Heat flow data at station H1602 during Maria S. Merian cruise MSM57/1

In situ sediment temperature and sediment thermal conductivity measurements were made with the GEOMAR heat flow probe (6m total length) during Expedition MSM57 on board the R/V MARIA S. MERIAN at the Svalbard margin. Two sub-regions were visited: Vestnesa Ridge and Svyatogor Ridge. During each deployment sequence several individual stations were visited as detailed in Bohrmann et al., (2017).

Raw-data have the extension ".TOB" and are tab-delimited ascii files with data labels and units in top rows. Note: Temperatures in the raw files are not corrected for sensor Offsets from reference. Tose Offsets are included in the individual penetration files.

Within each deployment sequence, the total record is split into individual penetration files, one penetration file per station visited. Naming convention is as follows: H1602P01.pen.dat for penetration 1 of deployment sequence H1602. Each Penetration file has complete header information on the measurement and performance. Note: temperatures are reported in values of mili-degrees Celsius).

From the individual measured temperature records, thermal gradients and in situ thermal conductivity values are derived using the technique described in Villinger and Davis (1986). We report here our initial results as well. For each penetration, a results-file is included with in situ temperature and conductivity reported as function of Depth. Naming convention of the results files is as follows: H1602_P01_results.dat with "H1602" as deployment sequence, "P01" as penetration number.

If the heat pulse was not generated, only the decay of frictional heating was used to define in situ temperature. Thermal conductivity was assumed to be constant for all depths in those instances. Here, we used a value of 1.25 for the assumed thermal conductivity.

Initial results and further details of the deployments can be found in the cruise report by Bohrmann et al. (2017).