contributor author | Schmidlin, Thomas W. | |
contributor author | Dethier, Bernard E. | |
contributor author | Eggleston, Keith L. | |
date accessioned | 2017-06-09T14:01:37Z | |
date available | 2017-06-09T14:01:37Z | |
date copyright | 1987/01/01 | |
date issued | 1987 | |
identifier issn | 0733-3021 | |
identifier other | ams-11130.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4146325 | |
description abstract | A freeze-thaw day is defined as a weather observation day with a maximum temperature of 0°C or above and a minimum temperature of ?2.2°C or below recorded in an instrument shelter 1.5 m above the ground. The 30 winter during 1950?80 are examined at 228 stations in nine northeastern states. Average annual freeze-thaw days range from over 90 at high elevations in the north to less than 50 along the Long Island and New Jersey shores and in the Philadelphia area. Freeze-thaw days are most common during midwinter months in the south but peak in March across inland sections. Freeze-thaw days are most numerous with average monthly temperatures between ?2°C and 0°C and approach zero at monthly temperatures below ?13°C and above 11°C. The number of freeze-thaw days with less than 7.5 cm of snow cover is about 95% of the total number along the southern coasts and less than 50% of the total in northern snowy climates. The air at 15 cm height experiences 13% more freeze-thaw days than the air at 150 cm, due to a larger daily temperature range. Hilltops experience fewer freeze-thaw days than valley bottoms. | |
publisher | American Meteorological Society | |
title | Freeze-Thaw Days in the Northeastern United States | |
type | Journal Paper | |
journal volume | 26 | |
journal issue | 1 | |
journal title | Journal of Climate and Applied Meteorology | |
identifier doi | 10.1175/1520-0450(1987)026<0142:FTDITN>2.0.CO;2 | |
journal fristpage | 142 | |
journal lastpage | 155 | |
tree | Journal of Climate and Applied Meteorology:;1987:;Volume( 026 ):;Issue: 001 | |
contenttype | Fulltext | |