Asymmetry of daily temperature records

Yosef Ashkenazy*, Yizhak Feliks, Hezi Gildor, Eli Tziperman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


The authors study the NCEP-NCAR reanalysis temperature records and find that surface daily mean temperature cools rapidly and warms gradually at the midlatitudes (around 40°N and 40°S). This "asymmetry" is partially related to the midlatitude cyclone activity, in which cold fronts are significantly faster and steeper than warm fronts, and to intrusions of cold air. The gradual warming may be attributed also to the radiative relaxation to average atmospheric conditions after the passage of cold fronts or other intrusions of cold air. At the high latitudes there is an opposite asymmetry with rapid warming and gradual cooling; this asymmetry may be attributed to the radiative relaxation to average cold atmospheric conditions after the passage of warm fronts or intrusions of warm air.

Original languageAmerican English
Pages (from-to)3327-3336
Number of pages10
JournalJournals of the Atmospheric Sciences
Issue number10
StatePublished - 2008
Externally publishedYes


Dive into the research topics of 'Asymmetry of daily temperature records'. Together they form a unique fingerprint.

Cite this