Spatial and interannual patterns of winter N-factors near
A 150-km2 area near Barrow, Alaska, was monitored at hourly intervals between 2001 and 2005 using ~70 data loggers recording air and near-surface soil temperature as part of the Barrow Urban Heat Island Study. Data records for the winter period were used to calculate site-specific n-factors, the rat...
Main Authors: | , , |
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Other Authors: | |
Format: | Text |
Language: | English |
Published: |
press
2008
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Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.578.6479 http://www.cas.umt.edu/geography/documents/Hinkel_et_al_NICOP_2008.pdf |
Summary: | A 150-km2 area near Barrow, Alaska, was monitored at hourly intervals between 2001 and 2005 using ~70 data loggers recording air and near-surface soil temperature as part of the Barrow Urban Heat Island Study. Data records for the winter period were used to calculate site-specific n-factors, the ratio between seasonally cumulated degree days at the ground surface to those at standard screen height at corresponding locations. Winter n-factors have similar magnitudes between sites and across years, with typical averages of 0.65-0.70. However, n-factor magnitudes are generally lower and their spatial variability much higher near the urbanized area, owing to heterogeneous snow accumulation and the effects of drifting snow. |
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