Figure 3: Estimates of natural and human -
induced atmospheric temperature change from 1951 — 2010.
Not exact matches
A more definitive reconciliation of modeled and observed
temperature changes awaits the extension and improvement of the observations and the algorithms used in processing them, better specification of the natural and human -
induced climate forcings during this period, and improvement of the models used to simulate the
atmospheric response to these forcings.break
(3) Natural as well as human -
induced changes should be taken into account in climate model simulations of
atmospheric temperature variability on the decade - to - decade time scale.
However, a confident assessment of human influence on hurricanes will require further studies using models and observations, with emphasis on distinguishing natural from human -
induced changes in hurricane activity through their influence on factors such as historical sea surface
temperatures, wind shear, and
atmospheric vertical stability.
The observed patterns of surface warming,
temperature changes through the atmosphere, increases in ocean heat content, increases in
atmospheric moisture, sea level rise, and increased melting of land and sea ice also match the patterns scientists expect to see due to rising levels of CO2 and other human -
induced changes (see Question 5).
The current California drought is bad because for the first time ever, scientists from many different fields see parallel lines of evidence for the influence of human -
induced climate
changes, including the fingerprints of higher
temperatures and
changes in the
atmospheric circulation patterns.
When heavy rainfall probabilities were next investigated in ensembles of two
atmospheric general circulation models, run with and without anthropogenically -
induced sea surface
temperature changes, results were model - dependent.
A percentage
change in cloud cover can be used to calculate the additional clear air absorption and water absorption, and thus the W / m2 warming that
induced the specific near - surface energy increase and near - surface
atmospheric temperature rise.