https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.9 2026-05-13T10:52:13.516Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/dd316647-9043-40c3-9329-f22f9215fefa ATMOSPHERIC OZONE Date=2021-02-26 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=ATMOSPHERIC OZONE [dd316647-9043-40c3-9329-f22f9215fefa,84479] - TOTAL OZONE [b9107ec3-c777-4e71-9046-55bd7ed57ef0,560875] Date=2021-02-26 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=ATMOSPHERIC OZONE [dd316647-9043-40c3-9329-f22f9215fefa,84479] - OZONE SURFACE [e00bfcb8-8968-400d-af2e-86a288f3443f,560874] Date=2021-02-26 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=ATMOSPHERIC OZONE [dd316647-9043-40c3-9329-f22f9215fefa,84479] - OZONE PROFILES [959878c8-b02a-4bb8-ad10-96ae31ebe59f,560873] Date=2021-02-26 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=Ozone (O3) is a molecule that consists of three oxygen atoms bonded together. The ozone layer in the stratosphere absorbs UV radiation and creates a warm layer of air high in the stratosphere. Ozone that is present in the troposphere is mostly a result of anthropogenic pollution and therefore higher concentrations are found in urban areas. Ozone is involved with NOx in the photochemical production of many of the constituents of pollution environments (see nitrogen oxides and hydroxyl definitions) [Chemical and Engineering News; v72; 6-7; 1994.] [Aviation Week and Space Technology; v140; 20-21; 1994.] New Value=Atmospheric Ozone is one of the most important trace gases in our atmosphere that both benefits and harms life on Earth. High ground-level ozone amounts contribute to poor air quality, adversely affecting human health, agricultural productivity, and forested ecosystems. Ozone absorbs infrared radiation, and is most potent as a greenhouse gas in the cold upper troposphere located 8–15 km above the surface. In the stratosphere, between approximately 15 and 50 km above the Earth’s surface, a layer rich in ozone serves as a “sunscreen” for the world by shielding the Earth’s surface from harmful ultraviolet radiation. This absorption of solar energy also affects atmospheric circulation patterns and thus influences weather around the globe. Moreover, throughout the atmosphere, ozone is the key ingredient that initiates chemical cleansing of the atmosphere of various pollutants, such as carbon monoxide and methane, among others, which could otherwise accumulate to harmful levels or exert a stronger influence on climate. Therefore, changes to ozone anywhere in the atmosphere can have major impacts on the Earth. Date=2021-02-26 User Id=tstevens Entity=PrefLabel Operation=UPDATE Field=text System Note=update PrefLabel Old Value=OZONE New Value=ATMOSPHERIC OZONE Date=2021-02-26 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=Atmospheric and Air Chemistry Glossary from the Sam Houston State University. "http://www.shsu.edu/~chemistry/Glossary/glos.html" New Value=https://www.ametsoc.org/index.cfm/ams/about-ams/ams-statements/statements-of-the-ams-in-force/atmospheric-ozone1/ Atmospheric Ozone is one of the most important trace gases in our atmosphere that both benefits and harms life on Earth. High ground-level ozone amounts contribute to poor air quality, adversely affecting human health, agricultural productivity, and forested ecosystems. Ozone absorbs infrared radiation, and is most potent as a greenhouse gas in the cold upper troposphere located 8–15 km above the surface. In the stratosphere, between approximately 15 and 50 km above the Earth’s surface, a layer rich in ozone serves as a “sunscreen” for the world by shielding the Earth’s surface from harmful ultraviolet radiation. This absorption of solar energy also affects atmospheric circulation patterns and thus influences weather around the globe. Moreover, throughout the atmosphere, ozone is the key ingredient that initiates chemical cleansing of the atmosphere of various pollutants, such as carbon monoxide and methane, among others, which could otherwise accumulate to harmful levels or exert a stronger influence on climate. Therefore, changes to ozone anywhere in the atmosphere can have major impacts on the Earth. 2021-02-26 09:37:54.0