Coverage bias in the HadCRUT4 temperature record
Kevin Cowtan and Robert Way
Methods and Data
This page provides code and data required to reproduce all the calculations from the paper. A unix-like system is required (Linux or Mac), although a Windows system with MinGW may also do. Python 2.6/7 is required along with the
Temperature data are files contain 3 columns: Fractional date, Temperature, Standard uncertainty due to coverage only (1σ). Map data are in a similar format to the ascii files provided by Hadley or NCDC, i.e. 1 line with year and month followed by 36 lines of 72 values.
- coverage.zip (24Mb) Computer code and data used in preparation of the paper. Unpack the archive and read coverage/README.
- had4_hybrid.temp Monthly temperature series for hybrid reconstruction.
- had4_krig.temp Monthly temperature series for kriging reconstruction.
- had4_hybrid.dat.gz Monthly map series for hybrid reconstruction. (NetCDF)
- had4_krig.dat.gz Monthly map series for kriging reconstruction. (NetCDF)
Update 2014-04-04
The following file contains partial methods and data for our update of 2014-04-04 on reconciling temperature series. Note that the data are rather large.- homogenization.zip (147Mb) Computer code and data used in preparation of the report. Unpack the archive and read homogenization/README.