Presentation Type
Poster
Start Date
5-8-2024 11:00 AM
End Date
5-8-2024 1:00 PM
Subjects
Groundwater
Advisor
Scott Jasechko
Student Level
Undergraduate
Abstract
Groundwater is water absorbed by the soil and earth beneath the surface, saturating it, and the groundwater level is the level at which the saturation zone ends near the surface. Despite groundwater’s critical importance, only a few studies have compared groundwater level changes from in-situ measurements made in different aquifers on diverse continents. Here, I analyzed groundwater level time series to characterize how groundwater levels have changed over time in different places. I used Python and Jupyter Notebook along with the pandas and matplotlib modules to graph groundwater level changes over time. The data analyzed here derive from a Hydroshare data repository created by Scott Jasechko (https://www.hydroshare.org). To identify long-term records, I graphed records with ninety or 90 or more measurements. Overall, the results of the study show that, in most of the locations, groundwater levels have decreased over time, with a smaller number of wells showing evidence of rising groundwater levels. My findings highlight that groundwater is being used up faster than it can be recharged in most places.
Creative Commons License or Rights Statement
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License.
Persistent Identifier
https://archives.pdx.edu/ds/psu/41877
Included in
Trends of Groundwater Levels Over Time
Groundwater is water absorbed by the soil and earth beneath the surface, saturating it, and the groundwater level is the level at which the saturation zone ends near the surface. Despite groundwater’s critical importance, only a few studies have compared groundwater level changes from in-situ measurements made in different aquifers on diverse continents. Here, I analyzed groundwater level time series to characterize how groundwater levels have changed over time in different places. I used Python and Jupyter Notebook along with the pandas and matplotlib modules to graph groundwater level changes over time. The data analyzed here derive from a Hydroshare data repository created by Scott Jasechko (https://www.hydroshare.org). To identify long-term records, I graphed records with ninety or 90 or more measurements. Overall, the results of the study show that, in most of the locations, groundwater levels have decreased over time, with a smaller number of wells showing evidence of rising groundwater levels. My findings highlight that groundwater is being used up faster than it can be recharged in most places.