منابع مشابه
Dissolved Organic Matter in Headwater Streams: Compositional Variability across Climatic Regions of North America
Dissolved organic matter (DOM) represents the largest organic matter pool in freshwater systems, but much of it remains molecularly uncharacterized. Although freshwater systems cover only a small area of the earth’s surface, inland waters are an important component of the global carbon cycle. The traditional idea that rivers are simply conduits for refractory carbon delivery to coastal areas is...
متن کاملPaleolimnological records of climatic change in North America
Lacustrine fossil records provide long time series of data on limnological and climatic conditions; these data are useful for establishing natural patterns of climate variability and for generating testable hypotheses about atmospheric circulation and climate-ecosystem linkages. Shoreline features can indicate past lake-level fluctuations that may reflect changes in moisture balance, but often ...
متن کاملBidecadal and Pentadecadal Climatic Oscillations over the North Pacific and North America
Climatic variations on bidecadal (about 20 years) and pentadecadal (50–70 years) timescales are analyzed in terms of their seasonal and regional dependencies in the North Pacific and North American sector. The both bidecadal and pentadecadal variations are evident in SLP fields associated with the strength changes of the Aleutian low. The bidecadal variability is evident only in winter both in ...
متن کاملClimatic and tectonic controls on Jurassic intra-arc basins related to northward drift of North America
Upper Jurassic strike-slip intra-arc basins formed along the axis of earlier Lower to Middle Jurassic extensional intra-arc basins in Arizona. These strike-slip basins developed along the Sawmill Canyon fault zone, which may represent an inboard strand of the Mojave-Sonora megashear system that did not necessarily produce large-scale translations. Subsidence in the Lower to Middle Jurassic exte...
متن کاملDistribution of Nosema Spp. in climatic regions of Iran
Nosemosis is one of the most prevalent bee diseases in the world causing significant economic losses in the global bee-keeping industry. This cross-sectional study was conducted during April-September, 2016 to investigate the prevalence of nosemosis in different climatic regions of Iran. A total of 183 apiaries were selected based on cluster sampling and the climate of apiar...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1927
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493(1927)55<315:tcrona>2.0.co;2