Closing the Gap: Exploration and Mapping of the Alaskan Arctic Coast

2015 ◽  
Vol 58 (4) ◽  
pp. 163-172
Author(s):  
Molly McGraw ◽  
H. Jesse Walker
Keyword(s):  
Arctic Coast ◽  
Closing The Gap ◽  
Alaskan Arctic

Offshore Bars along the Alaskan Arctic Coast

1975 ◽  
Vol 83 (2) ◽  
pp. 209-221 ◽  
Author(s):  
A. D. Short
Keyword(s):  
Arctic Coast ◽  
Alaskan Arctic

Height and growth rings of Salix lanata ssp. richardsonii along the coastal temperature gradient of northern Alaska

1987 ◽  
Vol 65 (5) ◽  
pp. 988-993 ◽  
Author(s):  
D. A. Walker
Keyword(s):  
Temperature Gradient ◽  
Growth Ring ◽  
Maximum Height ◽  
Strong Correlations ◽  
Growth Rings ◽  
Arctic Coast ◽  
The Mean ◽  
Alaskan Arctic ◽  
Highly Correlated ◽  
Northern Alaska

Salix lanata ssp. richardsonii from open-tundra and streamside populations were studied at seven sites along a 100-km north–south transect following the Sagavanirktok River from the Alaskan arctic coast to the foothills of the Brooks Range. Mean July temperatures along this transect vary from 2.6 at the coast to 10 °C at the base of the foothills. Mean maximum heights of the sampled open-tundra willows increased from 10 ± 2 at the coast to 37 ± 8 cm at the southern end of the transect. Mean maximum heights of sampled streamside willows increased from 0 at the coast to 147 ± 25 cm. The mean maximum height of willows in both habitats showed very strong correlations with thawing degree-days. Mean growth-ring widths increased from 92 ± 20 at the coast to 188 ± 57 μm at the southern end of the transect and were also highly correlated with the temperature gradient. The results are discussed in light of other arctic studies of willow growth rings and Cantlon's system of vegetation subdivisions within the Alaskan arctic.

Trace Elements in Sea Ducks of the Alaskan Arctic Coast: Patterns of Variation Among Species, Sexes, and Ages

2016 ◽  
Vol 71 (3) ◽  
pp. 297-312 ◽  
Author(s):  
Micah W. C. Miller ◽  
James R. Lovvorn ◽  
Angela C. Matz ◽  
Robert J. Taylor ◽  
Christopher J. Latty ◽  
...  
Keyword(s):  
Trace Elements ◽  
Sea Ducks ◽  
Arctic Coast ◽  
Alaskan Arctic

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

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