Depleting ice cover to make navigation in the Arctic hazardousNovember 14th, 2007 - 2:55 am ICT by admin
“The Arctic is already experiencing an increase in shipping, primarily for oil and gas development and tourism, and we can expect to see further increases as diminishing ice extent makes Arctic marine transportation more viable. The International Ice Charting Working Group (IICWG) cautions that sea ice and icebergs will continue to present significant hazards to navigation for the foreseeable future,” a statement released at ESRIN conference said.
It said, in September 2007, the Arctic sea ice reached the minimum extent - the lowest amount of ice recorded in the area annually - in the history of ice charting based on satellite, aircraft and surface observations.
This was a continuation of a recent trend of diminishing sea ice that began in the 1980s and which has accelerated. While there would still be natural inter-annual variability, the decline would likely to continue, the statement added.
During the last 25 years, satellites have been observing the Arctic and have witnessed reductions in the minimum ice extent at the end of summer from around 8 million sq. kms in the early 1980s to the historic minimum of less than 4.24 million sq. kms in 2007, as observed in September by ESA’s Envisat satellite.
The previous record low, as observed by Envisat and the EOS Aqua satellite, was in 2005 when the minimum ice extent was 5.5 million sq. kms.
“We have been very lucky to have had the capability to monitor the polar regions with satellites since the 1970s because it has allowed us to fully capture the trend,” said Dr Pablo Clemente-Col
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- Arctic sea ice level reaches second-lowest in history - Oct 06, 2011
- Thickest Arctic Sea ice melting much faster - Mar 01, 2012
- Arctic sea ice hits second-lowest level - Oct 05, 2011
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- Arctic undergoing rapid change due to climate change, pollution and human activity - Dec 03, 2008
- Arctic ice melt likely to stabilise - Aug 12, 2011
- Arctic sea ice cover reaches minimum extent for 2009 - Sep 18, 2009
- Arctic ice melting: Russian meteorologists - Aug 07, 2011
- Arctic sea ice loss driving snowy winters - Feb 28, 2012
- Arctic ice could vanish within 10 years: Scientists - Aug 13, 2012
- Extent of Arctic Sea ice is third lowest on record - Oct 07, 2009
Tags: 1980s, arctic marine, arctic sea ice, cautions, envisat satellite, eos, extent, foreseeable future, gas development, history of ice, icebergs, international ice, marine transportation, oil and gas, polar regions, satellites, sq kms, surface observations, variability, working group