منابع مشابه
Near-Earth Object Surveying in the late 20th Century
Spacewatch has carried out a full-time digital survey of the opposition region since September 1990. 129 Near-Earth asteroids have been discovered through the April 1996 observing run. Other discoveries include an average of about 2000 main-belt asteroids each lunation, 3 new Cenataur asteroids, and 5 comets (including a re-discovery of a long-lost comet). The present reduction methods and capa...
متن کاملFreshening of the Ross Sea during the late 20th century.
Ocean measurements in the Ross Sea over the past four decades, one of the longest records near Antarctica, reveal marked decreases in shelf water salinity and the surface salinity within the Ross Gyre. These changes have been accompanied by atmospheric warming on Ross Island, ocean warming at depths of approximately 300 meters north of the continental shelf, a more negative Southern Oscillation...
متن کاملOceanic forcing of the late 20th century Sahel drought
[1] The Sahel region of Africa underwent a pronounced interdecadal drying trend in the latter half of the 20th century. In order to investigate this drying trend, several ensembles of numerical experiments are conducted using a recently developed atmospheric general circulation model (AM2, developed at NOAA’s Geophysical Fluid Dynamics Laboratory). When the model is forced with the time series ...
متن کاملRobust Sahel drying in response to late 20th century forcings
[1] The African Sahel experienced severe drying between the 1950s and the 1980s, with partial recovery since. We compare Sahel rainfall in the 20th century, pre-industrial, and increased greenhouse gases (GHG) simulations produced for the Intergovernmental Panel on Climate Change (IPCC). The simulations forced by 20th century concentrations of aerosol and GHG reproduce (i) a global change in SS...
متن کاملInto the 20th Century
At the beginning of the 20th century descendants of the early European settlers who first colonized the coasts of Virginia, the Carolinas, and Georgia were established throughout the region. Most all of the native people had been displaced. Cotton was king. The mature forests were being . the southern world, wavered and then toppled. Demand for the South’s cotton declined due to new competition...
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ژورنال
عنوان ژورنال: Journal of Palliative Care
سال: 1991
ISSN: 0825-8597,2369-5293
DOI: 10.1177/082585979100700201