%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3EU29DP
%3 BF00149003.pdf
%X Maximum Entropy Spectral Analysis of the annual mean surface temperature series for land masses and sea in the northern and southern hemispheres indicated long-term linear warming trends of (0.12 to 0.56) C/century with superposed significant periods in the ranges T=5-6 yr, 10-11 yr, 15 yr, 20 yr, 28-32 yr, and 55-80 yr. Extrapolation in future indicated for 2000-2030 a departure of (+0.4 degree C) above the 1950-70 level. However, for the 1980s, the observed values are above the expected level, probably indicating large greenhouse effects due to human intervention. In that case, our predictions would be underestimates.
%8 Aug.
%N 1
%@secondarydate 19930105
%T Power spectrum analysis of the time-series of annual mean surface air temperatures
%K GEOFISICA ESPACIAL.
%@secondarytype PRE PI
%@archivingpolicy denypublisher denyfinaldraft12
%@usergroup administrator
%@usergroup jefferson
%@group DGE-INPE-BR
%@group DGE-INPE-BR
%@secondarykey INPE-5105-PRE/1606
%F 2966
%@issn 0165-0009
%2 sid.inpe.br/iris@1905/2005/07.29.03.15.40
%B Climatic Change
%@versiontype publisher
%P 121-130
%4 sid.inpe.br/iris@1905/2005/07.29.03.15
%@documentstage not transferred
%D 1990
%V 17
%A Kane, Rajaram Purushottam,
%A Teixeira, Nelson Rodrigues,
%@dissemination WEBSCI; PORTALCAPES; MGA; COMPENDEX.
%@area CEA