Next Article in Journal
Recognition of Thermal Hot and Cold Spots in Urban Areas in Support of Mitigation Plans to Counteract Overheating: Application for Athens
Next Article in Special Issue
Different Behaviours of the Ross and Weddell Seas Surface Heat Fluxes in the Period 1972–2015
Previous Article in Journal
Towards the Integrated Study of Urban Climate, Air Pollution, and Public Health
Previous Article in Special Issue
Regions Subject to Rainfall Oscillation in the 5–10 Year Band
Article Menu
Issue 1 (March) cover image

Export Article

Open AccessArticle
Climate 2018, 6(1), 15; https://doi.org/10.3390/cli6010015

Shifting Hardiness Zones: Trends in Annual Minimum Temperature

Department of Civil Engineering and NOAA-CREST, The City College of New York, New York, NY 10031, USA
Received: 28 December 2017 / Revised: 5 March 2018 / Accepted: 6 March 2018 / Published: 9 March 2018
(This article belongs to the Special Issue Decadal Variability and Predictability of Climate)
Full-Text   |   PDF [396 KB, uploaded 9 March 2018]   |  

Abstract

Work published in 2012 revealed that annual minimum temperatures over the coterminous United States (USA) have increased faster than mean temperatures, causing a pronounced poleward shift in the positions of hardiness zones defined by the expected annual minimum temperature. Here, estimates of increases in annual minimum temperatures are updated and extended to other land areas where station temperature records are available. Annual minimum temperatures have increased faster than mean temperatures in seasonally cold regions globally, but have warmed at about the same rate as mean temperatures in tropical climates. The mean increase in annual minimum temperature across the available weather stations was 2.0 °C between 1970 and 2016 (or almost 0.5 °C per decade), as compared to an increase of 1.2 °C in mean temperature. Recent cold winters in regions such as Eastern North America did not clearly break with this trend and were within the range of variability seen in past decades. Overall, annual minimum temperatures appear to be increasing steadily, though with considerable inter-annual variability. View Full-Text
Keywords: surface air temperature; winter; climate change; interannual variability; hardiness surface air temperature; winter; climate change; interannual variability; hardiness
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Krakauer, N.Y. Shifting Hardiness Zones: Trends in Annual Minimum Temperature. Climate 2018, 6, 15.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Climate EISSN 2225-1154 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top