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Global Change Master Directory (GCMD)
Global Temperature Indices at at LDEO/IRI Climate Data Library
Entry ID: LDEO_INDICES_HANSEN


Summary
Abstract: This data set consists of average gloabl temperature from an analysis
by Hansen and Lebedeff at NASA/GISS.

These data are an update of the analyses described by Hansen and
Lebedeff (1987). Discussions of the data are given in the
references. The input data for these analyses are principally the
Monthly Climatic Data of the World (MCDW) from about 2000
meteorological stations around the world, supplemented for the most
recent several months by NOAA near real time data for most of these
stations.

This analysis is updated each month. The data for earlier months and
years changes slightly as additional stations are added and as the
near real time NOAA data is replaced by MCDW data.

Nonclimatic influences, e.g. urban warming, have not been expunged
from the meteorological station data. Hansen and Lebedeff (1987)
estimate that urban effects cause a warming of about 0.1C/century on
global average, but the effects can be larger and smaller in different
regions. The annual-mean global-mean temperature anomaly in recent
decades is estimated to have a two-sigma uncertainty of about 0.07C
due to incomplete spatial coverage of stations. Thus the relative rank
of different years is uncertain for years whose temperatures differ by
less than that amount.

Parent DIF
This description is a member of a collection. The collection is described in
LDEO_INDICES


Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Creator: Hansen, J. and S. Lebedeff
Dataset Title: Global Temperature Indices
Dataset Release Place: Palisades, NY
Dataset Publisher: Lamont-Doherty Earth Observatory, Columbia University
Version: Not provided


Temporal Coverage
Start Date: 1867-01-01
Stop Date: 1994-12-31


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Data Resolution
Temporal Resolution: monthly, annual, seasonal


Science Keywords
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >SURFACE TEMPERATURE >AIR TEMPERATURE    [Definition]


Project
DODS >Distributed Oceanographic Data System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
OPENDAP >Open-source Project for a Network Data Access Protocol    [Information]


Keywords
CLIMATE CHANGE
GLOBAL WARMING
TEMPERATURE INDICES


Data Set Progress
COMPLETE


Data Center
Climate Data Library, International Research Institute for Climate Prediction, Lamont-Doherty Earth Observatory, Columbia University    [Information]
Data Center URL: http://ingrid.ldeo.columbia.edu/

Data Center Personnel
Name: IRI/LDEO CLIMATE DATA LIBRARY HELP
Email: help at iri.columbia.edu



Distribution
Distribution_Media: WWW
Fees: none


Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2000-08-24
Last DIF Revision Date: 2019-01-11



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