[Liwg-core] Fwd: [wg-cochairs] CESM WG Chairs Meeting REMINDER

Miren Vizcaino M.Vizcaino at tudelft.nl
Fri Jan 20 08:19:09 MST 2017


Thanks Jan and Leo

Miren

FYI, Raymond is looking into SMB sensitivity to maximum snow thickness (with IG-ERAInterim runs), we'll inform of the outcome


On Jan 20, 2017, at 4:10 PM, Lenaerts, J.T.M. (Jan) wrote:

Just to clarify: it will probably increase melt rates, and decrease SMB :) More later!


On 20 Jan 2017, at 16:07, Lenaerts, J.T.M. (Jan) <j.lenaerts at uu.nl<mailto:j.lenaerts at uu.nl>> wrote:

Hi Bill,

We don’t have enough new results that warrant attention. However, Leo has found a serious (!) bug in the surface energy balance scheme (a continuous sink of energy that is lost on the way), which has been introduced since the inclusion of fractional snow cover. He is currently working on some slides to illustrate it. If this proves to be real (and we think it is), it might explain the low melt rates with a reasonable climate, the low sensitivity to changing ice albedo, and it will probably completely change (i.e. drastically increase) the surface melt and SMB over the ice sheets….

Leo will update us later today, but I would not (yet) mention this at the co-chair meeting. We should perhaps first discuss this internally and with the CLM folks (who have been working on the fractional snow cover).

All the best,

Jan




On 20 Jan 2017, at 15:57, Lipscomb, William Henry <lipscomb at lanl.gov<mailto:lipscomb at lanl.gov>> wrote:


Hi all,

Just wondering if anyone else is planning to call into today’s meeting, and if we have any results to show from the latest runs (including those with reduced bare ice albedo).

Thanks,

Bill L.


Begin forwarded message:

From: Barbara Ballard <bballard at ucar.edu<mailto:bballard at ucar.edu>>
Subject: [wg-cochairs] CESM WG Chairs Meeting REMINDER
Date: January 20, 2017 at 7:34:10 AM MST
To: ssc <ssc at cgd.ucar.edu<mailto:ssc at cgd.ucar.edu>>, wg-cochairs <wg-cochairs at cgd.ucar.edu<mailto:wg-cochairs at cgd.ucar.edu>>, ccsm-liaisons <ccsm-liaisons at cgd.ucar.edu<mailto:ccsm-liaisons at cgd.ucar.edu>>

Good morning,

This email is to remind you of a CESM WG Chairs meeting this morning at 10AM MST in the Director's Conference Room.

For those connecting to the meeting from outside of NCAR, here are the numbers that you will need:
AUDIO: Dial this access number:  1-866-740-1260<tel:1-866-740-1260> – Enter access code 4971358
VIDEO: Go to www.readytalk.com<http://www.readytalk.com/>; under "join a meeting" enter access code 4971358

Thanks,
Barbara

--
Barbara Ballard
National Center for Atmospheric Research
Climate and Global Dynamics Laboratory
P. O. Box 3000
Boulder, CO  80307-3000
CESM Program Office
Assistant to CGD Director
303-497-1358

---
William Lipscomb
Los Alamos National Laboratory
Group T-3, MS B216
Los Alamos, NM 87545
505-667-0395




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Jan Lenaerts
IMAU, Utrecht University
@lenaertsjan<https://twitter.com/lenaertsjan> || IMAU website<http://www.staff.science.uu.nl/~lenae101/> || CU<http://www.colorado.edu/lab/icesheetclimate/> website<http://www.colorado.edu/lab/icesheetclimate/>





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Jan Lenaerts
IMAU, Utrecht University
@lenaertsjan<https://twitter.com/lenaertsjan> || IMAU website<http://www.staff.science.uu.nl/~lenae101/> || CU<http://www.colorado.edu/lab/icesheetclimate/> website<http://www.colorado.edu/lab/icesheetclimate/>





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