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.
Global Monitoring Division
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Mauna Loa, Hawaii -
Mauna Loa CO2 -
Barrow, Alaska -
American Samoa -
Picture from Water Vapor balloon flight, 20km altitude -
Mauna Loa Apparent Solar Transmission -
Global Means of various Halogenated compounds -
Surface Radiation Measurement Instruments near Penn State -
Trinidad Head, California -
South Pole Ozone Hole Profile -
The Atmospheric Research Observatory at South Pole -
Summit, Greenland -
CO2 Weather computed by Carbontracker Model
ESRL's Global Monitoring Division conducts sustained observations and
research related to global distributions, trends, sources and sinks of
atmospheric constituents that are capable of forcing change in the climate
of the Earth. This research will advance climate projections and provide
scientific policy-relevant, decision support information to enhance
society's ability to plan and respond.
Read More...
ESRL's Global Monitoring Division conducts research on the depletion
of the global stratospheric ozone layer and Antarctic ozone hole through
global surface-based monitoring of total-column ozone, ultraviolet radiation,
and ozone-depleting gases, including those regulated by the Montreal Protocol.
Continued surveillance is necessary in order to verify the expected
recovery of the ozone layer.
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ESRL's Global Monitoring Division monitors levels of air quality
elements such as tropospheric ozone, carbon monoxide and aerosol
particles in non-source regions which may be affected by long range
transport from distant sources of industrial pollution. This large-scale
transport affects baseline air quality which must be monitored
in order to determine the importance of regional sources that may impact
the environment and public health.
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2017 Global Monitoring Annual Conference
December 19, 2016
NOAA's Earth System Research Laboratory (ESRL), Global Monitoring Division, will hold the 45th Global Monitoring Annual Conference on Tuesday and Wednesday, May 23rd and 24th, 2017, in Boulder, Colorado.
Read More...Observatories
![[Barrow]](/gmd/images/th_brw.jpg)
![[Trinidad Head]](/gmd/images/th_thd.jpg)
![[Mauna Loa]](/gmd/images/th_mlo.jpg)
![[American Samoa]](/gmd/images/th_smo.jpg)
![[South Pole]](/gmd/images/th_spo.jpg)
![[Summit]](/gmd/images/th_sum.jpg)
News and Highlights
Seminar: June 23, 2017
The Power of Long-term Ground-based Downwelling Spectral Infrared Radiance Observations
Study published on reduced lifetime for a future strong greenhouse gas
May 2, 2017
NOAA/ESRL scientists and their colleagues at the University of East Anglia, Utrecht University, and NCAR calculated an atmospheric lifetime of the trace gas, sulfur hexafluoride (SF6), based on measurements in the polar stratospheric vortex and modeled transport into the stratosphere.
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Fifty years ago, a historic balloon launch that changed the way we see the ozone layer
April 27, 2017
What started out as a modest research project driven by scientific curiosity provided the agency that would later become NOAA with some of the first insights into how ozone was distributed in the atmosphere.
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Study: Global plant growth surging alongside carbon dioxide
April 20, 2017
A trace gas present in the atmosphere in miniscule amounts is helping scientists answer one of the biggest questions out there: Has plant growth increased alongside rising levels of carbon dioxide in the atmosphere?
Watch a weather balloon explode 100,000 feet high in the atmosphere
April 14, 2017
Patrick Cullis of the GMD Ozone and Water Vapor Group, created a video of a weather balloon bursting, posted at Washington Post.
NOAA study shows as US drilling surged, methane emissions didn’t
March 24, 2017
A new NOAA study shows that methane emissions from the United States did not grow significantly from 2000 to 2013 and are not likely to have been an important driver of the increase in atmospheric methane levels observed worldwide after 2007, as other studies have suggested.
Carbon dioxide levels rose at record pace for 2nd straight year
March 13, 2017
Carbon dioxide levels measured at NOAA’s Mauna Loa Baseline Atmospheric Observatory rose by 3 parts per million to 405.1 parts per million (ppm) in 2016, an increase that matched the record jump observed in 2015.
Photo: Last flight from the South Pole
February 23, 2017
As winter closes in, flights to the international research compound are suspended for the long Antarctic winter.
Unprecedented Arctic weather has scientists on edge
February 17, 2017
As station chief at NOAA’s Point Barrow, Alaska, observatory, Bryan Thomas works close to the edge of the Arctic Ocean. What he saw from his office in early February, looking north toward the horizon, was troubling.
Research Groups
Global Greenhouse Gas Reference Network
The GGGRN makes measurements of the spatial and temporal distributions of greenhouse gases and provides essential constraints to our understanding of the global carbon cycle.
Halocarbons and other Trace Species
The HATS group quantifies the distributions and magnitudes of the sources and sinks for important ozone-depleting and greenhouse gases.
Aerosols
The goals of this program are to characterize means, variability, and trends of climate-forcing properties of different types of aerosols.
Global Radiation
Activities involve empirical and theoretical research of the Earth's surface radiation budget.
Ozone and Water Vapor
Research on the nature and causes of the depletion of the stratospheric ozone layer and the role of ozone and water vapor in forcing climate change.
