Local Weather

Current conditions for Troutdale as of Wed, 01 Apr 2015 12:53 pm PDT

Mostly Cloudy

53°

High: 56° Low: 40°

Mostly Cloudy

Feels like: 53 °F

Barometer: 30.31 in and falling

Humidity: 61%

Visibility: 10 mi

Dewpoint: 40 °F

Wind: 3 mph

Sunrise: 6:50 am

Sunset: 7:36 pm

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Arctic winter 2010/2011 at the brink of an ozone hole

source: GRL

The Arctic stratospheric winter of 2010/2011 was one of the coldest on record with a large loss of stratospheric ozone. Observations of temperature, ozone, nitric acid, water vapor, nitrous oxide, chlorine nitrate and chlorine monoxide from the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT are compared to calculations with a chemical […]