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  1. 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

  2. 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…”

    @USGS

  3. Comparing Multi-Model Mosaic And Multi-Model Combination Methods To Simulate Streamflow Across The Contiguous USA
    --
    doi.org/10.5194/hess-30-3945-2 <-- shared paper
    --
    H/T @cyril THEBAULT | Postdoctoral Fellow chez Earth Sciences New Zealand
    “[They] compared different multi-model approaches for streamflow simulation using 78 hydrological models across 559 catchments in the United States. [Their] results show that while multi-model combinations can slightly improve accuracy and reduce uncertainty, no single approach performs best everywhere.
    One interesting takeaway is that a carefully selected single model can perform as well as more complex multi-model approaches when it is chosen based on a comparative evaluation rather than simply inherited from legacy operational systems... 👀”
    --
    “The ability to accurately predict streamflow underpins decisions in water management, flood prevention, and sectoral planning. Traditional approaches for streamflow prediction often rely on a single model, thereby overlooking potential benefits from using multiple models. To address this limitation, this study explores alternative methods that select and combine multiple models to enhance streamflow simulations. Specifically, [they] assess[ed] the performance of multi-model mosaic methods that assign a single model to each catchment, and multi-model combination methods that merge multiple models using static or dynamic weighting schemes. The Framework for Understanding Structural Errors (FUSE) is used to create an ensemble of 78 hydrological models, which were applied to 544 catchments from the CAMELS dataset across the contiguous United States. Each of the 78 models is calibrated utilizing a composite objective function, calculated as the average of a high-flow and a low-flow performance metric, to cover a wide range of streamflow conditions. Based on [their] selection of lumped FUSE models, the results show that a carefully chosen single model from a larger ensemble can closely approach the performance of more complex multi-model strategies. Among the multi-model approaches, the combination and mosaic methods show broadly similar overall skill, although the combination approaches deliver slightly higher performance and lower sampling uncertainty. However, per-catchment differences persist, indicating that no single multi-model strategy dominates everywhere. This heterogeneity in performance makes it difficult to determine a priori which multi-model method will best represent streamflow in a given catchment…”
    #water #hydrology #streamflow #USA #CONUS #multimodel #simulation #hydrologic #model #modeling #catchments #watermanagement #waterresources #planning #watersecurity #flood #flooding #prediction #FUSE #CAMELS #spatialanalysis #spatiotemporal

  4. Comparing Multi-Model Mosaic And Multi-Model Combination Methods To Simulate Streamflow Across The Contiguous USA
    --
    doi.org/10.5194/hess-30-3945-2 <-- shared paper
    --
    H/T @cyril THEBAULT | Postdoctoral Fellow chez Earth Sciences New Zealand
    “[They] compared different multi-model approaches for streamflow simulation using 78 hydrological models across 559 catchments in the United States. [Their] results show that while multi-model combinations can slightly improve accuracy and reduce uncertainty, no single approach performs best everywhere.
    One interesting takeaway is that a carefully selected single model can perform as well as more complex multi-model approaches when it is chosen based on a comparative evaluation rather than simply inherited from legacy operational systems... 👀”
    --
    “The ability to accurately predict streamflow underpins decisions in water management, flood prevention, and sectoral planning. Traditional approaches for streamflow prediction often rely on a single model, thereby overlooking potential benefits from using multiple models. To address this limitation, this study explores alternative methods that select and combine multiple models to enhance streamflow simulations. Specifically, [they] assess[ed] the performance of multi-model mosaic methods that assign a single model to each catchment, and multi-model combination methods that merge multiple models using static or dynamic weighting schemes. The Framework for Understanding Structural Errors (FUSE) is used to create an ensemble of 78 hydrological models, which were applied to 544 catchments from the CAMELS dataset across the contiguous United States. Each of the 78 models is calibrated utilizing a composite objective function, calculated as the average of a high-flow and a low-flow performance metric, to cover a wide range of streamflow conditions. Based on [their] selection of lumped FUSE models, the results show that a carefully chosen single model from a larger ensemble can closely approach the performance of more complex multi-model strategies. Among the multi-model approaches, the combination and mosaic methods show broadly similar overall skill, although the combination approaches deliver slightly higher performance and lower sampling uncertainty. However, per-catchment differences persist, indicating that no single multi-model strategy dominates everywhere. This heterogeneity in performance makes it difficult to determine a priori which multi-model method will best represent streamflow in a given catchment…”

  5. How Space Weather Could Bust The AI Boom
    --
    spacenews.com/how-space-weathe <-- shared technical article
    --
    futurism.com/artificial-intell <-- shared technical article, “AI Data Centers Pushing Electric Grid Into Meltdown”
    --
    doi.org/10.1146/annurev-earth- <-- shared 2026 paper, “Magnetic Storms and Geoelectric Hazards”
    --
    #AI #datcenters #infrastructure #impacts #solarstorms #spaceweather #risk #hazards #overloading #electricity #energy #powersupply #energygrid #vulnerable #transmission #energy #demand #consumers #geoelectrical #geomagnetism #blackout #damage #cost #economics #equipment #transformers #carringtonevent #NERC #grid #reliability #electricaldemand #utilities #magneticstorm #electromagneticinduction #extremeevent #historicalevent #hazardanalysis #spaceweather #history #Carrington #geoelectric #humanimpacts #risk #hazard #monitoring #network #geology #geomagnetism #impedance #rock #soil #utilities #electricaltransmission #powerlines #magnetotelluric #sensor #blackout #brownout #energy #geoelectrichazard #geoelectric #GIS #spatial #mapping #spatialanalysis #spatiotemporal #model #modeling #geomagnetism #geomagneticstorm #telecommunication #electronics #hardened #geography #mitigation #preparedness #geomorphology #geomorphometry #surfacegeology #cost #economics #disaster #impacts #technology #InternetOfThings #internet #USA #review #CONUS #numericalmodeling #realtimemonitoring #AIBoom #Bust
    @North American Electric Reliability Corporation (NERC)

  6. How Space Weather Could Bust The AI Boom
    --
    spacenews.com/how-space-weathe <-- shared technical article
    --
    futurism.com/artificial-intell <-- shared technical article, “AI Data Centers Pushing Electric Grid Into Meltdown”
    --
    doi.org/10.1146/annurev-earth- <-- shared 2026 paper, “Magnetic Storms and Geoelectric Hazards”
    --

    @North American Electric Reliability Corporation (NERC)

  7. Study Highlights Growing Importance Of Multi-Day Storms In Future U.S. Flood Risk
    --
    news.okstate.edu/articles/engi <-- shared technical article
    --
    doi.org/10.1088/2752-5295/ae4f <-- shared paper
    --
    “Extreme rainfall is projected to intensify as the climate warms, yet whether the greatest increases will occur in multi-day or single-day events remains uncertain. This knowledge gap is particularly pressing given recent catastrophic floods triggered by multi-day rainfall events, prompting the question of whether multi-day events could, in fact, intensify more than their daily counterparts, and by how much. This study addresses this question using an ensemble of 34 downscaled Earth System Models under two Shared Socioeconomic Pathways (SSP2-4.5 and SSP5-8.5), focusing on changes in extreme rainfall by the end of the century across ten regions of the contiguous United States. [Their] statistical framework evaluates model agreement, ensemble-mean changes, and the significance of these changes for both daily and multi-day rainfall extremes. Results show that extreme rainfall amounts are expected to increase for most regions and durations. The degree of intensification, however, depends strongly on event rarity and regional climate characteristics. Notably, in the U.S. western Gulf Coast region, very rare multi-day events (e.g., 500 year return period) are projected to intensify more than their daily counterparts, a phenomenon that could be explained by increased stalling of tropical cyclones, which can prolong heavy rainfall over multiple days. These results challenge the assumption that daily extremes dominate future risk and highlight the need to consider event duration when updating flood-hazard maps, design standards, and adaptation planning…”
    #Flooding #FloodRisk #FloodInsurance #FloodAwareness #Explore #FloodPreparedness #FlashFlooding #ClimateResilience #climatechange #extremeweather #DisasterPreparedness #StormwaterManagement #FloodSafety #CommunityResilience #risk #hazard #model #modeling #floodrisk #multiday #rainfall #precipitation #storm #water #hydrology #hydrography #planning #policy #regulations #climatemodel #CONUS #USA #publicsafety #cost #economics #damage #loss #infrastructure #spatiotemporal #spatialanalysis #earthsystemmodels #forecasting #meteorology #designstandards #floodmapping #mitigation #flood

  8. Study Highlights Growing Importance Of Multi-Day Storms In Future U.S. Flood Risk
    --
    news.okstate.edu/articles/engi <-- shared technical article
    --
    doi.org/10.1088/2752-5295/ae4f <-- shared paper
    --
    “Extreme rainfall is projected to intensify as the climate warms, yet whether the greatest increases will occur in multi-day or single-day events remains uncertain. This knowledge gap is particularly pressing given recent catastrophic floods triggered by multi-day rainfall events, prompting the question of whether multi-day events could, in fact, intensify more than their daily counterparts, and by how much. This study addresses this question using an ensemble of 34 downscaled Earth System Models under two Shared Socioeconomic Pathways (SSP2-4.5 and SSP5-8.5), focusing on changes in extreme rainfall by the end of the century across ten regions of the contiguous United States. [Their] statistical framework evaluates model agreement, ensemble-mean changes, and the significance of these changes for both daily and multi-day rainfall extremes. Results show that extreme rainfall amounts are expected to increase for most regions and durations. The degree of intensification, however, depends strongly on event rarity and regional climate characteristics. Notably, in the U.S. western Gulf Coast region, very rare multi-day events (e.g., 500 year return period) are projected to intensify more than their daily counterparts, a phenomenon that could be explained by increased stalling of tropical cyclones, which can prolong heavy rainfall over multiple days. These results challenge the assumption that daily extremes dominate future risk and highlight the need to consider event duration when updating flood-hazard maps, design standards, and adaptation planning…”

  9. Hype for the Future 142B: State of Alaska Explained

    Introduction The State of Alaska is uniquely located largely, though not entirely, north of the Arctic Circle at the northwestern edge of North America, famously ending with the Alaskan Panhandle extending well to the south of the Arctic—as far south as approximately 54°40’ North. However, the Aleutian Islands of the State of Alaska also extend even further south than the Alaska Panhandle, with the southernmost island, Amatignak, near 51° North. Communities Within the State of […]

    novatopflex.wordpress.com/2026

  10. Hype for the Future 142B: State of Alaska Explained

    Introduction The State of Alaska is uniquely located largely, though not entirely, north of the Arctic Circle at the northwestern edge of North America, famously ending with the Alaskan Panhandle extending well to the south of the Arctic—as far south as approximately 54°40’ North. However, the Aleutian Islands of the State of Alaska also extend even further south than the Alaska Panhandle, with the southernmost island, Amatignak, near 51° North. Communities Within the State of […]

    novatopflex.wordpress.com/2026

  11. US CONUS Rivers Of Dimension By Annual Flow – An Older (2013) But Still SO Useful Hydrologic Visualisation
    --
    pacinst.org/american-rivers-a- <-- shared technical post
    --
    “... Several things stand out:
    1) the massive flow of the mighty Mississippi and Columbia River systems
    2) the paucity of major rivers in the western US, especially the southwestern US, where the only major rivers are the seriously over-tapped Colorado and Rio Grande Rivers
    3) the local importance of the Sacramento-San Joaquin Rivers in California, which serve the state’s cities and agricultural regions…”
    #visualisation #infographic #water #hydrographic #hydrology #US #USA #CONUS #flow #humanimpacts #gage #USGS #USGSgage #agriculture #transportation #rivers #waterresources #overuse #monitoring #planning #AmericanRivers #mapping #spatial #spatialanalysis #scale #symbology #proportional #symbology #bigriver #Colorado #Columbia #Mississippi #SanJoaquin #RioGrande #NHD #NationalHydrographyDataset
    #PacificInstitute | #USGS | #AmericanRivers

  12. US CONUS Rivers Of Dimension By Annual Flow – An Older (2013) But Still SO Useful Hydrologic Visualisation
    --
    pacinst.org/american-rivers-a- <-- shared technical post
    --
    “... Several things stand out:
    1) the massive flow of the mighty Mississippi and Columbia River systems
    2) the paucity of major rivers in the western US, especially the southwestern US, where the only major rivers are the seriously over-tapped Colorado and Rio Grande Rivers
    3) the local importance of the Sacramento-San Joaquin Rivers in California, which serve the state’s cities and agricultural regions…”

    | |

  13. Streams & River Names Across The USA From USGS NHDPlus
    --
    linkedin.com/posts/john-hammon <-- shared technical post
    --
    H/T John Hammond | Research Hydrologist @ USGS
    “Ever wonder how streams and rivers differ in naming across the country and what the most common names are?...
    ----
    NAME COUNT
    --
    Mill Creek 6,213
    Spring Creek 5,862
    Dry Creek 5,750
    Bear Creek 4,945
    Beaver Creek 4,740
    Rock Creek 4,514
    Indian Creek 4,231
    Cedar Creek 3,849
    Willow Creek 3,777
    Cottonwood Ck 3,694
    Big Creek 3,424
    Clear Creek 3,223
    Sand Creek 2,863
    Deer Creek 2,781
    Turkey Creek 2,752
    Wolf Creek 2,701
    Mud Creek 2,518
    Crooked Creek 2,176
    Brush Creek 2,019
    Buffalo Creek 2,009
    Elk Creek 1,950
    Salt Creek 1,932
    Horse Creek 1,899
    Silver Creek 1,887…”
    #water #hydrology #name #USA #NHDPlus #variety #names #rivers #streams #NGTOC #3DHP #national #country #CONUS #nomenclature
    #USGS

  14. Streams & River Names Across The USA From USGS NHDPlus
    --
    linkedin.com/posts/john-hammon <-- shared technical post
    --
    H/T John Hammond | Research Hydrologist @ USGS
    “Ever wonder how streams and rivers differ in naming across the country and what the most common names are?...
    ----
    NAME COUNT
    --
    Mill Creek 6,213
    Spring Creek 5,862
    Dry Creek 5,750
    Bear Creek 4,945
    Beaver Creek 4,740
    Rock Creek 4,514
    Indian Creek 4,231
    Cedar Creek 3,849
    Willow Creek 3,777
    Cottonwood Ck 3,694
    Big Creek 3,424
    Clear Creek 3,223
    Sand Creek 2,863
    Deer Creek 2,781
    Turkey Creek 2,752
    Wolf Creek 2,701
    Mud Creek 2,518
    Crooked Creek 2,176
    Brush Creek 2,019
    Buffalo Creek 2,009
    Elk Creek 1,950
    Salt Creek 1,932
    Horse Creek 1,899
    Silver Creek 1,887…”

  15. Headlines August 26, 2025 from Democracy Now!
    Trump Orders Creation of “Specialized” National Guard Units to Quell Civil Unrest

    Trump's new army threatens Civil War on the #CONUS #USA

    They will risk death by their own people.
    This will not "quell civil unrest, because there is none. This will create it, because #Trump always lies when he shits on people.
    #Revolt #Insurrection #USA

    indyradio.net/?q=node/424

  16. #Nature Direct observation of coherent elastic antineutrino–nucleus scattering www.nature.com/articles/s41... Observation of elusive interaction between neutrinos and atomic nuclei www.nature.com/articles/d41... #CONUS #Neutrinos