搜索结果: 1-15 共查到“海洋科学 land”相关记录30条 . 查询时间(0.145 秒)
Study of Belize Barrier Reef Shows Nitrogen Enrichment from Land-based Sources Doubled in Four Decades：What’s killing coral reefs in Florida is also killing them in Belize
coral reef nitrogen concentration algal blooms ecological system
2021/8/5
Only 17 percent of live coral cover remains on fore-reefs in Belize. A study finds new evidence that nitrogen enrichment from land-based sources like agriculture run-off and sewage, are significantly ...
Mummified baboons reveal likely location of fabled land of Punt, far reach of early Egyptian mariners（图）
Mummified baboons likely location fabled land Punt far reach early Egyptian mariners
2021/1/8
The fabled land of ancient Punt was a major trading partner of Egypt's for at least 1,100 years. Punt was an important source of luxury goods, including incense, gold, leopard skins and living baboons...
Researchers at the Woods Hole Oceanographic Institution and other institutions have found that delta areas worldwide have gained land in the past 30 years, despite river damming. But recent land gains...
Mass extinction of land and sea biodiversity 250 million years ago not simultaneous（图）
Mass extinction land sea biodiversity 250 million years ago simultaneous
2019/12/13
Some 250 million years ago, simultaneous mass extinctions of marine and terrestrial life occurred in an event known as the End-Permian. Or so scientists believed.New research led by Colby College geol...
Lost Continent Of Zealandia:Scientists Return From Expedition To Sunken Land（图）
Lost Continent Zealandia Scientists Expedition Sunken Land
2017/10/24
After a nine-week voyage to study the lost, submerged continent of Zealandia in the South Pacific, a team of 32 scientists from 12 countries has arrived in Hobart, Tasmania, aboard the research vessel...
The densest waters in the world ocean are
formed on the continental shelf areas around
Antarctica by ice formation and by the loss
of heat and water to the air. The Weddell Sea
(e.g., gordon, ...
Land Ice and Sea Level Rise:A Thirty-Year Perspective
Land Ice Sea Level Rise Thirty-Year Perspective
2015/7/9
The present-day assessment of contributions to sea level rise from glaciers and ice sheets depends to a large degree on new technologies that allow efficient and precise detection of change in otherwi...
Changes in the vertical distribution of primary production in response to land-based nitrogen loading
Terrestrial nitrogen load production
2014/10/16
Changes in the vertical distribution of primary production in response to land-based nitrogen loading。
Watershed land use and river engineering drive wetland formation and loss in the Mississippi River birdfoot delta
Watershed land river engineering drive wetland ation loss the Mississippi River birdfoot delta
2014/4/2
The Mississippi River basin was developed for agriculture at an unprecedented scale and intensity within the last 200 yr. These changes favored erosion and sediment transport, which were subsequently ...
Unraveling the role of land use and microbial activity in shaping dissolved organic matter characteristics in stream ecosystems
role of land use microbial activity in shaping dissolved organic matter in stream ecosystems
2014/4/17
Surface water samples were collected from 43 streams distributed throughout watersheds of mixed land use in southern Ontario, Canada. Absorbance and fluorescence spectroscopy with parallel factor anal...
Nutrient inputs to the coastal ocean from submarine groundwater discharge in a groundwater-dominated system: Relation to land use (Kona coast, Hawaii, U.S.A.)
Nutrient inputs the coastal ocean submarine groundwater discharge in a groundwater-dominated system Relation to land use
2014/4/17
We evaluated the magnitude and composition (in terms of salinity,223Ra and224 Ra activity, and nutrient concentrations) of submarine groundwater discharge (SGD) fluxes at 11 sites on the Kona coast of...
Effects of land use, urbanization, and climate variability on coastal eutrophication in the Baltic Sea
land use urbanization climate variability coastal eutrophication in the Baltic Sea
2014/4/17
Sedimentary records of organic matter inputs (stable nitrogen isotopes [d15N], nitrogen [N], and carbon [C] content), phytoplankton abundance (pigments, stable carbon isotopes [d13C]), and community c...
RIPPLE MARKS——THE STORY BEHIND THE STORY Collision Course: Climate Change, Bears, and Humans in the Land of 10,000 Lakes • Russian Roulette: To Catch a Fish-Owl • Polar Bears' Habitat—and Polar Bears—Shrinking • Rain-on-Snow: New Arctic Killer Fingered
Climate change wind water drought
2015/7/6
Dust, winds, and waters. Bears and humans. All swirl together on this late summer afternoon in 2008 in Bear Head Lake State Park, Minnesota. A dry spell has turned dirt roads into arid trackways. Hint...
The Use of Land and Sea Based Wind Data in a Simple Circulation Model
South Atlantic Bight Simple Circulation Model Wind Data
2009/1/19
The use of land based wind data in nearshore oceanographic work is common, but these winds do not accurately reflect coastal oceanic winds. Ocean winds are often underestimated by a factor of 2 and di...
Preliminary studies on physical and chemical processes in the subsurface system in the land reclaimed from the sea
Land reclamation coastal process groundwater flow physiochemical reactions
2009/1/16
Land reclamation has played a significant role in the urban development process in coastal areas in many countries. Over the last 20 years, land reclamation has gained much popularity especially along...