Oak Ridge National Laboratory Distributed Active Archive Center

nasa-ornldaac-550

Global 30-Year Mean Monthly Climatology, 1901-1960 (New et al.)

ABSTRACT: This is a data set of 30-year mean monthly surface climate data over global land areas, excluding Antarctica, for the period 1901-1960. The data set is gridded at 0.5 degree latitude/longitude resolution and includes seven variables: precipitation, mean temperature, diurnal temperature range, wet-day frequency, vapour pressure, cloud cover, and ground-frost frequency. In constructing the monthly grids the authors used an anomaly approach which attempts to maximize station data in space and time (New et al., 2000). In this technique, grids of monthly historic anomalies are derived relative to a standard normal period. Station measurement data for the years 1961-1990, extracted from the monthly data holdings of the Climatic Research Unit and the Global Historic Climatology Network (GHCN), served as the normal period (New et al., 1999). The anomaly grids were then combined with high-resolution mean monthly climatology to arrive at fields of estimated historical monthly surface climate. Data users are encouraged to see the companion file New et al.(2000) for a complete description of this technique and potential applications and limitations of the data set. For additional information, refer to the IPCC Data Distribution Centre.

daac.ornl.gov

http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=550

Identified by : ANGLIA_30YRCLIMATE

This dataset was released on January 01, 2000.

The time range for this dataset is January 01, 1901 to January 01, 1961.

The spatial range for this dataset is -60° to 60° latitude, and -180° to 180° longitude. map (center)

DOI : 10.3334/ORNLDAAC/550
Also known as :

• dataset oai:mercury-ops2.ornl.gov:ornldaac_550 (ornl lexicon)
• dataset oai:mercury.ornl.gov:ornldaac_550 (ornl lexicon)