[Liwg-core] co-chairs notes 1-3-17
Kampenhout, L. van (Leo)
L.vanKampenhout at uu.nl
Wed Jan 4 09:10:53 MST 2017
Sorry about that, I wrongly interpreted this statement by Jan
We will need to check the ice sheet SMB numbers in 125.
as that 125 has the new repartitioning.
On 04 Jan 2017, at 17:04, Bill Sacks <sacks at ucar.edu<mailto:sacks at ucar.edu>> wrote:
Thank you very much for these numbers.
I am a little confused, though: You refer to the effect of the new repartitioning, but I thought that we have only included the new repartitioning in runs that you and Jan did – not in any of Cecile's runs. Am I remembering wrong, and do some of the runs below actually have this new repartitioning?
On Jan 4, 2017, at 7:03 AM, Kampenhout, L. van (Leo) <L.vanKampenhout at uu.nl<mailto:L.vanKampenhout at uu.nl>> wrote:
below some numbers for run 119, 124 and 125.
RACMO2.3 estimates SNOW = 673 +/- 77, so with the repartitioning we’re still on the high side with about 100 Gt.
For the period 1961-1990 RACMO predicts SMB = 398 +/-112 so runoff is still underestimated with about ~200 Gt (700-100-398)
77% of rain is refrozen in run 119, 83% in run 124 and 79% in run 125 so it’s a long shot to conclude that the new repartitioning has a significant effect?
Case Integration mask RAIN RAIN_REP SNOW SNOW_REP QICE
period = 0080-0104
CESM16 203.145 Gt
RACMO2.3 230.934 Gt
period = 0005-0024
period = 0032-0051
On 03 Jan 2017, at 20:32, Lenaerts, J.T.M. (Jan) <j.lenaerts at uu.nl<mailto:j.lenaerts at uu.nl>> wrote:
Happy New Year everyone!
We will need to check the ice sheet SMB numbers in 125. I am back in the office next week and I will produce some plots.
From: Liwg-core [liwg-core-bounces at cgd.ucar.edu<mailto:liwg-core-bounces at cgd.ucar.edu>] on behalf of Bill Sacks [sacks at ucar.edu<mailto:sacks at ucar.edu>]
Sent: Tuesday, January 03, 2017 8:05 PM
To: Marcus Löfverström
Cc: liwg-core at cgd.ucar.edu<mailto:liwg-core at cgd.ucar.edu>
Subject: Re: [Liwg-core] co-chairs notes 1-3-17
No, I just mean changing the simple rain-snow partitioning scheme to use a different ramp – currently:
! ramp near freezing
frac_rain = (temperature - SHR_CONST_TKFRZ) * 0.5_r8
! bound in [0,1]
frac_rain = min(1.0_r8,max(0.0_r8,frac_rain))
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