Your Objective

How do changing weather conditions and ocean circulation patterns affect ocean pH?

This pH data is from the subsurface (at 7m) at this location. Click next to add another dataset.

Data Tips

Datasets for this activity come from the Coastal Endurance Array Oregon Shelf Surface Buoy and Oregon Inshore Surface Mooring(see dataset section below for details about these locations and instruments).You can interact with the data by:

Questions for Thought

Orientation Questions
  • List the variables displayed in these graphs.
  • Describe the location where this data was collected.
  • Across what time period were the data collected?
  • What was the lowest pH value observed? When was it observed?
Interpretation Questions
  • Examine each data set (pH, seawater pCO2, temperature and wind direction) and explore how it changes through time. What patterns do you see for each individual data set over the course of a month?
  • Do you see any similarities or differences in how these data vary?

Background Information

Click on the images below to learn more about where and how the dataset above was collected.

Dataset Information

Download this Dataset

The data for this activity was obtained from the following Coastal Endurance instruments:

Datasets were downloaded from the OOI data portal, outliers were removed, and then hourly (mean) averages of seawater pH, pCO2, temperature, salinity and wind speeds were calculated and merged together into a single file.

See this Jupyter Notebook for details on how the data for this activity was processed.

Activity Citation: Gerken, S., Greengrove, C., Nuwer, M., Smith, S., & Lichtenwalner, C. S. (2020). Impacts of Ocean Acidification on Shellfish in the Pacific Northwest. OOI Data Labs Collection.