Sea Ice covering the Arctic Ocean melted away to a record low in 2012, according to the National Snow and Ice Data Center.
Alaska Sea Grant will convene Responses of Arctic Marine Ecosystems to Climate Change, the 28th Lowell Wakefield Fisheries Symposium, in Anchorage, Alaska, March 26–29, 2013.
The event will bring scientists from around the world to share their research on how arctic marine ecosystems are responding to climate change.
Symposium topics will include:
* Observed and anticipated environmental changes in the Arctic.
* Lower trophic level productivity of arctic waters in a changing climate.
* Marine fish resources of the Arctic in a changing climate.
* Observed and anticipated responses of arctic birds and marine mammals to environmental changes in the Arctic.
* Effects of changing arctic marine ecosystems on humans.
* Understanding and managing arctic marine ecosystems in a time of change.
A complete description and agenda of the symposium can be found online at www.alaskaseagrant.org
The symposium is organized by Alaska Sea Grant, guided by steering committee members from NOAA Alaska Fisheries Science Center, UAF School of Fisheries and Ocean Sciences, Pew Environment Group, U.S. Arctic Research Commission, Canada Department of Fisheries and Oceans, Alaska Department of Fish and Game, North Pacific Fishery Management Council, North Pacific Research Board, and the Institute of Marine Research in Norway.
source: Alaska Sea Grant
Showing posts with label global warming. Show all posts
Showing posts with label global warming. Show all posts
Friday, March 22, 2013
Sunday, February 19, 2012
Ocean Acidification - Climate Change Research
Alaska Sea Grant recently announced the availability of new climate change-related publications.
"Ocean Acidification and Fisheries: Alaska's Challenge and Response" was authored by Marine Advisory agent Torie Baker. In the article the author describes how ocean acidification impacts Alaska’s seas and explores ocean acidification topics that Alaska researchers focus on and why.
Commercially important shellfish are a top research priority because of their economic value and because they are likely to suffer direct effects of reduced calcium carbonate availability.
Terry Johnson added three new climate adaptation fact sheets to the website Adapting to Climate Change in Coastal Alaska: Fisheries Effects, Harmful Algal Blooms, and Species Shifts.
The Alaska Sea Grant Marine Advisory Program project brings a marine-dependent community perspective to climate change adaptation issues by supplying adaption tools, fact sheets, and videos. The project is supported by the Alaska Center for Climate Assessment and Policy (ACCAP).
Each of the documents can be obtained at the Alaska Sea Grant bookstore.
source: Alaska Sea Grant
"Ocean Acidification and Fisheries: Alaska's Challenge and Response" was authored by Marine Advisory agent Torie Baker. In the article the author describes how ocean acidification impacts Alaska’s seas and explores ocean acidification topics that Alaska researchers focus on and why.
Commercially important shellfish are a top research priority because of their economic value and because they are likely to suffer direct effects of reduced calcium carbonate availability.
Terry Johnson added three new climate adaptation fact sheets to the website Adapting to Climate Change in Coastal Alaska: Fisheries Effects, Harmful Algal Blooms, and Species Shifts.
The Alaska Sea Grant Marine Advisory Program project brings a marine-dependent community perspective to climate change adaptation issues by supplying adaption tools, fact sheets, and videos. The project is supported by the Alaska Center for Climate Assessment and Policy (ACCAP).
Each of the documents can be obtained at the Alaska Sea Grant bookstore.
source: Alaska Sea Grant
Monday, January 24, 2011
2010 Among Warmest Years on Record
The year 2010 ranked as the warmest year on record, together with 2005 and 1998, according to the World Meteorological Organization. Data received by the WMO show no statistically significant difference between global temperatures in 2010, 2005 and 1998.
In 2010, global average temperature was 0.53°C (0.95°F) above the 1961-90 mean. This value is 0.01°C (0.02°F) above the nominal temperature in 2005, and 0.02°C (0.05°F) above 1998. The difference between the three years is less than the margin of uncertainty (± 0.09°C or ± 0.16°F) in comparing the data.
These statistics are based on data sets maintained by the UK Meteorological Office Hadley Centre/Climatic Research Unit (HadCRU), the U.S. National Climatic Data Center (NCDC), and the U.S. National Aeronautics and Space Administration (NASA).
Arctic sea-ice cover in December 2010 was the lowest on record, with an average monthly extent of 12 million square kilometres, 1.35 million square kilometres below the 1979-2000 average for December. This follows the third-lowest minimum ice extent recorded in September.
“The 2010 data confirm the Earth’s significant long-term warming trend,” said WMO Secretary-General Michel Jarraud. “The ten warmest years on record have all occurred since 1998.”
source: World Meteorological Organization
In 2010, global average temperature was 0.53°C (0.95°F) above the 1961-90 mean. This value is 0.01°C (0.02°F) above the nominal temperature in 2005, and 0.02°C (0.05°F) above 1998. The difference between the three years is less than the margin of uncertainty (± 0.09°C or ± 0.16°F) in comparing the data.
These statistics are based on data sets maintained by the UK Meteorological Office Hadley Centre/Climatic Research Unit (HadCRU), the U.S. National Climatic Data Center (NCDC), and the U.S. National Aeronautics and Space Administration (NASA).
Arctic sea-ice cover in December 2010 was the lowest on record, with an average monthly extent of 12 million square kilometres, 1.35 million square kilometres below the 1979-2000 average for December. This follows the third-lowest minimum ice extent recorded in September.
“The 2010 data confirm the Earth’s significant long-term warming trend,” said WMO Secretary-General Michel Jarraud. “The ten warmest years on record have all occurred since 1998.”
source: World Meteorological Organization
Wednesday, December 1, 2010
Alaska Department of Fish and Game Climate Change Strategy
The Alaska Department of Fish and Game (ADF&G) has released its Climate Change Strategy that describes expected impacts from our changing climate on fish and wildlife resources and their uses across Alaska. The document points to needed research, and identifies key strategies and initial actions the department intends to take in order to address anticipated impacts.
"The changing climate brings additional challenges to managing fish and wildlife and their uses. This strategy helps us define the challenges and identifies important steps we will be taking to prepare and adapt," said Doug Vincent-Lang, Special Assistant with the department.
source: Alaska Department of Fish and Game
"The changing climate brings additional challenges to managing fish and wildlife and their uses. This strategy helps us define the challenges and identifies important steps we will be taking to prepare and adapt," said Doug Vincent-Lang, Special Assistant with the department.
source: Alaska Department of Fish and Game
Thursday, April 15, 2010
March Ocean Temperatures Hottest on Record
The world’s combined global land and ocean surface temperature made last month the warmest March on record, according to NOAA. Taken separately, average ocean temperatures were the warmest for any March and the global land surface was the fourth warmest for any March on record. Additionally, the planet has seen the fourth warmest January – March period on record.
The monthly National Climatic Data Center analysis, which is based on records going back to 1880, is part of the suite of climate services NOAA provides government, business and community leaders so they can make informed decisions.
source: NOAA
The monthly National Climatic Data Center analysis, which is based on records going back to 1880, is part of the suite of climate services NOAA provides government, business and community leaders so they can make informed decisions.
source: NOAA
Monday, March 22, 2010
Study Finds Arctic Permafrost Melting
A new study published in the 5 March issue of Science magazine shows that a long warned of climate change phenomenon is now underway. Climate scientists have been saying for some time that global warming could enable the release of vast stores of the greenhouse gas methane that are frozen into the Arctic permafrost, which would in turn further provide significant increases in global warming.
The study, published by researchers at the University of Alaska, Fairbanks, and elsewhere, say this phenomenon is occurring under the sea in the East Siberian Arctic Shelf, which is west of the Bering Strait.
While climate experts say this does not suggest imminent climate catastrophe, it is important because of methane’s role as a greenhouse gas. While carbon dioxide is far more abundant and remains in the atmosphere for a much longer period than methane, atmospheric methane traps at least 25 times as much heat.
Atmospheric concentrations of methane have more than doubled since pre-industrial times, and most of it comes from human activities such as energy production, raising cattle and rice cultivation. But about 40 percent of atmospheric methane is natural, including the decomposition of organic materials in wetlands and frozen wetlands like permafrost.
Dr. Shakhova, the head researcher in the study, said that permafrost in the East Siberian Arctic Shelf, which is peat land that flooded as sea levels rose after the last ice age, is degrading in part because river runoff that feeds the Arctic Ocean is warmer than in the past.
According to Dr. Shakhova, atmospheric levels of methane over the Arctic are 1.85 parts per million, almost three times as high as the global average of 0.6 or 0.7 parts per million. Concentrations over the East Siberian Arctic Shelf are 2 parts per million or higher. For more information, read the Planet Ark story here: http://planetark.org/wen/57021. The New York Times covers this story at: www.nytimes.com/2010/03/05/science/earth/05methane.html?hpw.
source: Fishlink Sublegals
The study, published by researchers at the University of Alaska, Fairbanks, and elsewhere, say this phenomenon is occurring under the sea in the East Siberian Arctic Shelf, which is west of the Bering Strait.
While climate experts say this does not suggest imminent climate catastrophe, it is important because of methane’s role as a greenhouse gas. While carbon dioxide is far more abundant and remains in the atmosphere for a much longer period than methane, atmospheric methane traps at least 25 times as much heat.
Atmospheric concentrations of methane have more than doubled since pre-industrial times, and most of it comes from human activities such as energy production, raising cattle and rice cultivation. But about 40 percent of atmospheric methane is natural, including the decomposition of organic materials in wetlands and frozen wetlands like permafrost.
Dr. Shakhova, the head researcher in the study, said that permafrost in the East Siberian Arctic Shelf, which is peat land that flooded as sea levels rose after the last ice age, is degrading in part because river runoff that feeds the Arctic Ocean is warmer than in the past.
According to Dr. Shakhova, atmospheric levels of methane over the Arctic are 1.85 parts per million, almost three times as high as the global average of 0.6 or 0.7 parts per million. Concentrations over the East Siberian Arctic Shelf are 2 parts per million or higher. For more information, read the Planet Ark story here: http://planetark.org/wen/57021. The New York Times covers this story at: www.nytimes.com/2010/03/05/science/earth/05methane.html?hpw.
source: Fishlink Sublegals
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