1,722,690 research outputs found
The Starbuck essays of Henry Stommel
No full textFrom the Forward: These essays appeared from time to time over a number of years in The Enterprise, the community newspaper of Falmouth, Massachusetts.
I first encountered "Starbuck" as a youthful editor some forty years ago.
We were early in the cold war. We were in the McCarthy era. Inspired
by McCarthy, persons ambitious for attention were going about the country
discovering Communists. One of these Paul Reveres of the cold war
came to address some gathering on Cape Cod and announced to a startled
audience that there were-he knew for a fact-a thousand or more dedicated
Communists living on Cape Cod.
A thrill of excitement ran through that part of the community that
enjoyed alarms and nourished the idea that there were Russian spies everywhere
in the land. Kicking around the newspaper office was a Rotary Club handbook that
listed the members of the several Rotary clubs on the Cape. I counted the
names. They added up to a couple of hundred. So I ran an editorial saying
that there seemed to be more Communists than Rotarians on Cape Cod. It was the sort of appeal to the ridiculous that delighted Hank
Stommel, and a day or so later he came to me with an appreciative note
that was signed "Starbuck." I regret the note isn't preserved. I remember
that it was amusing and to the point and that I wished that I had written it.
I had met Hank Stommel, but I did not yet know him. That was the
star. Encouraged, I like to think, by my appreciation, the "Starbuck" letters
began to arrive at The Enterprise offce.
These letters, which I correctly called essays, speak wonderfully for
themselves.
Reading the "Starbuck" letters will suggest the pleasure of spending a
sociable evening with Hank Stommel over beer and fresh-shucked oysters.
I can hear his laughter now
Episode 091 - Jesse Stommel
No full textJesse Stommel is an author, speaker, and teacher with a focus on education, critical digital pedagogy, and documentary film. He’s the co-founder of the Digital Pedagogy Lab, a fantastic professional development workshop for those interested in critical digital pedagogy. He’s the co-founder of Hybrid Pedagogy, the journal of critical digital pedagogy. And he’s the co-author of An Urgency of Teachers: The Work of Critical Digital Pedagogy.
Jesse is an incredible thoughtful and powerful voice in higher education. His work and writings have influenced so many educators, and we are thrilled to have him on the podcast
Reconciling the Stommel Box Model with the Stommel–Arons Model: A Possible Role for Southern Hemisphere Wind Forcing?
No full textAbstract
In the Stommel box model, the strength of the overturning circulation is parameterized in terms of the density (and hence the pressure) difference between the two boxes. Straub has pointed out that this parameterization is not consistent with the Stommel–Arons model for the abyssal circulation. In particular, the zonally averaged density field implied by the Stommel–Arons model is unrelated to the strength or the direction of the meridional overturning circulation. Here, the inconsistency is examined using the abyssal circulation model of Kawase and a variant to include the effect of Southern Hemisphere wind forcing. The important parameter is R, the ratio of two timescales: the timescale for a perturbation to the density field to propagate, by either wave or advective processes, from a high-latitude source to the equator and the timescale for the dissipation of a perturbation to the density field by diapycnal mixing. If the model is forced only by a deep water source in the northern basin, it is found that the model behaves like the Stommel–Arons model when R ≪ 1 (the “weak” damping regime) and like the Stommel box model when R ≫ 1 (the “strong” damping regine). Estimates of R suggest that coarse-resolution models generally reside in or near the Stommel box model regime (R ≫ 1), which is probably why these models generally support the Stommel box model hypothesis and corroborate the momentum-based closure used in zonally averaged models. On the other hand, it is not clear that the real world is also in the strong damping regime. Indeed, it is easy to obtain estimates for R, using realistic parameter values, that sit in the weak damping regime. It is shown that, even in the weak damping regime (R ≪ 1), adding forcing by the Southern Hemisphere circumpolar westerlies generally moves the model into the Stommel box model regime. It therefore is concluded that, at least in the context of the Kawase model, the inconsistency noted by Straub can be removed by including the effect of Southern Hemisphere wind forcing and that the Stommel box model approach probably has wider applicability than is suggested by estimates of R alone.</jats:p
Sarastro
No full textvon K. Goepfart. (Dichtung von Gottfr. Stommel)Preisangabe auf Titelblatt: Preis Mk. 18. - nettoEnth. Widmungsgedicht an Mozart "Weihe" von Stommel.Titel enth. Ill
Police interviews with child witnesses: a conversation analysis
No full textContains fulltext :
214618.pdf (Publisher’s version ) (Open Access)Radboud University, 15 januari 2020Promotor : Spooren, W.P.M.S. Co-promotor : Stommel, W.J.P.246 p
Non-smooth dynamics in the Stommel model of the thermohaline current
No full textWe analyzed the non-smooth dynamics for the Stommel model for thermohaline circulation with additional mechanisms like slowly varying bifurcation parameters and high frequency oscillatory forcing. Our goal was to find an analytic approximation to the tipping point and forced bifurcation induced by the new features in the model. We first analyze a simpler one component model that has similar structure to the Stommel model and gradually build in more complexity into the one component problem and study the effects on the tipping point.In this context, we compare the relative strengths of the non-smooth effects on the tipping point to the smooth effects which has been previously studied. With the one component model understood, we then apply similar methods to the Stommel model and study thee ffects on the non-smooth tipping points and forced bifurcations. With these results we have the ability to fully describe the hysteresis found in the Stommel model.Science, Faculty ofMathematics, Department ofGraduat
An analogy to the Antarctic Circumpolar Current
No full textIntroduction. In a survey article (Stommel 1957), the Antarctic Circumpolar Current was crudely pictured as a simple convergent poleward geostrophic flow at longitudes far removed from Drake Passage, with a higher order dynamical process through Drake Passage; however, no theoretical model was presented to describe analytically the nature of the flow through Drake Passage...
Henry Stommel. L’oceanografo che svelò i segreti delle correnti atlantiche
No full textL’oceanografo Henry Stommel, di cui ricorreva nel 2020 il centenario della nascita, è unanimemente riconosciuto come il più grande e famoso ricercatore nel settore della fisica degli oceani. Tra le innumerevoli pubblicazioni scientifiche di cui fu autore, le più originali e gravide di conseguenze riguardano le correnti del Nord Atlantico che attualmente rivestono un’importanza fondamentale anche dal punto di vista del cambiamento climatico. Tuttavia, al di là delle pubblicazioni su riviste specialistiche e in lingua inglese, non esiste, nella nostra lingua, un testo storico-scientifico che presenti in maniera dettagliata i risultati di punta ottenuti dallo Stommel. Questo lavoro viene così a colmare una evidente lacuna e può risultare di riferimento sia per lo storico della scienza che per il cultore di scienze marine
Passive Advection in a Stommel Gyre
No full textthis paper we have presented a solution procedure to the passive tracer advection problem in a Stommel Gyre which is independant of the grid and can be computed to machine accuracy. The procedure can be used for any problem where the stream function is fixed in time. A computer program which reads in an arbitrary grid and writes out the solution can be obtained by sending email to [email protected]. Reference
Henry Melson Stommel : from pionner to clasic
No full textStommel has been the most important physicist oceanographer of the second half of the XX century. Builder, to a great extent, of the present Dynamical Oceanography. He contributed to the transformation of the Oceanography from a sort of appendix of the studies of the Atmosphere to a new specialty of Geophysics. After graduating in Astronomy in Yale in 1942 he started his research participating in the WWII effort, collaborating together with many other future oceanographers, in support of the USA Navy. Research that was carried out in the Woods Hole Oceanographic Institution (WHOI). Between 1959 and 1978 he was professor of oceanography in Harvard U. first, and later in the Massachusetts Institute of Technology, returning to WHOI where he stayed until his death. Stommel established important and fundamental theories on the ocean global circulation and studied many other oceanographic phenomena. This theoretical activity he combined with not a less important observational one. He received many awards and hhonors, including the Craadford prize, equivalent to the Nobel in Geosciences
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