Jonkers, Lukas; Laepple, Thomas; Rillo, Marina C; Shi, Xiaoxu; Dolman, Andrew M; Lohmann, Gerrit; Paul, André; Mix, Alan C; Kucera, Michal (2023): Last Glacial Maximum seawater temperature estimates based on planktonic foraminifera [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962957, In: Jonkers, L et al. (2023): Last Glacial Maximum seawater temperature estimates based on planktonic foraminifera [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.962958
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Abstract:
Estimates of Last Glacial Maximum annual mean seawater temperatures at 50 m depth. The temperature estimates are derived using the Modern Analogue Technique using the ForCenS synthesis (https://doi.org/10.1594/PANGAEA.873570; https://doi.org/10.1038/sdata.2017.109) and World Ocean Atlas 1998 temperature (http://www.nodc.noaa.gov/oc5/woa98.html) for calibration. Dissimilarity to the core top data was calculated using the square-chord distance and the temperatures are the weighted averages of the 10 closest analogues. Estimates were averaged for sites where more than a single sample is available. The data contain a unique ID for each site, a core name, longitude and latitude, temperature in degree Celsius, the temperature anomaly with respect to the World Ocean Atlas climatology, an estimate of species turnover with respect to the nearest core top sample (Bray-Curtis dissimilarity), the number of data points and the uncertainty of the temperature estimate. This uncertainty considers spatial autocorrelation in the training set. It is reduced by the square root of n whenever multiple samples were available for a site.
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 01LP1922A: PalMod II - WP3.1 Marine Paläoklimadaten zur Verifizierung von Erdsystemmodellen TP1 Synthese und TP2 Anwendungssoftware
Coverage:
Median Latitude: 8.333655 * Median Longitude: -145.681434 * South-bound Latitude: -55.135000 * West-bound Longitude: 0.831700 * North-bound Latitude: 84.029200 * East-bound Longitude: -0.367000
Date/Time Start: 1950-03-19T00:00:00 * Date/Time End: 2016-02-15T13:00:00
Minimum Elevation: -5740.0 m * Maximum Elevation: 0.0 m
Event(s):
70-506B * Latitude: 0.610200 * Longitude: -86.091300 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2711.0 m * Penetration: 20.7 m * Recovery: 20.2 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 6 cores; 20.7 m cored; 0 m drilled; 97.6 % recovery
80KB11 * Latitude: 36.500000 * Longitude: 24.300000 * Elevation: -795.0 m * Location: Aegean Sea * Campaign: CLIVAMPcruises * Basis: Ship of opportunity * Method/Device: Piston corer (PC) * Comment: No: 80KB11
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Jonkers, Lukas | |||
| 2 | Site | Site | Jonkers, Lukas | |||
| 3 | Identification | ID | Jonkers, Lukas | LGM | ||
| 4 | LONGITUDE | Longitude | Jonkers, Lukas | Geocode | ||
| 5 | LATITUDE | Latitude | Jonkers, Lukas | Geocode | ||
| 6 | Temperature, water | Temp | °C | Jonkers, Lukas | 50 m, annual mean | |
| 7 | Temperature anomaly | T anomaly | °C | Jonkers, Lukas | 50 m, annual mean | |
| 8 | Species turnover | Species turn | Jonkers, Lukas | After Bray & Curtis (1957) | ||
| 9 | Number of samples | Samples | # | Jonkers, Lukas | ||
| 10 | Temperature, uncertainty | T unc | ± | Jonkers, Lukas | 2 sd |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4529 data points
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