Presentation Title

The Current State of Atmospheric Gas Concentrations in California – As observed through data collected through NASA’s Student Airborne Research Program

Faculty Mentor

Lambert Doezema

Start Date

18-11-2017 2:15 PM

End Date

18-11-2017 3:15 PM

Location

BSC-Ursa Minor 68

Session

Poster 3

Type of Presentation

Poster

Subject Area

biological_agricultural_sciences

Abstract

Since the year of 2009, NASA’s Student Airborne Research Program has been annually collecting numerous air samples throughout California each summer aboard NASA airplanes. More than 2500 total samples have been collected and analyzed for over 90 prominent atmospheric gases, including hydrocarbons and halocarbons. Until recently, this large repository of data had not been examined for annual variability. But through the analysis of this data, using python and ArcGIS, both geographical and temporal trends regarding different atmospheric gases’ concentrations in California have been observed. Among a variety of findings, it was found that local hydrocarbon concentrations were heavily influenced by nearby emission sources such as dairies and oil extraction in the San Joaquin Valley.. Furthermore, although the concentrations of several halocarbons in both the planetary boundary layer (<5,000 feet) and free troposphere (>10.000 feet) has been incredibly sporadic year-to-year, they have exhibited a slight general downward trend. These results can be analyzed alongside several forms of global, national, state, and local legislation to understand the effectiveness of these regulations, and the unique situations in various geographical areas throughout California due to natural or manufactured variables.

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Nov 18th, 2:15 PM Nov 18th, 3:15 PM

The Current State of Atmospheric Gas Concentrations in California – As observed through data collected through NASA’s Student Airborne Research Program

BSC-Ursa Minor 68

Since the year of 2009, NASA’s Student Airborne Research Program has been annually collecting numerous air samples throughout California each summer aboard NASA airplanes. More than 2500 total samples have been collected and analyzed for over 90 prominent atmospheric gases, including hydrocarbons and halocarbons. Until recently, this large repository of data had not been examined for annual variability. But through the analysis of this data, using python and ArcGIS, both geographical and temporal trends regarding different atmospheric gases’ concentrations in California have been observed. Among a variety of findings, it was found that local hydrocarbon concentrations were heavily influenced by nearby emission sources such as dairies and oil extraction in the San Joaquin Valley.. Furthermore, although the concentrations of several halocarbons in both the planetary boundary layer (<5,000 feet) and free troposphere (>10.000 feet) has been incredibly sporadic year-to-year, they have exhibited a slight general downward trend. These results can be analyzed alongside several forms of global, national, state, and local legislation to understand the effectiveness of these regulations, and the unique situations in various geographical areas throughout California due to natural or manufactured variables.