Using the definition of breakup and freeze-up for the CISDA data results in trends of-0.95 days/year (breakup) and +0.54 days/year (freeze-up) (Fig.
(2009) are at a 25 km grid resolution, and the CISDA data are 0.25[degrees] resolution (14 km in this area).
Type CISDA trend NSIDC trend Breakup -0.95 ** -0.55 *** Freeze-up +0.54 ** +0.49 Ice-free season 1.58 *** 1.05 *** TABLE 3.
Hosseinzadeh, "Face recognition system using ant colony optimization-based selected features," in Proceedings of the IEEE Symposium on Computational Intelligence in Security and Defense Applications (CISDA
Ghorbani (2009) A detailed analysis of the KDD CUP 99 data set, IEEE Symposium on Computational Intelligence for Security and Defense Applications, CISDA
Thanks to the Canadian Ice Service for making the CISDA
Somayaji, "Analysis of the 1999 darpa/lincoln laboratory ids evaluation data with netadhict," in Proceedings of IEEE Symposium on Computational Intelligence for Security and Defense Applications (CISDA
The sea-ice data used in this study were obtained from the Canadian Ice Service (CIS) Digital Archive (CISDA: http://ec.gc.ca/glaces-ice/).
The CISDA delineates polygons of similar ice conditions using the egg code: each polygon is given a total sea-ice concentration composed of up to three partial sea-ice concentrations by type (/lOths).
Despite this, the CISDA has been found sufficiently accurate for time series analyses (e.g., Kinnard et al., 2006; Galley et al., 2008; Howell et al., 2009; Tivy et al., 2011) and is in fact more accurate than passive microwave ice concentration retrievals during the melt season (Agnew and Howell, 2003).
Using the CISDA, we performed the following calculations:
Using the Canadian Ice Service Digital Archive (CISDA
) ice charts, we examine changes in sea conditions over the past 37 years and discuss their implications for cruise tourism in a warming Hudson Bay region.