Dataset DOI: 10.5061/dryad.vdncjsz5g

Description of the data and file structure

GENERAL INFORMATION

1. Title of Dataset: Sea level elevation and atmospheric carbon dioxide concentration data for 220 years

2. Author Information

A. Principal Investigator Contact Information

	Name: R. Eugene Turner

	Institution: Louisiana State University

	Address: Baton Rouge, Louisiana, USA, 70803

	Email: euturne@lsu.edu

3. Date of data collection (single date, range, approximate date) : 1700 to 2023

4. Geographic location of data collection: 14 tide gage stations: 1) Sheerness, England; 2) Brest, France; 3) Maassluis, Netherlands; 4) Cascais, Portugal; 5) Boston, Massachusetts, USA, 6) New York City, USA; 7) San Francisco, California, USA; 8) Honolulu, Hawaii, USA; 9) Sydney, Australia, 10) Fremantle, Australia, Key West, Florida, Cedar Key Florida; Liverpool, England; and Amsterdam, Netherlands.

5. Information about funding sources that supported the collection of the data: NSF Award Number (FAIN) 2103843: Large-scale CoPe Hub: Rising Voices, Changing Coasts: The National Indigenous and Earth Sciences Convergence Hub.

SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: none

2. Links to publications that cite or use the data: Turner, R.E. 2025. Century-long linear rise in sea level/atmospheric CO2 ratios. Environmental Research Communications(accepted)

3. Links to other publicly accessible locations of the data:https://psmsl.org/ and https://ourworldindata.org/grapher/sea-level

4. Links/relationships to ancillary data sets: none

5. Was the data derived from another source? YES

6. Recommended citation for this dataset: Turner, R. E. 2025. The century-long linear rise in sea level/atmospheric CO2 ratios.

DATA & FILE OVERVIEW

1. File List:

worksheet 'Readme': basic information on authors, data abstract, research address

worksheet 'units':

worksheet DATA

2. Relationship between files, if important: none

3. Additional related data collected that was not included in the current data package: none

4. Are there multiple versions of the dataset? NO

METHODOLOGICAL INFORMATION

1. Description of methods used for the collection/generation of data:

Archival records search for records of the annual average sea level at coastal tide gages and atmospheric CO2 concentration

2. Methods for processing the data:

Simple linear regressions of year versus mm/CO2

3. Instrument- or software-specific information needed to interpret the data:

<include full name and version of software, and any necessary packages or libraries needed to run scripts>

none

4. Standards and calibration information, if appropriate:

Archival records search

5. Environmental/experimental conditions: none

6. Describe any quality-assurance procedures performed on the data: none

7. People involved with sample collection, processing, analysis, and/or submission: RE Turner

DATA-SPECIFIC INFORMATION FOR: unfreezed_dryad_slr_data_set.xlsx

separate worksheet for data labeled 'data.'

1. Number of variables: 5

2. Number of cases/rows: maximum of 227 rows of data for 1 worksheet

3. Variable List:

• YEAR

• sea level

• CO2 conc.

• station number

4. Missing data codes:

n/a

5. Specialized formats or other abbreviations used:

None