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Additional NARCCAP Results

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Presentation on theme: "Additional NARCCAP Results"— Presentation transcript:

1 Additional NARCCAP Results
Melissa Bukovsky

2 No Model Is Perfect Some Models Are Useful
They all have problems - global or regional

3 Surface Overview

4

5 Winter Temperature Bias

6

7 Summer Temperature Bias

8 CGCM, CRCM-ncep, CRCM-cgcm Winter

9 CGCM, CRCM-ncep, CRCM-cgcm Summer

10 GFDL, RCM3-ncep, RCM3-gfdl Winter

11 GFDL, RCM3-ncep, RCM3-gfdl Summer

12 Monthly Precipitation
From Wang et al (JRL) Fig. 1. (a) Orography and (b) cold-season rainfall (Nov-May, Udel) of the Intermountain Region. The major mountain ranges are outlined by red lines. (c)-(g) Monthly rainfall histograms of Udel, averaged from the five regions indicated in Fig. 1b, superimposed with the corresponding precipitation of the NARR (thick black line) and all RCMs (color lines).

13 Diurnal Cycle: Temperature
Good example of how not to do a comparison with the NARR…

14 Diurnal Cycle: Precipitation

15 Summer Precipitation NCEP Driven Runs
NARR CRCM ECPC HRM3 NARR precip… caveats! Summer Precipitation NCEP Driven Runs

16 Summer Precipitation NCEP Driven Runs
NARR MM5I RCM3 WRFP Summer Precipitation NCEP Driven Runs

17 1980-1999 JJA GCM Precipitation
CCSM JJA GCM Precipitation GFDL NARR

18 1980-2000 JJA Precipitation w/ GCM Driven Run: CRCM and CGCM
NARR JJA Precipitation w/ GCM Driven Run: CRCM and CGCM CRCM-ncep CRCM-cgcm

19 1980-2000 JJA Precipitation w/ GCM Driven Run: RCM3 and GFDL
NARR JJA Precipitation w/ GCM Driven Run: RCM3 and GFDL RCM3-gfdl RCM3-ncep

20 JJA 1980-2000 Precipitation Maximum Amplitude and Time of Maximum
NARR JJA Precipitation Maximum Amplitude and Time of Maximum CRCM HRM3 MM5I HRM3 does precipitate around midnight – no signs of propagation, light pr MM5I, does also, no signs of propagtion, light pr

21 JJA 1980-2000 3-hr Average Pr NARR CRCM 00 UTC 03 UTC 06 UTC 09 UTC

22 6h Pr Frequency Distribution 1980-1999/2000 JJA GCMs
NARR 6h Pr Frequency Distribution /2000 JJA GCMs % CCSM GFDL

23 3h Pr Frequency Distribution 1980-1999/2000 JJA RCMs
NARR % CRCM ECPC RCM frqdist HRM3 MM5I RCM3 WRFP 3h Pr Frequency Distribution /2000 JJA RCMs (mm/h)

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