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Comparisons of rainrates from GMI and MRMS (now called Q3)

GMI surface rainrates

Comparisons with MRMS (Q3)

• Scatter plot for different rainrate categories
  0.2-1.0 mm/h 1.0-10.0 mm/h ≥ 10.0 mm/h ≥ 0.2 mm/h 2014 2015 2016 January February March April May June July August September October November December Year To Date


• Density plot for different rainrate categories
  0.2-1.0 mm/h 1.0-10.0 mm/h ≥ 10.0 mm/h ≥ 0.2 mm/hh 2014 2015 2016 January February March April May June July August September October November December Dec-Feb Mar-May Jun-Aug Sep-Nov Year To Date Linear Scale Logarithmic Scale


• Mean difference, relative error, RMSE, and correlation for different rainrate categories
  Yearly               0.2≤MRMS<1 and 0.2≤GMI<1 1≤MRMS<10 and 1≤GMI<10 MRMS≥10 and GMI≥10 MRMS≥0.2 and GMI≥0.2 0.2≤MRMS<1 or 0.2≤GMI<1 1≤MRMS<10 or 1≤GMI<10 MRMS≥10 or GMI≥10 MRMS≥0.2 or GMI≥0.2 2014 2015 2016

  Mission-to-date 0.2≤MRMS<1 or 0.2≤GMI<1 1≤MRMS<10 or 1≤GMI<10 MRMS≥10 or GMI≥10 MRMS≥0.2 or GMI≥0.2 Error Bar Relative Error Root Mean Square Error Correlation


• PDF by rain occurrence and volume for different rainrate categories
  0.2-1.0 mm/h 1.0-10.0 mm/h ≥ 10.0 mm/h ≥ 0.2 mm/h 2014 2015 2016


• Rain map
  2014 2015 2016 January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

  The rain map for GMI surfacePrecipitation (SP), mostLikelyPrecipitation (MP) or MRMS is based on its native spatial resolution (GMI: ~5km; MRMS: 0.01^o). GMI rainrates less than 0.2 mm/h are not plotted.

• Error Map
  QC0 QC1

  The error maps (mean relative error and mean absolute error for GMI surfacePrecipitation relative to MRMS rainrates), as well as the sample size, are based on matched data at 0.5^o resolution from Mar 2014 to Mar 2015 after applying following QCs/filters. Rainrates less than 0.2 mm/h are excluded.
  

  • QC0 no QC
  • QC1 valid data: RQI>=0.9 and liquid precipitation only, and
    area coverage: >=75% of 0.01^o grids with "valid data" in each 0.5 ^o box.