Major Events

Information about the following special event is available here:

CFMIP/WCRP/ICTP Conference on Cloud Processes, Circulation and Climate Sensitivity

To be held July 4-7, 2016, at the International Center for Theoretical Physics in Trieste, Italy.
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+ Past Meetings & Workshops

Other Upcoming Events

Following are upcoming seminars, workshops and other events of interest to GISS staff and our research partners. Please note that due to security regulations, these presentations are not open to the general public.

Thursday, Apr. 28, 2016
2:00 p.m. to 3:30 p.m.
Special Seminar
Speaker: Michael Puma (CCSR/GISS)
Contact: Susanne Bauer
Monday, May. 2, 2016
2:30 p.m. to 4:00 p.m.
Special Seminar
Topic: Seasonal-to-interannual variability and predictability of the Arctic sea ice thickness modes
Speaker: Neven Fuckar (Barcelona Supercomputing Center (BSC))
Abstract: Read More
Contact: Anthony Leboissetier

Special Seminar
Speaker: Neven Fuckar (Barcelona Supercomputing Center (BSC))
Title: Seasonal-to-interannual variability and predictability of the Arctic sea ice thickness modes

Abstract: Sea ice thickness (SIT) has a potential to contain substantial climate memory and predictability in the northern hemisphere (NH) sea ice system. We use 5-member NH SIT, reconstructed with an ocean-sea-ice general circulation model (NEMOv3.3 with LIM2) with a simple data assimilation routine, to determine NH SIT modes of variability disentangled from the long-term climate change. Specifically, we apply the K-means cluster analysis - a nonhierarchical clustering method that partition data into modes or clusters based on their distances in the physical space - to determine optimal number of NH SIT clusters (K=3) and their historical variability with dominant persistence on seasonal to interannual time scales. To examine prediction skill of NH SIT clusters in EC-Earth2.3, a state-of-the-art coupled climate forecast system, we use 5-member ocean and sea ice initial conditions (IC) from the same ocean-sea-ice historical reconstruction and atmospheric IC from ERA-Interim reanalysis. We focus on May 1st and Nov 1st start dates from 1979 to 2010. Common skill metrics of probability forecast, such as accuracy, ranked probability skill core and ROC (relative operating characteristics - hit rate versus false alarm rate) show that our dynamical model predominately perform better than the 1st order Marko chain forecast (that beats climatological forecast) over the first forecast year. On average May 1st start dates initially have lower skill than Nov 1st start dates, but their skill is degraded at slower rate than skill of forecast started on Nov 1st, which emphasizes importance of summer SIT IC.

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Friday, May. 27, 2016
11:00 a.m. to 12:30 p.m.
Friday Seminar
Speaker: Martina Klose (USDA-ARS Jornada Experimental Range)
Contact: Jan Perlwitz
Thursday, Sep. 15, 2016
11:00 a.m. to 12:30 p.m.
Climate Center Lecture
Speaker: Stephen Meyers (University of Wisconsin)
Abstract: Read More
Contact: Allegra N. LeGrande

Climate Center Lecture
Speaker: Stephen Meyers (University of Wisconsin)

Abstract: Climate Center (LDEO/GISS) Lecture

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This event listing was last updated 2016-04-26.

Seminars & Colloquia

Most seminars at GISS are held during the academic year, September through May.

Formal seminar presentations by visiting scientists are held many Fridays at 11:00 a.m.

Informal lunchtime presentations by NASA GISS staff take place on Wednesdays at 1:00 p.m. about twice per month.

Other special seminars occur from time to time as visitors' schedules permit.

Security Note

Regulations require that visitors arrange in advance for a building pass. Persons attending a NASA GISS seminar or colloquium should contact the event host at least two days in advance of the event for assistance. Please include your affiliation in your e-mail.

Effective July 21, 2014, the implementation of Phase II of the Real-ID Act (2005) restricts the use of state ID from non-compliant states (including New York) as an acceptable form of identification for federal facilities such as NASA GISS. If you are scheduled to visit GISS and only have a standard driver's license from a non-compliant state, please be sure to bring a second form of ID (passport, military ID, etc.).

Special arrangements must be made for persons who are not U.S. citizens or U.S. permanent residents. Such persons planning to attend a NASA GISS event should contact the event host at least 2 days in advance of visiting GISS.