The overarching goal of PEACH is to understand the dynamics controlling exchange of waters between the continental shelf and deep ocean in the region near Cape Hatteras, North Carolina.

As part of PEACH, Spray gliders surveyed along the upper continental slope and across the outer continental shelf for more than two years during a series of missions from spring 2017 to spring 2019. Typical sampling was to a maximum depth of 500 m or to within a few meters of the seafloor in shallower water; occasional deeper sampling occurred if gliders encountered adverse currents.

APR 2017 - MAY 2019

Temperature, Salinity, Currents

  • Region: Cape Hatteras
  • PI(s): Robert E. Todd
  • Funded by: National Science Foundation

Science Quality Binned Project Data

Cleaned, post-processed and vertically binned to meet user needs

Access Options

Data are available in CF compliant NetCDF files and are also available via our ERDDAP server which offers additional file types, data subsetting, visualization options and more.


APR 2017 - MAY 2019

Project Dataset Processing

  • Averaged to 10-m vertical bins
  • Vertical binning improves ease of use
  • The 10-m bins allow for easy integration of ADCP acoustic backscatter and velocity data
  • Filtered using QC flags
  • Only high-quality data are represented in each bin

How to Cite

When using this dataset, please cite the data as:

Todd, R. E. (2020). Spray glider observations in support of PEACH [Data set]. Scripps Institution of Oceanography, Instrument Development Group. doi: 10.21238/S8SPRAY0880

Science Quality Full Resolution Data

Science quality data are also available in unbinned full-resolution format in delayed mode after each mission is complete. Binned project data are provided to meet most user needs but the underlying data for those files are also available. We refer to these as the science-quality full-resolution mission data. This data product offers the same delayed-mode quality control as the binned project files but the data have not been vertically binned.

These files may be appropriate when detailed vertical resolution is needed. These full-resolution data are more complicated to work with as each profile and observation is heterogenous in four dimensions. If higher resolution is not required, for ease of use, we encourage using the binned project data instead.


Todd, R. E., A.S. Ren (2023), Warming and lateral shift of the Gulf Stream from in situ observations since 2001. Nature Climate Change.
Mao, S., R. He, J. Bane, G. Gawarkiewicz, R.E. Todd (2023), A data-assimilative modeling investigation of Gulf Stream variability, Deep-Sea Res. Part II, 211, 105319, doi: 10.1016/j.dsr2.2023.105319.
Seim, H.E., D. Savidge, M. Andres, J. Bane, C. Edwards, G. Gawarkiewicz, R. He, R.E. Todd, M. Muglia, J. Zambon, L. Han, and S. Mao. 2022. Overview of the Processes driving Exchange At Cape Hatteras program. Oceanography; doi: 10.5670/oceanog.2022.205
Andres, M. (2021). Spatial and temporal variability of the Gulf Stream near Cape Hatteras. Journal of Geophysical Research: Oceans; doi: 10.1029/2021JC017579
Han, L., H. Seim, J. Bane, R.E. Todd, M. Muglia (2021), A shelf water cascading event near Cape Hatteras, J. Phys. Oceanogr.; doi: 10.1175/JPO-D-20-0156.1
Todd, R.E. (2020), Export of Middle Atlantic Bight shelf waters near Cape Hatteras from two years of underwater glider observations, J. Geophys. Res., 125, e2019JC016006; doi: 10.1029/2019JC016006