Tag Archives: map

2011 precipitation anomalies in USA

Posted on December 15, 2011 by Garry Peterson

From US’s National Weather Service – big precipitation anomalies in US this past year.  The purple areas are extra wet, while the red areas are extra dry. update: “Normal” precipitation is derived from PRISM climate data, created at Oregon State … Continue reading →

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Mapping China and India’s diasporas

Posted on November 21, 2011 by Garry Peterson

The Economist maps the largest twenty countries of China and India’s diasporas. More Chinese people live outside mainland China than French people live in France, with some to be found in almost every country. Some 22m ethnic Indians are scattered … Continue reading →

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Mapping ecological impact of 2010 Amazonian drought

Posted on April 18, 2011 by Garry Peterson

From NASA EOS Image of the Day: Between July and September 2010, severe drought gripped the Amazon Basin. The Negro River, a tributary of the Amazon, reached its lowest level in 109 years of record-keeping, and uncontrolled fires spread a … Continue reading →

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Mapping impact of snow and ice feedbacks on climate

Posted on February 25, 2011 by Garry Peterson

NASA Earth Observatory Image of the day has some powerful figures created with data from a new paper by Mark Flanner and others Radiative forcing and albedo feedback from the Northern Hemisphere cryosphere between 1979 and 2008. in Nature Geoscience. … Continue reading →

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Mapping the worlds rivers

Posted on August 27, 2010 by Garry Peterson

Bernhard Lehner my geography colleague from Burnside Hall at McGill has recently released HydroSHEDS a new global map of the worlds rivers.  Maps based upon this data were featured in the March issue of National Geographic. HydroSHEDS is: a new … Continue reading →

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Aquatic Dead Zones

Posted on July 26, 2010 by Garry Peterson

I’ve published several links to global maps of coastal hypoxia. Now, NASA has produced a new map of global hypoxic zones, based on Diaz and Rosenberg’s . Spreading Dead Zones and Consequences for Marine Ecosystems. in Science, 321(5891), 926-929.  NASA’s … Continue reading →

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Malaria, public health, and climate

Posted on May 21, 2010 by Garry Peterson

Peter Gething, from the malaria atlas project at Oxford, and others have a paper in Nature, Climate change and the global malaria recession (doi:10.1038/nature09098) that examines at changes in global malaria distribution.  While the world warmed in the 20th century, … Continue reading →

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Native language endangerment in BC

Posted on May 6, 2010 by Garry Peterson

Aboriginal languages in Canada are struggling to survive.  This is part of a global pattern.  About 3,000 of the world’s 6,000-7,000 languages are viewed to be endangered.  95% of languages are spoken by only 6% of the world’s people – … Continue reading →

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Mapping segregation and integration

Posted on April 26, 2010 by Garry Peterson

On radicalcartography Bill Rankin has posted some interesting and pretty maps of urban segregation in The cartography of segregation. He writes: Nearly every U.S. city is radically (and disturbingly) segregated, with stark divides of race, ethnicity, and class. I’ve been … Continue reading →

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Ecological memory of Amazonian agriculture

Posted on April 23, 2010 by Garry Peterson

I just wrote this note on Faculty of 1000 on the paper (doi:10.1073/pnas.0908925107) I mentioned the other day: Pre-Columbian agricultural landscapes, ecosystem engineers, and self-organized patchiness in Amazonia McKey D, Rostain S, Iriarte J, Glaser B, Birk JJ, Holst I, … Continue reading →

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