منابع مشابه
A Test of “Annual Resolution” in Stalagmites Using Tree Rings
So-called annual banding has been identified in a number of speleothems in which the number of bands approximates the time interval between successive U-series dates. The apparent annual resolution of speleothem records, however, remains largely untested. Here we statistically compare variations in band thickness from a late Holocene stalagmite in Carlsbad Cavern, Southern New Mexico, USA, with...
متن کاملCorrelation between maximum latewood density of annual tree rings and NDVI based estimates of forest productivity
In boreal conifers, maximum latewood density (MXD) of annual rings varies in response to warm-season temperatures. Vegetation productivity can be estimated using the Normalized-DiŒerence Vegetation Index (NDVI) calculated from satellite sensor data. Ground measurements related to productivity are required in order to evaluate these estimates. MXD from three boreal sites was compared with estima...
متن کاملSHORT PAPER A Test of “Annual Resolution” in Stalagmites Using Tree Rings
So-called annual banding has been identified in a number of speleothems in which the number of bands approximates the time interval between successive U-series dates. The apparent annual resolution of speleothem records, however, remains largely untested. Here we statistically compare variations in band thickness from a late Holocene stalagmite in Carlsbad Cavern, Southern New Mexico, USA, with...
متن کاملOptimal placement of wavelength converters in trees, tree-connected rings, and tree of rings
In wavelength routed optical networks, wavelength converters can potentially reduce the requirement on the number of wavelengths. A recent study [Proceedings of 9th ACM-SIAM Symposium on Discrete Algorithms (1998)] raised the following problem: choose a minimum number of nodes in a WDM network to place wavelength converters so that any set of paths requires the same number of wavelengths as if ...
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ژورنال
عنوان ژورنال: Monthly Weather Review
سال: 1905
ISSN: 0027-0644,1520-0493
DOI: 10.1175/1520-0493-33.6.250b