Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

What is Climate?01:16

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
Global Climate Change01:50

Global Climate Change

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.
Precipitation Gravimetry01:03

Precipitation Gravimetry

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...
Precipitation Processes01:12

Precipitation Processes

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...
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

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...
Microbes and Climate Change01:27

Microbes and Climate Change

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...

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Improved latitudinal carbon budgets from global airborne surveys.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Disparities in stereotactic radiosurgery receipt in patients with brain metastases from non-small cell lung cancer.

Journal of neuro-oncology·2026
Same author

Middle East dust as an important external driver of the Indian Ocean Dipole.

Nature communications·2026
Same author

High Phosphate and Low Protein Mediate Arterial and Cutaneous Vascular Calcification in CKD Mice.

Journal of the American Society of Nephrology : JASN·2025
Same author

Drivers of the extreme North Atlantic marine heatwave during 2023.

Nature·2025
Same author

A lupus-derived autoantibody that binds to intracellular RNA activates cGAS-mediated tumor immunity and can deliver RNA into cells.

Science signaling·2025
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
関連記事をすべて見る

関連する実験動画

Updated: Jun 27, 2026

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
09:05

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

Published on: June 24, 2019

最近の気候観測と予測の比較

Stefan Rahmstorf1, Anny Cazenave, John A Church

  • 1Potsdam Institute for Climate Impact Research, 14482 Potsdam, Germany.

Science (New York, N.Y.)
|February 3, 2007
PubMed
まとめ
この要約は機械生成です。

観測された気候の動向は,二酸化炭素,地球温暖化,海面の上昇を示しています. 最近のデータは,気候システム,特に海面が,気候モデルが予測したよりも速く変化している可能性があることを示唆しています.

さらに関連する動画

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

Using Generative Art to Convey Past and Future Climate Transitions
06:10

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

関連する実験動画

Last Updated: Jun 27, 2026

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
09:05

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

Published on: June 24, 2019

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves
06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

Using Generative Art to Convey Past and Future Climate Transitions
06:10

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

科学分野:

  • 気候科学 気候科学
  • 環境科学 環境科学
  • 地球システム科学 地球システム科学

背景:

  • 気候変動に関する政府間パネル (IPCC) の2001年評価報告書は,主要な気候モデル予測を提供した.
  • 1990年の基準となる京都議定書は,温室効果ガス排出量削減のための国際的コミットメントを確立した.

研究 の 目的:

  • 最近観測された気候変動の傾向を,IPCCの以前のモデル予測と比較する.
  • 現在の気候変動が,以前の予測と一致するか,またはそれを上回るかどうかを評価する.

主な方法:

  • 1990年以来の二酸化炭素濃度,世界の平均気温,世界の海面に関する観測データの分析.
  • これらの観測された傾向と2001年のIPCC評価報告書の予測を比較する.

主要な成果:

  • 最近観測された二酸化炭素濃度,地球全体の平均気温,地球全体の海面上昇の傾向が紹介されています.
  • 比較は,モデル予測と比較して,気候システム反応,特に海面に対する反応の加速の可能性を示しています.

結論:

  • 1990年以降の観測された気候変動は,現在の気候モデルの正確性について懸念を喚起しています.
  • 海面上昇は,以前に予測されたより急速に起こっている可能性があり,気候変動への対応が潜在的により迅速であることを示しています.