Source: Journal of Geophysical Research: Planets Io—Jupiter’s third-largest moon—is constantly kneaded and deformed by the gravitational pull of Jupiter and two of its other moons, […]
Tag: Eos
One Billion Years Ago, Northern Minnesota Nearly Split Apart. Now, Two Companies Want to Mine the Aftermath.
Want updates from a trusted source about U.S. mining developments? Preference Eos in your searches! Go to Google In April, President Donald Trump officially revoked […]
Trump’s Science Adviser Wants to Overhaul “Increasingly Calcified” U.S. Science Enterprise While Science Funding Lags
body {background-color: #D2D1D5;} Research & Developments is a blog for brief updates that provide context for the flurry of news regarding law and policy changes that […]
Small Faults Add to Seattle’s Quake Story
The winter earthquake of 923 or early 924 CE remains the benchmark event in the Seattle Fault Zone. It lifted shorelines around Puget Sound and […]
Scientists Might Have Detected the First Moon Outside Our Solar System… It Just Depends How You Define “Moon.”
body {background-color: #D2D1D5;} Research & Developments is a blog for brief updates that provide context for the flurry of news that impacts science and scientists today. […]
Why Healthy Soils Matter More Than Ever
Editors’ Vox is a blog from AGU’s Publications Department. Protecting soil health is essential to achieving the United Nations Sustainable Development Goals (SDGs) since it […]
Stratospheric Aerosol Injection Might Make Flights Smoother
https://serc.carleton.edu/teachearth/eos-activities.html?url=EOSURL Stomach-churning dips and swerves can be the most unpleasant—and dangerous—part of flying. To travelers’ chagrin, climate change has already begun to make such aircraft […]
太阳风暴如何影响地球天气？一项新研究探讨其作用机制
Source: Geophysical Research Letters This is an authorized translation of an Eos article. 本文是Eos文章的授权翻译。 影响地球气候和天气模式的因素多种多样，从人为温室气体排放到火山活动，再到太阳活动的变化，不一而足。 随着太阳经历短期和长期的活动变化，包括众所周知的11年太阳黑子周期，太阳向地球大气层输送着不同量的总太阳能量。大量证据表明，太阳活动的长期变化与降雨量、地表温度和其他气候指标的变化之间存在相关性。然而，这些大气变量相互交织，难以辨别其背后的物理机制。 Raeder 报告了首个明确的证据，表明地磁暴，即由太阳活动爆发引起的持续数小时的地球磁层扰动，会影响地球上的天气状况。这些发现有助于科学家缩小太阳活动变化影响天气的可能机制范围。 该分析整合了67年来北美地区逐小时记录的地磁暴强度数据，以及同期逐小时记录的大气数据。后者的数据集得益于大气建模技术的进步，是近期才得以获取的。 数据显示，地磁暴会在数小时到数天内显著影响大气压力、温度和降水。地磁暴的强度似乎与其大气影响的严重程度密切相关。此外，这些影响还会因地区和季节而异。例如，冬季地磁暴似乎会提升美国西海岸的气温，而美国其他大部分地区的气温则会下降。 这些发现与先前提出的一些潜在机制吻合良好，但与其他一些机制则存在较大差异。他们排除了被称为宇宙射线云假说的机制，但总体上支持自上而下的机制，即从高层大气传播到对流层，而对流层正是我们大部分天气现象发生的区域。 基于这项分析，作者认为，先前观测到的太阳活动与地球天气之间的长期相关性，很可能是由类似本研究中分析的太阳风暴等短暂的太阳活动爆发造成的，而非缓慢的持续变化。 这项研究还可以为天气和气候模型的更新提供参考，目前这些模型在准确捕捉地磁暴对地球大气层的影响方面仍存在困难。 —科学撰稿人Sarah Stanley This translation was […]
Students Enable Widespread Water Monitoring in India
Source: Community Science When a local community gets involved in environmental monitoring, their efforts can build awareness of local environmental issues and provide more plentiful […]