Sentences with phrase «climate model calibration»

To what extent was this taken account of in climate model calibration?

Not exact matches

I worked with climate data in hydrologic model development and calibration at a NOAA National Weather Service (NWS) River Forecast Center (RFC) from 1976 - 2005.

While the various methods can be tested with climate model simulations, it would arguably be more satisfying if inferences could be obtained in a manner which bypasses the difficult issue of calibration entirely, and also eliminates any need to establish the precise seasonality of information reflected by the various available proxy records.

I believe that statisticians can contribute more to climate sciences in better description of the uncertainties, in addition to better calibration of statistical models.

An equatorial volcano occurring during that period would allow much better model calibration, for example, settling questions about transient climate response.

Such improved precision would allow close study of decade scale fluctuations in surface temperature that can lead to much better calibration of climate models.

[Response: Following up Gavin's comment, it has indeed already been shown — based on experiments with synthetic proxy data derived from a long climate model simulation (see Figure 5 herein)-- that the calibration method used by Moberg et al is prone to artificially inflating low - frequency variability.

In my opinion, any climate model's V&V MUST include allowing the model to run outside its calibration space, (that is, into the future) and then waiting to see what the real world actually does.

The period 1981 — 2000 is used for model calibration and 2001 — 2010 for validation, with performance assessed in terms of 27 Climate Extremes Indices (CLIMDEX).

Because this result is implausible, instrumentation calibration factors were introduced to reduce the imbalance to the imbalance suggested by climate models, 0.85 W / m2 (Loeb et al., 2009).

It would be interesting to see sensitivities from such climate models with a proper calibration.

The NSRDB accounts for any recent climate changes and provides more accurate values of solar radiation due to a better model for estimating values (more than 90 percent of the solar radiation data in both data bases are modeled), more measured data including direct normal radiation, improved instrument calibration methods, and rigorous procedures for assessing quality of data.

Whenever climate models contribute to an estimation, they may suffer from very poor calibration, for example calibration with the MBH99 hockeystick.

They introduce a phony instrument «calibration» to make their measurement read what the climate models suggest.

If the climate models use hindcasting to Hadley or Giss pre-1979 temperature series as any sort of calibration, they are calibrating to a CREATED TREND, created using cooling adjustments to pre-1979 data.

A major limitation is the fact that the calibration phase for these semi-empirical models does not cover the range of climate - system behaviour that might be expected for the 21st century, i.e., significant loss of ice from the large polar ice sheets.