The dataset comprises of GPS site data, bathymetric data from Lago Pato, a small lake basin at 51.3003 S, 72.6786 W and approx 33 m a.s.l., water chemistry collected from lakes in the region made in 2007 and precipitation data generated from the ERA-INTERIM model for Lago Pato. The data are used to help constrain glacier dynamics and lake level change in the TdP and Ultima Esperanza region over the last approx 30,000 cal a BP (30 ka).
This project was funded by the Natural Environment Research Council (NERC) through the British Antarctic Survey (BAS) and an UGent BOF bilateral collaboration project. RMcC was supported by Programa Regional R17A10002 and R20F0002 (PATSER) ANID. We gratefully acknowledge the University of Magallanes (UMAG) and the University of Santiago (Carolina Diaz) for assistance with fieldwork; the NERC/SUERC AMS Radiocarbon Facility for providing initial range-finder radiocarbon dates; the NERC Isotope Geosciences Laboratory (NIGL, now National Environmental Isotope Facility, NEIF, at the British Geological Survey) and Melanie Lang for stable carbon isotope analysis; Aberystwyth University (David Kelly), Durham University (Neil Tunstall and Christopher Longley) and Edinburgh University (Chris Hayward) for use of their core scanning and microprobe facilities and technical support.
Last Glacial Maximum, Patagonia, Southern Hemisphere Westerly Winds, glaciation, lake level changes, palaeoclimate, palaeolimnology
Roberts, S., Sterken, M., Heirman, K., Van Wichelen, J., Diaz, C., Vyverman, W., & Verleyen, E. (2022). Bathymetric and lake chemistry data for Lago Pato,Torres del Paine National Park, Chile (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/d55d7619-3e07-41b0-929e-c9da0a4b61af
|Access Constraints:||No restrictions apply.|
|Use Constraints:||This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.|
|ISO Topic Categories:||
|Name||UK Polar Data Centre|
|Organisation||British Antarctic Survey|
|Name||Dr Stephen J Roberts|
|Role(s)||Investigator, Technical Contact|
|Organisation||British Antarctic Survey|
|Organisation||Geological Survey of the Netherlands|
|Name||Jeroen Van Wichelen|
|Organisation||Research Institute for Nature and Forest|
|Organisation||Universidad de Santiago de Chile|
|Name||Dr Wim Vyverman|
|Name||Dr Elie Verleyen|
|Reference:||Roberts, S.J., McCulloch, R.D.M., Emmings, J., et al. (2022) Late glacial and Holocene palaeolake history of the Ultima Esperanza region of Southern Patagonia. Frontiers in Earth Science, 10. https://doi.org/10.3389/feart.2022.813396|
|Quality:||The WSI600 Sonde was calibrated according to manufacturer's instructions prior to use|
|Lineage:||GPS data were collected using Trimble differential GPS, accurate to 0.1 m with values quoted as ±2-sigma (95% error). Other elevations were determined from Google Earth, and are on average, 6.7±5.9 m (2-sigma) higher than the geoid-corrected dGPS field measurements, hence, we assigned ±10 m errors.
Lake water chemistry (pH, conductivity, temperature, dissolved oxygen) were measured in and around Lago Pato and several nearby lakes with a YSI600 Sonde. Light penetration was measured with a Secchi disc and water samples were taken at one metre intervals in the water column of Lago Pato. Data from lakes in Patagonia was collected from a near shore sampling point.
Modelled annual and seasonal precipitation for 1979 to 2016 at Lago Pato was generated from the ERA-INTERIM dataset.
The dataset is arranged as follows
Lake water chemistry Patagonia 2007.csv lake water chemistry dataset
LP Bathymetry data.csv Lago Pato bathymetry dataset
LP GPS data Lago Pato site and lake GPS data
Modelled precipitation folder containing modelled annual, summer (December, January, February; DJF) and winter (June, July, August) precipitation data for the Lago Pato latitude and longitude
|Detailed Location||Lago Pato, Torres del Paine National Park, Patagonia|
|Data Storage:||The dataset is arranged as follows
Lake_water_chemistry_Patagonia_2007.csv - lake water chemistry dataset
LP_Bathymetry_data.csv - Lago Pato bathymetry dataset
LP_GPS_data - Lago Pato site and lake GPS data
Modelled_precipitation folder containing modelled annual, summer (December, January, February; DJF) and winter (June, July, August) precipitation data for the Lago Pato latitude and longitude