You must be logged in to perform this action.
You must be logged in to perform this action.
You must be logged in to perform this action.
You must be logged in to perform this action.
You must be logged in to perform this action.
No Strings Attached
-
(Complete Item Description)
- Abstract:
Chlorine monoxide (ClO) in the atmosphere as measured by the Microwave Limb Sounder (MLS) instrument on NASAs Aura satellite. MLS can simultaneously measure several trace gases and ozone-destroying chemicals in the upper troposphere and photosphere. In this series of animations we present chlorine monoxide (ClO), hydrogen chloride (HCl), nitric acid (HNO3), ozone (O3), water vapor (H2O) and temperature measurements. These are first light data taken when the MLS was operated for the first time. ClO is a temporary byproduct of the chemical reaction sequence by which chlorine from chlorofluorocarbons (CFCs) destroys ozone.
- Subject:
- Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
-
NASA GSFC Scientific Visualization Studio
No Strings Attached
-
(Complete Item Description)
- Abstract:
Key to understanding the chlorine chemistry in the polar stratosphere is the measurement of polar stratospheric clouds, chlorine monoxide, and the reservoir gas chlorine nitrate. Chlorine nitrate has been measured by CLAES and chlorine monoxide by MLS. The CLAES and MLS measurements together help to show that the polar stratospheric clouds which form in the cold Arctic stratosphere have converted most of the chlorine nitrate into the radical chlorine monoxide. In 1992, UARS measurements showed conclusively that an an Arctic ozone hole is beginning to form.
- Subject:
- Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
-
NASA GSFC Scientific Visualization Studio
No Strings Attached
-
(Complete Item Description)
- Abstract:
Hydrogen chloride (HCl) in the atmosphere as measured by the Microwave Limb Sounder (MLS) instrument on NASAs Aura satellite. MLS can simultaneously measure several trace gases and ozone-destroying chemicals in the upper troposphere and photosphere. In this series of animations we present chlorine monoxide (ClO), hydrogen chloride (HCl), nitric acid (HNO3), ozone (O3), water vapor (H2O) and temperature measurements. These are "first light" data taken when the MLS was operated for the first time. Ozone-destroying chlorine (Cl) atoms are neutralized when they bond with hydrogen (H) to form HCl.
- Subject:
- Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
-
NASA GSFC Scientific Visualization Studio
No Strings Attached
-
(Complete Item Description)
- Abstract:
The Microwave Limb Sounder (MLS) measures microwave emission from ozone and chlorine monoxide, a major ozone destroying radical. Right after UARS was launched, MLS began to measure large concentrations of chlorine monoxide over the south pole. These dramatic images clearly showed the extent of the south polar ozone destruction and confirmed the connection between man-made chlorine and the formation to the Antarctic ozone hole. Why is so much chlorine monoxide found over the Antarctic? UARS measurements have confirmed that CFCs enter the stratosphere in the tropics. As they rise above the ozone layer, ultraviolet molecules release chlorine, which then can react with methane to form hydrogen chloride. Chlorine can also react with ozone forming the radical chlorine monoxide. Chlorine monoxide then combines with the radical nitrogen dioxide to form stable chlorine nitrate. Chlorine nitrate and hydrogen chloride are called reservoir gases for the chlorine radical. These reservoir gases usually contain more than ninety percent of the chlorine in the lower stratosphere.
- Subject:
- Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
-
NASA GSFC Scientific Visualization Studio
No restrictions on your remixing, redistributing, or making derivative works.
Give credit to the author, as required.
Your remixing, redistributing, or making derivatives works comes with some
restrictions, including how it is shared.
Your redistributing comes with some restrictions. Do not remix or make
derivative works.
Copyrighted materials, available under Fair Use and the TEACH Act for US-based
educators, or other custom arrangements. Go to the resource provider to see
their individual restrictions.
