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"Moore, G."
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Goodbye horses
\"Catullus (c. 84 - 53 BC) was raised in a leading equestrian family in Verona. At twenty he moved to Rome and fell in with a group of new poets, or neoteroi as Cicero called them, living a hedonistic existence for the better part of a decade. After his brother's death, Catullus' thoughts migrated home, perhaps to help with the family business and make a living to support a wife and family, something he would never achieve before his death at thirty. The pain of his brother's death, coupled with the pain of Lesbia's rejection and her unwillingness to marry him followed him until his final days. In Goodbye Horses, Nathaniel G. Moore reanimates the lion's share of Catullus' surviving poems in an absorbing homage to the beloved romantic, his world, the friends he loved, his style (elegy, anaphora, hyperbaton), the myths he riffed on (Attis, Laodamia and Protesilaus), the writers he admired (Sappho, Cicero) and the family he left behind. The book includes an afterword by the author with insight into Moore's more than twenty years studying, reading, thinking and dreaming with the late Latin bard, how his book differs from others, and why he's spent so many years with this particular dead poet.\"-- Provided by publisher.
BOOK
Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice
The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean multi-year sea ice. The Arctic Ocean is evolving towards an ice pack that is younger, thinner, and more mobile and the fate of its multi-year ice is becoming of increasing interest. Here, we use sea ice motion retrievals from Sentinel-1 imagery to report on the recent behavior of these ice arches and the associated ice fluxes. We show that the duration of arch formation has decreased over the past 20 years, while the ice area and volume fluxes along Nares Strait have both increased. These results suggest that a transition is underway towards a state where the formation of these arches will become atypical with a concomitant increase in the export of multi-year ice accelerating the transition towards a younger and thinner Arctic ice pack.
Ice arches that form along Nares Strait, which separates Greenland and Ellesmere Island, act to reduce the export of thick multi-year ice out of the Arctic. Here, we show that there has been a recent trend towards shorter duration arch formation that has resulted in enhanced transport of ice along the strait.
Journal Article
Sea-ice retreat suggests re-organization of water mass transformation in the Nordic and Barents Seas
Water mass transformation in the Nordic and Barents Seas, triggered by air-sea heat fluxes, is an integral component of the Atlantic Meridional Overturning Circulation (AMOC). These regions are undergoing rapid warming, associated with a retreat in ice cover. Here we present an analysis covering 1950−2020 of the spatiotemporal variability of the air-sea heat fluxes along the region’s boundary currents, where water mass transformation impacts are large. We find there is an increase in the air-sea heat fluxes along these currents that is a function of the currents’ orientation relative to the axis of sea-ice change suggesting enhanced water mass transformation is occurring. Previous work has shown a reduction in heat fluxes in the interior of the Nordic Seas. As a result, a reorganization seems to be underway in where water mass transformation occurs, that needs to be considered when ascertaining how the AMOC will respond to a warming climate.
Water mass transformation in the Nordic and Barents Seas is important for the Atlantic Meridional Overturning Circulation (AMOC). Here, the authors show increases in air-sea heat fluxes linked to sea ice retreat along the boundary currents of the Nordic and Barents Seas that could influence how the AMOC reacts to climate change.
Journal Article
Impact of model resolution on the representation of the wind field along Nares Strait
Nares Strait is a major pathway along which multi-year sea ice leaves the Arctic, an ice class that has seen a recent dramatic reduction in extent. The winds that blow along the strait play an important role in modulating this ice export as well as in establishing the Arctic’s largest and most productive polynya, the North Water, that forms at its southern terminus. However, its remote location has limited our knowledge of the winds along the strait. Here we use automatic weather station data from Hans Island, in the middle of the strait, to assess the ability of a set of atmospheric renalyses and analyses with a common lineage but with varying horizontal resolution to represent the variability in the wind field. We find that the flow is highly bidirectional, consistent with topographic channeling, with the highest wind speeds from the north and that a model resolution of ~ 9 km is required to capture the observed variability. The wind field at Hans Island is also found to be representative of variability in the flow along much of Nares Strait.
Journal Article
Multidecadal Mobility of the North Atlantic Oscillation
The North Atlantic Oscillation (NAO) is one of the most important modes of variability in the global climate system and is characterized by a meridional dipole in the sea level pressure field, with centers of action near Iceland and the Azores. It has a profound influence on the weather, climate, ecosystems, and economies of Europe, Greenland, eastern North America, and North Africa. It has been proposed that around 1980, there was an eastward secular shift in the NAO’s northern center of action that impacted sea ice export through Fram Strait. Independently, it has also been suggested that the location of its southern center of action is tied to the phase of the NAO. Both of these attributes of the NAO have been linked to anthropogenic climate change. Here the authors use both the one-point correlation map technique as well as empirical orthogonal function (EOF) analysis to show that the meridional dipole that is often seen in the sea level pressure field over the North Atlantic is not purely the result of the NAO (as traditionally defined) but rather arises through an interplay among the NAO and two other leading modes of variability in the North Atlantic region: the East Atlantic (EA) and the Scandinavian (SCA) patterns. This interplay has resulted in multidecadal mobility in the two centers of action of the meridional dipole since the late nineteenth century. In particular, an eastward movement of the dipole has occurred during the 1930s to 1950s as well as more recently. This mobility is not seen in the leading EOF of the sea level pressure field in the region.
Journal Article
المنعطف اللغوي : فلسفة الحس المشترك عند جورج إدوارد مور : دراسة مقارنة
يعد نص جورج إدوارد مور الفلسفي أكثر النصوص الفلسفية وضوحا ومباشرة. وهذان، الوضوح والمباشرة، غايتان سعت إلى تحقيقهما فلسفته، والفلسفة التحليلية المعاصرة عموما. فكانت كتابته نفسها تجسيدا لغايات فلسفته. لقد بدا له تاريخ الفلسفة مكتفا بالغموض، ومترعا بمغالطات تصدم، أول ما تصدم، مدارك الناس الاعتياديين واعتقاداتهم. فافترضت فلسفته عقم كل تفكير يناقض البداهة العامة. لذلك جاءت فلسفته، في محيطها الإنجليزي، خروجا بالفلسفة من عنق الزجاجة، الذي حشرتها فيه الفلسفات الهيغلية الحديثة بثوبها الإنجليزي في النصف الثاني من القرن التاسع عشر. كانت فلسفته تريد أن تكون خطوة إلى الأمام، ومراجعة لنوع من الفكر ساد تاريخ الفلسفة، لا سيما الفلسفة الحديثة، جافى المنطق السليم، أو الحس المشترك. لا يقدم نص مور الفلسفي معلومات ومعارف لا نعرفها، فهي تضعنا أمام حقائق، بلغت عنده مستوى البداهة، التي لا يمكن الشك فيها، وعليه فإننا لن نتعلم الكثير من هذا النص إذا كان التعليم يعني تلقيننا معلومات جاهزة، أو اختلاق تهويمات لا أساس واقعي لها، بقدر ما نتعلم كيف نفكر، ومن ثم كيف نسأل. ولهذه المهمة بالذات كرس مور الجزء الأكبر من جهده الفكري، لتكون فلسفته بالدرجة الأولى فلسفة سؤال تبحث عن الوضوح والدقة؛ لأن هذين كفيلان بتمهيد الطريق نحو الجواب الواضح والدقيق.
Book
Irminger Sea deep convection injects oxygen and anthropogenic carbon to the ocean interior
Deep convection in the subpolar North Atlantic ventilates the ocean for atmospheric gases through the formation of deep water masses. Variability in the intensity of deep convection is believed to have caused large variations in North Atlantic anthropogenic carbon storage over the past decades, but observations of the properties during active convection are missing. Here we document the origin, extent and chemical properties of the deepest winter mixed layers directly observed in the Irminger Sea. As a result of the deep convection in winter 2014–2015, driven by large oceanic heat loss, mid-depth oxygen concentrations were replenished and anthropogenic carbon storage rates almost tripled compared with Irminger Sea hydrographic section data in 1997 and 2003. Our observations provide unequivocal evidence that ocean ventilation and anthropogenic carbon uptake take place in the Irminger Sea and that their efficiency can be directly linked to atmospheric forcing.
Journal Article