Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap
Bibliographic record
Abstract
Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). The objective was to find out if and how the increasing regional temperatures have impacted the stratigraphy and densification rates of these ice caps, and particularly since the 1990s when Arctic warming accelerated. This was accomplished by analyzing and comparing recent (2000s) and earlier (1990s) ice-core density and stratigraphic measurements from these two ice caps, and also regional temperature data from Svalbard and the eastern Canadian Arctic over the period 1995-2013. Data over the amount and thickness of ice layers in the ice cores are also used and compared with the density development. A decrease in elevation for the formation of infiltration ice layers at Lomonsovfonna is concluded as well as a strong increase in temperature where the winter temperatures increase the most. In the ice cores it ́s also seen that each core has certain spatial variability when it comes to the distribution of infiltration ice.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".