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Chapter 7 100 Years of the Ocean General Circulation
CHAPTER 7 WUNSCH AND FERRARI 7.1 Chapter 7 100 Years of the Ocean General Circulation CARL WUNSCH Massachusetts Institute of Technology, and Harvard University, Cambridge, Massachusetts RAFFAELE FERRARI Massachusetts Institute of Technology, Cambridge, Massachusetts ABSTRACT The central change in understanding of the ocean circulation during the past 100 years has been its emergence as an intensely time-dependent, effectively turbulent and wave-dominated, flow. Early technol- ogies for making the difficult observations were adequate only to depict large-scale, quasi-steady flows. With the electronic revolution of the past 501 years, the emergence of geophysical fluid dynamics, the strongly inhomogeneous time-dependent nature of oceanic circulation physics finally emerged. Mesoscale (balanced), submesoscale oceanic eddies at 100-km horizontal scales and shorter, and internal waves are now known to be central to much of the behavior of the system. Ocean circulation is now recognized to involve both eddies and larger-scale flows with dominant elements and their interactions varying among the classical gyres, the boundary current regions, the Southern Ocean, and the tropics. 1. Introduction physical regimes, understanding of the ocean until relatively recently greatly lagged that of the atmo- In the past 100 years, understanding of the general sphere. As in almost all of fluid dynamics, progress circulation of the ocean has shifted from treating it as an in understanding has required an intimate partnership essentially laminar, steady-state, slow, almost geological, between theoretical description and observational or flow, to that of a perpetually changing fluid, best charac- laboratory tests. The basic feature of the fluid dynamics terized as intensely turbulent with kinetic energy domi- of the ocean, as opposed to that of the atmosphere, has nated by time-varying flows. -
Turbulent Surface Exchange During the Arctic Ocean 2018 Expedition
Geophysical Research Abstracts Vol. 21, EGU2019-8362, 2019 EGU General Assembly 2019 © Author(s) 2019. CC Attribution 4.0 license. Turbulent surface exchange during the Arctic Ocean 2018 expedition John Prytherch (1), Michael Tjernström (1), Ian Brooks (2), Peggy Achtert (3), Ben Moat (4), and Margaret Yelland (4) (1) MISU, Stockholm University, Stockholm, Sweden ([email protected]), (2) Institute for Climate & Atmospheric Science, University of Leeds, Leeds, UK, (3) Meteorology, University of Reading, Reading, UK, (4) Marine Physics and Ocean Climate, National Oceanography Centre, Southampton, UK Turbulence-driven air-sea and air-ice exchanges of momentum, heat, moisture and trace gases in sea-ice regions are key boundary layer processes. Turbulent heat fluxes are important for the surface energy budget and determine the interactions between sea ice, the atmospheric boundary layer and clouds. Atmosphere-ice/ocean momentum exchange in the presence of sea ice is determined from surface drag, or roughness. Both drag and heat flux coefficients are prescribed in numerical weather prediction, climate and Earth system models as functions of stability. In addition, sea ice acts as a near-impermeable lid to air-sea gas exchange, but is also hypothesised to enhance gas transfer rates in open water areas (e.g. leads) through physical processes such as increased surface-ocean turbulence from ice-water shear and ice-edge form drag. There are few direct observations of turbulence-driven surface exchange from which to develop parameterisations, particularly in the High (> 85N) Arctic. Recent rapid changes to sea-ice conditions in the region also make older observations less applicable. -
The Voyage of the “Challenger”
The Voyage of the "Challenger" From 1872 to 1876 a doughty little ship sailed the seven seas and gathered an unprecedented amount of information about them, thereby founding the science of oceanography by Herbert S. Bailey, Jr. UST 77 years ago this month a spar since that pioneering voyage. It was the philosophy at the University of Edin decked little ship of 2,300 tons Challenger, rigged with crude but in burgh. He did some dredging in the sailed into the harbor of Spithead, genious sounding equipment, that Aegean Sea, studying the distribution JEngland. She was home from a voyage charted what is still our basic map of of flora and fauna and their relation to of three and a half years and 68,890 the world under the oceans. depths, temperatures and other factors. miles over the seven seas. Her expedition Before the Challenger, only a few iso Forbes never dredged deeper than about had been a bold attack upon the un lated soundings had been taken in the 1,200 feet, and he acquired some curious known in the tradition of the great sea deep seas. Magellan is believed to have notions, including a belief that nothing explorations of the 15th and 16th cen made the Rrst. During his voyage around lived in the sea below 1,500 feet. But turies. The unknown she had explored the globe in 1521 he lowered hand lines his pioneering work led the way for the was the sea bottom. When she had left to a depth of perhaps 200 fathoms Challenger expedition. -
For Immediate Release / July 23, 2020 the San Francisco
Contact: Public Relations San Francisco Symphony (415) 503-5474 [email protected] sfsymphony.org/press FOR IMMEDIATE RELEASE / JULY 23, 2020 Click here to access the Online Press Kit, which includes downloadable images, artist bios, and a PDF of this press release. THE SAN FRANCISCO SYMPHONY LAUNCHES SUMMER 2020 PROGRAMMING Digital programming includes CURRENTS—a four-part series curated and hosted by Michael Morgan in collaboration with San Francisco Symphony musicians and guest artists from the Bay Area CURRENTS Video Series and companion Podcast Series explore the intersections between classical music and Chinese, Jazz, Hip Hop, and Mexican musical cultures CURRENTS Explore & Create further guides conversations, activities, and opportunities for learning, curated and hosted by Daniel Bartholomew-Poyser Summer programming also features intimate, outdoor 1:1 Concerts performed by San Francisco Symphony musicians to one audience member at a time CURRENTS content can be accessed via https://www.sfsymphony.org/CURRENTS SAN FRANCISCO, CA—Today the San Francisco Symphony launches CURRENTS, dynamic online programming featuring music and conversation around the changing perspectives for symphony orchestras today, curated and hosted by conductor Michael Morgan and San Francisco Symphony musicians. CURRENTS includes a four-part video series and companion podcast series, telling the stories and sharing the music of Bay Area communities by highlighting classical music’s changing and symbiotic relationship with vital influences and influencers in Chinese, Jazz, Hip Hop, and Mexican cultures. Both series prompt bespoke performances and candid, personal reflections by members of the San Francisco Symphony and local musicians, personalities, and creators, which reflect a synergy of perspectives. -
6 April 2021
6 April 2021 12:01 AM George Frideric Handel (1685-1759) Lascia la spina, from Il Trionfo del tempo e del disinganno Julia Lezhneva (soprano), Wroclaw Baroque Orchestra, Giovanni Antonini (conductor) PLPR 12:09 AM Jacob Obrecht (1457-1505) J'ay pris amours for ensemble Amsterdam Loeki Stardust Quartet NLNOS 12:15 AM Claude Debussy (1862-1918), Felix Greissle (arranger) Prelude a l'apres-midi d'un faune arr. for chamber ensemble Thomas Kay (flute), Canadian Chamber Ensemble, Raffi Armenian (conductor) CACBC 12:25 AM Joseph Haydn (1732-1809) Trio for keyboard and strings in G major (H.15.25) 'Gypsy Rondo' Grieg Trio NONRK 12:40 AM Franz Schubert (1797-1828) Symphony no 3 in D major (D.200) Norwegian Radio Orchestra, Olaf Henzold (conductor) NONRK 01:04 AM Erkki Melartin (1875-1937) Easy Pieces, Op 121 Arto Noras (cello), Tapani Valsta (piano) FIYLE 01:20 AM Sergey Rachmaninov (1873-1943) Variations on a Theme of Corelli, Op 42 Duncan Gifford (piano) AUABC 01:40 AM Ralph Vaughan Williams (1872-1958) Oboe Concerto in A minor Matthias Arter (oboe), I Tempi Chamber Orchestra, Gevorg Gharabekyan (conductor) CHSRF 02:01 AM Paul Dukas (1865-1935) Fanfare from 'La Péri' Polish National Radio Symphony Orchestra, Katowice, Domingo Hindoyan (conductor) PLPR 02:03 AM Paul Dukas (1865-1935) La Péri Polish National Radio Symphony Orchestra, Katowice, Domingo Hindoyan (conductor) PLPR 02:22 AM Samuel Barber (1910-1981) Piano Concerto, Op 38 Garrick Ohlsson (piano), Polish National Radio Symphony Orchestra, Katowice, Domingo Hindoyan (conductor) PLPR 02:51 -
Boston Symphony Orchestra Concert Programs, Season 129, 2009
BOSTON SYMPHONY ORCHESTRA boston" James Levine, Music Director symphony ORCHESTRA Bernard Haitink, Conductor Emeritus JAMES LEV1NE Seiji Ozawa, Music Director Laureate Music Director « 129th Season, 2009-2010 w CHAMBER TEA VI Friday, April 23, at 2:30 COMMUNITY CONCERT IX Sunday, April 25, at 3, at Villa Victoria Center for the Arts, South End, Boston COMMUNITY CONCERT X Sunday, May 2, at 3, at New Life Community Church, Framingham The free Community Concerts are made possible by a generous grant from The Lowell Institute. CATHERINE FRENCH, violin (1st violin in Strauss) IKUKO MIZUNO, violin (1st violin in Brahms) KAZUKO MATSUSAKA, viola (1st viola in Strauss) EDWARD GAZOULEAS, viola (1st viola in Brahms) BLAISE DEJARDIN, cello (1st cello in Strauss) MIHAIL JOJATU, cello (1st cello in Brahms) STRAUSS String Sextet from the opera Capriccio BRAHMS String Sextet No. 1 in B-flat, Opus 18 Allegro ma non troppo Andante, ma moderato Scherzo: Allegro molto; Trio: Animato Rondo: Poco Allegretto e grazioso Weeks 24/25 Richard Strauss (1864-1949) String Sextet from the opera Capriccio Strauss completed Capriccio, the last of his fifteen operas, on August 8, 1941, and the first performance took place in Munich on October 28, 1942. Clemens Krauss, who had also written the libretto, was the conductor, and the role of Countess Madeleine, the main character, was taken by Krauss' s wife, the soprano Viorica Ursuleac. The year 1941 found Strauss and his own wife in poor health, depressed by the war, worried about prospects for their Jewish daughter-in-law and half- Jewish grandson, and dismayed by the ever more chilly treatment the composer was getting at the hands of the German government (Strauss was not a Nazi, but he was not an outspoken opponent either, and he despised the Nazis no more than any other political party). -
Miles Down! Oceanography Through History
MILES DOWN! OCEANOGRAPHY THROUGH HISTORY The history of oceanography is an international story of invention, individual adventure, and exploration that remains little-known. This exhibition presents an historical overview, using timelines, text, photographs, and profiles of oceanographic expeditions and individual scientists from around the world. Image: Colette Kerry From water’s edge, the oceans are as mysterious as the stars. In the 21st century, deep-sea exploration – like space exploration - is no longer a fantastic idea, but a fact of scientific life. How did we move below the surface to study the depths of the sea? This exhibition tells the story of curious humans posing questions about the oceans and developing the tools and technology to move miles down to explore the sea. The oceans that cover 71% of the world’s surface hide complex worlds within their depths. How ocean waters behave, what creatures inhabit the seas, what lies on the ocean floors, what makes up seawater: these are the questions that underlie the scientific study of the oceans - the science of oceanography. Oceanography is the scientific study of the oceans as complex, interrelated systems. It is a mixed science that combines many different approaches to understanding the watery portion of our planet. Physics explores the physical properties of the oceans, the currents and waves. It’s a study of matter and energy and the relation between them. Chemistry is concerned with the properties, composition, and structure of substances in the oceans and the changes they undergo when they combine or react. The geology of the seafloor explores the earth’s history, composition, structure and processes. -
Symphony Nova Scotia Fonds (MS-5-14)
Dalhousie University Archives Finding Aid - Symphony Nova Scotia fonds (MS-5-14) Generated by the Archives Catalogue and Online Collections on January 24, 2017 Dalhousie University Archives 6225 University Avenue, 5th Floor, Killam Memorial Library Halifax Nova Scotia Canada B3H 4R2 Telephone: 902-494-3615 Email: [email protected] http://dal.ca/archives http://findingaids.library.dal.ca/symphony-nova-scotia-fonds Symphony Nova Scotia fonds Table of contents Summary information ...................................................................................................................................... 4 Administrative history / Biographical sketch .................................................................................................. 4 Scope and content ........................................................................................................................................... 5 Notes ................................................................................................................................................................ 5 Access points ................................................................................................................................................... 6 Collection holdings .......................................................................................................................................... 7 Administration and finance records of Symphony Nova Scotia (1984-2003) ............................................. 7 Budgets records of Symphony -
Nova Scotia Inland Water Boundaries Item River, Stream Or Brook
SCHEDULE II 1. (Subsection 2(1)) Nova Scotia inland water boundaries Item River, Stream or Brook Boundary or Reference Point Annapolis County 1. Annapolis River The highway bridge on Queen Street in Bridgetown. 2. Moose River The Highway 1 bridge. Antigonish County 3. Monastery Brook The Highway 104 bridge. 4. Pomquet River The CN Railway bridge. 5. Rights River The CN Railway bridge east of Antigonish. 6. South River The Highway 104 bridge. 7. Tracadie River The Highway 104 bridge. 8. West River The CN Railway bridge east of Antigonish. Cape Breton County 9. Catalone River The highway bridge at Catalone. 10. Fifes Brook (Aconi Brook) The highway bridge at Mill Pond. 11. Gerratt Brook (Gerards Brook) The highway bridge at Victoria Bridge. 12. Mira River The Highway 1 bridge. 13. Six Mile Brook (Lorraine The first bridge upstream from Big Lorraine Harbour. Brook) 14. Sydney River The Sysco Dam at Sydney River. Colchester County 15. Bass River The highway bridge at Bass River. 16. Chiganois River The Highway 2 bridge. 17. Debert River The confluence of the Folly and Debert Rivers. 18. Economy River The highway bridge at Economy. 19. Folly River The confluence of the Debert and Folly Rivers. 20. French River The Highway 6 bridge. 21. Great Village River The aboiteau at the dyke. 22. North River The confluence of the Salmon and North Rivers. 23. Portapique River The highway bridge at Portapique. 24. Salmon River The confluence of the North and Salmon Rivers. 25. Stewiacke River The highway bridge at Stewiacke. 26. Waughs River The Highway 6 bridge. -
Chapter 7 100 Years of the Ocean General Circulation
CHAPTER 7 WUNSCH AND FERRARI 7.1 Chapter 7 100 Years of the Ocean General Circulation CARL WUNSCH Massachusetts Institute of Technology, and Harvard University, Cambridge, Massachusetts RAFFAELE FERRARI Massachusetts Institute of Technology, Cambridge, Massachusetts ABSTRACT The central change in understanding of the ocean circulation during the past 100 years has been its emergence as an intensely time-dependent, effectively turbulent and wave-dominated, flow. Early technol- ogies for making the difficult observations were adequate only to depict large-scale, quasi-steady flows. With the electronic revolution of the past 501 years, the emergence of geophysical fluid dynamics, the strongly inhomogeneous time-dependent nature of oceanic circulation physics finally emerged. Mesoscale (balanced), submesoscale oceanic eddies at 100-km horizontal scales and shorter, and internal waves are now known to be central to much of the behavior of the system. Ocean circulation is now recognized to involve both eddies and larger-scale flows with dominant elements and their interactions varying among the classical gyres, the boundary current regions, the Southern Ocean, and the tropics. 1. Introduction physical regimes, understanding of the ocean until relatively recently greatly lagged that of the atmo- In the past 100 years, understanding of the general sphere. As in almost all of fluid dynamics, progress circulation of the ocean has shifted from treating it as an in understanding has required an intimate partnership essentially laminar, steady-state, slow, almost geological, between theoretical description and observational or flow, to that of a perpetually changing fluid, best charac- laboratory tests. The basic feature of the fluid dynamics terized as intensely turbulent with kinetic energy domi- of the ocean, as opposed to that of the atmosphere, has nated by time-varying flows. -
Directory of Source Materials for the History of Oceanography; UNESCO
Unesco technical papers in marine science eo Directory of source materials for the history of oceanography Unesco !990 UNESCO TECHNICAL PAPERS IN MARINE SCIENCE Numbers 2. 3. 5, 6, 7,9, IO, II. 12, 13. 15. 16, 17. 18, 20.21.22,23. 24, 27. 28, 29, 30 and 32. arc out of stock. For full titles see inside back cover. Numbers 1, 4, 8 and 14 are incorporated in No. 27. No. Year SCOR No Year SCOR wo WG 19 Manne Science leaching at (he Univcrsit) (.evei 45 The International System of Units (SI) Kepon of lhe Unesco Workshop on Universa) in Oceanography Report of IAPSO Working Cunicula-/!iailabte in Spannh ami Arabic 1974 Group on Symbols. Units and Nomenclature in Physical Oceanography (SUN) 1985 25 Marine science programme for the Red Scj. Recommendations of the workshop held in 46 Opportunities and problems in Hremerhasen. FKG, 22*25 October 1974. satellite measurements of (he sea sponsored h) the Deutsche Forschungsgemein- Report of SCOR Working Group 70 schaft and Unesco 1976 — Available in Ar.. Ch., F.. R.. and S. 1986 WG 70 26 Marine science in the Gulf arca-Rcport of a 47 Research on coastal marine systems consullatisc meeting. Paris, IM4 November 1975 1976 — Report of the third meeting of the Uncsco/SCOR/IABO 3| Coastal bgoon survey (1976-1978) 198tï — consultative panel on coastal systems October 1984 1986 33 Coastal lagoon research, present and future Proceedings of a seminar. Duke University. 48 Coastal off-shore ecosystems relationships August 1978 (Unesco. IABO). 1981 — Final Report of SCOR/IABO/ Unesco Working Group 65 34 The carbon budget of the oceans Report of a Texel. -
Winter / Spring 2007
FOLLOWING SEASEA 2005-2006 Annual Report Issue Winter/Spring 2007 sea at thirty-five TABLETABLE OFOF CONTENTSCONTENTS Winter/Spring 2007 Cover Story SEA at Thirty-five SEA celebrates its 35th Anniversary year . .1 Features Ann Wickes Brewer A tribute to a SEA trustee emeritus . .4 Heading for a ‘roasted world’ John Bullard’s Boston Globe editorial . .9 In Every Issue Passages Events and news of general interest . .8 Scuttlebutt Alumni news from around the world . .10 Science Corner The evolution of oceanographic equipment . .26 Currents Mariah Klingsmith and Jarod Maggio (C-187) volunteer for the Peace Corps in the Philippines . .28 Special Report 2005-2006 Report to Donors From the desk of Board Chair, Linda Cox Maguire . .14 Annual Report . .15 Following SEA Winter/Spring 2007 Editor: Jan Wagner Cover Design: Lori Dolby Design: MBDesign Photography: Sandie Allen, Laurie Bullard, courtesy Colgate University, Mariah Klingsmith, Jarod Maggio, Amy Radar, courtesy Sparkman & Stephens, Jan Wagner, Become an alumni enrollment volunteer! For more information, Jim Watters, Laurie Weitzen contact Laurie Weitzen at (800) 552-3633, ext. 12 or [email protected] Following SEA is available online. If you’d like your prints, slides, or digital images considered for the next issue contact: Kerry Sullivan, ext. 20 or [email protected]. Sea Education Association, Inc., PO Box 6, Woods Hole, Massachusetts 02543 Phone 800-552-3633 Fax 508-457-4673 www.sea.edu Recycled Chlorine-Free Paper / Soy Ink captains October 1982 4 sea A lesson in determinationat thirty-five The story of SEA’s founding and the early years of struggle to gain a pathway to success is a lesson in determination on the part of Corwith Cramer, Jr.