Influence of the MJO on daily surface air temperature over Iran
journal contribution
posted on 2023-05-20, 22:02 authored by Pourasghar, F, Oliver, ECJ, Neil HolbrookNeil HolbrookThe influence of the Madden‐Julian Oscillation (MJO) on surface air temperature over Iran is examined using daily data from meteorological stations from 1979–2015. Composites of daily surface air temperature anomalies are positive in MJO phases 1 and 8 and negative in MJO phases 3–4 with broader region positive tendencies also in MJO phases 2 and 7, and negative tendencies in MJO phases 5–6. This variability is associated with horizontal temperature advection, whereby the southerly (northward) winds act to heat and the northerly (southward) winds cool Iran, in association with the MJO. Further, we find that daily minimum surface air temperatures respond more strongly to the MJO than do daily maximum surface temperatures. These signals correspond to cloudy and humid conditions.
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Publication title
International Journal of ClimatologyVolume
41Issue
9Pagination
4562-4573ISSN
0899-8418Department/School
Institute for Marine and Antarctic StudiesPublisher
John Wiley & Sons LtdPlace of publication
The Atrium, Southern Gate, Chichester, England, W Sussex, Po19 8SqRights statement
Copyright 2021 Royal Meteorological Society. This is the peer reviewed version which has been published in final form at https://doi.org/10.1002/joc.7086 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.Socio-economic Objectives
Climatological hazards (e.g. extreme temperatures, drought and wildfires)Repository Status
- Restricted
