The Arctic Ocean Record
Author: Nansen Arctic Drilling Program NAD Science Committee
Publisher:
Published: 1992
Total Pages: 102
ISBN-13:
DOWNLOAD EBOOK →Author: Nansen Arctic Drilling Program NAD Science Committee
Publisher:
Published: 1992
Total Pages: 102
ISBN-13:
DOWNLOAD EBOOK →Author: Nansen Arctic Ocean Drilling Program. Science Committee
Publisher:
Published: 1999
Total Pages: 102
ISBN-13:
DOWNLOAD EBOOK →Author: Leonard A. LeSchack
Publisher:
Published: 1965
Total Pages: 58
ISBN-13:
DOWNLOAD EBOOK →An experiment to investigate the directional nature and the possible generation mechanisms for waves on the Arctic Ocean, an ocean almost entirely covered with sea ice, is described. The waves under consideration have periods between 10 and 100 seconds and amplitudes between 0.001 and 2.0 centimeters. In the present work an array of two continuously recording gravimeters 1,240 meters apart was established at drift station ARLIS II. Observed waves with distinct periods were associated with a storm over Siberia. A continuously recording microbarograph sensitive to atmospheric micropressure oscillations in the 10- to 100-second period range was also installed at ARLIS II. Distinct oscillations were observed in this period range having amplitude of from 20 to 400 dynes/sq cm. Power spectra of micropressure records made before, during, and after a storm show that oscillation amplitude is proportional to the period of the oscillation and speed of local winds. Cross correlation between the micropressure records and wave records taken with a gravimeter at the same location as the microbarograph shows a positive correlation between the micropressure waves and the ocean waves. This correlation appears to vary with the direction of the local surface wind. These micropressure waves contained sufficient force to bend the ice and generate the observed water waves. (Author).
Author: Mark C. Serreze
Publisher: Princeton University Press
Published: 2020-03-03
Total Pages: 270
ISBN-13: 0691202656
DOWNLOAD EBOOK →"In the 1990s, researchers in the Arctic noticed that floating summer sea ice had begun receding. This was accompanied by shifts in ocean circulation and unexpected changes in weather patterns throughout the world. The Arctic's perennially frozen ground, known as permafrost, was warming, and treeless tundra was being overtaken by shrubs. What was going on? Brave New Arctic is Mark Serreze's riveting firsthand account of how scientists from around the globe came together to find answers"--Publisher's description
Author: Emily Rose Oachs
Publisher: Bellwether Media
Published: 2016-01-01
Total Pages: 24
ISBN-13: 1681031558
DOWNLOAD EBOOK →The Arctic Ocean is the smallest ocean in the world. Located on the North Pole, it touches Asia, Europe, and North America. For many months, the sun does not rise over the Arctic, and when summer arrives, the ice barely melts! Young readers will enjoy finding out more about this unfamiliar ocean and its impact on the world.
Author: United States. Congress. Senate. National Ocean Policy Study
Publisher:
Published: 1991
Total Pages: 120
ISBN-13:
DOWNLOAD EBOOK →Author: Frank D. Carsey
Publisher: American Geophysical Union
Published: 1992-04-08
Total Pages: 466
ISBN-13: 087590033X
DOWNLOAD EBOOK →Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 68. Human activities in the polar regions have undergone incredible changes in this century. Among these changes is the revolution that satellites have brought about in obtaining information concerning polar geophysical processes. Satellites have flown for about three decades, and the polar regions have been the subject of their routine surveillance for more than half that time. Our observations of polar regions have evolved from happenstance ship sightings and isolated harbor icing records to routine global records obtained by those satellites. Thanks to such abundant data, we now know a great deal about the ice-covered seas, which constitute about 10% of the Earth's surface. This explosion of information about sea ice has fascinated scientists for some 20 years. We are now at a point of transition in sea ice studies; we are concerned less about ice itself and more about its role in the climate system. This change in emphasis has been the prime stimulus for this book.
Author: Yvonne Herman
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 887
ISBN-13: 1461306779
DOWNLOAD EBOOK →The Arctic region has long held a fascination for explorers and scientists of many countries. Despite the numerous voyages of exploration, the na ture of the central Arctic was unknown only 90 years ago; it was believed to be a shallow sea dotted with islands. During Nansen's historic voyage on the polarship Fram, which commenced in 1893, the great depth of the central basin was discovered. In the Soviet Union, investigation of the Arctic Ocean became national policy after 1917. Today research at several scientific institutions there is devoted primarily to the study of the North Polar Ocean and seas. The systematic exploration of the Arctic by the United States com menced in 1951. Research has been conducted year-round from drifting ice islands, which are tabular fragments of glacier ice that break away from ice shelves. Most frequently, ice islands originate off the northern coast of Ellesmere Island. These research platforms are occupied as weather sta tions, as well as for oceanographic and geophysical studies. Several inter national projects, conducted by Canadian, European, and U. S. groups, have been underway during the last three decades. Although much new data have accumulated since the publication of the Marine Geology and Oceanography of the Arctic Seas volume in 1974 (Yvonne Herman, ed. ), in various fields of polar research-including present-day ice cover, hydrogra phy, fauna, flora, and geology-many questions remain to be answered.