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What is Weather?01:07

What is Weather?

Overview
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.
Volatilization01:10

Volatilization

Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
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...

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Updated: Jun 18, 2026

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions

Published on: June 12, 2016

火星の変動と気候の歴史

B M Jakosky1, R J Phillips

  • 1Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392, USA. bruce.jakosky@lasp.colorado.edu

Nature
|July 13, 2001
PubMed
まとめ
この要約は機械生成です。

火星 火星 火星 火星

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Last Updated: Jun 18, 2026

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
08:18

Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions

Published on: June 12, 2016

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

Reconstructing Terrestrial Paleoclimate and Paleoecology with Fossil Leaves Using Digital Leaf Physiognomy and Leaf Mass Per Area
10:14

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科学分野:

  • 惑星科学は惑星科学である.
  • 地質学 地質学 地質学
  • 大気科学 大気科学

背景:

  • 火星の気候と揮発性物質の在庫は,地質的な時間尺度で著しく変化しています.
  • 気候変動の証拠は,内部から大気まで,様々な惑星領域で観察されています.

研究 の 目的:

  • 火星の気候の進化に関する統一された理解に多様な観測を合成する.
  • 火星の気候史の理解を導く重要な観測的制約を特定する.

主な方法:

  • 内部深部,地殻組成,地表形態学,大気組成,上層大気と太陽風の相互作用からのデータの統合.
  • 一貫した気候進化の物語を構築するために,異なるデータセットの分析.

主要な成果:

  • 火星の気候の進化の包括的な見方を再構築した.
  • 惑星の気候モデルを最も制約する重要な観測を強調した.

結論:

  • 火星の気候は,その歴史を通じて,実質的な変化を経験してきました.
  • 惑星の気候の動態を理解するためには,多学科的なアプローチが不可欠です.