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PSLV-C51/Amazonia-1 mission successful, Isro places 19 satellites in orbits
By Lurker,
The Indian Space Research Organisation opened its space calendar 2021 with the successful launch of PSLV-C51 carrying Amazonia-1 and 18 other satellites on Sunday.
PSLV-C51 carrying Amazonia-1, an optical earth observation satellite from Brazil, and 18 other satellites lifted off from the first launch pad at Satish Dhawan Space Centre in Sriharikota at 10.24am.
Around 17 minutes after lift-off and one minute after the PS4 engine cut-off, PSLV placed its primary payload -- 637kg weighing Amazon
Saharan Dust Heading for Europe
By Lurker,
February 18, 2021
Each year more than 180 million tons of dust blow out from North Africa, lofted out of the Sahara Desert by strong seasonal winds. Perhaps most familiar are the huge, showy plumes that advance across the tropical Atlantic Ocean toward the Americas. But the dust goes elsewhere, too—settling back down in other parts of Africa or drifting north toward Europe.
A dramatic display of airborne dust particles (above) was observed on February 18, 2021, by the Visible In
Soil biodiversity in danger: why it is crucial to protect Soil
By Lurker,
From earthworms to nematodes, from mites to insect larvae, and fungi to bacteria, there are more than 7,000 types of species in our soils. According to The German Center for Integrative Biodiversity, you can find up to 1.5 kilograms of organisms living under a single square meter.
These hidden cities full of thousands of creatures, known as soil organisms, are crucial to creating nutrients from dead plants and animals to keep our soil healthy and grow new plant life. Without healthy n
Mount Etna spews smoke and ash in spectacular new eruption
By Lurker,
Etna produced a very spectacular lava-fountaining eruptive episode, known as paroxysm.
Starting from around 5 p.m. local time in the afternoon, the strombolian activity, which had been going on for the past weeks from the New SE crater intensified significantly. Shortly after, a lava overflow was observed from the eastern side of the South East crater. At 16:05 UTC (5:05 p.m. local time), a part of the eastern flank of the cone collapsed into a pyroclastic flow that traveled down the western wa
Google Maps update brings split screen mode for Street View
By Lurker,
Google Maps for Android is one of the most actively developed Google apps, with new features and improvements routinely being added to the navigation app. In the last two months alone, the app has gained quite a few functionalities, including a new community feed, a Go tab for accessing frequently visited places, messaging for verified businesses, a new driving mode, and food delivery alerts. The app will also soon start showing COVID-19 vaccine locations in the US. Now the Google Maps on Androi
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Many scientists are interested in using interferometric synthetic aperture radar (InSAR) data to monitor the motion of Earth’s surface, but the analyses required can be complex, and the data are often challenging to work with. To simplify these analyses, the Jet Propulsion Laboratory (JPL) Observational Products for End-Users from Remote Sensing Analysis (OPERA) team has created an OPERA Surface Displacement (OPERA-DISP) dataset. This dataset provides InSAR-derived surface displacement measurements across most of North America and is now available via NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). To support data users working with this product, ASF DAAC has also launched the ASF Displacement Portal — an open-source web interface that offers intuitive spatial browsing and direct exploration of the OPERA-DISP dataset. In this webinar, learn more about the OPERA-DISP product and the portal that enables its exploration. The OPERA-DISP solution is a deliverable of the Satellite Needs Working Group (SNWG), an interagency effort of the U.S. Government dedicated to identifying and addressing Earth observation needs across U.S. civilian federal agencies. link:
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A Swiss Alpine village has been buried by a massive debris field after a glacier collapsed on a nearby mountain. Reuters reports that 90% of Blatten, Switzerland is engulfed by ice, mud, and rock after what scientists suspect is a dramatic display of the impact of climate change on mountain communities. "It’s critical to realize that we now have left the space of historical precedence and entered an era where we face new hazards from locations that have never been a problem in the past and where protection may be technically hardly possible or financially unfeasible," Christian Huggel, a professor of environment and climate at the University of Zurich, told USA TODAY via email. The community of 300 had been evacuated prior to the collapse of the Birch Glacier, but at least one 64-year-old man is still missing. Police suspended search efforts on May 29 citing instability in the debris. Making matters worse for the already devastated area, Reuters reports that a river blocked by glacial debris is raising the possibility of flooding and additional evacuations. The below video, satellite images, maps and photos show how the disaster unfolded. https://www.youtube-nocookie.com/embed/qHIbZCL2oEM?si=ZMv4QQKPEBayn2dE
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The Joint Agency Commercial Imagery Evaluation (JACIE) Earth Observing Satellites Online Compendium contains details about past, present and future Earth observing satellites and the sensors they carry. Derived from print versions of Compendiums published in 2019, 2020, and 2022, this resource has been developed and is managed by the Requirements, Capabilities and Analysis for Earth Observation (RCA-EO) team at the USGS Earth Resources Observation and Science (EROS) Center in Sioux Falls, South Dakota. The Joint Agency Commercial Imagery Evaluation (JACIE) Earth Observing Satellites Online Compendium is derived from three print versions published in 2019, 2020, and 2022. This compendium provides detailed information on past, current and future land remote sensing satellites and their sensors. The data will be updated regularly as new satellites are launched into space. Visit this USGS webpage for more information on using the compendium. Comments, corrections, and further information on systems for inclusion in this compendium are welcomed and can be sent to [email protected]. The print and online compendia are developed by staff supporting the Requirements, Capabilities and Analysis for Earth Observation (RCA-EO) and the EROS Cal/Val Center of Excellence (ECCOE) projects at U.S. Geological Survey’s Earth Resources Observation and Science (EROS) Center and is done in conjunction with the multi-agency JACIE consortium. The content of the Compendium is updated weekly. The overall application was last updated February 2024. Please use this suggested citation when referencing the Compendium: Kropuenske, T., Clauson, J., Shaw, J., Vrabel, J., Ali, M., Ranjitkar, B., Rusten, T., and Anderson, C., 2024, Earth Observing Sensing Satellites Online Compendium: U.S. Geological Survey digital data, https://calval.cr.usgs.gov/apps/compendium. source: https://calval.cr.usgs.gov/apps/compendium
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