Seminars & Colloquia

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.

Events marked "Virtual Only" are presented on-line for remote attendance only. Please consult with the event contact/host for connection details.

This event listing was last updated 2020-10-27. All times shown are New York City local.


Tuesday, October 27, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Topic: From Changing Ice to Working with Greenlandic Communities -- Greenland Rising
Speaker: Robin Bell (Columbia/LDEO)
More info: Abstract
Host/Contact: Craig Rye

Sea Level Rise Seminar
Speaker: Robin Bell (Columbia/LDEO)
Title: From Changing Ice to Working with Greenlandic Communities -- Greenland Rising


This is an on-line, virtual presentation only. Please consult with event host Craig Rye for connection details.


Abstract:
Studying the ice sheets as a system from the geologic underpinning to the coupling with the global oceans and atmosphere is essential to building robust projections of how these massive pieces of ice will change in the future. Changing sea level along the coastlines around the globe is the justification for almost every glaciologic proposal funded today. But how do we actually work to connect our work with communities? A team at Lamont have developed a program funded through NSF’s Navigating the New Arctic called Greenland Rising. The scientific framing is that across the Arctic, as glaciers and ice sheets retreat in the coming years, shallow environments and key marine habitats will change. Sea level will rise in some places and drop dramatically in others. These sea level changes throughout the Arctic will be the combined response of the solid Earth (uplift or subsidence) and gravity field to changes in past, present, and futures glaciers and ice sheets. Paired with distinct geologic settings, sea level change will be impacting infrastructure, fisheries, and navigation across Arctic coastal communities. A single number of projected sea level change from an ice sheet model in the coming decades is insufficient for communities in the New Arctic. Communities around the Arctic and around the globe will need to develop a framework for adapting to these changes that reflect their proximity to the changing ice and their local geologic setting. Due to the adjacent ice sheet, the signals of shallow water change in Greenland will be large -- the Greenland GPS Network (GNET) has documented uplift rates up to 23 mm/yr and subsidence rates of 5 mm/year in the southwest. Given the large changes, together with the ongoing economic, mining, natural resources and infrastructure development occurring in Greenland, it is critical to provide Greenlandic communities with a comprehensive, quantitative framework for understanding how shallow water environments will change in coming decades. The goal of the Greenland Rising project is to bring together a team focus for the first time on the natural, social, and built environment of Arctic communities proximal to a changing ice sheet. Building on strong partnerships with our Greenlandic colleagues we have been able to move forward through the pandemic.


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Tuesday, November 3, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Laure Zanna (NYU)
Host/Contact: Craig Rye
Wednesday, November 4, 2020
1:00 p.m. to 2:15 p.m. — Virtual Only
GISS Lunch Seminar
Topic: Use of machine learning and up-to-date algorithms to improve GISS ModelE aerosol number simulations: Implications for indirect aerosol forcing
Speaker: Fangqun Yu (SUNY Albany)
More info: Abstract
Host/Contact: Clara Orbe

GISS Lunch Seminar
Speaker: Fangqun Yu (SUNY Albany)
Title: Use of machine learning and up-to-date algorithms to improve GISS ModelE aerosol number simulations: Implications for indirect aerosol forcing


This is an on-line, virtual presentation only. Please consult with event host Clara Orbe for connection details.


Abstract:
All cloud droplets formed in the atmosphere start with tiny particles that act as cloud condensation nuclei (CCN). These particles can alter cloud properties and precipitation, and their effects on cloud radiative forcing remain the largest source of uncertainty in climate prediction. The GISS global climate models have been making and will continue to make important contributions to the Coupled Model Intercomparison Project (CMIP) and IPCC climate change assessments. The recent historical simulations of the GISS ModelE2.1 for CMIP6 are based on either a mass-based One-Moment Aerosol (OMA) or a quadrature-method-of-moments-based MATRIX aerosol module. The aerosol radiative forcing values and trends over the past decades differ for MATRIX and OMA, even though the host model and emissions were the same. One critical step toward better modeling aerosols' effect on clouds is to have a robust representation of major aerosol processes that are important for determining particle number concentrations (PNC).


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Friday, November 6, 2020
11:00 a.m. to 2:00 p.m. — Virtual Only
Michael Mishchenko Memorial
Host/Contact: Brian Cairns
Tuesday, November 10, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Alan Blumberg (Jupiter)
Host/Contact: Craig Rye
Tuesday, November 17, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Haydee Salmun (CUNY)
Host/Contact: Craig Rye
Tuesday, December 1, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Peter Sheng (Univ. Florida)
Host/Contact: Craig Rye
Tuesday, December 15, 2020
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Shanice Baily and Una Miller (Columbia/LDEO)
Host/Contact: Craig Rye
Tuesday, January 12, 2021
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: Spencer Jones (Columbia/LDEO)
Host/Contact: Craig Rye
Tuesday, February 16, 2021
11:00 a.m. to 12:15 p.m. — Virtual Only
Sea Level Rise Seminar
Speaker: David Holland (NYU)
Host/Contact: Craig Rye

Special Events

Upcoming special events (co-)organized by NASA/GISS staff include:

19th AeroCom / 8th Aerosat Workshop

An on-line only workshop: Oct. 12-16, 2020.
+ Go to Website

AgMIP8 Virtual Workshop

An on-line only workshop: Oct. 12-16, 2020.
+ Go to Website

+ 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.

Due to implementation of the REAL ID Act (2005), a state driver's license or identification card is currently (as of spring 2020) required for admittance to the GISS premises, which is considered a federal facility. However, if you have a state-issued license or ID that is not considered REAL-ID compliant, you are urged to obtain one before entrance regulations change, which is expected to occur Oct. 1, 2021.

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.

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.