Northern hemisphere surface air temperature variations: 1851–1984

Jones, PD ORCID: https://orcid.org/0000-0001-5032-5493, Raper, SCB, Bradley, RS, Diaz, HF, Kelly, PM and Wigley, TML (1986) Northern hemisphere surface air temperature variations: 1851–1984. Journal of Climate and Applied Meteorology, 25 (2). pp. 161-179. ISSN 0733-3021

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Abstract

A new compilation of monthly mean surface air temperature for the Northern Hemisphere for 1851-1984 is presented based on land-based meteorological station data and fixed-position weather ship data. Only reliable or corrected station data have been used in calculating area averages. Grid point temperature estimates have been made by interpolating onto a 5o latitude by 10o longitude grid for each month of the 134 years. In the period of best data coverage, 58% of the area of the Northern Hemisphere is covered by the available data network. The reliability of hemispheric estimates is assessed for earlier periods when coverage is less than this maximum. Year-to-year estimates are considered reliable back to about 1875. Estimates earlier than this are judged sufficiently good to indicate trends back to 1851. This new land-based hemispheric temperature curve is compared with recent estimates of Northern Hemisphere temperatures based on marine data. The two independent estimates agree well on the decadal time scale back to the start of the century, but important discrepancies exist for earlier times.

Item Type:	Article
Uncontrolled Keywords:	sdg 14 - life below water ,/dk/atira/pure/sustainabledevelopmentgoals/life_below_water
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Climatic Research Unit Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Climate, Ocean and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Rosie Cullington
Date Deposited:	06 Jul 2011 10:54
Last Modified:	24 Sep 2024 10:36
URI:	https://ueaeprints.uea.ac.uk/id/eprint/33393
DOI:	10.1175/1520-0450(1986)025<0161:NHSATV>2.0.CO;2

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