Projected
September daily extents are averaged to calculate the projected September average extent.
The September daily extents are averaged to calculate the monthly extent.
The monthly average is then calculated from
the September daily extents.
Not exact matches
Meier (NASA Goddard), 5.09 (+ / - 0.62), Statistical This method is a simple statistical method that uses previous years»
daily rates of
extent change to project the 2015
daily extent through the end of
September.
The graph above shows Arctic sea ice
extent as of
September 5, 2016, along with
daily ice
extent data for four previous years.
The
daily estimate of the
September extent, the anomaly of the current day and a time series of
daily estimates since May 2012 can be found on our ftp - server: ftp://ftp-projects.zmaw.de/seaice/prediction/2012/
Meier et al, 4.5, + / -0.3, Statistical This statistical method uses previous years»
daily extent change rates from August 1 through
September 30 to calculate projected
daily extents starting from July 31.
Hamilton, 4.0 + / - 0.3, Statistical A simple regression model for NSIDC mean
September extent as a function of mean
daily sea ice area from August 1 to 5, 2012 (and a quadratic function of time) predicts a mean
September 2012
extent of 4.02 million km2, with a confidence interval of plus or minus.32.
The simulated
daily ice
extent for all 20 realizations of the ensemble is shown in Figure 1 from the initialization until end of
September.
The
daily September extents are averaged to create monthly averages.
Daily sea ice
extent timeseries for April through
September for 2015 (light blue, through 17 August), 2012 (dashed green), and the 1981 - 2010 average (black) and standard deviation (gray).
Meier, 4.78 (± 0.34), Statistical This method uses
daily extent change rates to project the 2014
extent on July 31 through the end of
September.
Meier (NASA Goddard), 4.88 (± 0.43), Statistical This method is a simple statistical method that uses previous years»
daily rates of
extent change to project the 2015
daily extent through the end of
September.
Meier et al, 4.6, + / -0.5 Statistical This statistical method uses previous years»
daily extent change rates from July 1 through
September 30 to calculate projected
daily extents starting from June 30.
Meier et al. (National Snow and Ice Data Center); 4.7 ± 0.6; Statistical This statistical method uses previous years»
daily extent change rates from July 1 through
September 30 to calculate projected
daily extents starting from June 30.