Handling a Vessel in Ice

1959 ◽  
Vol 12 (2) ◽  
pp. 141-152
Keyword(s):  
United States ◽  
United States Navy ◽  
North Atlantic Ocean ◽  
The United States ◽  
Kind Permission ◽  
American Experience ◽  
The North ◽  
False Sense ◽  
Polar Research Institute ◽  
Ice Field

This paper, prepared by the Hydrographic Office of the United States Navy Department, and based on recent American experience, was originally printed on the back of the April 1958 Pilot Chart of the North Atlantic Ocean. It is reproduced here by kind permission of the Hydrographer of the United States Navy. A less extensive treatment of the subject, to which readers may like to refer, was given by L. R. R. Foster in the Journal in 1952 (‘Some Recent Work on Polar Navigation’, 5, 12). Figs. 1–12 are reproduced from the Polar Record (8, 1956–7) by kind permission of the Scott Polar Research Institute, Cambridge.The first requisite of the embryonic ice pilot is to develop a healthy respect for the tremendous power of the ice. He must never permit the peaceful appearance of an ice-field to lull him into a false sense of security. On the other hand, he need not fear the ice, since a great deal of progress through ice can be made by a vessel in capable hands.

scholarly journals Hurricane Katrina (2005). Part II: Evolution and Hemispheric Impacts of a Diabatically Generated Warm Pool

2007 ◽  
Vol 135 (12) ◽  
pp. 3927-3949 ◽  
Author(s):  
Ron McTaggart-Cowan ◽  
Lance F. Bosart ◽  
John R. Gyakum ◽  
Eyad H. Atallah
Keyword(s):  
United States ◽  
Hurricane Katrina ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Flow Analysis ◽  
Warm Pool ◽  
The United States ◽  
The North ◽  
The North Atlantic ◽  
Upper Level

Abstract The landfall of Hurricane Katrina (2005) near New Orleans, Louisiana, on 29 August 2005 will be remembered as one of the worst natural disasters in the history of the United States. By comparison, the extratropical transition (ET) of the system as it accelerates poleward over the following days is innocuous and the system weakens until its eventual demise off the coast of Greenland. The extent of Katrina’s perturbation of the midlatitude flow would appear to be limited given the lack of reintensification or downstream development during ET. However, the slow progression of a strong upper-tropospheric warm pool across the North Atlantic Ocean in the week following Katrina’s landfall prompts the question of whether even a nonreintensifying ET event can lead to significant modification of the midlatitude flow. Analysis of Hurricane Katrina’s outflow layer after landfall suggests that it does not itself make up the long-lived midlatitude warm pool. However, the interaction between Katrina’s anticyclonic outflow and an approaching baroclinic trough is shown to establish an anomalous southwesterly conduit or “freeway” that injects a preexisting tropospheric warm pool over the southwestern United States into the midlatitudes. This warm pool reduces predictability in medium-range forecasts over the North Atlantic and Europe while simultaneously aiding in the development of Hurricanes Maria and Nate. The origin of the warm pool is shown to be the combination of anticyclonic upper-level features generated by eastern Pacific Hurricane Hilary and the south Asian anticyclone (SAA). The hemispheric nature of the connections involved with the development of the warm pool and its injection into the extratropics has an impact on forecasting, since the predictability issue associated with ET in this case involves far more than the potential reintensification of the transitioning system itself.

scholarly journals La crisis del comando en el cine norteamericano de guerra submarina en los períodos de posguerra: los casos de Run Silent Run Deep (Robert Wise, 1958) y Crimson Tide (Tony Scott, 1995)

2021 ◽  
pp. 45-72
Author(s):  
Francisco Trujillo García-Ramos ◽  
Keyword(s):  
United States ◽  
North American ◽  
United States Navy ◽  
The United States ◽  
Story Line ◽  
The North ◽  
Narrative Process ◽  
Post War ◽  
The Relationship

The command crisis as a story line has been used in many references of the cinema war genre throughout years, but it is in the stories framed under the surface of the sea where it can reach its greatest destabilization capacity. The films of the subgenre suggested to exemplify this study are the North American Run Silent Run Deep (Robert Wise, 1958) and Crimson Tide (Tony Scott, 1995). Both films were produced during a post-war era and narrate the rivalry of a commander and his executive officer in wartime submarines of the United States Navy. Commanding problems severely affect the ecosystem of the ships, creating a struggle for control during patrol. By means of observation, the relationship between History and these films will be analysed, as much as the strategy and narrative process with the objective of verifying keys in the use of the plot.

Flying Boat Construction

1921 ◽  
Vol 25 (128) ◽  
pp. 385-420
Keyword(s):  
United States ◽  
North Sea ◽  
United States Navy ◽  
The United States ◽  
The North ◽  
Boat Building ◽  
The World ◽  
The North Sea ◽  
Naval Architect ◽  
Design And Construction

The design and construction of light hulls and floats suitable for flying boats and seaplanes is a very highly specialised branch of shipbuilding. This being the case, all matters pertaining to same Should be in the hands of naval architects. At a recent lecture before this Society, Commander Hunsaker, of the United States Navy, stated that British aircraft designers followed the naval architect's methods more than in any other country; he thought this was natural as he gave us the credit of being the first maritime power of the world. This may be perfectly true with regard to airships, but I cannot endorse his opinion that the majority of flying boats built in this country show the impress of the trained hand of a naval architect. I do not imply that the American boats are superior to ours, as for instance, a large American boat with twin engines built in the United States, which we used for the North Sea patrol, was by no means typical of good boat-building ; there were no less than four consecutive planks butted—not even scarfed—on the same timber, which had a siding of 5/8in., the line of butts being in line with the step where the boat was naturally weakest.

An Early Traffic Scheme for the English Channel

1979 ◽  
Vol 32 (2) ◽  
pp. 266-271
Author(s):  
Charles H. Cotter
Keyword(s):  
United States ◽  
New York ◽  
North Atlantic ◽  
United States Navy ◽  
The United States ◽  
Separation Scheme ◽  
English Channel ◽  
The North ◽  
High Incidence ◽  
The North Atlantic

The anonymous author of a paper published in the November 1857 issue of The Nautical Magazine, introduced a novel philosophy in relation to the location of lighthouses. At the same time he discussed the proposition for a coastal traffic separation scheme for the English Channel — notorious then, as it still is, for its high incidence of collisions and groundings. The proposal was made just two years after Walter R. Jones of New York made his suggestion to Lieut. M. F. Maury of the United States Navy for an ocean traffic separation scheme which materialized in the form of Maury's ‘steam lanes’ for the North Atlantic.

scholarly journals Natural and Anthropogenic Aerosol Trends from Satellite and Surface Observations and Model Simulations over the North Atlantic Ocean from 2002 to 2012

2016 ◽  
Vol 73 (11) ◽  
pp. 4469-4485 ◽  
Author(s):  
Andrew R. Jongeward ◽  
Zhanqing Li ◽  
Hao He ◽  
Xiaoxiong Xiong
Keyword(s):  
United States ◽  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
The United States ◽  
Transport Processes ◽  
Negative Trend ◽  
Seasonal Trends ◽  
The North ◽  
The North Atlantic

Abstract Aerosols contribute to Earth’s radiative budget both directly and indirectly, and large uncertainties remain in quantifying aerosol effects on climate. Variability in aerosol distribution and properties, as might result from changing emissions and transport processes, must be characterized. In this study, variations in aerosol loading across the eastern seaboard of the United States and the North Atlantic Ocean during 2002 to 2012 are analyzed to examine the impacts of anthropogenic emission control measures using monthly mean data from MODIS, AERONET, and IMPROVE observations and Goddard Chemistry Aerosol Radiation and Transport (GOCART) model simulation. MODIS observes a statistically significant negative trend in aerosol optical depth (AOD) over the midlatitudes (−0.030 decade−1). Correlation analyses with surface AOD from AERONET sites in the upwind region combined with trend analysis from GOCART component AOD confirm that the observed decrease in the midlatitudes is chiefly associated with anthropogenic aerosols that exhibit significant negative trends from the eastern U.S. coast extending over the western North Atlantic. Additional analysis of IMPROVE surface PM2.5 observations demonstrates statistically significant negative trends in the anthropogenic components with decreasing mass concentrations over the eastern United States. Finally, a seasonal analysis of observational datasets is performed. The negative trend seen by MODIS is strongest during spring (MAM) and summer (JJA) months. This is supported by AERONET seasonal trends and is identified from IMPROVE seasonal trends as resulting from ammonium sulfate decreases during these seasons.

Arctic Exploration and International Law

1909 ◽  
Vol 3 (4) ◽  
pp. 928-941
Author(s):  
James Brown Scott
Keyword(s):  
United States ◽  
International Law ◽  
United States Navy ◽  
The United States ◽  
North Pole ◽  
The Arctic ◽  
The North ◽  
Arctic Regions ◽  
Arctic Exploration ◽  
Scientific Achievements

The announcement on September 1, 1909, by Dr. Frederick A. Cook, that he had discovered the north pole on April 21, 1908, and the almost contemporary declaration on September 6th, of Robert A. Peary, of the United States Navy, in command of the Roosevelt, that he had discovered the north pole on April 6, 1909, are, if substantiated, not only international events and scientific achievements of the greatest interest and value, but the culmination of centuries of effort, directed not merely to reach the pole, but to shorten commercial routes by the discovery of a northwestern and northeastern passage, to advance our knowledge of arctic geography and to make known in a disinterested and scientific spirit, the flora, fauna, and the physical configuration of the arctic regions.

Mafias on the Move

2011 ◽  
Author(s):  
Federico Varese
Keyword(s):  
United States ◽  
New York ◽  
Organized Crime ◽  
The United States ◽  
The West ◽  
Market Expansion ◽  
The North ◽  
Economic Transformations ◽  
At Will

Organized crime is spreading like a global virus as mobs take advantage of open borders to establish local franchises at will. That at least is the fear, inspired by stories of Russian mobsters in New York, Chinese triads in London, and Italian mafias throughout the West. As this book explains, the truth is more complicated. The author has spent years researching mafia groups in Italy, Russia, the United States, and China, and argues that mafiosi often find themselves abroad against their will, rather than through a strategic plan to colonize new territories. Once there, they do not always succeed in establishing themselves. The book spells out the conditions that lead to their long-term success, namely sudden market expansion that is neither exploited by local rivals nor blocked by authorities. Ultimately the inability of the state to govern economic transformations gives mafias their opportunity. In a series of matched comparisons, the book charts the attempts of the Calabrese 'Ndrangheta to move to the north of Italy, and shows how the Sicilian mafia expanded to early twentieth-century New York, but failed around the same time to find a niche in Argentina. The book explains why the Russian mafia failed to penetrate Rome but succeeded in Hungary. A pioneering chapter on China examines the challenges that triads from Taiwan and Hong Kong find in branching out to the mainland. This book is both a compelling read and a sober assessment of the risks posed by globalization and immigration for the spread of mafias.

Sign in / Sign up

Export Citation Format

Share Document