21 |
Holocene sea-level changes in the Falkland Islands : new insights into accelerated sea-level rise in the 20th CenturyNewton, Thomas Lee January 2017 (has links)
This thesis investigates sea-level changes in order to test the hypothesis that the main contribution to early 20th century sea-level rise was Northern Hemisphere land-based ice melt. Multiproxy sea-level reconstructions were established for the Falkland Islands, a location where models suggest sea-level rise from Northern Hemisphere ice melt produces the largest signal. The Falklands reconstruction indicated sea levels in the early 20th century accelerated compared to the long-term rate, synchronous with accelerations observed globally. The magnitude of the acceleration in the Falklands reconstruction was greater than Northern Hemisphere rates, consistent with the spatial pattern from a Northern Hemisphere melt source, but likely less than in New Zealand and Australia. It is therefore not possible rule out other contributions to the observed sea-level acceleration. The Falklands reconstruction indicated a rapid sea-level jump around 8.4 ka BP, synchronous with a jump observed in the Northern Hemisphere, which has been attributed to the sudden drainage of Laurentide proglacial lake Agassiz-Ojibway associated with the 8.2 ka BP climatic downturn. A maximum estimate of 0.89 ± 0.22 m for this jump in the Falklands is considerably less than estimates from Northern Hemisphere records. This difference could indicate additional contributions from the Southern Hemisphere are being recorded in the Northern Hemisphere signal. This thesis also focused on developing testate amoebae as sea-level indicators. In the Falklands, testate amoebae transfer functions were able to reconstruct sea level with precision (±0.08 m) comparable to diatoms (±0.07 m). However, preservation issues were indicated in the fossil testate amoebae assemblages which limits their use as tools for sea-level reconstruction. In addition, contemporary distributions of salt-marsh testate amoebae were investigated over one annual cycle. Seasonal variations in the live assemblages were observed to be asynchronous between taxa. Variations in the death assemblages were also observed which were correlated with variations in the live assemblages. This observation suggests the commonly applied assumption in palaeoenvironmental studies that analysing the death population negates temporal bias is invalid. Further research is required to investigate the impact these observed variations have on reconstructive performance.
|
22 |
Britain and the Falkland Islands crisis, 1982 : an analysis of crisis decision-makingFlahault, Michel January 1987 (has links)
No description available.
|
23 |
LA "RELAZIONE SPECIALE" ANGLO-AMERICANA E LA GUERRA DELLA FALKLAND (1982) / The Anglo-American "special relationship" and the Falklands war (1982)BORSANI, DAVIDE 31 March 2015 (has links)
Nell’aprile 1982, l’Argentina – un Paese alleato degli Stati Uniti attraverso il Patto di Rio – invase le isole Falkland, un Territorio d’Oltremare del Regno Unito, rivendicato da Buenos Aires sin dal XIX secolo. Margaret Thatcher, l’allora Primo Ministro britannico, rispose con vigore. Alla fine la Gran Bretagna – alleato NATO degli USA – riuscì a riconquistare le isole e a ristabilire lo status quo ante. Il conflitto va inquadrato nel framework della ‘seconda Guerra Fredda’. Il confronto tra gli Stati Uniti e l’Unione Sovietica fu particolarmente aspro nei primi anni Ottanta e la logica bipolare influenzò le dinamiche diplomatiche della guerra del 1982. Da un lato, l’Emisfero occidentale era al centro della rinnovata strategia americana anti-comunista e l’Argentina era il principale pilastro nel Cono Sud. Dall’altro lato, il rafforzamento della ‘speciale relazione’ anglo-americana costituiva la pietra angolare della grand strategy statunitense nel teatro europeo. Con questo sfondo, è naturale domandarsi quale ruolo Washington scelse di giocare nella guerra delle Falkland tra due dei suoi alleati. A causa di interessi divergenti, la ‘relazione speciale’ non fu infatti del tutto speciale. / In April 1982, Argentina – a country allied with the United States through the Rio Pact – suddenly invaded the Falkland Islands, a long-time Overseas Territory of the United Kingdom, disputed by Buenos Aires since the XIXth century. Margaret Thatcher, the then British Prime Minister, vigorously responded and finally Britain – a US NATO ally – was able to regain the Islands and re-establish the status quo ante. The conflict needs to be contextualized in the ‘second Cold War’ framework. The struggle between the United States and the Soviet Union was particularly tough in the first years of the 1980s and the bipolar logic strongly influenced the diplomatic course of the 1982 war. On the one hand, the Western hemisphere was at the core of the renewed anti-communist US strategy and Argentina was the main pillar in the Southern Cone. On the other hand, the strengthening of the Anglo-American ‘special relationship’ was the European cornerstone of the US grand strategy. Against this background, what kind of role the US chose to play in the Falklands war between two of their allies instinctively arises as the main question. Affected by diverging interests, the ‘special relationship’ was not indeed entirely special.
|
24 |
Logistikprincipers användning vid militär planering : en studie av Falklandkriget 1982 och Gulfkriget 1991 utifrån fem principer för logistikWetterberg, Niclas January 2009 (has links)
Att använda erfarenheter, i form av principer, vid militär planering är inget nytt fenomen. SedanNapoleontiden har det vuxit fram riktlinjer för militär planering och genomförande i form avKrigföringens grundprinciper och principer för att skapa en framgångsrik logistik. Exempel påprinciper och hur de ska tolkas finns i de flesta av världens försvarsmakters doktriner.Syftet med uppsatsen är att ge exempel på hur principer för logistik kan användas för att reflekteraöver de logistiska utmaningar, som en befälhavare eller stabsofficer ställs inför vid en militärplanering.Som empiri, för att värdera principerna mot, har Falklandkriget 1982 och Gulfkriget 1991, med ettbrittiskt/amerikansk perspektiv använts. De är båda konventionella krig med ett tydligt militärtslutmål, men har väldigt olika förutsättningar för logistiken i både en tid-, rum- ochstyrkejämförelse.Uppsatsen använder abduktion som metod. Fem principer för logistik bildar hypoteser förframgång som ställs mot empirin, i form av de två krigen. Krigen ställs mot varandra, medprinciperna som analysverktyg, och komparationens likheter och skillnader gör det möjligt attvärdera och dra slutsatser av principernas innebörd.Resultatet visar att principerna har ett värde och analysen ger vid handen ett flertal slutsatser somkan användas vid militär planering. Principerna ska inte ses som ett krav som måste uppnås för attnå framgång, utan som stöd och riktlinjer för att ta tillvara beprövad erfarenhet. / Using experience, in the form of principles, in military planning is not a new phenomenon. SinceNapoleon there has been development of guidelines for military planning and execution in theform of Principles of War and principles for creating successful logistics. Examples of principlescan be found in most of the world’s defense forces’ doctrines.The overall aim of the thesis is to give examples of how to use principles for logistics to reflecton the logistic challenges you face, as a commander or a staff officer, in military planning.The empirical material used to test the principles against are the Falkland War and the Gulf War,from a British/American perspective. They are both conventional wars with a clear military endstate, but differ a lot in the logistic requirements, both in a time-, space- and forces comparison.The thesis uses the method of abduction. Five principles of logistics make five hypotheses forsuccess that are contrasted with the empirical evidence, in the form of the two wars. The wars arecompared to each other, with the principles as analytic tools, and the similarity and thedifferences in the comparison make it possible to draw conclusions about the principles’ content.The result shows that the principles have value and the analysis gives a number of conclusionsthat can be used in military planning. The principles should not be seen as requirements forsuccess, but rather as a support of, and as guidelines for your planning in order to make use ofprevious experience. / Avdelning: ALB – Slutet Mag. 3 C-upps. Hylla: Upps. ChP 07-09
|
25 |
Center of gravity analysis : an actual or perceived problem?Andersson, Jonas January 2009 (has links)
Centers of Gravity (CoGs) analyses deliver vital input to the operational design. However, there are a great number of theories regarding the phenomenon which can create a certain degree of confusion. The diversity in theories may lead to misdirected mental energy where the focus is to discuss theories instead of using the theories at hand efficiently. The question is if the diversity in theory is an actual problem or if it just perceived as such? This research identifies the similarities and differences in the theories of Milan Vego and Joseph Strange & Richard Iron regarding CoGs, their sub elements and methods for analysis. The impact of the differences on the practical result is then surveyed by implementing the theories on adelimitated phase of the Falklands War, in order to conclude if the differences have a decisive impact on the product of the CoG analysis. The result of this thesis indicates that the diversity in theory is a perceived problem. The identified divergence does not reflect crucially on the CoG analysis and the variation of the input provided to the operational design is minor. The CoGs and the critical vulnerabilities identified are the same or at least similar, no matter which of the two theories was used in this research. / Avdelning: ALB – Slutet Mag. 3 C-upps. Hylla: Upps. ChP 07-09
|
26 |
Iceberg-keel ploughmarks on the seafloor of Antarctic continental shelves and the North Falkland Basin : implications for palaeo-glaciologyWise, Matthew Geoffrey January 2018 (has links)
The use of iceberg-keel ploughmarks as proxy indicators of past and present iceberg morphology, keel depth and drift direction has seldom been approached in the southern hemisphere. Using high-resolution multi-beam swath bathymetry of the mid-shelf Pine Island Trough and outermost Weddell Sea shelf regions of Antarctica, detailed analysis of >13,000 iceberg-keel ploughmarks was undertaken. By considering the draft of icebergs calved from Antarctica today, calculated from detailed satellite altimetric datasets by this work, almost all observed ploughmarks were interpreted to be relict features. In Pine Island Trough, ploughmark planform parameters and cross-sections imply calving of a large number of non-tabular icebergs with v-shaped keels from the palaeo-Pine Island-Thwaites ice stream. Geological evidence of ploughmark form and modern water depth distribution indicates calving-margin thicknesses (949 m) and subaerial ice cliff elevations (102 m) equivalent to the theoretical threshold predicted to trigger ice-cliff structural collapse and calving by marine ice-cliff instability (MICI) processes. Thus, ploughmarks provide the first observational evidence of rapid retreat of the palaeo-Pine Island-Thwaites ice stream, driven by MICI processes commencing ~12.3 cal ka BP. On the Weddell Sea shelf, ploughmark morphologies imply considerable variation in palaeo-iceberg shape and size, most likely reflecting calving from multiple source margins. In turn, an absence of grounded ice on the Weddell Sea shelf and a palaeo-oceanographic regime comparable to today are implied at the time of formation. Analysis of a 3D seismic cube of the Sea Lion Field area of the North Falkland Basin reveals iceberg-keel ploughmarks incised into the modern- and palaeo-seafloor, formed by icebergs of varying shape and size that most-likely calved from the Antarctic Ice Sheet during three past glacial periods (estimated ages ~18 - 26.5 ka BP, ~246 ka BP, ~9.8 Ma BP). Despite illustrating the possibility of iceberg drift into the North Falkland Basin today, the relict ploughmark age implies little risk to any seafloor structures in the area, which might be required for hydrocarbon production. By these analyses, the significance of iceberg-keel ploughmarks as indicators of palaeo-glaciology and palaeo-oceanography at the time of formation is emphasised.
|
27 |
Artillery and warfare 1945-2025Bailey, J. P. A. January 2009 (has links)
For millennia battles were essentially affairs of linear encounter. From the 10th Century to the 20th Century, artillery generally fired directly in the two dimensional plane,limiting potential effects. The development of indirect fire changed this , two-dimensional model. Warfare became not so much a matter of linear encounter as one of engagement as cross and throughout an area; and artillery dominated land operations in both the First and Second World Wars as a result. Firepower was subsequently often applied in even greater weights, but its effects were frequently excessive and high-value targets proved elusive. During the Cold War in Europe,the importance of field artillery wanded relative to other arms. Artillery could only regain its utility by acquiring the highest-value targets and engaging them effectively with the appropriate degree of force in time and space true precision, as opposed to mere accuracy at a point. Improvements in target acquisition and accuracy will enable land systems once more to engage targets effectively throughout the battlespace with implications for warfare analogous to those precipitated by the introduction of indirect fire a century ago. Land operations will become increasingly three-dimensional and Joint. The effects of fire will increasingly be applied in, not merely via, the third dimensions, since targets themselves will increasingly be located, not just on the area of a battlefield, but in the volume of three-dimensional battlespace with values of indetermined by considerations of the fourth dimension, time. Fire, lethal and non-lethal, will also be targeted in other less tangible dimensions such as cyber-space and new types of 'virtual counterfire' will also emerge in the forms of legal and moral restraint. All will be viewed through the lens of perceptions. The burgeoning of firepower from all sources now becomes the spur for changes in the relationship between the land and air components, mindful of those novel factors that will increasingly inhibit the application of that firepower.
|
28 |
Artillery and Warfare 1945-2025Bailey, J P A 24 November 2009 (has links)
For millennia battles were essentially affairs of linear encounter. From the 10th
Century to the 20th Century, artillery generally fired directly in the two dimensional
plane,limiting potential effects. The development of indirect fire changed this ,
two-dimensional model. Warfare became not so much a matter of linear encounter
as one of engagement as cross and throughout an area; and artillery dominated land
operations in both the First and Second World Wars as a result.
Firepower was subsequently often applied in even greater weights, but its effects
were frequently excessive and high-value targets proved elusive. During the Cold
War in Europe,the importance of field artillery wanded relative to other arms.
Artillery could only regain its utility by acquiring the highest-value targets and
engaging them effectively with the appropriate degree of force in time and space true
precision, as opposed to mere accuracy at a point. Improvements in target
acquisition and accuracy will enable land systems once more to engage targets
effectively throughout the battlespace with implications for warfare analogous to
those precipitated by the introduction of indirect fire a century ago.
Land operations will become increasingly three-dimensional and Joint. The effects
of fire will increasingly be applied in, not merely via, the third dimensions, since
targets themselves will increasingly be located, not just on the area of a battlefield,
but in the volume of three-dimensional battlespace with values of indetermined
by considerations of the fourth dimension, time. Fire, lethal and non-lethal, will
also be targeted in other less tangible dimensions such as cyber-space and new
types of 'virtual counterfire' will also emerge in the forms of legal and moral
restraint. All will be viewed through the lens of perceptions.
The burgeoning of firepower from all sources now becomes the spur for changes in the relationship between the land and air components, mindful of those novel factors that will increasingly inhibit the application of that firepower.
|
29 |
Puerto Argentino, inhabited by the pirates and drunkards of the royalty / Puerto Argentino, inhabited by the pirates and drunkards of the royaltyMlynarčík, Štefan January 2019 (has links)
Objectivity and neutrality of current makers of online maps is hampered by the fact that the most important of them who form the public opinion are largely commercial giants. Sensitivity of approaches is desirable especially in specific situations involving territorial disputes. The textual part of the thesis brings theoretical insights to the problematics of map makers policies and their preservation or violation. At the same time is describes critical cartography as a current opposition against governmental and cooperative mapping, of which counter-mapping processes are regularly used in art, too. Practical outcome attempts to reflect specific approaches of map makers depending on particular territorial disputes. It takes place mostly in online environment, using the functions of Google Street View or Google Earth and forms of counter-mapping on the OSM platform. The goal is to bring alternative realities complicating map makers policies and governing apparatus to map projects with the international coverage.
|
30 |
Argentinsko-americké vztahy v období vojenské junty (1976-1983) / Argentine - U.S. Bilateral Relations during military junta (1976 - 1983)Žáčková, Michaela January 2009 (has links)
The topic of this diploma thesis is Argentine - U.S. bilateral relations during the rule of military junta in Argentina from 1976 to 1983. It deals with the most discussed topics such as human rights violations, grain embargo towards USSR, Falkland islands war, cooperation and competition in Central America, nuclear cooperation. It covers period from the fall of government of María Estela Isabel de Perón and the rise of military junta to the resignation of Leopoldo Galtieri and celebration of free elections in 1983 in Argentina. From the USA side it covers periods of the late Ford administration, entire Carter administration and first years of Reagan administration.
|
Page generated in 0.0564 seconds