Articles | Volume 5, issue 2
Geosci. Instrum. Method. Data Syst., 5, 473–491, 2016
https://doi.org/10.5194/gi-5-473-2016
Geosci. Instrum. Method. Data Syst., 5, 473–491, 2016
https://doi.org/10.5194/gi-5-473-2016

Research article 29 Sep 2016

Research article | 29 Sep 2016

Expanding HadISD: quality-controlled, sub-daily station data from 1931

Robert J. H. Dunn et al.

Data sets

HadISD2 R. J. H. Dunn, K. M. Willett, D. E. Parker, and L. Mitchell http://www.metoffice.gov.uk/hadobs/hadisd/v200_2015p/index.html

ISD A. Smith, N. Lott, and R. Vose http://www.ncdc.noaa.gov/isd/

PHA M. Menne and C. Williams Jr. http://www.ncdc.noaa.gov/oa/climate/research/ushcn/#phas

HadISD2 R. J. H. Dunn, K. M. Willett, D. E. Parker, and L. Mitchell https://github.com/rjhd2/HadISD_v2/

Short summary
We have extended the sub-daily, integrated HadISD back to 1931 to double the time coverage of the dataset. We have updated and improved the station selection and merging procedure, which will be rerun on an annual basis to prevent it becoming out of date. The quality-control code has been rewritten from IDL to Python2.7 to make it clearer and more accessible. We have also calculated humidity and heat-stress variables in HadISD.2.0.0. This increases the value and applicability of this dataset.