Trends in Atmospheric CO₂ - Mauna Loa CO₂ monthly mean data

Information Comments (0)

This dataset shows atmospheric CO2 levels measured at Mauna Loa Observatory, Hawaii, in recent years, with natural, seasonal changes removed. 

Data source: Monthly measurements (average seasonal cycle removed). Credit: NOAA, https://www.noaa.gov/.

Mauna Loa Observatory (MLO) is located on the north flank of Mauna Loa Volcano, on the Big Island of Hawaii, at an elevation of 3397 meters, or 11,135 feet above sea level. The observatory is a premier atmospheric research facility that has been continuously monitoring and collecting data related to atmospheric change since the 1950's.

The observatory protrudes through the strong marine temperature inversion layer present in the region, which separates the more polluted lower portions of the atmosphere from the much cleaner free troposphere. The undisturbed air, remote location, and minimal influences of vegetation and human activity at MLO are ideal for monitoring constituents in the atmosphere that can cause climate change. (https://gml.noaa.gov/obop/mlo/)



Dataset Identifier
atmospheric-co2-mauna-loa-monthly-mean-data
Downloads
24
Themes
Climate
Keywords
CO2, Carbon Dioxide, Emissions, Emissions
Language
English
Modified
27 March 2025 10:27
Publisher
NASA's Goddard Institute for Space Studies (GISS)
Reference
https://climate.nasa.gov/vital-signs/carbon-dioxide/
Attributions
NASA/GISS, https://www.noaa.gov/
Last checked date
26 March 2025
Country
United States
Source copyrights
https://climate.nasa.gov/faq/32/may-i-use-content-and-imagery-from-your-website-if-so-to-whom-do-i-credit-them/
Data classification
Public
Discontinued Data
No
Unit of measure
ppm (Parts Per Million)
Publisher Periodicity
Monthly
Expected next release
26 March 2026
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Last processing
27 March 2025 10:27 (metadata)
27 March 2025 10:27 (data)

DCAT

Accrual periodicity
Monthly
Temporal
1958-2023

Semantic Metadata

Attachments

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Dataset schema

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year
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
year
                       		                   
                   
                                                  Type                                                                         
date
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
month
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
month
                       		                   
                   
                                                  Type                                                                         
integer
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
average
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
average
                       		                   
                   
                                                  Type                                                                         
decimal
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
deseasonalized
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
deseasonalized
                       		                   
                   
                                                  Type                                                                         
decimal
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
ndays
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
ndays
                       		                   
                   
                                                  Type                                                                         
integer
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
sdev
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
sdev
                       		                   
                   
                                                  Type                                                                         
decimal
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   
       
unc
       
           
               
               
No description available for this field.
           
               
                   
                                                  Name (identifier)                                                                         
unc
                       		                   
                   
                                                  Type                                                                         
decimal
                       		                   
                                      
                                                  Sample                                                                         
                       		                   
               
       
   

                                
JSON Schema

                                

                                    The following JSON object is a standardized description of your dataset's schema.
                                    More about JSON schema.
                                

                                
   
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