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Estimating Snow‐Water Equivalent from Point Density Measurements of Forest Stands
Author(s) -
Golding D. L.,
Harlan R. L.
Publication year - 1972
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1934790
Subject(s) - snow , water equivalent , linear regression , sampling (signal processing) , mathematics , regression analysis , environmental science , point (geometry) , physical geography , atmospheric sciences , statistics , soil science , geography , geometry , geology , meteorology , physics , detector , optics
To define the cumulative influence of adjacent trees on snow accumulation, the Bitterlich point—sampling technique was used with four angle size in the area of relatively homogeneous spruce—fir with similar slope—aspect conditions. Snow—water equivalent at 50 points for 10 measurement dates was correlated with point density. Correlations were higher for that point density determined with angle 147.34 min than for the angles 73.66, 104.18, and 208.38 min. A linear regression model combining weight point—density measurements using three angle sizes gave the highest correlations. There was a trend of increasing correlation from January to April.