GMD News Items 2011
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NOAA greenhouse gas index continues climbing
9th Nov, 2011
NOAA’s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many greenhouse gases such as carbon dioxide and methane, shows a continued steady upward trend that began with the Industrial Revolution of the 1880s. -
NOAA, NASA: Significant ozone hole remains over Antarctica
20th Oct, 2011
The Antarctic ozone hole, which yawns wide every Southern Hemisphere spring, reached its annual peak on September 12, stretching 10.05 million square miles, the ninth largest on record. -
South Pole ozone hole update
18th Oct, 2011 (PDF Available)
Scientists from NOAA Earth System Research Laboratory (ESRL), Global Monitoring Division, are closely watching the development of the Antarctic ozone hole from the South Pole observatory. -
Three NOAA/ESRL AirCore samplers deployed in back-to-back balloon launches
19th Sep, 2011 (PDF Available)
On September 10, 2011, NOAA and CIRES scientists and engineers teamed up with the non-profit group Edge of Space Sciences (EOSS) to launch three AirCore samplers of varying sizes and material coatings. The resulting data set shows excellent agreement between the three samples for CO2, CH4, and CO, and also characterizes some regions of atmospheric variability. -
Unmanned Aircraft Study of Stratospheric Water Vapor & Ozone, and Climate
16th Sep, 2011 (PDF Available)
Five NOAA/ESRL and five CIRES cooperative institute scientists will operate four atmospheric instruments including two ozone sensors, one water vapor sensor, and one greenhouse gases sensor for methane, nitrous oxide, and sulfur hexafluoride on the NASA Global Hawk Unmanned Aircraft Systems (UAS) to study the earth’s Tropical Tropopause Layer -
Fifth and Final Pole-to-Pole Aircraft Study of Greenhouse Gases is Underway
8th Aug, 2011 (PDF Available)
Six NOAA and twelve CIRES cooperative institute employees from the NOAA Global Monitoring and Chemical Sciences Divisions of ESRL are involved in the fifth and final HIAPER Pole-to-Pole Aircraft Study of Greenhouse Gases and Black Carbon (HIPPO/5) survey beginning on August 9, 2011, and ending on September 9. -
Fourth Pole-to-Pole Airborne Study of Greenhouse Gases and Black Carbon
6th Jan, 2011 (PDF Available)
The fourth, month-long, HIAPER Pole-to-Pole Observations of Greenhouse Gases and Black Carbon (HIPPO/4) aircraft survey will take place from 14 June to 15 July utilizing 12 flights to cover a total distance of 53,250 km on NCAR’s HIAPER or GV manned aircraft. -
Major Breakthrough by NOAA-led Team on Removal of Air Pollution
6th Jan, 2011 01:00:00 PM PST (PDF Available)
An international, NOAA-led research team has made a major breakthrough in understanding the atmosphere’s ability to cleanse itself of air pollutants and some greenhouse gases. Earlier studies were inconclusive on how sensitive the hydroxyl (OH) radical that controls the self-cleaning power of the atmosphere was to environmental changes.