Sentences with phrase «observational climate datasets»

Observational climate datasets are regularly updated to include newly digitised historical paper records and improved analysis techniques.

Not exact matches

... Even in the satellite era — the best observed period in Earth's climate history — there are significant uncertainties in key observational datasets.
Part of the story here is that it is this very sort of very careful work done by John Kennedy and Phil Jones and other colleagues working on these datasets that has allowed us to start challenging the models and our understanding in such a detailed way — in some ways it is quite remarkable that the observational data is now good enough to identify this level of detail in how the climate varies and changes.
Using the SFZ 2008 tar file archive data in combination with the deep - ocean diagnostic model and control - run data used in SFZ 2008, and a deep - ocean diagnostic observational trend calculated from the Levitus et al 2005 dataset, I can produce broadly similar climate parameter PDFs to those in the Forest 2006 main results (Figure 2: GSOLSV, κsfc = 16, uniform prior), with a peak climate sensitivity around S = 3.
b) when used with the HadCM2 - derived surface control data covariance matrix from the SFZ 2008 data, which I have largely been able to agree to raw data from the HadCM2 AOGCM control run (which data Dr Forest has confirmed was used for the Forest 2006 main results), the CSF 2005 surface model and observational data produces, irrespective of which upper air and deep - ocean dataset is used, a strongly peaked PDF for climate sensitivity, centred close to S = 1, not S = 3 as per Forest 2006.
Monitoring changes in Australia's climate requires observational datasets that are not only good quality, but also homogeneous through time.
... Even in the satellite era — the best observed period in Earth's climate history — there are significant uncertainties in key observational datasets.
9.4.1.3.2 Upper tropospheric temperature trends Most climate model simulations show a larger warming in the tropical troposphere than is found in observational datasets (e.g., (McKitrick et al., 2010)(Santer et al., 2012)-RRB-.
«Evidence for climate change in the satellite cloud record» «Cloud feedback mechanisms and their representation in global climate models» «A net decrease in the Earth's cloud, aerosol, and surface 340 nm reflectivity during the past 33 yr (1979 — 2011)» «New observational evidence for a positive cloud feedback that amplifies the Atlantic Multidecadal Oscillation» «Impact of dataset choice on calculations of the short - term cloud feedback»
They are perhaps the largest uncertainty in our understanding of climate change, owing to disagreement among climate models and observational datasets over what cloud changes have occurred during recent decades and will occur in response to global warming2, 3.
«Using state - of - the - art observational datasets and results from a large archive of computer mode simulations, a consortium of scientists from 12 different institutions has resolved a long - standing conundrum in climate science»
The State of the UK Climate report is an annual publication which provides an accessible, authoritative and up - to - date assessment of UK climate trends, variations and extremes based on the latest available climate quality observational daClimate report is an annual publication which provides an accessible, authoritative and up - to - date assessment of UK climate trends, variations and extremes based on the latest available climate quality observational daclimate trends, variations and extremes based on the latest available climate quality observational daclimate quality observational datasets.
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