Category Archives: Climate

ARCTIC SEA ICE EXTENT 7/01/2020

January 7, 2020

Mapped Arctic sea ice extent (SIE) on this date was 13.23 million km2 which is 470,000 km2  or 3% less than the 2008-2018 median.  This is largest sea ice extent on this day since 2014

MASIE Arctic Sea Ice Extent and SIE Median for the period 1981-2010
Arctic Sea Ice Extent (MASIE Database – see above image) for the month of January for the period 2000-2020 with the 1988-2018 median

The extent of Arctic sea ice varies from summer to winter. The sea ice extent shown here relies on data from the Multisensor Snow and Ice Mapping System (IMS) that runs at the National Ice Center. The IMS product uses several satellite data sources including passive microwave, but it is also based on visual analysis and other data sources and undergoes a form of manual data fusion. The data reported here has a 1 km resolution and was sourced from the National Snow and Ice Data Center

Australia Bushfires – When Journalism Lies

Extent of Eastern Australian bushfires as of 7/01/2020. Data from the Victorian and New South Wales Rural Fires organisations.

The bushfire drama in Australia has subsided for the moment so now is a good time to take stock. As of 7/1/2020, the bushfires have devastated an area in Victoria and New South Wales of 49,600 km2.  In eastern Victoria the total burnt area was 12,100 km2 while in New South Wales it was 37,500km2.  

Various media outlets have been reporting more than 100,000 km2 was impacted by bushfires in eastern Australia which is a significant and entirely unnecessary exaggeration.

The prize for journalistic deceit however goes to Matt Zarrel of US, ABC News where he breathlessly shows a map of Australia superimposed on the USA.  The extent of the fires shown on this map (see below) totals 3.6 million km2, slightly less than half of the surface area of the continent or 60 times larger than the reality.  I doubt that anyone can be surprised.

ABC news was so embarrassed by the gross exaggeration they  removed the graphic.  

While the Australian Bushfires in 2019-2020 have been widespread it is worth noting that such events in Australia are not uncommon  as can be seen for the tabulation below for the state of Victoria.  The fires of 1939 covered 35,000 km2, a significant multiple to the 2019-2020 fires which were more comparable in scale to the 2003 and 2007 events.

ARCTIC SEA ICE EXTENT 4/01/2020

January 4, 2020

Mapped Arctic sea ice extent (SIE) on this date was 13.12 million km2 which is 430,000 km2  or 3% less than the 2008-2018 median.  This is largest sea ice extent on this day since 2014 and the 12th highest since 2000.    We predict maximum SIE of 15 million km2 to be reached in early April 2020.

MASIE Arctic Sea Ice Extent and SIE Median for the period 1981-2010

Arctic Sea Ice Extent (MASIE Database – see above image) for the month of January for the period 2000-2020 with the 1988-2018 median

The extent of Arctic sea ice varies from summer to winter. The sea ice extent shown here relies on data from the Multisensor Snow and Ice Mapping System (IMS) that runs at the National Ice Center. The IMS product uses several satellite data sources including passive microwave, but it is also based on visual analysis and other data sources and undergoes a form of manual data fusion. The data reported here has a 1 km resolution and was sourced from the National Snow and Ice Data Center

Arctic Sea Ice extent 3/01/2020

January 3, 2020

Mapped Arctic sea ice extent (SIE) on this date was 13.176 million km2 which is 280,000 km2  or 2% less than the 2008-2018 median.  This is largest sea ice extent since 2012 and the 12th highest since 2000.  Sea ice is steading growing in the Bearing and Barents Seas and around Greenland.  We predict maximum SIE of 15 million km2 to be reached in early April 2020.

The extent of Arctic sea ice varies from summer to winter. The sea ice extent shown here relies on data from the Multisensor Snow and Ice Mapping System (IMS) that runs at the National Ice Center. The IMS product uses several satellite data sources including passive microwave, but it is also based on visual analysis and other data sources and undergoes a form of manual data fusion. The data reported here hasa 1 km resolution and was sourced from the National Snow and Ice Data Center