Nov
23
Thu
2017
Ice2Ice Greenland Surface Mass Balance Workshop
Nov 23 – Nov 24 all-day

Ice2Ice Greenland Surface Mass Balance Workshop

23rd -24th November 2017

Aims:

Workshop on Greenland ice sheet surface mass balance calculations and observations with a focus on ice sheet modelling and climate and ice core interpretation within ice2ice. We will compare SMB produced using different models and forced with C-Earth, NorESM, HIRHAM, WRF etc to examine the sensitivity of SMB to different methods of calculation and to evaluate what implications these have for ice sheet dynamics and the interaction between ice sheet and climate in models.

Session suggestions:

  1. SMB schemes: PDD, SEB, intermediate complexity SEB, problems with reconstructing SMB for long palaeoclimate runs
  2. Observations of Greenland SMB: Promice/Museum invited speaker, long-term records and reconstructions of SMB in Greenland
  3. Sensitivity analysis of SMB formulations: Topography, GCM/RCM, Albedo, SST + sea ice
  4. Implications of SMB for glacier dynamics and model inversion. Andreas (+ others) on ice sheet modelling
  5. CISSEMBEL introduction: Christian Rodehacke to present model, Ruth to present Devon Ice Cap work, Christian/Shuting on Greenland.

Preliminary Programme:

Thursday 23rd November

8:30 am coffee

9am -10.30am session 1 presentations

10:30 -10.45am break

10:45 – 12am Discussion session 1

12-1pm Lunch at DMI

1-3pm session 2

3 – 3.30 pm break

3.30-4.30pm Discussion session 2

Workshop Dinner 19:30

Friday 24th November

8:30 am coffee

9am -10.30am session 3 presentations

10:30 -10.45am break

10:45 – 12am Discussion session 3

12-1pm Lunch at DMI

1-2pm session 4

2 – 3.30 pm Discussion session 2 and wrap-up

Outcomes:

Paper on Modelling Ice Sheet Surface Mass Balance in Palaeoclimate Simulations

Review of different methods used, analysis of model sensitivity and impacts on modelled SMB and possible implications for ice sheet dynamics (not just a review paper!)

Open to other suggestions!
Please confirm your attendance to Ruth Mottram (rum@dmi.dk ) and/or Andreas Plach (andreas.plach@uib.no )

Please confirm attendance and submit any proposed talk title and ideally abstract by 20/11/2017.

 

Nov
24
Fri
2017
Talk by Francesco Muschitiello-Deep-water circulation leads North Atlantic climate during the last deglaciation @ room 235, second floor
Nov 24 @ 13:00 – 14:00

Francesco Muschitiello

(Lamont-Doherty Earth Observatory of Columbia University)

Title: “Deep-water circulation leads North Atlantic climate during the last deglaciation”.

Abstract: Constraining the response time of the climate system to changes in Atlantic Meridional Overturning Circulation (AMOC) is fundamental to improve climate predictability. Here we present a precise synchronization of terrestrial, marine and ice-core records that reveals for the first time the ocean-atmosphere lead-lag nature during rapid North Atlantic climate transitions of the last deglaciation. Using a continuous record of deep water ventilation from the Nordic Seas, we identify a systematic ~250-year lead of deep-water export on abrupt climate changes recorded in Greenland ice cores –in and out of the Younger Dyas stadial (YD)– in response to gradual changes in freshwater forcing. Supported by transient climate model simulations, our results also point at a delayed response of atmospheric CO2 rise to AMOC slowdown at the onset of the YD. We conclude that variations in North Atlantic deep-water formation are precursors to large-scale climate and pCO2 changes, which highlights the need for improved long-term future AMOC projections.

Nov
27
Mon
2017
DMI/NBI meeting @CIC @ CIC 235,
Nov 27 @ 09:00 – 12:00

DMI/NBI meeting at CIC

AGENDA:

-Information on ice2ice all staff (helle)-10 min

-update from SMB workshop (Ruth and Andreas)-20 min

-update on TAC work in Bremerhaven (Bo and Sindhu)-20 min

-Peter: “Inflated uncertainty in multi-model based regional climate projections” (paper accepteret I GRL)- 20 min

-Jens: “Confidence in regional climate projections?”- 20 min

-Publications – if you have new publications please prepare a slide (all)

-Misc

 

Contact Helle if you have more items for the agenda

Dec
1
Fri
2017
Mari F. Jensen – PhD defense @ Undervisningsrom 4020 in 4th floor, West Wing GFI.
Dec 1 @ 10:15 – 11:00

Mari defense @Bergen

Get the abstract as a pdf here.

mariabstract

Dec
4
Mon
2017
PI meeting@Bergen
Dec 4 @ 10:15 – Dec 5 @ 16:15

PI meeting in Bergen

Dec
5
Tue
2017
Trial lecture Henning Åkesson @ Auditorium 2, underetasjen, Realfagbygget, Allégaten 41
Dec 5 @ 14:15 – 15:15

Ph.d.-kandidat Henning Martin Åkesson vil holde følgende prøveforelesning over oppgitt emne for ph.d.-graden:

Tittel: «Past, present and future sea-level changes in the context of regional and global ice dynamics»

Tid:        5. desember, kl. 14.15

Sted:     Auditorium 2, underetasjen, Realfagbygget, Allégaten 41

Komité:

Professor Ulysses Ninnemann, GEO

Professor Haflidi Haflidasson, GEO

Forsker, Dr. Andreas Born, GEO

 

Adgang for interesserte tilhørere.

VELKOMMEN!

Dec
13
Wed
2017
Talk by Henrik Sadatzki @CIC
Dec 13 @ 14:00 – 15:00

Talk by Henrik Sadatzki @CIC- RF 235

Northern sea ice variability during Dansgaard-Oeschger climate cycles

Changes in sea ice cover in the Nordic Seas likely played a crucial role in amplifying ocean circulation and climate changes of the Dansgaard-Oeschger (D-O) cycles during the last glacial. We investigate the role of sea ice for abrupt Greenland climate changes, using a high-resolution sea ice record from Norwegian Sea core MD99-2284 covering four D-O cycles at 32–40 ka. The sea ice reconstruction is based on abundances of the sea ice diatom biomarker IP25 and the open-water phytoplankton biomarker dinosterol, as well as on semi-quantitative phytoplankton-IP25 (PIP25) sea ice estimates. Our biomarker records indicate that the Norwegian Sea was characterized by a near-perennial sea ice cover during cold stadials and enhanced open-ocean conditions during warmer interstadials. Moreover, we find that initiation of sea ice retreat systematically preceded the onset of major deep-water formation in the Nordic Seas and probably the abrupt D-O warming in Greenland. We thus conclude that the glacial sea ice variability acted as precursor and feedback mechanism for abrupt ocean circulation and Greenland climate change during D-O cycles.

Dec
14
Thu
2017
Ice2ice Bergen group meeting
Dec 14 @ 09:00 – 11:00

Ice2ice Bergen group meeting

Please sign up here (before lunch, Tuesday 12.12.)

Date and Time; 14.12, 09-11.

(Team Jansen meeting back-to-back, 11-12.)

Agenda
* Info from PI meeting @Bergen and info Ice2ice all-staff 2018
* Talk by Philipp Anhaus (student of Lars Henrik), presenting his Master “Circulation and Ocean Driven Glacial Melting in a Greenland Fjord”
*AOB

Venue: East wing, room 209.

Jan
3
Wed
2018
PI meeting- Skype
Jan 3 @ 09:00 – 11:00
Jan
8
Mon
2018
Lisa Griem midway presentation
Jan 8 @ 09:15 – 09:15

KUNNGJØRING – MIDTVEISPRESENTASJON

Ph.d.-kandidat Lisa Griem vil avholde midtveispresentasjon av sitt ph.d.- prosjekt.

Tittel: “Ocean circulation changes off southern Greenland during the abrupt climate events of mid-to-late MIS 3”

 

Veiledningskomité:

Professor Eystein Jansen – GEO (hovedveileder)

Dr. Trond Martin Dokken –  Uni Research Climate

Forsker Sarah Miche Patricia Berben – GEO

 

Midtveispresentasjon

Tid: Mandag 8. januar, klokken 09.15

Sted: Ph.d.-rommet, Realfagbygget

 

Komité for midtveisevaluering:

Professor Atle Nesje – GEO (leder)

Professor Ulysses Ninnemann – GEO

Førsteamanuensis Gunnar Sælen – GEO

Jan
9
Tue
2018
DMI/NBI meeting @DMI
Jan 9 @ 09:00 – 12:00

ice2ice DMI/NBI meeting @DMI

Agenda:

-all staff

-Eliza new tephra papers

-Ida

-Martin O

If you have items for the agenda, please let Helle know.

 

Henning Åksson – PhD defense @ Auditorium 2, Realfagbygget, Allégaten 41
Jan 9 @ 10:15 – 12:15

Henning’s PhD defense @Bergen

 

Title of the Thesis 

Deglaciation of the Norwegian fjords”

 Opponent:

Professor, Andreas Vieli, University of Zurich, Sveits,

Opponent:

Professor, Chris Stokes, Durham University, Storbritannia

 

Øvrig medlem i komiteen:

Professor, dr. scient. Atle Nesje, Institutt for geovitenskap, Universitetet i Bergen

 

Leder av disputasen:

Førsteamanuensis Cédric Hamelin, Universitetet i Bergen

 

Jan
22
Mon
2018
ice2ice PhD bootcamp
Jan 22 – Jan 26 all-day

The Ice2Ice PhD bootcamp 2018 is held in Rosendal, Norway, at the Folgefonn Centre from Monday January 22nd to Friday February 26th. We will stay at the Rosendal Tourist Hotel which is very close by to the centre. We defined four groups who will visit different target audiences on day one like school kids of different age (group 1 and 2), tour companies (group 3) and the local media (group 4). The bootcamp week gives each of the four groups the opportunity to find out what the different audiences would like to know about climate science and then test if we are able to communicate the outcome to the audiences. This test will take place at the Folgefonn Centre. Each audience and locals will be invited to listen to our talks and evaluate our communication skills we hopefully improved during the week with the help of Mathew Reeve and Ellen Viste who will be our mentors.

The group structure is as follows:

Group 1:
Sunniva and Karita

Group 2:
Ida, Anais and Eva

Group 3:
Silje and Jonathan

Group 4:
Lisa and Andreas

The program for the week can be found here (pdf). The program includes a tour through the Folgefonn Centre, the visit of the audiences, presentations by the mentors, group work, evening talks and discussions and a social activity on the Wednesday.

We will get to Rosendal on the Monday by ferry that departures from Bergen Torget at central station 08.50am. The boat ride takes approximately 1.5 hours. The trip back to Bergen on the Friday is also by boat and leaves Rosendal at 06.50am. Ferry tickets for the bootcamp participants have been bought by the organisers and will be handed out upon departure. Please show up at the ferry terminal in time as the next ferry to Rosendal leaves in the late afternoon. As the ferry leaves early Monday morning we ask the Copenhagen-based participants to arrive no later than the day before..

The hostel provides bed linen and towels, but please remember to bring warm clothes and hiking boots as the social activity is taking place outdoors.

We look forward to a productive bootcamp 2018!

Best wishes,
Silje, Ida and Lisa

Jan
29
Mon
2018
All staff meeting
Jan 29 @ 09:00 – Feb 2 @ 14:00

All staff meeting

contact Hellek@fys.ku.dk

Feb
19
Mon
2018
Ice2ice statistics workshop for PhDs (and others)
Feb 19 – Feb 23 all-day

Download the full invitation here; Ice2ice statistics course for PhDs

Week 8, 19-23 February 2018@ Copenhagen, DK

venue TBD

Organisers:

Martin Miles, Uni Research, Bergen

Ida Margrethe Ringgaard, University of Copenhagen / Danish Meteorological Institute

Lecturers:

Martin Miles, Uni Research, Bergen

Francesco Muschitiello, Uni Research, Bergen

—————-

“Statistics is a fascinating subject – unfortunately, its teaching is often excruciatingly dull.”– Foreword in a classic statistics textbook.

The ice2ice statistics workshop aims – in contrast – to be an interesting, illustrative and interactive environment, in which we present and explore the use of statistics and other quantitative methods in climate, paleoclimate, paleoceanography and other geosciences.

We will have a few formal lectures, complemented by lots of informal learning and interactive exchanges between lecturers and participants, and between participants. We will work hands-on in small groups and individually on some example data and our own data sets (paleo proxy, observations and/or model data), trying out different methods on the data sets. We will use “R”, a free and comprehensive software environment for statistical computing and graphics: https://www.r-project.org/

Lectures will cover introductory to advanced concepts and methods, adapted to the interests of the participants. Preliminary topics include:

  • Inferential statistics I and II: Theory and methods of univariate and multivariate statistics, including significance and resampling statistics, e.g., bootstrapping and Monte Carlo simulation methods
  • Time series analysis: time-, frequency- and time-frequency domain (e.g., wavelets)
  • Spatial analysis: geostatistics and more, including spatial autocorrelation and its impacts

The workshop is intended primarily for ice2ice PhD students, and will span 3 or 4 days during week 8 (19-23 February), including a social evening of course. Participation by others from ice2ice is also welcome: Remember you can always learn more statistics!

Please send an email to express your interest: martin.miles@uni.no or iri@dmi.dk. Please include any relevant comments (personal goals for the workshop, special topics of interest, partial attendance, etc.).