=coefficient of correlation

• +=standard deviations

FRB_jan

Pbl_jan

FRB_jan_diff

FRB_p_jan

Schauinsland

• Protocol 1205m

• 1205m in SCH-B in Chevillard et al., Transport of 222Rn using the regional model REMO: a detailed comparison with measuremnts over Europe, Tellus, 2002.

• 900m in Oliveie, D.J.L. et al., Evaluations oarchived and off-line diagnosed vertical diffusion coefficients from ERA-40 with 222Rn simualtions.Atmos. Chem . Phys. 4. 2313-2336, 2004

• All.xx.file is a mixture of surface and upper level --> interpolation to 1000m from radon.xx file + Z in Model_info file

SCH_r1000m

SCH_oct_all

Pbl_oct

Sch_oct

MLOmap

• Protocol 3397m

• daily minimum of observed dataZahorowski, et al., Radon-222 in boundary layer and free tr

opospheric continental outflow events at three ACE-Asia sites,Tellus, 57B, 124-140, 2005

• Simulations at levels nearest to 3397m

MLO_Mar

Tag_area

Tag_2002_mar

NICAM2002

Z=ModelInfo file

TM5ESRL2002

Conclusion

SCH TM5_ESRL

MLO NICAM

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