Currently Skimming:
2 Key Issues
2 Key Issues
Pages 7-13
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Select key terms on the right to highlight them within pages of the chapter.
From page 7... ...
It also assesses current capabilities and remaining uncertainties in our ability to attribute causes for climate variations and trends over North America during the reanalysis period (1948present) , and discusses the uses, limits and opportunities for improvement of reanalysis data applied for this purpose.
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From page 8... ...
The authors correctly point out that the strength of current atmospheric reanalysis is its global coverage and complete description of atmospheric states, and that the reanalysis is best used for quantifying atmospheric processes at synoptic to decadal time scales (including describing the El Niño-Southern Oscillation (ENSO) and the spatial patterns of atmospheric modes such as the Pacific-North America Oscillation (PNA)
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From page 9... ...
This may indicate a real need to better assimilate the available surface data in order to address the surface attribution problem. Other challenges include assimilation of analyzed surface data such as gridded temperature and precipitation data into the reanalysis, minimizing spurious changes in the reanalysis data due to changes in input data, and improved data quality control for raw observations assimilated into the reanalysis.
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From page 10... ...
A concise and readable summary of the document, including key findings and recommendations, would enable all audiences -- producers of synthesis and assessment products, scientific researchers, decision-makers, media, and the public -- to glean the main points and to locate further information that may be of interest to them. The document should include a short executive summary for non-technical readers, such as congressional staff, local and regional governmental decision makers.
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From page 11... ...
Reanalysis addresses science challenges at the heart of CCSP Goal 1: "Improve knowledge of the Earth's past and present climate environment, including its natural variability, and improve understanding of the causes of observed variability and change." This topic is directly relevant to core questions on our current scientific abilities to detect and attribute causes of climate variability and change. Some specific suggestions follow.
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From page 12... ...
The introduction should also clearly convey the limitations of current reanalysis and that reanalysis could be used for future studies provided specific improvements were made. It is also important to mention that reanalysis has the potential to be an effective way of assessing long-term climate change.
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From page 13... ...
Although the committee finds that the results presented in the document are consistent with scientific literature and that the document appears to be objective, the document relies too heavily on original, non-peer-reviewed work. The authors should include more discussion of findings in the scientific literature and how the unpublished findings compare with previously published findings (especially for sections 3.1 through 3.3)
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Key Terms
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