Activities

A1: High resolution DEM and orthophoto by UAV and DGPS at Detunata site in order to choose the perfect location for instruments installations. This is the newest approach in fast and accurate topographical surveys;

A2: In situ installation of a network of thermistors and sonic anemometers with the purpose to monitor the spatial variability of thermal units of the scree and the chimney circulation variability;

A3: Subsurface air tracing experiments with the aim to identify the length and positions of chimney circulation circuits and their variability in time;

A4: Seasonal BTS monitoring and ERT surveys for mapping the thermal units expansion and contraction based on air temperatures and for choosing the location for drilling and ice reservoir variability in volume;

A5: Core drilling and installation of a vertical array of thermistors within the borehole for testing the frozen layer presence and inter-annual persistence and also for monitoring the climate variability and impact at a regional level;

A6: 14C and TCN dating. Organic remains found in ice at different depths will be dated using radiocarbon in order to estimate the age of the ice while terrestrial cosmogenic nuclides (TCN) dating will be performed on the basaltic rocks at surface for determining the age of the landform.

A7: Completing the inventory of low altitude permafrost sites from temperate regions internationally reported along with their thermal, topographical and permafrost related parameters. Besides literature data review, one or two field campaigns will be performed to make DEMs, to collect samples and to make field observations;

A8: Identifying the response to past climate variability of the trees from LAP sites (from the dendrologic samples repository) in order to get insights on the inter-annual fluctuations of the intensity of the chimney circulation;

A9: Mapping and testing other potential LAP sites from Romania. This activity is to test the hypothesis that Detunata is not the only cold scree with possible low altitude permafrost in Romania but they are rather widespread but scarcely studied.