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Boundary Blend

Boundary Blend. 2100/10/2008~2200/10/2008 5 dtg every 6h full update cycle 3 domain (45/15/5km) WRFVAR/WRF_V2.1.1 NCEP BD Two experiment Boundary blend (BD) on domain 15/5 km No boundary blend (NBD) 500hPa vorticity. Code Verify-500 Vor Diff. 2106 ana. 2100 06f. 2100 ana. 2106

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Boundary Blend

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  1. Boundary Blend • 2100/10/2008~2200/10/2008 • 5 dtg every 6h full update cycle • 3 domain (45/15/5km) • WRFVAR/WRF_V2.1.1 • NCEP BD • Two experiment • Boundary blend (BD) on domain 15/5 km • No boundary blend (NBD) • 500hPa vorticity

  2. Code Verify-500 Vor Diff 2106 ana 2100 06f 2100 ana 2106 06f 2112 ana 2112 06f

  3. NBD BD 500hPa Vor 2008/10/2100

  4. 500 hPa Vor_Diff 2008/10/2100

  5. NBD BD 500hPa Vor 2008/10/2106

  6. 500 hPa Vor_Diff 2008/10/2106

  7. NBD BD 500hPa Vor 2008/10/2112

  8. 500 hPa Vor_Diff 2008/10/2112

  9. NBD BD 500hPa Vor 2008/10/2118

  10. 500 hPa Vor_Diff 2008/10/2118

  11. NBD BD 500hPa Vor 2008/10/2200

  12. 500 hPa Vor_Diff 2008/10/2200

  13. 21/18 11h f 21/18 12h f NBD 21/18 11h f 21/18 12h f BD BD is better

  14. BD 2200 6h f 2200 9h f 2200 12h f NBD 2200 9h f 2200 12h f 2200 6h f

  15. After 5 dtg full update cycle run, difference at end date is obviously. • Unknown the reason to cause this difference by the effect of integration or by the BD big forcing • Redo the experiment to do extend to 7 dtg full update cycle run

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