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“#Mapping the Oaxaca earthquake from space” Interferogram showing the coseismic surface displacement in the area of Oaxaca, Mexico, generated from multiple Sentinel-1 scans – before and after the 23 June earthquake. By combining data from the Copernicus Sentinel-1 mission, acquired before and after the earthquake, changes on the ground that occurred between the two acquisition…
“#A deep dive into shallow quakes” Credit: Australian National University New research from the Australian National University (ANU) has shown that Australia is prone to shallow and potentially destructive earthquakes. The research is at the international forefront of seismic source estimation and will help scientists calculate the time, location and characteristics of an earthquake. By…
“#Coronavirus lockdown reduced seismic activity around the world – new study” Seismic activity doesn’t just come from earthquakes, volcanoes and landslides. Everyday human activity also gives rise to vibrations that travel through the ground as seismic waves, something we call “anthropogenic noise”. When pandemic lockdown measures brought daily life to a standstill, it didn’t just…
“#Dust seen streaming out of Namibia into the Atlantic Ocean” The berg winds carrying sand out over the Atlantic Ocean. The small town is called Walvis Bay. Credit: USGS/Landsat 8/OLI Landsat 8 is the United States Geological Survey’s most recently launched satellite, and it holds the powerful Operational Land Imager (OLI.) The OLI is a…
“#COVID-19 lockdown caused 50% global reduction in human-linked Earth vibrations” Credit: Imperial College London The lack of human activity during lockdown caused human-linked vibrations in the Earth to drop by an average of 50% between March and May 2020. This quiet period, likely caused by the total global effect of social distancing measures, closure of…
“#NASA sees compact Douglas strengthening to a major hurricane” NASA-NOAA’s Suomi NPP satellite provided forecasters with a visible image of Hurricane Douglas at 5:54 p.m. EDT (2154 UTC) as it moved through the Eastern Pacific Ocean. Credit: NASA/NRL Although a compact storm, hurricane Douglas in the Eastern Pacific is mighty, as it has become the…
“#The spatial consistency of summer rainfall variability between the Mongolian Plateau and North China” Schematic diagram of the physical mechanism responsible for the consistency of precipitation variability in the MP and Northeast and North China Credit: Science China Press The Mongolian Plateau (MP) is located in the eastern part of arid Central Asia (ACA). Climatically,…
“#Novel theory of climate dynamics: Three-pattern decomposition of global atmospheric circulation” The climate characteristics of the annual mean of the kinetic energy (500 hPa, 1948~2011) (The unit is m2 s-2 1 kg, a~c are plotted by the three-pattern decomposition model, while d~f are plotted by the NCEP/NCAR reanalysis data). Credit: Science China Press Climate change…
“#What happens in Vegas, may come from the Arctic?” Lake Mead and its infamous bathtub ring is pictured on April 11, 2019. Credit: Josh Hawkins/UNLV A cave deep in the wilderness of central Nevada is a repository of evidence supporting the urgent need for the Southwestern U.S. to adopt targets aimed at reducing greenhouse gas…
“#Climate predictions several years into the future?” Wind field variations can be used to predict changes in sea surface temperature in the Atlantic Ocean over a period of years. Credit: Annika Reintges, edited by Christoph Kersten/GEOMAR Our planet’s climate system is complex. Different components, like atmosphere, ocean, sea and land ice influence each other and…