Sentences with phrase «using bias correction»

Initial downscaled daily simulations of temperature and precipitation at 10 - km resolution are produced using bias correction constructed analogs with quantile mapping (BCCAQ).

The gridded field is produced from ship and buoy sea surface temperatures in the ICOADS release 2.5 data set (29) using bias correction and Empirical Orthogonal Teleconnection methodologies as described in (13).

Not exact matches

Using their findings, they developed a mathematical correction that takes into account bias and social information to generate an improved crowd estimate.

The two updates are: 1) the adoption of ERSST v4 for the ocean temperatures (incorporating a number of corrections for biases for different methods), and 2) the use of the larger International Surface Temperature Initiative (ISTI) weather station database, instead of GHCN.

A Wall Street Journal headline recently declared, «AIG Corrects...» Given the Street's eternal optimism and favorable bias, it uses the term «correction» to indicate a stock - price decline.

That means using meta - data, using corrections of known biases, comparing near - by stations, correcting for UHI etc..

Because GISTEMP, NCDC and HadCRUT3 are all using current generation SST datasets, and HadCRUT4 is using a next generation SST product with additional bias corrections.

A comparison of HadSST2 with the NCDC temperature data, and of the unadjusted HadSST3 (i.e. without the new bias corrections) with NCDC using only common coverage ocean cells is shown in right panel of Figure 2.

The first is Bias - Correction Spatial Disaggregation (BCSD)(Wood et al., 2004) following Maurer et al., (2008) with the following modifications: the incorporation of monthly minimum and maximum temperature instead of monthly mean temperature, as suggested by Bürger et al., (2012) and bias correction using detrended quantile mapping with delta method extrapolation following Bürger et alCorrection Spatial Disaggregation (BCSD)(Wood et al., 2004) following Maurer et al., (2008) with the following modifications: the incorporation of monthly minimum and maximum temperature instead of monthly mean temperature, as suggested by Bürger et al., (2012) and bias correction using detrended quantile mapping with delta method extrapolation following Bürger et alcorrection using detrended quantile mapping with delta method extrapolation following Bürger et al., (2013).

The ICESat bias corrections used by the Zwally team were appropriate for measuring sea ice, but not for measuring high altitude land - base ice sheets like found in Antarctica (the values returned for Lake Vostok alone were so unphysical that they should have made the entire study DOA) 2.

So, the next step will be to revisit the SST bias corrections and refine them, making use of the new information uncovered concerning national measurement practices and new analysis techniques that allow for more accurate corrections in areas and at times where there are few data.

The raw daily climate model simulation results were bias corrected according to the ISI - MIP protocol (1, 23), despite known caveats with respect to the use of bias correction in climate impact studies (24).

Given that biases in buckets measurements depend on the air - sea temperature difference any more detailed corrections would involve using both MAT and SST together.

Quantile mapping bias correction algorithms are commonly used to correct systematic distributional biases in precipitation outputs from climate models.

Instead Kennedy et al have created 100 «realizations» of data using different values for the various bias corrections which sample the uncertainty range for each correction.

Outputs from seven downscaling methods — bias correction constructed analogues (BCCA), double BCCA (DBCCA), BCCA with quantile mapping reordering (BCCAQ), bias correction spatial disaggregation (BCSD), BCSD using minimum / maximum temperature (BCSDX), the climate imprint delta method (CI), and bias corrected CI (BCCI)-- are used to drive the Variable Infiltration Capacity (VIC) model over the snow - dominated Peace River basin, British Columbia.

A bias correction method will be used to provide the bulk SST.

The 6th ECMWF reanalysis (ERA6) will use the (C++ based) Object - Oriented Prediction System (OOPS) and (Fortran - based) Integrated Forecasting System (IFS) and there is a requirement to optimise the variational bias correction system under OOPS and IFS.

In particular, he explained the bias dependency on the lead time, also known as drift, and distinguished between two approaches for bias adjustment (and not bias correction): a non-parametric, consisting in adjusting each forecast time separately, and a parametric approach, where a function to adjust different forecast times at once is used.

This dataset is bias - corrected and downscaled using the Bias - Correction Spatial Disaggregation (BCSD) method (Thrasher et al., 2012).

«Accounting for multiple sources of uncertainty, a composite of several OHCA curves using different XBT bias corrections still yields a statistically significant linear warming trend for 1993 — 2008 of 0.64 W m - 2 (calculated for the Earth's entire surface area), with a 90 - per - cent confidence interval of 0.53 — 0.75 W m - 2.»

The phrase «Accounting for multiple sources of uncertainty, a composite of several OHCA curves using different XBT bias corrections» raises a red flag to me.

Table 2.2 shows linear trends of the annual optimum averages, and twice their standard errors, for the globe and hemispheres using the restricted maximum likelihood method as in Table 2.1 and allowing for the annual uncertainties due to data gaps, urbanisation over land, and bias corrections to SST.

Effect sizes were calculated using Cohen's d and applying Hedge's g correction for small sample bias.