Related Experiment Video
Updated: Apr 19, 2026
06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
1.6K
Resolving the Antarctic contribution to sea-level rise: a hierarchical modelling framework
Andrew Zammit-Mangion1, Jonathan Rougier2, Jonathan Bamber3
1School of Geographical Sciences, University of Bristol Bristol, BS8 1SS, UK ; Department of Mathematics, University of Bristol Bristol, BS8 1TW, UK ; School of Geographical Sciences, University of Bristol Bristol, BS8 1SS, UK.
Environmetrics
|December 16, 2014
Summary
This study introduces a novel statistical method to estimate Antarctica's sea-level rise contribution. The approach combines physical insights with spatial statistics, providing reliable probability distributions for key processes.
Area of Science:
- Climate Science
- Glaciology
- Statistical Modeling
Background:
- Estimating Antarctica's sea-level rise contribution is challenging due to complex ice dynamics and limited observational data.
- Existing methods often rely on strong assumptions or simplified deterministic models.
Purpose of the Study:
- To develop a new statistical approach for estimating Antarctic sea-level rise contribution.
- To incorporate physical insights into a statistical framework without oversimplification.
Main Methods:
- Utilized descriptive aspects of physical models in a statistical analysis.
- Employed stochastic partial differential equations and Gaussian Markov random fields.
- Applied Bayesian hierarchical modeling to naturally incorporate uncertainty.
Main Results:
- Generated probability distributions for processes influencing observed data and sea-level rise.
- Provided credible intervals for all estimated quantities.
- Results corroborated findings from a statistically independent method.
Conclusions:
- The new statistical approach offers a robust method for assessing Antarctic sea-level rise.
- This Bayesian hierarchical model effectively quantifies uncertainty in estimations.
- The findings align with existing independent assessments, enhancing confidence in the results.
Related Concept Videos
01:50Global Climate Change
29.9K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
29.9K
01:26Influence of Earth's Curvature and Atmospheric Refraction on Leveling
1.3K
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
1.3K
01:03Precipitation Gravimetry
16.5K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
16.5K
01:27Microbes and Climate Change
73
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
73
01:25Methods of Obtaining Topography
520
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
520
01:12Precipitation Processes
6.6K
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
6.6K