Margo Edwards | |
---|---|
Alma mater | Columbia University |
Scientific career | |
Institutions | University of Hawaii |
Thesis | The morphotectonic fabric of the East Pacific Rise : implications for fault generation and crustal accretion (1992) |
Margo Helen Edwards is a marine geologist known for mapping of the seafloor and hydrothermal vents. She led the 1999 SCICEX and was the first women to live aboard a United States' Navy submarine while doing under-ice research.
Edwards has an undergraduate degree in computer science and geology from Washington University in St. Louis (1985). [1] [ better source needed ] She then received her Ph.D. from Columbia University where she mapped the seafloor along the East Pacific Rise. [2] She joined UH in 1991 as a senior research scientist, [3] served as the director of Hawai'i Mapping Research Group [4] and the director of the U.S. Department of Homeland Security's National Center for Island, Maritime and Extreme Environment Security (CIMES). [5] As of 2021, she is the director of the Applied Research Laboratory. [6] [5]
Edwards served as the chair of the University-National Oceanographic Laboratory System (UNOLS)'s Arctic Icebreaker Coordinating Committee from 2004 until 2007. [7]
Edwards' research centers on the development of high resolution maps, and analysis of photographic and acoustic data. In 1988, while she was at Washington University, Edwards assembled the ETOPO5 5-minute map of land and seafloor elevations. [8] [9] During her graduate work she developed maps of the seafloor in the Pacific Ocean, [10] including the seafloor at the East Pacific Rise, where she detailed its shape and the locations of hydrothermal vents. [11] Edwards led the Hawai'i Mapping Research Group which developed the HAWAII MR1, an instrument that allows high resolution imaging of the seafloor, [12] [13] and was used to map the features of the Sirena Deep, one of the deepest places in the worlds' ocean. [14]
Edwards was the first woman to live aboard a Navy nuclear submarine during under-ice operations. [4] When Edwards received funding to look at the Arctic, women were not permitted to live aboard a submarine while it was at sea. In her 2020 book, Rita Colwell, the former head of the United States' National Science Foundation, described her conversation with Admiral Paul Gaffney about the Navy's concerns but Colwell prevailed. [15] In 1999, during the SCICEX project, Edwards spent thirteen days on the USS Hawkbill where she found evidence of climate change in the Arctic, including thinning sea ice, [16] volcanoes on the seafloor, [17] and warm water moving into the Arctic from the Atlantic Ocean. This research has also expanded the maps of the Arctic's seafloor which allows investigations into understanding of physical processes in the region. [18] [19]
Her work in Hawaii uses time-lapse photographs [20] of military munitions disposed at sea at the end of World War II. [21] [22] Edwards' research informed the discussion on the potential destruction of chemical weapons as she noted the munitions should remain on the seafloor. [23] Edward's group at the University of Hawaii obtained top secret clearance for Navy Research in 2018 because of their projects on data analysis, drone research, waste disposal, renewable energy, and cybersecurity. [6] At the same time, she opens her group to the public by running camps to train people on how to fly personal drones. [24] [25]
In 2007, Edwards received the Distinguished Public Service Award from Admiral Thad Allen when he was the Commandant of the U.S. Coast Guard. [26] She was named Honolulu's scientist of the year in 2009 by the ARCS program (Achievement Rewards for College Scientists). [27] [4]
Seafloor spreading, or seafloor spread, is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
A polynya is an area of open water surrounded by sea ice. It is now used as a geographical term for an area of unfrozen seawater within otherwise contiguous pack ice or fast ice. It is a loanword from the Russian полынья, which refers to a natural ice hole and was adopted in the 19th century by polar explorers to describe navigable portions of the sea.
A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary. The rate of seafloor spreading determines the morphology of the crest of the mid-ocean ridge and its width in an ocean basin.
Litke Deep is an oceanic trench in the Arctic Ocean. The deepest point, also referred to as Litke Deep, is 5,449 m (17,877 ft) below sea level. It is the closest point of the upper surface of Earth's lithosphere to Earth's center, with Challenger Deep being 14.7268 km (9.2 mi) further from Earth's centre at a bathymetric depth of 6,366.4311 km (3,955.9 mi).
The Molloy Deep is a bathymetric feature in the Fram Strait, within the Greenland Sea east of Greenland and about 160 km west of Svalbard. It is the location of the deepest point in the Arctic Ocean. The Molloy Deep, Molloy Hole, Molloy Fracture Zone, and Molloy Ridge were named after Arthur E. Molloy, a U.S. Navy research scientist who worked in the North Atlantic, North Pacific and Arctic Oceans in the 1950s-1970s.
SCICEX, standing for Scientific Ice Expeditions, was a five-year (1995–1999) scientific research program involving a collaboration between the U.S. Navy and academic researchers from a variety of different universities. The object of study was geophysical and oceanological conditions in the Arctic Ocean. The Navy made available a nuclear submarine for each research cruise.
The Nansen Basin is an abyssal plain with water-depths of around 3 km in the Arctic Ocean and part of the Eurasian Basin. It is named after Fridtjof Nansen. The Nansen Basin is bounded by the Gakkel Ridge on the one side and by the Barents Sea continental shelf on the other.
An upper mantle body is a geological region where upper mantle rocks (peridotite) outcrop on the surface of the Earth.
Anna Wåhlin is a Swedish researcher on the Antarctic and the polar seas. She is a professor of physical oceanography at the University of Gothenburg and co-chair of the Southern Ocean Observing System.
Kenneth Craig Macdonald is an American oceanographer and marine geophysicist born in San Francisco, California in 1947. As of 2018 he is professor emeritus at the Department of Earth Science and the Marine Sciences Institute at the University of California, Santa Barbara (UCSB). His work focuses on the tectonics and geophysics of the global mid-oceanic ridge including its spreading centers and transform faults, two of the three types of plate boundaries central to the theory of plate tectonics. His work has taken him to the north and south Atlantic oceans, the north and south Pacific oceans, the Indian Ocean, the Red Sea and the Sea of Cortez, as well as to the deep seafloor on over 50 dives in the research submersible ALVIN. Macdonald has participated in over 40 deep sea expeditions, and was chief- or co-chief scientist on 31 expeditions.
Kathleen (Kathy) Crane is an American marine geologist, best known for her contributions to the discovery of hydrothermal vents on the Galápagos Rift along the East Pacific Rise in the mid-1970s.
The RISE Project (Rivera Submersible Experiments) was a 1979 international marine research project which mapped and investigated seafloor spreading in the Pacific Ocean, at the crest of the East Pacific Rise (EPR) at 21° north latitude. Using a deep sea submersible (ALVIN) to search for hydrothermal activity at depths around 2600 meters, the project discovered a series of vents emitting dark mineral particles at extremely high temperatures which gave rise to the popular name, "black smokers". Biologic communities found at 21° N vents, based on chemosynthesis and similar to those found at the Galapagos spreading center, established that these communities are not unique. Discovery of a deep-sea ecosystem not based on sunlight spurred theories of the origin of life on Earth.
Marine geophysics is the scientific discipline that employs methods of geophysics to study the world's ocean basins and continental margins, particularly the solid earth beneath the ocean. It shares objectives with marine geology, which uses sedimentological, paleontological, and geochemical methods. Marine geophysical data analyses led to the theories of seafloor spreading and plate tectonics.
Marika Holland is a scientist at the National Center for Atmospheric Research known for her work on modeling sea ice and its role in the global climate.
Mathilde Cannat is a French geologist known for her research on the formation of oceanic crust and the tectonic and magmatic changes of mid-ocean ridges.
Rachel Haymon is a marine geologist known for her work linking geological and biological processes occurring at deep-sea hydrothermal vents. In 2005 she was elected a fellow of the Geological Society of America.
Phyllis Jean Stabeno is a physical oceanographer known for her research on the movement of water in polar regions. She has led award-winning research projects in the Arctic and was noted for a distinguished scientific career by the National Oceanic and Atmospheric Administration.
Rebecca Woodgate is a professor at the University of Washington known for her work on ocean circulation in polar regions.
Marta E. Torres is a marine geologist known for her work on the geochemistry of cold seeps and methane hydrates. She is a professor at Oregon State University, and an elected fellow of the Geochemical Society and the Geological Society of America.
The International Bathymetric Chart of the Southern Ocean (IBCSO) is a regional mapping initiative of the General Bathymetric Chart of the Oceans (GEBCO). IBSCO receives support from the Nippon Foundation – GEBCO Seabed 2030 Project.
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