GEO Department Lecture

Tue, Sep 24, 2019, 12:30 pm to 1:20 pm

Multi-decadal climate changes have significant ecological and societal impacts. Even small changes in temperature and rainfall, when they persist for decades, can affect many sectors, from water resource management to agriculture to coastal-zone planning. Multi-decadal fluctuations have long been assumed to be driven by the ocean circulation. Focusing on the Atlantic, we discuss challenges to diagnosing the drivers of climate changes at these timescales, and question this longstanding assumption.

In particular, most previous explanations identify the driver of the Atlantic multi-decadal variability (AMV) as natural changes in the ocean circulation. Applying a novel experimental design to climate models, we argue that this is not the case. Instead, we show that common diagnostic frameworks often fail to identify the main drivers, and we propose a more complete attribution of the causes of AMV, including multi-decadal changes in anthropogenic forcing. We discuss the implications of these results for predicting climate changes of the coming decades.

Location: 
Guyot 10
Speaker(s): 

PEI Faculty Seminar

Tue, Sep 17, 2019, 12:30 am to 1:20 pm
Location: Guyot 10

GFDL Lunchtime Seminar

Wed, Sep 18, 2019, 12:00 pm to 1:00 pm
Location: Smagorinsky Seminar Room 209

Andlinger Center Highlight Seminar

Thu, Sep 19, 2019, 12:30 pm to 1:30 pm
Location: Maeder Hall

Environmental Geology & Geochemistry Seminar (EGGS) Seminar

Thu, Sep 19, 2019, 12:30 pm to 1:30 pm
Location: Guyot 220

GFDL Formal Seminar

Thu, Sep 19, 2019, 2:00 pm to 3:00 pm
Location: Smagorinsky Seminar Room 209

GEO Solid Earth Brown Bag

Fri, Sep 20, 2019, 12:00 pm to 1:00 pm
Location: Guyot 220

David Bradford Energy and Environmental Policy Seminar

Mon, Sep 23, 2019, 12:15 pm to 1:15 pm
Location: 300 Wallace Hall

GEO/AOS/ PEI Climate Seminar

Mon, Sep 23, 2019, 4:00 pm to 5:00 pm

GEO Department Lecture

Tue, Sep 24, 2019, 12:30 pm to 1:20 pm
Location: Guyot 10

GFDL Lunchtime Seminar

Wed, Sep 25, 2019, 12:00 pm to 1:00 pm
Location: Smagorinsky Seminar Room 209