Meteorology & Physical Oceanography

COMPASS (Combined OCE MPO ATM Seminar Series) FRIDAY

FALL 2017

(11:00 in the Auditorium)

Aug 25 --- NO SEMINAR

Sep 01 --- NO SEMINAR

Sep 08 --- NO SEMINAR

Sep 15 --- NO SEMINAR

Sep 22 --- Student Seminars, Room MSC 343:

Sanchit Mehta (AMP)

"A Comparison of Sea Spume Production Between Fresh and Salt Water in High Wind Conditions"

Under high wind conditions, sea spray (particularly larger particles or sea spume) plays a significant role in the exchange of heat and momentum across the air-sea interface. It is thus critical for the development of tropical cyclones and other extreme marine boundary layer events that occur on a wide range of spatial-temporal scales over different bodies of water (oceans, rivers and lakes). While considerable differences are known to exist in spray formation via bubble production between saltwater and freshwater, herein is described the first laboratory experiment (conducted in the SUSTAIN facility at University of Miami) quantifying both fresh and saline spume droplet production in hurricane wind conditions (U10 around 36-54 m/s), particles with radii 80 µm to 1400 µm were observed. Spume number concentration estimates were found to increase with wind speeds across the board, with comparatively higher magnitudes (1.5-2.5 x) observed for saltwater up to 500 µm radii. Vertical profiles for number and mass concentration were observed to vary linearly with the scaled height, with comparatively steeper slopes for fresh water and more gradual slopes for salt water. While significant differences were observed in the profiles near the surface (concentrations were almost twice as large for salt water than fresh water at higher speeds), the profiles tend to converge as the wind forcing increases. The radius dependency observed for the difference in mass concentration between two media showed bimodality, with a minimum near 700-900 µm particle radii. An exponential decrease was observed in the differences in number concentration between salt and fresh water showed an exponential decrease from 100 µm through 500 µm radii with very little differences observed beyond.

Sep 29 --- Diane Palko (MPO, 1-Hour Student Seminar)

Oct 06 --- Student Seminars:

Kayleen McMonigal (MPO)

Joshua Wadler (MPO)

Mariana Bernardi Bif (OCE)

Oct 13 --- Jörg Imberger (Adjunct Professor, RSMAS)

"Connecting Human Tribal Behavior to the Internet"

Humans evolved from apes around 150,000 years ago. Recent research suggests that the first human societies were egalitarian, with little aggression between tribes. It was only where population density climbed to above about 1 person/km2 that severe, inter-group aggression (wars) emerged due to environmental and ecological stress. The resulting conflict led to purges such as the14th Century Inquisition and wars such World War II. The inter people stress seemed to lead to evolutionary changes such that the male became the aggressor and the female the supporter within a hierarchical tribal structure. Maintaining tribal cohesion required leaders who could keep their communities in control, so evolved the leaders motivated by good intentions, greed, need for acclaim and or simple the need to punish. As the population on earth grew and inter-people communications developed, tribes became larger culminating in World War II, which nearly impacted everyone on earth. In order to better understand the mechanisms of a tribal evolution, I examine the development of three tribes that evolved in the last 1,000 years, my own family, the Catholic Church and Hitler’s 3rd Reich. Hitler and Goebbels developed an acute case of inferiority complex about the Jewish intellectual superiority, the brain of Germany, and lashed out in a similar fashion to the Church in the 14th Century. The difference being that the tools of control that the engineers had developed by the mid 1930’s gave the Hitler's Regime larger reach and much greater action; the machines of war, communications and manufacturing all had greatly improved.

Since then four key characteristics have accelerated in their development. First, the introduction of the internet allowing mass communications has opened the door for global control, second, there has been an explosion in consumption necessitating greater elbow room, third, genetic manipulation is poised to extend life expectancy by nearly 100% greatly consolidating vested interests and fourth, the world is now finite and all growth must be at the expense of an existing activity.

Biologists tell me that genetic diversity is necessary for the stability of a species. Humans seem to have taken the opposite road, ignoring their own research results. Intellectuals are feared and branded as heretics in order to minimize any disturbance. Multiculturalism, a fancy world for mixing genetically, is advocated as politically correct even though cultural diversity is known to improve stability. Economic globalization is used for material efficiency, even though it is akin to slavery and is bringing about a rapid increase in “relative poverty”, the single most important factor leading to mental illness. Is cultural diversity necessary for political stability or will humans exist more peacefully under the umbrella of a single tribe?

Oct 20 --- Student Seminars:

Samantha Ballard (AMP)

Heather Hunter (AMP)

Lisa Nyman (AMP)

Oct 27 --- Student Seminars, Room MSC 343:

Luo Bingkun (MPO)

Samantha Kramer (MPO)

Rebecca Evans (MPO)

Nov 03 --- Student Seminars, Room MSC 343:

Andrew Smith (MPO)

Breanna Zavadoff (MPO)

Shun-Nan Wu (MPO)

Nov 10 --- Student Seminars, Room MSC 343:

Gedun Chen (MAC)

Hanjing Dai (AMP)

Alexis Denton (AMP)

Nov 17 --- Student Seminars, Room MSC 343:

Nektaria Ntaganou (MPO)

Tiago Bilo (MPO)

Gregory Koman (MPO)

Nov 24 --- THANKSGIVING BREAK

Dec 01 --- Student Seminars, Room MSC 343:

Anne Barkley (ATM)

Lisa Bucci (ATM)

Kurt Hansen (ATM)

Szandra Peters (MPO)

Dec 08 --- Eleanor Middlemas (MPO, 1-Hour Student Seminar)