Hello friends and colleagues!
It’s week 1! This week visiting us from the University of New Hampshire, we have Dr. Teri Oehmke, who will be presenting on particle and pollutant transport in complex flows:
“Experiments are a powerful method to study the kinematic transport of pollutants in the environment, specifically those pollutants transported by turbulent flow…
Hello friends and colleagues!
It’s week 8! This week we have a special treat: a long anticipated visit by Dr. Eli Tziperman (Harvard).
"First half: major Sudden Stratospheric Warming events (SSWs) occur in the Arctic stratosphere during winter at a frequency of about six events per decade. An SSW features a distorted or completely collapsed stratospheric polar vortex, as well…
Hi Everybody!
It’s week five, and if you’re a surfer (or just spend your mornings and evenings watching the breaking waves and feeling melancholy) this is a CASPO seminar that you will not want to miss! Our very own Falk Feddersen is this week’s presenter!
Why surfers love offshore winds... the effect of cross-shore winds on overturning waves
"I often heard Walter Munk say that as oceanographers we needed to listen to the wisdom of sailors,…
For this week's special Tuesday seminar, let's welcome Dr. Giovanni Dematteis, visiting us from RPI. Dr. Dematteis will be presenting on the topic of developing a first-principles understanding of internal wave-driven mixing.
Diapycnal mixing in the ocean interior, largely due to breaking internal waves, is an important ingredient for understanding upwelling and horizontal circulation in the oceans. I will outline a first-principles quantification of the downscale energy fluxes in the internal-wave band, that ultimately feeds the wave-breaking, shear-instability conversion of…
Our third CASPO Seminar speaker is our very own Dr. Bernie Bastien, SIO!
Ecosystems contribute to human well-being through both market and non-market benefits. Climate change will alter the distribution of ecosystems around the world and change the flow of these benefits. The implications of ecosystem changes for human welfare depend on both the nature of these changes and the extent to which communities rely on natural systems for their well-being. In this work, we estimate country-level changes in non-market ecosystem services and…
Our second CASPO Seminar speaker of Fall 2022 is Dr. Anna-Lena Deppenmeier, visiting us from NCAR in Boulder, Colorado!
The eastern tropical Pacific cold tongue plays a major role in the global climate system. The strength of the cold tongue sets the zonal temperature gradient in the Pacific, coupling the ocean with the atmospheric Walker circulation. This coupling is an essential component of the El Niño Southern Oscillation (ENSO). The cold tongue is supplied with cold water by the equatorial undercurrent that follows the upward sloping thermocline to the east, transporting…
Join us every Wednesday at 3:30pm to hear about the latest climate, atmospheric science, and physical oceanography research!
This fall's first CASPO seminar speaker will be Dr. Eiji Masunaga, SIO, who will be discussing Internal tide dynamics in the La Jolla Canyon investigated with a numerical simulator.
Internal waves are ubiquitous oceanic phenomena and play an important role in energy and mass transport in oceans. Energetic internal tides have been observed in the La Jolla Canyon from field surveys, however, generation, propagation and…
Ocean mixing around Antarctica is a key process that influences the vertical distributions of heat and nutrients, affecting glacier and ice shelf retreats, sea ice formation and marine productivity, with implications for regional ecosystems, global sea level and climate. Here we show that collapsing glacier fronts associated with calving events trigger internal tsunamis, the propagation and breaking of which can lead to significant mixing. Observations of one such event at the West Antarctic Peninsula, during which 3-20 megatonnes of ice were discharged to the ocean, reveal rapidly…
Talk Abstract: TBA
Talk Abstract: TBA
The weak temperature gradient (WTG) approximation is extended to the basic equations on a rotating plane. The circulation is decomposed into a diabatic component that satisfies WTG balance exactly and a deviation from this balance. Scale analysis of the decomposed basic equations reveals a spectrum of motions, including unbalanced inertio-gravity waves and several systems that are in approximate WTG balance. The balanced systems include equatorial moisture modes with features reminiscent of the MJO, off-equatorial moisture modes that resemble tropical…