CRUTEM3 Dataset
Climate Research Unit Air Temperature and Combined Air Temperature/Marine Anomalies V3 (CRUTEM3) is a gridded dataset of global historical land surface temperature anomalies. Data are available for each month since January 1850, on a 5 degree grid. Various diagnostics are produced from the monthly gridded fields. These include images of monthly anomaly patterns, and global, regional and local time-series.
The gridded data are based on an archive of monthly mean temperatures provided by more than 4000 weather stations distributed around the world. Each station temperature is converted to an anomaly from the 1961-90 average temperature for that station, and each grid-box value is the mean of all the station anomalies within that grid box. As well as the mean anomaly, estimates are made of the uncertainties caused by poor measurements, uncertainties in the station data, sampling uncertainties caused by the limited number of measurements available, and large-scale biases such as urbanization.
The dataset is a collaborative product of the Met Office Hadley Centre and the Climatic Research Unit at the University of East Anglia.
Publication Date: 2006
Related Organizations:
- Met Office Hadley Centre
- Climatic Research Unit, University of East Anglia
Resource Category:
Resource Types:
- Mapping tool
Impacts:
- Air temperature
