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contributor authorDeGaetano, Arthur T.
contributor authorAllen, Robert J.
contributor authorGallo, Kevin P.
date accessioned2017-06-09T14:29:53Z
date available2017-06-09T14:29:53Z
date copyright2002/09/01
date issued2002
identifier issn0739-0572
identifier otherams-2038.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4156601
description abstractA subset of stations from the daily U.S. Historical Climatology Network (HCN) is used as a basis for a historical database of temperature extreme occurrence in the United States. The dataset focuses on daily temperature occurrences that exceed (fall below) the 90th (10th) percentiles of daily maximum and minimum temperature. Using a variety of techniques, the temperature extreme occurrence data are homogenized to account for nonclimatic shifts resulting from station relocations, changes in instrument type, and variations in the time of observations. Given the daily resolution of the extreme data, these potential sources of inhomogeneity require testing and adjustment using methods other than those conventionally used with mean temperature data. A data estimation technique, specific to extremes, is also used to produce serially complete exceedence records. Stations are also identified based on their current degree of urbanization using satellite observations. The dataset is intended to provide a research-quality source of temperature extreme data, analogous and complementary to the daily HCN dataset. Two analyses are presented that illustrate the influence of adjustment. The change in temperature extreme occurrence with time reverses at between 15% and 20% of the HCN stations depending upon whether adjusted or unadjusted series is used. Changes in the distribution of extreme occurrences during drought and nondrought years are also shown to occur.
publisherAmerican Meteorological Society
titleA Homogenized Historical Temperature Extreme Dataset for the United States
typeJournal Paper
journal volume19
journal issue9
journal titleJournal of Atmospheric and Oceanic Technology
identifier doi10.1175/1520-0426(2002)019<1267:AHHTED>2.0.CO;2
journal fristpage1267
journal lastpage1284
treeJournal of Atmospheric and Oceanic Technology:;2002:;volume( 019 ):;issue: 009
contenttypeFulltext


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