Meetings, Workshops, Seminars, and Colloquia

Most seminars and colloquia at NASA/GISS are presented during the academic year, September through May.

Informal Lunch Seminars, most often presented by NASA/GISS or Columbia Climate School scientists, take place on Wednesdays at 1 p.m. about twice per month, usually during the academic year (Sep.-May).

GISS staff also organize a Tuesday morning (11 a.m.) series of Sea Level Rise seminars (YouTube), presented by scientists from numerous research institutions. This seminar occurs two or three times per month, year-round.

Other special seminars occur depending on the schedules of visiting scientists.

Following are upcoming seminars, workshops and other events of interest to GISS staff and to our research partners. Please note that due to security regulations, as described elsewhere on this page, presentations on the GISS premises are not open to the general public.

Please consult with the event host/contact for connection details if you wish to remotely join any event marked as "Virtual" or "Hybrid".

This event listing was last updated 2023-03-20. All times shown are New York City local.

March 22, 2023
1 p.m. to 2:15 p.m.— Hybrid
GISS Lunch Seminar
Topic: Response of Tropospheric Transport to Abrupt CO2 Increase: Dependence on the Atlantic Meridional Overturning Circulation
Speaker: Xiyue Zhang (Johns Hopkins Univ)
More info: Abstract
Host/Contact: Maggie DeLessio

GISS Lunch Seminar
Speaker: Xiyue Zhang (Johns Hopkins Univ)
Title: Response of Tropospheric Transport to Abrupt CO2 Increase: Dependence on the Atlantic Meridional Overturning Circulation

This is hybrid presentation. Please consult with event host Maggie DeLessio for connection details if you wish to virtually attend.

Abstract:
Understanding how the transport of gases and aerosols responds to climate change is necessary for policy making and emission controls. There is considerable spread in model projections of transport in climate change simulations, largely because of the substantial uncertainty in projected changes in large-scale atmospheric circulation. A potential contributor to the uncertainty is the response of the Atlantic Meridional Overturning Circulation (AMOC). Here we examine the connections between the atmospheric circulation and tropospheric transport response to increased CO2, and their dependence on changes in the AMOC using a passive tracer in abrupt 2xCO2 and 4xCO2 experiments. We show that AMOC weakening leads to a poleward shift of the northern midlatitude jet and enhanced eddy mixing along isentropes on the poleward flank of the jet. As a result, for a tracer of northern midlatitude surface origin, its tropospheric concentration decreases in the midlatitudes and increases in the Arctic. This mechanism is robust in individual abrupt 2xCO2 or 4xCO2 simulations, the nonlinearity to CO2 forcing, and the differences between two versions of a climate model (GISS E2.2-G). Preliminary analysis of realistic chemical tracers suggest that the same mechanism can be used to provide insights into the climate change response of anthropogenic pollutants.

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March 28, 2023
11 a.m. to 12:15 p.m. — Virtual
Sea Level Rise Seminar
Speaker: Derrick Lampkin (Univ. Maryland)
Host/Contact: Patrick Alexander
March 29, 2023
1 p.m. to 2:15 p.m.— Hybrid
GISS Lunch Seminar
Speaker: Sidhant Pai (StepChange)
Host/Contact: Maggie DeLessio
April 4, 2023
11 a.m. to 12:15 p.m. — Virtual
Sea Level Rise Seminar
Speaker: Shaina Sadai (Union of Concerned Scientists)
Host/Contact: Patrick Alexander
April 5, 2023
1 p.m. to 2:15 p.m.— Hybrid
GISS Lunch Seminar
Speaker: Maria Molina (Univ Maryland)
Host/Contact: Maggie DeLessio
April 12, 2023
1 p.m. to 3 p.m.— Hybrid
GISS Lunch Seminar
Topic: My First 52 Years at GISS
Speaker: Dr. Vittorio Canuto (GISS)
Host/Contact: Maegan DeLessio
April 19, 2023
1 p.m. to 2:15 p.m.— Hybrid
GISS Lunch Seminar
Speaker: Amos Tai (Chinese Univ Hong Kong)
Host/Contact: Maggie DeLessio
April 25, 2023
11 a.m. to 12:15 p.m. — Virtual
Sea Level Rise Seminar
Speaker: Jennifer Walker (Rutgers Univ.)
Host/Contact: Patrick Alexander
April 26, 2023
1 p.m. to 2:15 p.m.
GISS Lunch Seminar
Speaker: Lorenzo Polvani (Columbia Univ)
Host/Contact: Maggie DeLessio
May 2, 2023
11 a.m. to 12:15 p.m. — Virtual
Sea Level Rise Seminar
Speaker: Karina von Schuckman (Mercator Ocean Int'l)
Host/Contact: Patrick Alexander
May 5, 2023
1 p.m. to 2:15 p.m.— Hybrid
GISS Lunch Seminar
Speaker: Ryan O'Loughlin (Queens College, CUNY)
Host/Contact: Maggie DeLessio
May 23, 2023
8 a.m. to 5:30 p.m.— Hybrid
ROCKE-3D Model Tutorial
Host/Contact: Michael Way
May 23, 2023
11 a.m. to 12:15 p.m. — Virtual
Sea Level Rise Seminar
Speaker: Shujie Wang (Penn State Univ.)
Host/Contact: Patrick Alexander
May 24, 2023
8 a.m. to 5:30 p.m.— Hybrid
ROCKE-3D Model Tutorial
Host/Contact: Michael Way

Special Events

There are no workshops, conferences, or other special events (co-)organized by NASA/GISS staff currently announced.

+ Past Meetings & Workshops

Security Note

Federal regulations require that visitors to NASA/GISS arrange in advance for a building pass. Persons attending a 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.

Persons who are not U.S. citizens or U.S. permanent residents and who may be planning a visit to GISS require that special arrangements be made. Please co-ordinate with your GISS host on this at least three weeks before your visit.

Due to implementation of the REAL ID Act (2005), a passport, state driver's license or state identification card is required for admittance to the GISS premises, which is considered a federal facility. If you do not have a state-issued license or ID that is considered REAL-ID compliant, we urge you to obtain one before one is required to enter a federal facility. Enforcement of this requirement was expected in October 2021, but has been postponed to May 2023 due to the COVID epidemic.

Please note that depending on the current COVID-19 community transmission level in New York City, visitors may be required to wear a mask while on the premises. As of mid-August 2022, a vaccination attestation form is no longer required to enter.

All visitors can expect to have their bags searched upon entry to GISS. This may include having to answer questions about personal items, including any medication the visitor may be carrying.