The GMD website may be unavailable from
Tuesday, June 27, 5:00 PM through (approximately) noon on Wednesday, June 28 MDT
due to building maintenance.
ESRL Global Monitoring Division Review
Boulder, Colorado — April 3-5, 2013
The six baseline observatories of GMD.
First row: Barrow, Alaska and Summit, Greenland; Second row: Trinidad Head, California and Mauna Loa Hawaii; Third row: American Samoa and South Pole