The North American Arctic Energizing Regional Collaboration and Governance
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North America Other Continents
Arctic Ocean Europe North Asia America Atlantic Ocean Pacific Ocean Africa Pacific Ocean South Indian America Ocean Oceania Southern Ocean Antarctica LAND & WATER • The surface of the Earth is covered by approximately 71% water and 29% land. • It contains 7 continents and 5 oceans. Land Water EARTH’S HEMISPHERES • The planet Earth can be divided into four different sections or hemispheres. The Equator is an imaginary horizontal line (latitude) that divides the earth into the Northern and Southern hemispheres, while the Prime Meridian is the imaginary vertical line (longitude) that divides the earth into the Eastern and Western hemispheres. • North America, Earth’s 3rd largest continent, includes 23 countries. It contains Bermuda, Canada, Mexico, the United States of America, all Caribbean and Central America countries, as well as Greenland, which is the world’s largest island. North West East LOCATION South • The continent of North America is located in both the Northern and Western hemispheres. It is surrounded by the Arctic Ocean in the north, by the Atlantic Ocean in the east, and by the Pacific Ocean in the west. • It measures 24,256,000 sq. km and takes up a little more than 16% of the land on Earth. North America 16% Other Continents 84% • North America has an approximate population of almost 529 million people, which is about 8% of the World’s total population. 92% 8% North America Other Continents • The Atlantic Ocean is the second largest of Earth’s Oceans. It covers about 15% of the Earth’s total surface area and approximately 21% of its water surface area. -
Papers Published And/Or Accepted for Publication in 2018-2019 (List Incomplete)
Papers published and/or accepted for publication in 2018-2019 (list incomplete) Allington, G. R. H., Fernandez-Gimenez M. E., Chen Belt (ADB). In: (G Gutman, J Chen, GM Henebry, J, and Brown and D G 2018: Combining M Kappas, eds.) Landscape Dynamics across participatory scenario planning and systems Drylands of Greater Central Asia: People, modeling to identify drivers of future sustainability Societies and Ecosystems. Springer. Chapter 10. on the Mongolian Plateau. Ecology and Chen Y, Tao Y, Cheng Y, Ju W, Ye J, Hickler T, Liao Society 23(2):9. C, Feng L and Ruan H 2018: Great uncertainties https://doi.org/10.5751/ES-10034-230209 in modeling grazing impact on carbon An S, Chen X, Zhang XY, Yan D and Henebry GM sequestration: a multi-model inter-comparison in 2018. An exploration of terrain effects on land temperate Eurasian Steppe Environ. Res. surface phenology across the Qinghai-Tibetan Lett. 13 075005 Plateau using Landsat ETM+ and OLI Chen Y, Fei X, Groisman P, Sun Z, Zhang J, and Qin data Remote Sensing 10(7):1069. Z, 2019: Contrasting policy shifts influence the https://doi.org/10.3390/rs10071069 pattern of vegetation production and C Bastos A , Peregon A, Gani ÉA, Khudyaev S, Yue C, sequestration over pasture systems: a regional- Li W, Gouveia CM and Ciais P 2018 Influence of scale comparison in Temperate Eurasian Steppe. high-latitude warming and land-use changes in the Agricultural Systems, Accepted. early 20th century northern Eurasian CO2 sink Deppermann A, Balkovič J, Bundle S-C, di Fulvio F, Environ. Res. -
Recent North Magnetic Pole Acceleration Towards Siberia Caused by flux Lobe Elongation
Recent north magnetic pole acceleration towards Siberia caused by flux lobe elongation Philip W. Livermore,1∗, Christopher C. Finlay 2, Matthew Bayliff 1 1School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, UK, 2DTU Space, Technical University of Denmark, 2800 Kgs. Lyngby, Copenhagen, Denmark ∗To whom correspondence should be addressed; E-mail: [email protected]. Abstract The wandering of Earth’s north magnetic pole, the location where the magnetic field points vertically downwards, has long been a topic of scien- tific fascination. Since the first in-situ measurements in 1831 of its location in the Canadian arctic, the pole has drifted inexorably towards Siberia, ac- celerating between 1990 and 2005 from its historic speed of 0-15 km/yr to its present speed of 50-60 km/yr. In late October 2017 the north magnetic pole crossed the international date line, passing within 390 km of the geo- graphic pole, and is now moving southwards. Here we show that over the last two decades the position of the north magnetic pole has been largely determined by two large-scale lobes of negative magnetic flux on the core- mantle-boundary under Canada and Siberia. Localised modelling shows that elongation of the Canadian lobe, likely caused by an alteration in the pattern of core-flow between 1970 and 1999, significantly weakened its signature on Earth’s surface causing the pole to accelerate towards Siberia. A range of simple models that capture this process indicate that over the next decade arXiv:2010.11033v1 [physics.geo-ph] 21 Oct 2020 the north magnetic pole will continue on its current trajectory travelling a further 390-660 km towards Siberia. -
New Siberian Islands Archipelago)
Detrital zircon ages and provenance of the Upper Paleozoic successions of Kotel’ny Island (New Siberian Islands archipelago) Victoria B. Ershova1,*, Andrei V. Prokopiev2, Andrei K. Khudoley1, Nikolay N. Sobolev3, and Eugeny O. Petrov3 1INSTITUTE OF EARTH SCIENCE, ST. PETERSBURG STATE UNIVERSITY, UNIVERSITETSKAYA NAB. 7/9, ST. PETERSBURG 199034, RUSSIA 2DIAMOND AND PRECIOUS METAL GEOLOGY INSTITUTE, SIBERIAN BRANCH, RUSSIAN ACADEMY OF SCIENCES, LENIN PROSPECT 39, YAKUTSK 677980, RUSSIA 3RUSSIAN GEOLOGICAL RESEARCH INSTITUTE (VSEGEI), SREDNIY PROSPECT 74, ST. PETERSBURG 199106, RUSSIA ABSTRACT Plate-tectonic models for the Paleozoic evolution of the Arctic are numerous and diverse. Our detrital zircon provenance study of Upper Paleozoic sandstones from Kotel’ny Island (New Siberian Island archipelago) provides new data on the provenance of clastic sediments and crustal affinity of the New Siberian Islands. Upper Devonian–Lower Carboniferous deposits yield detrital zircon populations that are consistent with the age of magmatic and metamorphic rocks within the Grenvillian-Sveconorwegian, Timanian, and Caledonian orogenic belts, but not with the Siberian craton. The Kolmogorov-Smirnov test reveals a strong similarity between detrital zircon populations within Devonian–Permian clastics of the New Siberian Islands, Wrangel Island (and possibly Chukotka), and the Severnaya Zemlya Archipelago. These results suggest that the New Siberian Islands, along with Wrangel Island and the Severnaya Zemlya Archipelago, were located along the northern margin of Laurentia-Baltica in the Late Devonian–Mississippian and possibly made up a single tectonic block. Detrital zircon populations from the Permian clastics record a dramatic shift to a Uralian provenance. The data and results presented here provide vital information to aid Paleozoic tectonic reconstructions of the Arctic region prior to opening of the Mesozoic oceanic basins. -
Geography Notes.Pdf
THE GLOBE What is a globe? a small model of the Earth Parts of a globe: equator - the line on the globe halfway between the North Pole and the South Pole poles - the northern-most and southern-most points on the Earth 1. North Pole 2. South Pole hemispheres - half of the earth, divided by the equator (North & South) and the prime meridian (East and West) 1. Northern Hemisphere 2. Southern Hemisphere 3. Eastern Hemisphere 4. Western Hemisphere continents - the largest land areas on Earth 1. North America 2. South America 3. Europe 4. Asia 5. Africa 6. Australia 7. Antarctica oceans - the largest water areas on Earth 1. Atlantic Ocean 2. Pacific Ocean 3. Indian Ocean 4. Arctic Ocean 5. Antarctic Ocean WORLD MAP ** NOTE: Our textbooks call the “Southern Ocean” the “Antarctic Ocean” ** North America The three major countries of North America are: 1. Canada 2. United States 3. Mexico Where Do We Live? We live in the Western & Northern Hemispheres. We live on the continent of North America. The other 2 large countries on this continent are Canada and Mexico. The name of our country is the United States. There are 50 states in it, but when it first became a country, there were only 13 states. The name of our state is New York. Its capital city is Albany. GEOGRAPHY STUDY GUIDE You will need to know: VOCABULARY: equator globe hemisphere continent ocean compass WORLD MAP - be able to label 7 continents and 5 oceans 3 Large Countries of North America 1. United States 2. Canada 3. -
Map and Compass
UE CG 039-089 2018_UE CG 039-089 2018 2018-08-29 9:57 AM Page 56 MAP The north magnetic pole is not the same as the geographic North Pole, also known as AND COMPASS true north, which is the northern end of the axis around which the earth spins. In fact, the north magnetic pole currently lies Background Information approximately 800 mi (1300 km) south of the geographic North Pole, in northern A compass is an instrument that people use Canada. And because the north magnetic to find a direction in relation to the earth as pole migrates at 6.6 mi (10 km) per year, its a whole. The magnetic needle in the location is constantly changing. compass, which is the freely moving needle in the compass that has a red end, points The meridians of longitude on maps and north. More specifically, this needle points globes are based upon the geographic to the north magnetic pole, the northern North Pole rather than the north magnetic end of the earth’s magnetic field, which pole. This means that magnetic north, the can be imagined as lines of magnetism that direction that a compass indicates as north, leave the south magnetic pole, flow north is not the same direction as maps indicate around the earth, and then enter the north for north. Magnetic declination, the magnetic pole. difference in the angle between magnetic north and true north must, therefore, be Any magnetized object, an object with two taken into account when navigating with a oppositely charged ends, such as a magnet map and a compass. -
The Eu and the Arctic
MAGAZINE Dealing the Seal 8 No. 1 Piloting Arctic Passages 14 2016 THE CIRCLE The EU & Indigenous Peoples 20 THE EU AND THE ARCTIC PUBLISHED BY THE WWF GLOBAL ARCTIC PROGRAMME TheCircle0116.indd 1 25.02.2016 10.53 THE CIRCLE 1.2016 THE EU AND THE ARCTIC Contents EDITORIAL Leaving a legacy 3 IN BRIEF 4 ALYSON BAILES What does the EU want, what can it offer? 6 DIANA WALLIS Dealing the seal 8 ROBIN TEVERSON ‘High time’ EU gets observer status: UK 10 ADAM STEPIEN A call for a two-tier EU policy 12 MARIA DELIGIANNI Piloting the Arctic Passages 14 TIMO KOIVUROVA Finland: wearing two hats 16 Greenland – walking the middle path 18 FERNANDO GARCES DE LOS FAYOS The European Parliament & EU Arctic policy 19 CHRISTINA HENRIKSEN The EU and Arctic Indigenous peoples 20 NICOLE BIEBOW A driving force: The EU & polar research 22 THE PICTURE 24 The Circle is published quar- Publisher: Editor in Chief: Clive Tesar, COVER: terly by the WWF Global Arctic WWF Global Arctic Programme [email protected] (Top:) Local on sea ice in Uumman- Programme. Reproduction and 8th floor, 275 Slater St., Ottawa, naq, Greenland. quotation with appropriate credit ON, Canada K1P 5H9. Managing Editor: Becky Rynor, Photo: Lawrence Hislop, www.grida.no are encouraged. Articles by non- Tel: +1 613-232-8706 [email protected] (Bottom:) European Parliament, affiliated sources do not neces- Fax: +1 613-232-4181 Strasbourg, France. sarily reflect the views or policies Design and production: Photo: Diliff, Wikimedia Commonss of WWF. Send change of address Internet: www.panda.org/arctic Film & Form/Ketill Berger, and subscription queries to the [email protected] ABOVE: Sarek glacier, Sarek National address on the right. -
A Newly Discovered Glacial Trough on the East Siberian Continental Margin
Clim. Past Discuss., doi:10.5194/cp-2017-56, 2017 Manuscript under review for journal Clim. Past Discussion started: 20 April 2017 c Author(s) 2017. CC-BY 3.0 License. De Long Trough: A newly discovered glacial trough on the East Siberian Continental Margin Matt O’Regan1,2, Jan Backman1,2, Natalia Barrientos1,2, Thomas M. Cronin3, Laura Gemery3, Nina 2,4 5 2,6 7 1,2,8 9,10 5 Kirchner , Larry A. Mayer , Johan Nilsson , Riko Noormets , Christof Pearce , Igor Semilietov , Christian Stranne1,2,5, Martin Jakobsson1,2. 1 Department of Geological Sciences, Stockholm University, Stockholm, 106 91, Sweden 2 Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden 10 3 US Geological Survey MS926A, Reston, Virginia, 20192, USA 4 Department of Physical Geography (NG), Stockholm University, SE-106 91 Stockholm, Sweden 5 Center for Coastal and Ocean Mapping, University of New Hampshire, New Hampshire 03824, USA 6 Department of Meteorology, Stockholm University, Stockholm, 106 91, Sweden 7 University Centre in Svalbard (UNIS), P O Box 156, N-9171 Longyearbyen, Svalbard 15 8 Department of Geoscience, Aarhus University, Aarhus, 8000, Denmark 9 Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, 690041 Vladivostok, Russia 10 Tomsk National Research Polytechnic University, Tomsk, Russia Correspondence to: Matt O’Regan ([email protected]) 20 Abstract. Ice sheets extending over parts of the East Siberian continental shelf have been proposed during the last glacial period, and during the larger Pleistocene glaciations. The sparse data available over this sector of the Arctic Ocean has left the timing, extent and even existence of these ice sheets largely unresolved. -
Natural Variability of the Arctic Ocean Sea Ice During the Present Interglacial
Natural variability of the Arctic Ocean sea ice during the present interglacial Anne de Vernala,1, Claude Hillaire-Marcela, Cynthia Le Duca, Philippe Robergea, Camille Bricea, Jens Matthiessenb, Robert F. Spielhagenc, and Ruediger Steinb,d aGeotop-Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada; bGeosciences/Marine Geology, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27568 Bremerhaven, Germany; cOcean Circulation and Climate Dynamics Division, GEOMAR Helmholtz Centre for Ocean Research, 24148 Kiel, Germany; and dMARUM Center for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen, 28334 Bremen, Germany Edited by Thomas M. Cronin, U.S. Geological Survey, Reston, VA, and accepted by Editorial Board Member Jean Jouzel August 26, 2020 (received for review May 6, 2020) The impact of the ongoing anthropogenic warming on the Arctic such an extrapolation. Moreover, the past 1,400 y only encom- Ocean sea ice is ascertained and closely monitored. However, its pass a small fraction of the climate variations that occurred long-term fate remains an open question as its natural variability during the Cenozoic (7, 8), even during the present interglacial, on centennial to millennial timescales is not well documented. i.e., the Holocene (9), which began ∼11,700 y ago. To assess Here, we use marine sedimentary records to reconstruct Arctic Arctic sea-ice instabilities further back in time, the analyses of sea-ice fluctuations. Cores collected along the Lomonosov Ridge sedimentary archives is required but represents a challenge (10, that extends across the Arctic Ocean from northern Greenland to 11). Suitable sedimentary sequences with a reliable chronology the Laptev Sea were radiocarbon dated and analyzed for their and biogenic content allowing oceanographical reconstructions micropaleontological and palynological contents, both bearing in- can be recovered from Arctic Ocean shelves, but they rarely formation on the past sea-ice cover. -
Regional Fact Sheet – North and Central America
SIXTH ASSESSMENT REPORT Working Group I – The Physical Science Basis Regional fact sheet – North and Central America Common regional changes • North and Central America (and the Caribbean) are projected to experience climate changes across all regions, with some common changes and others showing distinctive regional patterns that lead to unique combinations of adaptation and risk-management challenges. These shifts in North and Central American climate become more prominent with increasing greenhouse gas emissions and higher global warming levels. • Temperate change (mean and extremes) in observations in most regions is larger than the global mean and is attributed to human influence. Under all future scenarios and global warming levels, temperatures and extreme high temperatures are expected to continue to increase (virtually certain) with larger warming in northern subregions. • Relative sea level rise is projected to increase along most coasts (high confidence), and are associated with increased coastal flooding and erosion (also in observations). Exceptions include regions with strong coastal land uplift along the south coast of Alaska and Hudson Bay. • Ocean acidification (along coasts) and marine heatwaves (intensity and duration) are projected to increase (virtually certain and high confidence, respectively). • Strong declines in glaciers, permafrost, snow cover are observed and will continue in a warming world (high confidence), with the exception of snow in northern Arctic (see overleaf). • Tropical cyclones (with higher precipitation), severe storms, and dust storms are expected to become more extreme (Caribbean, US Gulf Coast, East Coast, Northern and Southern Central America) (medium confidence). Projected changes in seasonal (Dec–Feb, DJF, and Jun–Aug, JJA) mean temperature and precipitation at 1.5°C, 2°C, and 4°C (in rows) global warming relative to 1850–1900. -
Equivalence of Current–Carrying Coils and Magnets; Magnetic Dipoles; - Law of Attraction and Repulsion, Definition of the Ampere
GEOPHYSICS (08/430/0012) THE EARTH'S MAGNETIC FIELD OUTLINE Magnetism Magnetic forces: - equivalence of current–carrying coils and magnets; magnetic dipoles; - law of attraction and repulsion, definition of the ampere. Magnetic fields: - magnetic fields from electrical currents and magnets; magnetic induction B and lines of magnetic induction. The geomagnetic field The magnetic elements: (N, E, V) vector components; declination (azimuth) and inclination (dip). The external field: diurnal variations, ionospheric currents, magnetic storms, sunspot activity. The internal field: the dipole and non–dipole fields, secular variations, the geocentric axial dipole hypothesis, geomagnetic reversals, seabed magnetic anomalies, The dynamo model Reasons against an origin in the crust or mantle and reasons suggesting an origin in the fluid outer core. Magnetohydrodynamic dynamo models: motion and eddy currents in the fluid core, mechanical analogues. Background reading: Fowler §3.1 & 7.9.2, Lowrie §5.2 & 5.4 GEOPHYSICS (08/430/0012) MAGNETIC FORCES Magnetic forces are forces associated with the motion of electric charges, either as electric currents in conductors or, in the case of magnetic materials, as the orbital and spin motions of electrons in atoms. Although the concept of a magnetic pole is sometimes useful, it is diácult to relate precisely to observation; for example, all attempts to find a magnetic monopole have failed, and the model of permanent magnets as magnetic dipoles with north and south poles is not particularly accurate. Consequently moving charges are normally regarded as fundamental in magnetism. Basic observations 1. Permanent magnets A magnet attracts iron and steel, the attraction being most marked close to its ends. -
Chapter 7 Arctic Oceanography; the Path of North Atlantic Deep Water
Chapter 7 Arctic oceanography; the path of North Atlantic Deep Water The importance of the Southern Ocean for the formation of the water masses of the world ocean poses the question whether similar conditions are found in the Arctic. We therefore postpone the discussion of the temperate and tropical oceans again and have a look at the oceanography of the Arctic Seas. It does not take much to realize that the impact of the Arctic region on the circulation and water masses of the World Ocean differs substantially from that of the Southern Ocean. The major reason is found in the topography. The Arctic Seas belong to a class of ocean basins known as mediterranean seas (Dietrich et al., 1980). A mediterranean sea is defined as a part of the world ocean which has only limited communication with the major ocean basins (these being the Pacific, Atlantic, and Indian Oceans) and where the circulation is dominated by thermohaline forcing. What this means is that, in contrast to the dynamics of the major ocean basins where most currents are driven by the wind and modified by thermohaline effects, currents in mediterranean seas are driven by temperature and salinity differences (the salinity effect usually dominates) and modified by wind action. The reason for the dominance of thermohaline forcing is the topography: Mediterranean Seas are separated from the major ocean basins by sills, which limit the exchange of deeper waters. Fig. 7.1. Schematic illustration of the circulation in mediterranean seas; (a) with negative precipitation - evaporation balance, (b) with positive precipitation - evaporation balance.