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#usgs — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #usgs, aggregated by home.social.

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  1. Tibet-Nepal-Flut: Gletscherabbruch als Ursache vermutet

    Die Sturzflut im Grenzgebiet zwischen #Nepal und dem Autonomen Gebiet #Tibet, die am Mittwoch für zahlreiche Tote und Vermisste gesorgt hat, ist nach Angaben der US-Erdbebenwarte #USGS von einem Gletscherabbruch ausgelöst worden. Was zu dem Abbruch führte, ist noch offen. Fachleute vermuten aber, dass die #Erderwärmung zu den Ereignissen beigetragen hatte.

    Laut der Forschungseinrichtung International Centre for Integrated Mountain Development #ICIMOD gelangte dadurch eine „große Menge an Eis und Geröll“ in einen Zufluss des #Bhotekoshi, was wiederum eine riesige #Sturzflut auslöste. Laut ICIMOD stieg der Wasserstand in den Flüssen innerhalb von 30 Minuten um sieben bis neun Meter an.

    orf.at/stories/3440373/

    #Geologie
    #Kryosphäre
    #Himalaya
    #Klimakrise
    #FlashFlood

  2. US Dept of Interior senior staff reassignments: U.S. Fish and Wildlife Service, U.S. Geological Survey #USGS, Bureau of Land Management, etc. #Burgum

    (h/t @climatebrad.hillheat.com on bsky)

    notus.org/agencies/interior-re

  3. Observations like this, and probably others we haven't noticed, may be the answer to why #Perseverance has been going in circles up and down, left and right in this wide area called Lac De Charmes.

    Map made with #QGIS using data from #NASA's #MMGIS and imagery from #HiRISE and #USGS

    #Mars2020 #Solarocks #Space

  4. Widespread Landslide Activity in an Extreme Wet Season and Implications for Regional Sediment Management, Eastern San Francisco Bay Area, California
    --
    doi.org/10.1029/2026EA005227 <-- shared paper
    --
    H/T @amy East, Ph.D., P.G. | Researcher integrating geoscience and climate-change preparedness
    “[This paper (link above) is] a collaboration with [the H/T’s] colleagues from [the] USGS Landslide Hazards Program, who mapped over 8,900 landslides in the eastern San Francisco Bay Area during an extreme wet winter.
    How much sediment does such an extreme winter produce, from landslides or in stream discharge? How does that compare with long-term sediment production and landscape denudation rates?
    [They] f[o]nd that landslide sediment mobilization is comparable to long-term denudation rates, emphasizing the role of extreme events in long-term sediment production. However, one extreme wet year has a negligible effect toward counteracting ongoing problems of sediment deficit in San Francisco Bay: to keep pace with sea-level rise, extreme wet conditions would need to occur in 50 out of the next 75 years…”
    --
    "PLAIN LANGUAGE SUMMARY: Watersheds will likely produce more sediment in a warmer future with more extreme rain, primarily through landslides in steep terrain. This study examines how an extremely wet season affected sediment production and transport in the eastern San Francisco Bay area, California. By mapping and measuring 8,928 landslides, [they] found that rare, extreme rain conditions are likely responsible for the vast majority of long-term hillslope erosion rates in this region. However, due to long residence times for sediment on hillslopes and in stream channels, a maximum of 1%–2% of that newly mobilized landslide material could have potentially contributed to sediment carried by streams into the Bay that year. Even extremely wet years cannot provide enough sediment for Bay wetlands and shorelines to keep pace with rising sea levels. To meet the demand for sediment in the Bay, such extreme rain and sediment production would need to occur in most years, which is not realistic. To restore wetlands and protect shorelines, managers likely will need to supplement the coastal system with repurposed dredged material…”
    #massmovement #soil #water #hydrology #hydrography #geology #soils #geomorphometry #hydrogeomorphology #geomorphology #landslide #masswasting #climatechange #extremeweather #precipitation #rainfall #weather #climate #mapping #engineeringgeology #mapping #SanFrancisco #BayArea #USA #California #fedscience #fedservice #oublicgood #sediment #stream #discharge #extremewinter #sealevelrise #SLR #hillslope #erosion #sedimentation #tidal #wetlands #coast #coastline #shoreline #GIS #spatial #spatialanalysis #spatiotemporal #watershed
    #USGS | #USGSLandslideHazardsProgram

  5. Earthquake! Felt a mild shake from the second floor and a little noise of this wood-framed building. My estimate was 4.0, #USGS first estimate was 4.0.

    It was further away than my estimate, but then again it is probably on the fault that would be a minute's walk from here if it weren't for all the fencing and train tracks.

    earthquake.usgs.gov/earthquake

    #Earthquake #California #SanFrancisoBayArea

  6. 🌋 Kilauea volcano‘s currently active eruption in Hawaii https://www.youtube.com/live/mKJ7ZyIdjeQ

    The bright orange eruptions, orange streaks of lava flow, orange lit clouds of smoke & steam all contrasted against the black sky and land are quite the visual ASMR. Paired with the ASMR wind from the mountain, the effect is quite calming and peaceful.

    Putting this on a projector is quite the night light to fall asleep to (requires YouTube Premium to avoid noisy ads interruptions that harsh your mellow)

    #Kilauea #volcano #eruption #Hawaii #orange #lava #lavaFlow #ASMR #wind #video #USGS
    #Blaugust #Blaugust2026

  7. One more eruption (lava overflowing now, precursor to fountaining) starting at #Kilauea #volcano in #Hawaii. Just happens to be around the same time of increased earthquake activity at the underwater volcano 20 miles off the coast. #USGS
    youtube.com/watch?v=HggWKlZv9yk

  8. New sol, new location, new site number 91. Relative to site coordinates x, y, z are reset to zero, so this is mostly guesswork.

    That interface between smooth and rocky terrain ahead may be it. The destination.

    Map made with #QGIS using #NASA's #MMGIS data and imagery and DTMs from #HiRISE and #USGS.

    #Mars2020 #Solarocks #Space

  9. That would have been the first crater to be closely examined by #Perseverance, but apparently it wasn't meant to be. Before even the digital ink in which my post was writen was dry, the rover moved once again, and is now past that little crater.
    ̄\_(ツ)_/ ̄

    New location RMC : 90.6800, Sol:1946

    #GIS #Mart2020 #NASA #HiRISE #USGS #QGIS #Space #Solarocks

  10. On the go again, but no idea where to.

    #Perseverance's new location
    Sol: 1941, RMC: 90.3664
    The path shown is a guess. Your guess would be as good as mine.

    Map drawn with #opensource #QGIS using data from #NASA's #MMGIS, along with data and imagery from #HiRISE and #USGS

    #Mars2020 #Solarocks #space

  11. Still not sure it moved on toward a new area, or it's going back to that swarm of previous sites 85, 86 and 87.

    New location: RMC 90.2288, on Sol 1940. The path is guessed.

    Map made with #QGIS using data from #NASA's #MMGIS, #HiRISE, #USGS

    #Perseverance #Mars2020 #Solarocks #Space

  12. Enhancements To The USGS Landsat Level 2 Surface Temperature And Emissivity Product For Collection3 Reprocessing
    --
    doi.org/10.1016/j.rse.2026.115 <-- shared paper
    --
    H/T @terry Sohl | USGS EROS Science Branch Chief
    “HIGHLIGHTS:
    • C3 advances Landsat TIR atmospheric correction, emissivity correction, and uncertainty estimates.
    • C3 enables global surface temperature products, including polar regions.
    • C3 retrievals improve accuracy and consistency across validation sites.
    • Split window and single channel methods diverge at extreme temperature conditions.
    • C3 and Landsat 10 support multi-decadal climate monitoring.
    ABSTRACT: The Landsat program provides the longest continuous global record of thermal infrared observations of the Earth's surface, underpinning critical applications in climate monitoring, water resources, ecosystem dynamics, urban heat analysis, and natural hazard assessment. The release of a global inventory of Landsat Collection 2 Level 2 surface temperature products by the U.S. Geological Survey (USGS) marked a major milestone in operational provision of Landsat thermal infrared analysis-ready data. Ongoing validations and community uses of Collection 2 have identified opportunities to further improve accuracy, uncertainty characterization, and emissivity correction across diverse atmospheric and surface conditions. In preparation for the planned Landsat Collection 3 reprocessing of the Landsat data record in the late 2020s, the USGS is implementing a coordinated set of enhancements to the Level 2 surface temperature products. These include revised emissivity estimation that leverages external datasets, improved atmospheric characterization and uncertainty propagation, expanded dynamic range for high temperature targets, consideration of split window atmospheric correction algorithm for Landsat 8 and 9, and decoupling of thermal infrared processing from visible to shortwave infrared constraints to enable surface temperature retrievals under low or no solar illumination conditions. These changes are designed to improve product quality and consistency across the Landsat record. Beyond near-term performance gains, the Collection 3 design establishes a scalable processing architecture to accommodate the expanded spectral and radiometric measurement capabilities of the forthcoming Landsat 10 mission. By preserving continuity across the Landsat 4–9 record while enabling future algorithm evolution, Landsat Collection 3 will provide a foundation for long-term, multi-decadal Earth system thermal infrared observations…”
    #GIS #spatial #mapping #satellite #remotesening #earthobservation #Landsat #thermalinfrared #TIR #surface #temperature #emissivity #thermal #infrared #analysisreadydata #Collection2 #Collection3 #opendata #atmosphericcorrection #global #climate #monitoring #waterresources #ecosystems #dynamics #urbanheat #spatialanalysis #spatiotemporal #naturalhazards #updates #EROS #USGS
    @USGS EROS | @USGS

  13. Looks like the time has come for #Perseverance to move on.

    Sol: 1939, RMC: 90.1420. The path is a guess.

    Map drawn using #QGIS with data from #NASA's #MMGIS, #HiRISE and #USGS

    #Mars2020 #Solarocks #Space

  14. #Perseverance is still turning in circles west of Lac De Charmes. Although ¹IANAG™, I suspect the geologists in its team are trying to establish what the conditions were in that area *before* it got hit by the Jazero metor that created the 45km crater.

    ¹ I Am Not A Geologist

    #QGIS #MMGIS #USGS #HiRISE

    #Mars2020 #NASA #Solarocks #Space

  15. Northern California Experiences Magnitude 4.2 Earthquake Near Healdsburg

    📰 Original title: Magnitude 4.2 earthquake rattles Northern California

    🤖 IA: It's not clickbait ✅
    👥 Users: It's not clickbait ✅

    View full AI summary en.killbait.com/northern-calif

    #geology #earthquake #northerncalifornia #usgs

  16. United States Geological Survey (USGS)

    Sismo de magnitud 4.8 mww, 59 km NNW of San Antonio, Puerto Rico, a una profundidad de 10 Kilometros

    *** Fecha Y Hora ***
    Mexico (UTC-6) : Jueves 23 de Julio del 2026 a las 8:42 PM
    UTC : Viernes 24 de Julio del 2026 a las 2:42 AM

    #SismoUSGS #Sismo #USGS #TemblorUSGS #Temblor #Sismologico #MonitorSismico

  17. A powerful #earthquake in southern #Mexico shook nearby countries #Guatemala & #ElSalvador Friday, with the #USGS measuring its preliminary magnitude as 7.3.

    The earthquake’s epicenter was located 48 kilometers southwest of Aquiles Serdán, a town in the Mexican coastal state of Chiapas, according to the USGS.

    The quake appears to have caused moderate to severe shaking along the coast.

    cnn.com/2026/07/17/americas/me

  18. Beyond The 100-Year Flood - Probabilistic Flood Hazard Assessment For King And Pierce Counties Under Future Climate Scenarios
    --
    doi.org/10.5194/nhess-26-3231- <-- shared #openacess paper
    --
    [part of my old stomping ground as an engineering geologist]
    H/T @Kees Nederhoff
    “Flood maps are usually built from a single design storm. For King and Pierce Counties in the Pacific Northwest (USA), [the authors] tried the opposite - simulate 82 years of actual coastal and river conditions (plus 18 synthetic years) with SFINCS and let the statistics fall out cell by cell. That took about 5,400 yearly simulations and 194,000 CPU hours on USGS's Hovenweep HPC. Worth it!
    The design-event shortcut turns out to hide a real hazard. A deterministic 10-year event underestimated flood depths by up to half a meter compared to the continuous runs.
    The bigger surprise [to the authors] was how one-sided the climate signal is. One metre of sea level rise takes King County's expected annual flooded area from 161 --> 787 hectares, almost a factor of five. Changes in storminess over the same horizon barely register. And somewhere between 100 and 150 cm of SLR, land that never floods today starts flooding fast. If you plan adaptation in Puget Sound, that threshold matters more than any single return-period map.
    [They] also propose Expected Annual Flooded Area (EAFA) as a probability-weighted alternative to the binary "inside or outside the 100-year zone" label…”
    #USGS #supercomputing #Hovenweep #HPC #coast #coastal #PNW #Seattle #PacificNorthwest #risk #hazard #riskmanagement #model #modeling #CFRM #deterministic #probabilistic #climatechange #extremeweather #fedscience #WA #KingCounty #PierceCounty #WashingtonState #USA #flood #flooding #compoundflooding #floodmaps #SFINCS #storm #weather #climate #climatechange #rainfall #precipitation #sealevel #sealevelrise #SLR #100yearflood #floodhazardmapping #returnperiods #pluvial #fluvial #spatialanalysis #spatiotemporal #remotesensing #streamgage #history #historicflooding #projections #predictions
    #USGS

  19. I'm pretty sure #Kilauea lava fountaining will start within hours of posting this -- one vent is rapidly boiling now! Check out the live stream of this very active vent or back out to see the live stream #USGS has of both vents.
    youtube.com/live/HggWKlZv9yk?i

  20. National Water Availability Assessment Data Companion Launches Interactive Map
    --
    water.usgs.gov/nwaa-data/ <-- shared USGS resource link
    --
    water.usgs.gov/nwaa-data/inter <-- shared USGS webmap
    --
    H/T @USGS NWDC
    “The National Water Availability Assessment Data Companion (NWDC) delivers national-scale modeled water data underlying the National Water Availability Assessment Report. The NWDC will be continuously updated to include new data used in future National Water Availability Assessment Reports, with planned reports in 2026 and 2030.
    The NWDC also serves information on underlying model methodologies, strengths, and limitations to enable proper use of the data…
    USGS scientific teams develop NWDC models to analyze and represent the complexities of water systems. These models fill gaps where USGS observations are unavailable, covering the conterminous United States (lower 48 states) and soon extending to Alaska, Hawaii, and Puerto Rico.
    All NWDC datasets currently cover past conditions over multiple decades, and are standardized to 12-digit [WBD] hydrologic unit code (HUC12) watersheds and monthly timesteps…”
    #opendata #monitoring #spatialanalysis #spatiotemporal #fedscience #publicgood #water #hydrology #waterresources #watermanagement #change #model #modeling #USA #NationalWaterAvailabilityAssessment #NWDC #CONUS #USGS #USGS_water
    @USGS

  21. yesterday i was scandalized by a mislabeled #USGS map on an #earthquake report and some of y’all had the fucking temerity to güelakchuatli me about it
    mastodon.social/@blogdiva/1168

    WELL, ACTUALLY, FUCK YOU.

    #Trump #MAGA gutted the geological and weather services and it’s showing during this #heatwave #canicule. #weather apps using #NOAA were off by 10°F. earthquake maps aren’t being edited to show the towns & main landmarks.

    WE NEED HUMANS MANAGING EMERGENCY SERVICES NOT STOCHASTIC PARROTS