Atmospheric methane and carbon dioxide and surface water methane during SWERUS-C3

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Contact information

Email Address
brett.thornton@geo.su.se
Postal address

Brett Thornton
Department of Geological Sciences
Stockholm University
SE-106 91 Stockholm
Sweden

Meta data

GCMD Science keywords

Earth science > Atmosphere > Atmospheric chemistry > Carbon and hydrocarbon compounds > Methane

GCMD Location

Geographic Region > Arctic

Status

Completed

Data Set Language

English

Project

SWERUS-C3

Description

This datapackage contains atmospheric observations of CH₄, CO₂, and dissolved CH₄ in surface waters, during leg 1 of the SWERUS-C3 project in the Arctic Ocean in July and August 2014. Datasets were collected onboard the Swedish icebreaker Oden. This datapackage consists of three CSV files:

1. SWERUS_leg1_air_GHG_temporal.csv

Calibrated CH₄, CO₂ in ppm, measured in the air at 4, 9, 15, 20, and 35 m heights above sea surface. Other variables: standard deviation of CH₄ and CO₂ in ppm, GPS (DOY, latitude, longitude), valve position (inlet height, see below). DOY 192–229. This atmospheric data has been filtered for windspeed, wind direction, and CO₂ > 450 ppm (filters are designed to remove possible ship influence from data).

2. SWERUS_leg1_water_GHG_temporal.csv

Calibrated dissolved CH₄ in ppm, data measured from an intake in the hull of Oden at ca. 8 m depth. Other variables: GPS (latitude, longitude, DOY), seawater salinity, seawater temperature, seawater pH, 10 m windspeed (corrected from measurement height). DOY 189–222.

3. SWERUS_leg1_air_water_GHG_spatial.csv

Includes coincident air and water measurements from days 192–222. Same measurements as above BUT all measurements have been gridded and averaged to 0.001 degree resolution (a spatial normalization process which accounts for varying ship speed during the cruise).

Publisher

Bolin Centre for Climate Research, Stockholm University

Begin Date

2014-07-08

End Date

2014-08-17

Dataset Version

1.0

Use Limitations

None

Access Constraints

Free

Published

2016-06-13 14:23:57