National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California Version 5 Statistical Analysis Thomas Hearty L2 Stats – p.1/31
Outline National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California Temperature, water vapor comparisons: V4, V5, and ECMWF . A little bit on clouds. Unrealistic Geophysical Conditions identified in Version 4. L2 Stats – p.2/31
Geographic Regions National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California 90 2002.09.06 30 −90 0 90 180 −30 −90 Polar Ice Cold Season Land Warm Season Land Non−Frozen Ocean Cryptic abbreviations NFO = Non -Frozen Ocean WSL = Warm Season Land L2 Stats – p.3/31
Yield: Global Temperature National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9NoHSB, TEMPSLAB_GLOBAL: Qual_* = 0 or 1: 324000 v5.0.11NoHSBbl, TEMPSLAB_GLOBAL: Qual_* = 0 or 1: 324000 FD20020906 FD20020906 FD20020929 FD20020929 FD20021023 FD20021116 FD20021116 FD20030103 FD20021210 FD20030220 FD20030103 FD20030409 FD20030127 FD20030527 FD20030220 FD20030714 FD20030316 FD20030831 FD20030409 FD20031018 FD20030503 FD20031205 FD20030527 FD20040122 FD20030620 FD20040310 FD20030714 FD20040614 FD20030807 FD20040801 100 100 FD20030831 FD20040918 FD20030924 FD20041105 FD20031018 FD20041223 FD20031205 FD20050209 Pressure [mbar] Pressure [mbar] FD20040122 FD20050329 FD20040215 FD20050516 FD20040310 FD20051007 FD20040403 FD20040614 FD20040801 FD20040825 FD20040918 FD20041012 FD20041105 FD20041223 FD20050116 FD20050209 FD20050329 FD20050422 FD20050516 FD20050609 FD20050727 FD20050913 FD20051007 FD20051031 FD20051218 1000 1000 0 20 40 60 80 100 0 20 40 60 80 100 Percent Percent The yield for temperature retrievals increased in most of the atmosphere. The yield for Surface Temperature retrievals increased (over land and ice). There may be a slight decreasing trend in the yield (over land). L2 Stats – p.4/31
Decreasing trend in the yield National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California Yield v4.0.9stdNoHSBTEMP_GLOBAL Yield v5.0.11stdNoHSBblTEMP_GLOBAL 42 54 40 53 38 52 36 Percent Percent 51 34 50 32 49 30 28 48 Jan-2003 Jan-2004 Jan-2005 Jan-2003 Jan-2004 Jan-2005 There is a decreasing trend in the temperature yield (mostly over land). But it is smaller than the seasonal variation from Version 4. L2 Stats – p.5/31
Yield: NFO Temperature National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9NoHSB, TEMPSLAB_NFO: Qual_* = 0 or 1: 173886 v5.0.11NoHSBbl, TEMPSLAB_NFO: Qual_* = 0 or 1: 173884 FD20020906 FD20020906 FD20020929 FD20020929 FD20021023 FD20021116 FD20021116 FD20030103 FD20021210 FD20030220 FD20030103 FD20030409 FD20030127 FD20030527 FD20030220 FD20030714 FD20030316 FD20030831 FD20030409 FD20031018 FD20030503 FD20031205 FD20030527 FD20040122 FD20030620 FD20040310 FD20030714 FD20040614 FD20030807 FD20040801 100 100 FD20030831 FD20040918 FD20030924 FD20041105 FD20031018 FD20041223 FD20031205 FD20050209 Pressure [mbar] Pressure [mbar] FD20040122 FD20050329 FD20040215 FD20050516 FD20040310 FD20051007 FD20040403 FD20040614 FD20040801 FD20040825 FD20040918 FD20041012 FD20041105 FD20041223 FD20050116 FD20050209 FD20050329 FD20050422 FD20050516 FD20050609 FD20050727 FD20050913 FD20051007 FD20051031 FD20051218 1000 1000 0 20 40 60 80 100 0 20 40 60 80 100 Percent Percent The yield increased in the troposphere. L2 Stats – p.6/31
Yield: WSL Air Temperature National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9NoHSB, TEMPSLAB_WSL: Qual_* = 0 or 1: 59436 v5.0.11NoHSBbl, TEMPSLAB_WSL: Qual_* = 0 or 1: 59435 FD20020906 FD20020906 FD20020929 FD20020929 FD20021023 FD20021116 FD20021116 FD20030103 FD20021210 FD20030220 FD20030103 FD20030409 FD20030127 FD20030527 FD20030220 FD20030714 FD20030316 FD20030831 FD20030409 FD20031018 FD20030503 FD20031205 FD20030527 FD20040122 FD20030620 FD20040310 FD20030714 FD20040614 FD20030807 FD20040801 100 100 FD20030831 FD20040918 FD20030924 FD20041105 FD20031018 FD20041223 FD20031205 FD20050209 Pressure [mbar] Pressure [mbar] FD20040122 FD20050329 FD20040215 FD20050516 FD20040310 FD20051007 FD20040403 FD20040614 FD20040801 FD20040825 FD20040918 FD20041012 FD20041105 FD20041223 FD20050116 FD20050209 FD20050329 FD20050422 FD20050516 FD20050609 FD20050727 FD20050913 FD20051007 FD20051031 FD20051218 1000 1000 0 20 40 60 80 100 0 20 40 60 80 100 Percent Percent There were larger increases in the yield over land. There is a decreasing trend in the yield (but it is smaller than the seasonal variation in yield from Version 4). L2 Stats – p.7/31
Yield: Polar Ice Temperature National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9NoHSB, TEMPSLAB_POLAR_ICE: Qual_* = 0 or 1: 60291 v5.0.11NoHSBbl, TEMPSLAB_POLAR_ICE: Qual_* = 0 or 1: 60291 FD20020906 FD20020906 FD20020929 FD20020929 FD20021023 FD20021116 FD20021116 FD20030103 FD20021210 FD20030220 FD20030103 FD20030409 FD20030127 FD20030527 FD20030220 FD20030714 FD20030316 FD20030831 FD20030409 FD20031018 FD20030503 FD20031205 FD20030527 FD20040122 FD20030620 FD20040310 FD20030714 FD20040614 FD20030807 FD20040801 100 100 FD20030831 FD20040918 FD20030924 FD20041105 FD20031018 FD20041223 FD20031205 FD20050209 Pressure [mbar] Pressure [mbar] FD20040122 FD20050329 FD20040215 FD20050516 FD20040310 FD20051007 FD20040403 FD20040614 FD20040801 FD20040825 FD20040918 FD20041012 FD20041105 FD20041223 FD20050116 FD20050209 FD20050329 FD20050422 FD20050516 FD20050609 FD20050727 FD20050913 FD20051007 FD20051031 FD20051218 1000 1000 0 20 40 60 80 100 0 20 40 60 80 100 Percent Percent The largest increase in yield was in polar regions. L2 Stats – p.8/31
NFO Air Temperature National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9NoHSB, TEMPSLAB_NFO: Qual_* = 0 or 1 v5.0.11NoHSBbl, TEMPSLAB_NFO: Qual_* = 0 or 1 FD20020906 FD20020906 FD20020929 FD20020929 FD20021023 FD20021116 FD20021116 FD20030103 FD20021210 FD20030220 FD20030103 FD20030409 FD20030127 FD20030527 FD20030220 FD20030714 FD20030316 FD20030831 FD20030409 FD20031018 FD20030503 FD20031205 FD20030527 FD20040122 FD20030620 FD20040310 FD20030714 FD20040614 FD20030807 FD20040801 100 100 FD20030831 FD20040918 FD20030924 FD20041105 FD20031018 FD20041223 FD20031205 FD20050209 Pressure [mbar] Pressure [mbar] FD20040122 FD20050329 FD20040215 FD20050516 FD20040310 FD20051007 FD20040403 FD20040614 FD20040801 FD20040825 FD20040918 FD20041012 FD20041105 FD20041223 FD20050116 FD20050209 FD20050329 FD20050422 FD20050516 FD20050609 FD20050727 FD20050913 FD20051007 FD20051031 FD20051218 1000 1000 -2 -1 0 1 2 -2 -1 0 1 2 AIRS - ECMWF [K] AIRS - ECMWF [K] The increasing trend in the temperature bias is still in Version 5. There is a decreasing trend ∼ 500 mbar. L2 Stats – p.9/31
NFO Air Temperature Trend National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9.0, TEMPSLAB_NFO: P0968.54 v5.0.11.0, TEMPSLAB_NFO: P0968.54 385 385 0.1 slope = 0.1281 ± 0.0142 slope = 0.1286 ± 0.0261 CC = 0.70 CC = 0.85 0.1 0.0 TAirSup - ECMWF TAirSup - ECMWF GLB CO 2 ppmv GLB CO 2 ppmv 0.0 380 380 -0.1 -0.1 -0.2 375 375 -0.2 -0.3 -0.3 -0.4 370 370 Jan-2003 Jan-2004 Jan-2005 Jan-2003 Jan-2004 Jan-2005 Time Varying CO 2 did not remove this trend identified by Divakarla et al. Similar trends are seen in the Microwave Only and AIRS Only Retrievals. L2 Stats – p.10/31
NFO Air Temperature Trend National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California v4.0.9.0, TEMPSLAB_NFO: P0544.19 v5.0.11.0, TEMPSLAB_NFO: P0544.19 385 385 slope = -0.0756 ± 0.0136 slope = -0.0518 ± 0.0150 CC = -0.39 CC = -0.27 0.5 0.40 TAirSup - ECMWF TAirSup - ECMWF GLB CO 2 ppmv GLB CO 2 ppmv 380 380 0.4 0.35 0.3 0.30 375 375 0.2 0.25 0.1 370 370 0.20 Jan-2003 Jan-2004 Jan-2005 Jan-2003 Jan-2004 Jan-2005 The opposite slopes are almost identical at ∼ 500 mbar. L2 Stats – p.11/31
Recommend
More recommend
