scholarly journals A Two-Dimensional Study of Block Onset Locations Using a One-Dimensional Index and GIS

2021 ◽  
Vol 8 (1) ◽  
pp. 47
Author(s):  
Samuel Mount ◽  
Bahtiyar Efe ◽  
Anthony R. Lupo
Keyword(s):  
Information System ◽  
Active Regions ◽  
Two Dimensional ◽  
University Of Missouri ◽  
One Dimensional ◽  
Visualization Software ◽  
The Pacific ◽  
Ocean Region ◽  
The Pacific Ocean ◽  
The University

Previous climatologies of blocking from this group using a one-dimensional index showed that in the Northern Hemisphere, blocking onsets primarily occurred in the Pacific Ocean region, the eastern Atlantic, and over continental Asia. In the Southern Hemisphere, the western and eastern Pacific are the two active regions for block onset. The development of technologies such as Geographic Information System (GIS) visualization software mean that ingesting data and then rendering it on a map has become easier and faster. This research group has previously not archived the latitude of onset, making a comparison of onset locations with 2-D indexes difficult. Now, the onset latitude is provided on the University of Missouri Blocking Archive. This work shows that the blocking onset regions are roughly consistent with those found by 2-D indexes, but there are some key differences based on the differences in the information presented. Here, block onset locations are slightly equatorward and upstream of those presented in 2-D indexes. Additionally, there are some differences in the onset locations for more persistent blocks and stronger blocks versus their less persistent and weaker counterparts.

scholarly journals Large-Volume WOCE Radiocarbon Sampling in the Pacific Ocean

Radiocarbon ◽  
1996 ◽  
Vol 38 (3) ◽  
pp. 519-561 ◽  
Author(s):  
Minze Stuiver ◽  
H. G. Östlund ◽  
Robert M. Key ◽  
Paula J. Reimer
Keyword(s):  
Pacific Ocean ◽  
Large Volume ◽  
University Of Washington ◽  
Data Set ◽  
Comprehensive Data ◽  
The Pacific ◽  
The Pacific Ocean ◽  
University Of Miami ◽  
The University

At the University of Miami Tritium Laboratory and the University of Washington Quaternary Isotope Laboratory, more than 1000 large-volume Pacific Ocean radiocarbon samples were measured for the WOCE program. Here we present a comprehensive data set, and a brief discussion of our findings.

scholarly journals NUMERICAL SIMULATION OF 1964 TSUNAMI ACROSS THE PACIFIC OCEAN

1986 ◽  
Vol 1 (20) ◽  
pp. 5
Author(s):  
Michael H. Chen
Keyword(s):  
Numerical Simulation ◽  
Boundary Condition ◽  
Numerical Model ◽  
Pacific Ocean ◽  
Arrival Time ◽  
Two Dimensional ◽  
Open Sea ◽  
The Pacific ◽  
The Pacific Ocean

A two dimensional numerical longwave model using an appropriate open sea boundary condition has been developed. The use of the open-sea boundary condition makes it possible to simulate longwave propagation using a smaller region without covering the entire ocean. The numerical model is used to predict the arrival time of tsunamis resulting from the 1964 Alaskan earthquake at various stations with reasonable success.

The Graphical Records of Matthew Flinders's Voyage to Terra Australis

1984 ◽  
Vol 37 (1) ◽  
pp. 94-103 ◽  
Author(s):  
A. N. Ferrar
Keyword(s):  
Indian Ocean ◽  
Memorial Lecture ◽  
South East Asia ◽  
Cape Of Good Hope ◽  
The Pacific ◽  
Marco Polo ◽  
The Indian Ocean ◽  
The Pacific Ocean ◽  
The University ◽  
Sailing Ship

This second Matthew Flinders Memorial Lecture, in a series sponsored jointly by the Royal Institute of Navigation and the Hydrographic Society with the cooperation of Lincolnshire and Humberside Arts was presented at the University of Hull on 11 May 1983 with Sir John Dudding, Chairman of Lincolnshire and Humberside Arts in the Chair. The first lecture, presented by Rear-Admiral G. S. Ritchie in April 1974 (Journal27, 3) on the bicentenary of the birth of Matthew Flinders, described the hydrographic work of this exploring navigator. Miss Ferrar concentrates on the graphical records of Flinders's Australian voyages.When Marco Polo made his journey to China, overland from Venice in the thirteenth century, the lands around the Pacific Ocean were wholly unknown to Europeans. But the silks and spices with which he returned sowed the seeds of the quest for a sea route to the ‘Spice Islands’ which was to be one of the mainsprings of exploration for nearly 500 years. The Spaniards crossed the Atlantic. But instead of finding themselves on the coast of Asia as they had expected they discovered the lands (and the wealth) of the Aztecs and Incas, and their explorations extended along the Pacific coasts of Central and South America from Mexico to Peru. The Portuguese found their way around southern Africa and across the Indian Ocean to South-east Asia, where they attained their objective and established a lucrative trade with the Spice Islands. Sailing ship routes depend upon the direction of prevailing winds, so the outward voyage took them eastwards from the Cape of Good Hope and then northwards to their destination. The homeward crossing of the Indian Ocean was in more northerly latitudes.

scholarly journals Th e Relationship Between Fish Length and Otolith Size and Weight of the Australian Ancnovy, En-graulis australis (Clupeiformes, Engraulidae), Retrieved from the Food of the Australasian Gannet, Morus serrator (Suliformes, Sulidae), Hauraki Gulf, New Zealand

Zoodiversity ◽  
2021 ◽  
Vol 55 (4) ◽  
pp. 331-338
Author(s):  
L. A. Jawad ◽  
N. J. Adams
Keyword(s):  
New Zealand ◽  
Fish Length ◽  
Linear Regression Models ◽  
The Pacific ◽  
Ocean Region ◽  
Length Width ◽  
The Pacific Ocean ◽  
Relationship Of ◽  
Morus Serrator ◽  
Otolith Size

Relationships between fish length and otolith length, width and mass were examined in the Australian anchovy Engraulis australis (White, 1790) recovered from the food of Gannet examined from colonies at islands of Horuhoru Rock and Mahuki Islands in the Hauraki Gulf, New Zealand. The relationships between otolith length- fish total length (TL), otolith-weight-TL, and otolith-width-TL were investigated by means of non-linear regression models (TL = 0.54 OL 16.86, TL = 4.39 OW 7.61 and TL = 26.19 OWe 2.2). This study characterizes the first reference available on the relationship of fish size and otolith size and weight for E. australis obtained from bird’s food in the Pacific Ocean region

scholarly journals Envisioning an Interconnected Ocean: Understanding the Links Between Geological Ocean Structure and Coastal Communities in the Pacific

2021 ◽  
Vol 55 (3) ◽  
pp. 68-69
Author(s):  
Megan Lubetkin ◽  
Nicole Raineault ◽  
Sarah Gaines
Keyword(s):  
Pacific Islands ◽  
Structural Features ◽  
Local Communities ◽  
Seafloor Mapping ◽  
Marine Management ◽  
Ocean Science ◽  
Ocean Exploration ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The University

Abstract Covering nearly one third of the Earth's surface, the Pacific Ocean contains many significant interconnected geologic features extending into the coastal zone and the islands themselves. Trenches, ridges, seamount chains, faults, and fracture zones are not only fundamental expressions of Earth processes but also fundamental to life. Without awareness of these features and their natural and cultural importance, marine management and global understanding will remain disjointed. The Ocean Exploration Trust (OET) will spend the next several years in the Pacific conducting scientific expeditions to better understand the ocean through seafloor mapping and ocean exploration. Western ocean science is one of many ways to perceive and value the structural features of the Pacific. Communities across Pacific islands—often volcanic peaks emerging from deep below—are interconnected by water and by the underlying seafloor. We acknowledge the knowledge from local communities and recognize the multitude of ways to conceptualize and relate to the Pacific. With the University of Rhode Island's Coastal Resources Center (CRC), OET seeks to collaborate with local communities to reveal the structural significance and interconnected nature of oceanic features, making a link to the livelihoods of Pacific islanders. Further objectives would be co-designed with partners from local communities.

Umzug einer Galapagos-Riesenschildkröte aus dem Zoologischen Garten in die Zoologische Sammlung

2021 ◽  
Vol 58 ◽  
pp. 77-87
Author(s):  
Antje Angeli ◽  
Jürgen Fiebig XXXMLAUTOR Andreas Bick
Keyword(s):  
Polyethylene Glycol ◽  
Egg Laying ◽  
Zoological Garden ◽  
Hohes Alter ◽  
Sparse Vegetation ◽  
Galapagos Archipelago ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Very Old Age ◽  
The University

Galápagos-Riesenschildkröten sind ausschließlich auf dem Galápagos-Archipel im Pazifischen Ozean zu finden. Dort leben sie sowohl in regennassen Regionen als auch in Gebieten mit spärlicher Vegetation. Sie sind tagaktiv und wandern vom Hochland zu ihren Eiablageplätzen in wärmeren Küstengebieten. Sie können ein sehr hohes Alter erreichen, in der Regel werden sie 50–80 Jahre alt. Im Jahr 2020 verzeichnete das Europäische Zuchtbuch für Galápagos-Riesenschildkröten 108 Tiere in 23 Zoos und Einrichtungen. In Europa wird diese Art in 12 Zoos gezeigt, darunter in Rostock und Hoyerswerda. Im Jahr 2012 wurden im Rostocker Zoo fünf Tiere gehalten, die alle aus dem Zoo Zürich kamen. Im Juni 2019 wurde eine der fünf Schildkröten, Elvida, tot in ihrem Gehege aufgefunden. Elvida wurde zur Sektion an das Leibniz-Institut für Zoo- und Wildtierforschung in Berlin übergeben. Danach wurde sie im Museum für Naturkunde Berlin präpariert. Die Präparation erfolgte mit einem Imprägnierverfahren, bei dem das Wasser der Zellen durch Polyethylenglykol (PEG) ersetzt wird. Seit Dezember 2020 ist das Exponat der Galápagos-Riesenschildkröte Elvida Teil der Zoologischen Sammlung der Universität Rostock, wo es den Studierenden für Lehrzwecke zur Verfügung steht und Teil der Ausstellung ist. Relocation of a Galapagos giant tortoise from the Zoological Garden to the Zoological Collection Abstract: Galápagos giant tortoises are found exclusively on the Galápagos archipelago in the Pacific Ocean. There they live both in rain-wet regions and in areas with sparse vegetation. They are diurnal and migrate from the highlands to their egg-laying sites in warmer coastal areas. They can reach a very old age, usually they live 50–80 years. In 2020, the European Studbook for Galápagos giant tortoises listed 108 animals in 23 zoos and institutions. In Europe, this species is kept in 12 zoos, including Rostock and Hoyerswerda. Five individuals were kept at Rostock Zoo in 2012, all of which came from Zurich Zoo. In June 2019, one of the five tortoises, Elvida, was found dead in her enclosure. Elvida was handed over to the Leibniz Institute for Zoo and Wildlife Research in Berlin for dissection. After finishing the dissection, it was prepared at the Museum für Naturkunde Berlin. The preparation was carried out with an impregnation procedure in which the water of the cells is replaced by polyethylene glycol (PEG). Since December 2020, the exhibit of the Galápagos giant tortoise Elvida has been part of the Zoological Collection of the University of Rostock, where it is available to students for teaching purposes and is part of the exhibition.

One-Dimensional Sans Employing Bent-Single Crystal Optics: Theory and Demonstration

1994 ◽  
Vol 376 ◽  
Author(s):  
B. J. Heuser ◽  
M. Popovici ◽  
R. Berliner
Keyword(s):  
Incident Neutron ◽  
University Of Missouri ◽  
Rocking Curve ◽  
One Dimensional ◽  
Analyzer Crystal ◽  
Intensity Measurements ◽  
Neutron Wavelength ◽  
Integrated Intensities ◽  
The University ◽  
Bent Crystals

ABSTRACTA recent small-angle neutron scattering (SANS) instrumentation development at the University of Missouri Research Reactor Center (MURR) using bent, double Si crystal diffraction is presented. Neutron rocking curves of flat single crystals are only a few seconds of arc with correspondingly low integrated intensities. The rocking curve can be significantly broadened if the crystals are bent. However, the phase-space acceptance and emergence windows of two bent crystals in parallel can be matched only if the reflecting planes have different d-spacing. We have used a combination of the Si (111) and (220) reflections in the work presented here. The peak intensity of the rocking curve with this configuration was approximately 2.5 x 105 neutrons per second over a 5 cm2 area of sample at 1.5 Å. The rocking curve wings fell sharply (approximately as Q"11), permitting accurate scattered intensity measurements down to a minimum Q value of 0.005 1/Å at a Q resolution of 0.003 1/Å. The technique also offers the possibility of variable resolution without too much difficulty; changes up to a factor of 2 can be made by adjusting the sample-to-analyzer crystal distance, while changes of a factor of 10 can be made by using different Si reflections. Since the incident neutron wavelength can be tuned to the peak of the leakage spectrum, this technique is ideal for low-flux reactors, which otherwise cannot be used for SANS research. The usefulness of one-dimensional SANS is demonstrated by measurements of Portland cement.

scholarly journals The Politics of Repair in a Postcolonial Context: A Minor Case Study

2018 ◽  
Author(s):  
Cathi Ho Schar ◽  
◽  
Daniel S. Friedman ◽  
Keyword(s):  
Public Space ◽  
Single Case ◽  
Low Cost ◽  
The Pacific ◽  
Deferred Maintenance ◽  
The Pacific Ocean ◽  
University Of Hawai'i ◽  
A Minor ◽  
The University

The University of Hawai‘i at Mānoa is the flagship campus for the country’s most remote and westernmost state. It lies over two thousand nautical miles from the nearest continent, roughly in the center of the Pacific Ocean, the largest division of the world hydrosphere. Until 1893, Hawai’i was a sovereign kingdom. In 1959, the U.S. government annexed Hawaiʻi as the last and newest of its fifty states. This vivid context—Pacific, Asian, Hawaiian, American, postcolonial—constitutes both a geographical and cultural orientation. In view of these numerous, vivid conditions, our paper offers a single case study based on small projects underway at Mānoa, where the senior leadership of the university invited the newly established University of Hawai‘i Community Design Center to address the chronic disrepair of campus buildings and public spaces through low-cost, high-impact design interventions. The aim of these interventions is to improve perceived qualities of public space and campus character, which have suffered under the weight of the university’s half-billion dollar deferred maintenance backlog.

scholarly journals Variability of Monthly Radiocarbon During the 1760S in Corals from the Galapagos Islands

Radiocarbon ◽  
2004 ◽  
Vol 46 (2) ◽  
pp. 627-631 ◽  
Author(s):  
Ellen R M Druffel ◽  
Sheila Griffin ◽  
Jeomshik Hwang ◽  
Tomoko Komada ◽  
Steven R Beaupre ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Spectral Analysis ◽  
Galapagos Islands ◽  
University Of California ◽  
Data Sets ◽  
Galápagos Islands ◽  
The Pacific ◽  
The Pacific Ocean ◽  
C Value ◽  
The University

Radiocarbon (Δ14C) measurements of monthly samples from a Galapagos surface coral are among the first data sets from the new Keck Carbon Cycle Accelerator Mass Spectrometry laboratory at the University of California, Irvine. An average Δ14C value of −62 is obtained for 144 measurements of samples from monthly coral bands that lived from about AD 1760–1771 (±6 yr). High Δ14C values were found during January through March, when upwelling was weak or absent at the Galapagos Islands. Low Δ14C values were obtained mid-year during strong upwelling. The average seasonal variability of Δ14C was 15–25, which is greater than that at other tropical and subtropical locations in the Pacific Ocean because of intense seasonal upwelling at this site. Periods of sustained high Δ14C values were found during 1762–1763 and 1766. A spectral analysis revealed that the spectral density for the Δ14C data displays most of its variance at the 5-yr cycle, which is reflective of El Niño periodicity during the 20th century.

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