http://oceans.mit.edu America/New_York America/New_York America/New_York 20171105T020000 -0400 -0500 20181104T020000 EST 20180311T020000 -0500 -0400 EDT 9vmm93g6p7gf3u8an5pue6p2i4@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures David Battisti Professor of Atmospheric Sciences Univ. of Washington 20150508T140000 20150508T153000 MIT, 54-915 0

Houghton Lecture – Quantifying climate forcings and feedbacks in coupled climate simulations of the last millennium.

f9n7q1clvrqar5vn39me4mnrtk@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150519T110000 20150519T120000 MIT, 54-915 0

Houghton Lecture – Overview and Global Circulation

nomjqudjmlgo5l9q72orgmks5o@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150521T110000 20150521T120000 MIT, 54-915 0

Houghton Lecture – Stratospheric Temperature Trends

t3bv4b3p5a7r3ke93mf97b0nm8@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150526T110000 20150526T120000 MIT, 54-915 0

Houghton Lecture – Asian monsoon anticyclone

mm9hojplisf5pp3g1ptkpsfflk@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150528T110000 20150528T120000 MIT, 54-915 0

Houghton Lecture – Stratopheric water vapor

pvh55vrk3hj3fp22qqs9ptn7c0@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150601T110000 20150601T120000 MIT, 54-915 0

Houghton Lecture – Tropical tropopause layer

0s95uep1qshbtthh4mjo86v934@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Dr. William Randel Senior Scientist and Head for Remote Sensing, Atmospheric Chemistry Observations and Modeling Laboratory, NCAR The global upper troposphere - lower stratosphere (UTLS) is a transition region of strong dynamical and chemical variability, with contrasts in circulation and chemical behavior between the troposphere and stratosphere. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent requirements on observing and modeling systems. These lectures will focus on a series of topics related to the observed behavior of UTLS circulation, transport and chemical variability, as derived from satellite measurements combined with meteorological data sets. 20150603T133000 20150603T143000 MIT, 54-915 0

Houghton Lecture – Tropical variability observed in GPS data

gnvb5p0kei47uaoqlvlq4n5tuo@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures The contemporary global carbon budget. The global carbon cycle plays a key role in regulating climate and climate change. Natural reservoirs on land and in the ocean hold large quantities of carbon, which is exchanged with the atmosphere on time scales ranging from seconds to hundreds of thousands of years. This first lecture will explain what we know about the contemporary carbon cycle. It will detail the processes that regulate the storage of carbon in the terrestrial biosphere and in the ocean and present the latest data on the trends and variability in these ‘carbon sinks’. The observed changes in the carbon sinks will be discussed in the context of a changing climate. 20161007T090000 20161007T100000 54-915 0

Houghton Lecture – Corrine Le Quere

qeu1ldeocd0j7r30qpn9vin87s@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Marine ecosystems and ocean acidification. The ocean holds 50 times more carbon than the atmosphere. Because of its large buffer capacity, the ocean will eventually absorb 60 to 85% of the carbon dioxide emitted to the atmosphere on a time scale of 1000 years or longer. However the uptake of carbon dioxide by the ocean has the side effect of acidifying the water, with negative consequences for marine ecosystems and unclear implications for the functioning of the marine carbon cycle. This lecture will detail the linkages between marine ecosystem processes (from bacteria to jellyfish) and the carbon cycle. It will show how ecosystem processes can be understood through their biogeochemical functionality, and explain the knowns and unknowns of the impacts of ocean acidification. The lecture will end with a discussion of how changes in marine ecosystems could have knock on effects on climate regulation. 20161014T090000 20161014T100000 54-915 0

Houghton Lecture – Corrine Le Quere

hnppmp72jfa5kt129out5evpsg@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Potential and risks of Carbon Geoengineerin. Multiple options have been proposed to deliberately enhance the storage of carbon in natural reservoirs, and thus reduce the magnitude of climate change and/or the efforts otherwise needed to reduce greenhouse gas emissions directly. These ‘Carbon Geoengineering’ options range from afforestation to bio-energy with carbon capture and storage to ocean iron fertilisation. But what is their potential (and their costs!), and what are the possible unintended consequences? This lecture will give an overview of the current understanding on this rapidly moving topic. 20161021T090000 20161021T100000 54-915 0

Houghton Lecture – Corrine Le Quere

toa1t42k6tp04at5csb45hridc@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Reaching net zero carbon balance in the 21st Century. The Paris Agreement on climate change has an ambition of balancing the global emissions and sinks of greenhouse gases in the second half of this century in order to limit climate change and its impacts. This lecture will explain the scientific understanding behind the links between global temperature change and cumulative carbon emissions, and detail the underlying time scales, amplitude of change, and uncertainties. It will present a range of model projections of climate change this century and discuss their implicit assumptions about future carbon management and future response of the natural carbon cycle to climate change. The lecture will also discuss the risks of large and non-linear responses of the carbon cycle to a changing climate (so-called ‘tipping points’) and their potential consequences. It will conclude the full lecture series by suggesting ways to support societal responses to climate change that the students might like to pursue throughout their careers. 20161028T090000 20161028T100000 54-915 0

Houghton Lecture – Corrine Le Quere

6bp5skbdjcmosblm18biliepgk@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Humidity-cloud-precipitation feedbacks and convective organization 20161103T140000 20161103T150000 54-915 0

Houghton Lecture – Chris Bretherton (Univ. of Washington)

11nvqng7jvau2ap5u1ieapltuo@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Insights from high-resolution simulation of cloud feedbacks 20161117T140000 20161117T150000 54-915 0

Houghton Lecture – Chris Bretherton (Univ. of Washington)

gljvm978hngma95e8hb8m9lea8@google.com 20180503T070751Z MIT Seminar | PAOC Houghton Lectures Ultraparameterization: Using large eddy simulation for global simulation of boundary layer clouds and climate 20161208T140000 20161208T150000 54-915 0

Houghton Lecture – Chris Bretherton (Univ. of Washington)