関連する実験動画
Updated: Feb 7, 2026

06:10
Using Generative Art to Convey Past and Future Climate Transitions
Published on: March 31, 2023
1.5K
著者修正: 南極の未来を決める
S R Rintoul1,2,3, S L Chown4, R M DeConto5
1CSIRO Oceans & Atmosphere, Hobart, Tasmania, Australia. Steve.Rintoul@csiro.au.
Nature
|July 19, 2018
まとめ
海の酸性化により 南極の表面水中の水素イオン濃度が増加しています この研究では 2070年までに海洋生態系に影響を与える 50%の酸性増加が予測されていることが示されています
科学分野:
- 環境科学
- 海洋学
- 気候変動に関する研究
背景:
- 南緯60度以南の地表水は 重要な化学変化を経験しています
- 海洋酸性化は世界的な海洋生態系にとって 懸念が高まっています
研究 の 目的:
- 南極の表面水中のpHと水素イオン濃度の予測変化を定量化する.
- これらの変化が海洋環境に及ぼす影響を評価する.
主な方法:
- 南緯60度以南の地表水のpH値の分析
- pHの変化による水素イオン濃度の変化の計算
- 2017年から2070年までの将来の変化の予測
主要な成果:
- 2017年から2070年の間に60°S以南の地表水域ではpHが0.2単位低下すると予測されています.
- このpHの変化は,工業化以前の時代から水素イオン濃度が50%増加したのに相当します.
- この発見は 南極地域の海洋酸性化の 顕著な傾向を示しています
結論:
- 南極の表面水は 急激に酸性化しています
- 予想される水素イオンの増加は 海洋生物に重大な脅威をもたらします
- 海洋の酸性化を緩和するには 緊急の気候変動対策が必要です
関連する概念動画
Milgram's Obedience to Authority
7.4K
Obedience to authority is classically demonstrated in a more famous series of social psychology experiments performed by Stanley Milgram. He was a social psychology professor at Yale who was influenced by the trial of Adolf Eichmann, a Nazi war criminal. Eichmann’s defense for the atrocities he committed was that he was “just following orders.”
7.4K
Choosing Between z and t Distribution
3.7K
The z and the Student t distribution estimate the population mean using the sample mean and standard deviation. However, to decide which distribution to use for a calculation, one needs to determine the sample size, the nature of the distribution, and whether the population standard deviation is known. If the population standard deviation is known and the population is normally distributed, or if the sample size is greater than 30, the z distribution is preferred. The Student t distribution is...
3.7K
Distance Corrections
297
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
297
Power Factor Correction
545
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
545
NMR Spectrometers: Resolution and Error Correction
1.1K
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
1.1K
Osmoregulation in Insects
17.6K
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
17.6K

