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Related Concept Videos

Precipitation Processes01:12

Precipitation Processes

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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...
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Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

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Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
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Global Climate Change01:50

Global Climate Change

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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.
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Precipitation Gravimetry01:03

Precipitation Gravimetry

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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...
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Steps in Outbreak Investigation01:18

Steps in Outbreak Investigation

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In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
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Prediction Intervals01:03

Prediction Intervals

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The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
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Related Experiment Video

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Using Generative Art to Convey Past and Future Climate Transitions
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Forecasting precipitation in the Arctic using probabilistic machine learning informed by causal climate drivers.

Madhurima Panja1, Dhiman Das2, Tanujit Chakraborty1,3

  • 1Department of Science and Engineering, Sorbonne University, Abu Dhabi, United Arab Emirates.

Chaos (Woodbury, N.Y.)
|November 4, 2025
PubMed
Summary

Accurate Arctic precipitation forecasting is vital for climate risk assessment. This study introduces a machine learning framework combining causal analysis and probabilistic methods for reliable predictions in vulnerable marine regions.

Related Experiment Videos

Last Updated: Jan 12, 2026

Using Generative Art to Convey Past and Future Climate Transitions
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Area of Science:

  • Climate Science
  • Machine Learning
  • Arctic Research

Background:

  • Arctic maritime environments face significant climate risks due to precipitation variability.
  • Accurate forecasting is essential for developing early warning systems in these vulnerable regions.

Purpose of the Study:

  • To develop a probabilistic machine learning framework for modeling and predicting Arctic precipitation dynamics and severity.
  • To analyze scale-dependent relationships between precipitation and atmospheric drivers.
  • To quantify causal influences among variables for improved forecasting.

Main Methods:

  • Wavelet coherence analysis to identify scale-dependent relationships between precipitation and atmospheric drivers (temperature, humidity, cloud cover, pressure).
  • Synergistic-Unique-Redundant (SUR) decomposition to assess joint causal influences and interaction effects.
  • Conformal prediction method for generating calibrated, non-parametric prediction intervals to account for uncertainty.

Main Results:

  • Identified scale-dependent relationships between key atmospheric drivers and precipitation in Arctic marine environments.
  • Quantified the causal impact of variable interactions on future precipitation dynamics.
  • Developed a data-driven forecasting model incorporating historical data and causal drivers.

Conclusions:

  • A comprehensive framework combining causal analysis and probabilistic forecasting enhances the reliability and interpretability of Arctic precipitation predictions.
  • The proposed method is crucial for climate risk assessment and early warning systems in vulnerable marine regions.