This correlates with the general speed of
seasonal ice reduction for the entire Arctic during July 2008 and 2007 and earlier as published on the NSIDC website.
Not exact matches
An overall warming in the 2 × CO2 experiment causes
reduction of sea -
ice extent by 15 %, with maximum decrease in summer and autumn, consistent with observed
seasonal sea -
ice changes.
This snowpack accumulation near the poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a
reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater polar humidity, earlier
seasonal, later
seasonal and heavier snows are beginning to move water vapor from the oceans to the poles to re-build the polar
ice caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).
Even where increases are projected, there can be short - term shortages due to more variable streamflow (because of greater variability of precipitation), and
seasonal reductions of water supply due to reduced snow and
ice storage.
Seasonal sea
ice retreat in 2012 began with a major
reduction event in early June (Figure 2) associated with persistent high pressure over the Beaufort Sea and low pressure over the Kara Sea, now referred to as the Arctic Dipole (AD) weather pattern (see discussion of the AD in previous Outlooks).
For example,
reductions in
seasonal sea
ice cover and higher surface temperatures may open up new habitat in polar regions for some important fish species, such as cod, herring, and pollock.128 However, continued presence of cold bottom - water temperatures on the Alaskan continental shelf could limit northward migration into the northern Bering Sea and Chukchi Sea off northwestern Alaska.129, 130 In addition, warming may cause
reductions in the abundance of some species, such as pollock, in their current ranges in the Bering Sea131and reduce the health of juvenile sockeye salmon, potentially resulting in decreased overwinter survival.132 If ocean warming continues, it is unlikely that current fishing pressure on pollock can be sustained.133 Higher temperatures are also likely to increase the frequency of early Chinook salmon migrations, making management of the fishery by multiple user groups more challenging.134
The Arctic Ocean's shift from perennial to
seasonal ice is preconditioning the sea
ice cover there for more efficient melting and further
ice reductions each summer.