best spectral regions: aries & tafts up-down, at 4 km downwelling, at 4 km 1) i err = i*0.05 + ( i...

11
Best spectral regions: ARIES & TAFTS 500 1000 1500 2000 2500 0.1 1 10 100 I erro r /I WD cm -1 N et R adiance at 4km , mW/(m 2 cm -1 srad) Hit&CK D M TC K D co n trib . W D co ntrib . 500 1000 1500 2000 2500 0 1 2 3 signal= signal*(1 0.05 )+ 1.e-5 W /(m 2 cm -1 srad) SZA=45 o ; W ater_co lu m n = 2.99 g /cm 2 d F err /M TC K D co n tr d F err /W D co n tr. Up-Down, at 4 km 500 1000 1500 2000 0.1 1 10 100 I erro r /I WD cm -1 D ow nw ellin g R adiance at 4km , mW/(m 2 cm -1 srad) Hit& CKD M TC K D co ntrib . W D co n trib . 500 1000 1500 2000 0 1 2 3 d F err /M TC K D co ntr d F err /W D co n tr. O ZA =0 o ; S ZA=45 o ; W ater_co lu m n = 2.99 g /cm 2 signal= signa l*(1+ 0.05)+ 1.e-5 W /(m 2 cm -1 srad) Downwelling, at 4 km 1) I err = I*0.05 + (I Lines 2 + 10 -5*2 ) 0.5 W/(m 2 * cm -1 ) 2) Surface at 0 km

Upload: savannah-perkins

Post on 28-Mar-2015

219 views

Category:

Documents


0 download

TRANSCRIPT

  • Slide 1

Best spectral regions: ARIES & TAFTS Up-Down, at 4 km Downwelling, at 4 km 1) I err = I*0.05 + ( I Lines 2 + 10 -5*2 ) 0.5 W/(m 2 * cm -1 ) 2) Surface at 0 km Slide 2 Best spectral regions: ARIES & TAFTS Up-Down, at 4 km Downwelling, at 4 km 1) I err = I*0.05 + ( I Lines 2 + 10 -4*2 ) 0.5 2) Surface at 2 km Up-Down, at 7 km Up-Down, at 11 km Slide 3 Water continuum and water dimers (1600-8000 cm -1 ) 2 (PA), 2 (PD) 3 (PD), 1 (PD) 3 (PA) 1 (PD)+ 2 (PD) 2 (PA)+ 3 (PA) 1 (PA)+ 2 (PA) 2 (PD)+ 3 (PD ) 2 1 (PA) 1 + 3 (PD) 2 1 (PD) 1 + 3 (PA) 2 3 (PD) Slide 4 Water continuum and water dimers (1600-8000 cm -1 ) 50-100% error is required to explain this deviation from MTCKD What is the possible impact of the error in line parameters? From 100 to 300% error is required to explain deviation from MTCKD Slide 5 Fitting of line parameters in 1600 and 3600 cm -1 bands 1300 - 2000 cm -1 3400 - 4000 cm -1 From 5 mm cell RAL measurement Slide 6 Fitting of line parameters in 5300 -1 bands Ptashnik, Smith, Shine, JMS-2005 Jenouvrier et al., JQSRT-2007 Ptashnik & Smith, subm. to JQSRT Slide 7 Fitting of line parameters in 5300 -1 bands Ptashnik, Smith, Shine, JMS-2005; Jenouvrier et al, JQSRT-2007; Barber RJ, Tennyson et al., Mon. Not. R. Astron. Soc.- 2006 Slide 8 Fitting of line parameters in 5300 -1 bands Ptashnik, Smith, Shine, JMS-2005; Jenouvrier et al, JQSRT-2007; Barber RJ, Tennyson et al., Mon. Not. R. Astron. Soc.- 2006 Slide 9 Water continuum and dimer theories: First UCL result 3 (PD), 1 (PD) 3 (PA) 2 ( PA), 2 (PD) 1 (PD)+ 2 (PD) 2 (PA)+ 3 (PA) 1 (PA)+ 2 (PA) 2 (PD)+ 3 (PD ) 2 1 (PA) 1 + 3 (PD) 2 1 (PD) 1 + 3 (PA) 2 3 (PD) Kjaergaard, Garden et al., J. Phys. Chem, 2008: H-bond creates strong redistribution of the charge, and dipole moment of the transition (and hence its intensity) increases dramatically. Slide 10 Water continuum and dimer theories: First UCL results WM WD Slide 11 Continuum in the near-IR windows from the recent MSF RAL measurements Self-continuum in all near-IR windows exceeds MTCKD by order of magnitude!