Canada's Arctic Marine Science Policy
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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. -
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. -
Why Do We Use Latitude and Longitude? What Is the Equator?
Where in the World? This lesson teaches the concepts of latitude and longitude with relation to the globe. Grades: 4, 5, 6 Disciplines: Geography, Math Before starting the activity, make sure each student has access to a globe or a world map that contains latitude and longitude lines. Why Do We Use Latitude and Longitude? The Earth is divided into degrees of longitude and latitude which helps us measure location and time using a single standard. When used together, longitude and latitude define a specific location through geographical coordinates. These coordinates are what the Global Position System or GPS uses to provide an accurate locational relay. Longitude and latitude lines measure the distance from the Earth's Equator or central axis - running east to west - and the Prime Meridian in Greenwich, England - running north to south. What Is the Equator? The Equator is an imaginary line that runs around the center of the Earth from east to west. It is perpindicular to the Prime Meridan, the 0 degree line running from north to south that passes through Greenwich, England. There are equal distances from the Equator to the north pole, and also from the Equator to the south pole. The line uniformly divides the northern and southern hemispheres of the planet. Because of how the sun is situated above the Equator - it is primarily overhead - locations close to the Equator generally have high temperatures year round. In addition, they experience close to 12 hours of sunlight a day. Then, during the Autumn and Spring Equinoxes the sun is exactly overhead which results in 12-hour days and 12-hour nights. -
The Mesa Site: Paleoindians Above the Arctic Circle
U. S. Department of the Interior BLM-Alaska Open File Report 86 Bureau of Land Management BLM/AK/ST-03/001+8100+020 April 2003 Alaska State Office 222 West 7th Avenue Anchorage Alaska 99513 The Mesa Site: Paleoindians above the Arctic Circle Michael Kunz, Michael Bever, Constance Adkins Cover Photo View of Mesa from west with Iteriak Creek in foreground. Photo: Dan Gullickson Disclaimer The mention of trade names or commercial products in this report does not constitute endorsement or recommendation for use by the federal government. Authors Michael Kunz is an Archaeologist, Bureau of Land Management (BLM), Northern Field Office, 1150 University Avenue, Fairbanks, Alaska 99709. Michael Bever is a project supervisor for Pacific Legacy Inc., 3081 Alhambra Drive, Suite 208, Cameron Park, CA 95682. Constance Adkins is an Archaeologist, Bureau of Land Management (BLM), Northern Field Office, 1150 University Avenue, Fairbanks, Alaska 99709. Open File Reports Open File Reports issued by the Bureau of Land Management-Alaska present the results of invento- ries or other investigations on a variety of scientific and technical subjects that are made available to the public outside the formal BLM-Alaska technical publication series. These reports can include preliminary or incomplete data and are not published and distributed in quantity. The reports are available while supplies last from BLM External Affairs, 222 West 7th Avenue #13, Anchorage, Alaska 99513 and from the Juneau Minerals Information Center, 100 Savikko Road, Mayflower Island, Douglas, AK 99824, (907) 364-1553. Copies are also available for inspection at the Alaska Resource Library and Information Service (Anchorage), the USDI Resources Library in Washington, D. -
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. -
Educator Guide
E DUCATOR GUIDE This guide, and its contents, are Copyrighted and are the sole Intellectual Property of Science North. E DUCATOR GUIDE The Arctic has always been a place of mystery, myth and fascination. The Inuit and their predecessors adapted and thrived for thousands of years in what is arguably the harshest environment on earth. Today, the Arctic is the focus of intense research. Instead of seeking to conquer the north, scientist pioneers are searching for answers to some troubling questions about the impacts of human activities around the world on this fragile and largely uninhabited frontier. The giant screen film, Wonders of the Arctic, centers on our ongoing mission to explore and come to terms with the Arctic, and the compelling stories of our many forays into this captivating place will be interwoven to create a unifying message about the state of the Arctic today. Underlying all these tales is the crucial role that ice plays in the northern environment and the changes that are quickly overtaking the people and animals who have adapted to this land of ice and snow. This Education Guide to the Wonders of the Arctic film is a tool for educators to explore the many fascinating aspects of the Arctic. This guide provides background information on Arctic geography, wildlife and the ice, descriptions of participatory activities, as well as references and other resources. The guide may be used to prepare the students for the film, as a follow up to the viewing, or to simply stimulate exploration of themes not covered within the film. -
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. -
Arctic Report Card 2018 Effects of Persistent Arctic Warming Continue to Mount
Arctic Report Card 2018 Effects of persistent Arctic warming continue to mount 2018 Headlines 2018 Headlines Video Executive Summary Effects of persistent Arctic warming continue Contacts to mount Vital Signs Surface Air Temperature Continued warming of the Arctic atmosphere Terrestrial Snow Cover and ocean are driving broad change in the Greenland Ice Sheet environmental system in predicted and, also, Sea Ice unexpected ways. New emerging threats Sea Surface Temperature are taking form and highlighting the level of Arctic Ocean Primary uncertainty in the breadth of environmental Productivity change that is to come. Tundra Greenness Other Indicators River Discharge Highlights Lake Ice • Surface air temperatures in the Arctic continued to warm at twice the rate relative to the rest of the globe. Arc- Migratory Tundra Caribou tic air temperatures for the past five years (2014-18) have exceeded all previous records since 1900. and Wild Reindeer • In the terrestrial system, atmospheric warming continued to drive broad, long-term trends in declining Frostbites terrestrial snow cover, melting of theGreenland Ice Sheet and lake ice, increasing summertime Arcticriver discharge, and the expansion and greening of Arctic tundravegetation . Clarity and Clouds • Despite increase of vegetation available for grazing, herd populations of caribou and wild reindeer across the Harmful Algal Blooms in the Arctic tundra have declined by nearly 50% over the last two decades. Arctic • In 2018 Arcticsea ice remained younger, thinner, and covered less area than in the past. The 12 lowest extents in Microplastics in the Marine the satellite record have occurred in the last 12 years. Realms of the Arctic • Pan-Arctic observations suggest a long-term decline in coastal landfast sea ice since measurements began in the Landfast Sea Ice in a 1970s, affecting this important platform for hunting, traveling, and coastal protection for local communities. -
Equator Tropic of Cancer Tropic of Capricorn Arctic Circle An
Please learn where these ‘imaginary’ lines are on a world map: Equator These are all lines of latitude. Tropic of Cancer Tropic of Capricorn Arctic Circle Antarctic Circle Prime Meridian This is a line of longitude. (Sometimes known as the Greenwich Meridian) The Equator is an imaginary line around the centre of the Earth, dividing it into the Northern and Southern Hemispheres. It is a special line of latitude, located halfway between the North and South Poles. The Prime Meridian is the imaginary line that divides Earth into two equal parts: the Eastern Hemisphere and the Western Hemisphere. It is a line of longitude and the starting point for the measuring system called longitude. Hemisphere = half of the Earth Please learn the location of these hemispheres Northern hemisphere and Southern hemisphere which are separated by the Equator Eastern hemisphere and Western hemisphere which are separated by the Prime Meridian The British Isles are positioned within 3 hemispheres: Northern, eastern and western. Denmark, Sweden and Norway are all found in 2 hemispheres: Northern and eastern. LINES OF LATITUDE To find out how far north or south a place is from the horizontal line called the equator, lines of latitude are used. These lines run parallel to the Equator. LINES OF LONGITUDE To find out how far east or west a place is from the vertical line called the Prime Meridian, lines of longitude are used. These lines run vertically from the North Pole to the South Pole. VIKING LINK: Scandinavia includes the countries of Norway, Sweden and Denmark. It is located in Northern Europe. -
Threats to America's Arctic
Photo: Burgess Blevins/Getty Images Walrus Photo: Nick Norman/National Geographic Stock Oil Rig Photo: Ken Graham/AccentAlaska.com Threats to America’s Arctic America’s Arctic, located entirely in Alaska, is one of Ground Zero in a Warming World the most beautiful and forbidding places on earth. Temperatures in the Arctic are rising almost twice Home to indigenous peoples who subsist by hunting as fast as on the rest of the planet, causing water and fishing, the Arctic also supports some of the temperatures to climb and the area of seasonal sea world’s last intact marine ecosystems. Important ice to shrink. Even the most dire predictions of a species—including polar bears, walruses and ice seals, few years ago greatly underestimated the speed at along with bowhead, beluga and gray whales—live which seasonal sea ice has disappeared from the here. Diverse fish and invertebrate populations also Arctic. In 2007, seasonal minimum sea ice coverage thrive in Arctic waters, and the region hosts some in the Arctic was 39 percent lower than the long-term of the largest seabird populations in the world. The average from 1979-2000. The 2008 minimum ice pack Arctic also helps to ventilate the planet: its cold air was somewhat greater in extent, but it was so thin and water circulate atmospheric and ocean currents that it likely established a record low for ice volume. that regulate temperatures worldwide. Scientists now predict the Arctic could be seasonally But this vital area faces unparalleled challenges ice-free by 2030. The retreat of seasonal sea ice has from climate change, seasonal sea ice loss, ocean made hunting and travel more difficult and dangerous acidification and encroaching industrial activities such for Arctic peoples. -
Shipping in the Canadian Arctic Other Possible Climate Change Scenarios
Shipping in the Canadian Arctic Other Possible Climate Change Scenarios K.J. Wilson1, J. Falkingham1, H. Melling2 and R. De Abreu1 1. Canadian Ice Service 2. Fisheries and Oceans, Meteorological Service of Canada Institute of Ocean Sciences Ottawa, Canada Victoria, Canada [email protected] Abstract— In this paper, we will review the results of projected results for the adjusted minimum ice extent in several studies of significance to the question of future September shows five quite different scenarios with the shipping conditions the Canada’s Northwest Passage. As will Canadian model showing the disappearance of summer ice by be shown, these studies raise significant questions around the 2070 and the National Center for Atmospheric Research estimation of the impacts of predicted lighter ice seasons from (NCAR) model ice extent remaining constant [1]. Global Climate Models and introduce further plausible scenarios that should be considered as well when planning The projected decline of sea ice extent and concentrations adaptation strategies for marine transportation in the Canadian by GCM’s has raised many questions about the potential of the Arctic. Northwest Passage (NWP) becoming a viable shipping route. An increase of shipping traffic through the NWP combined Keywords-Sea-ice; Shipping; Northwest Passage; Climate with the ability to finally access and exploit large natural-gas Change reserves within the Canadian Arctic [2] has the potential to cause significant impacts on the Arctic environment and its people. I. INTRODUCTION The five Global Climate Models (GCM’s) adjusted to The NWP is a potential shipping route between Europe and current ice conditions compared in the Arctic Climate Impact Asia that is 9000 km shorter than the Panama Canal route and Assessment (ACIA) project a slight decline in the winter 17,000 km shorter than the Cape Horn route [3].