#USGS Floods

[kommabortsig]

Flooding_in_Cedar_Rapids,_IA_(2593483361).jpg

[usgs-unofficial]

Did you know that a rifle is technically considered part of the DOI field kit?

Did you also know that very secluded rivers are excellent places to hide bodies?

[duoatomica]

‼️‼️STOP SCROLLING AND READ THIS PLEASE‼️‼️

In brazil, there's been having a lot of floods in the southern region of the country, more specifically in the state of Rio Grande do Sul

Every day people are dying , cities are submerged, a single city was erased from the map for being totally underwater.

"Sadly the city of Eldorado RS, doesn't exist anymore - The city was totally covered by water"

Everyday, people have to witness everything they've built get lost admist the water, people have to live with floating bodies of adults, children, toddlers, newborns, animals, dogs, cats, elders, every possible life in these cities are being taken away by the floods.

People spend day and night on rooftops, waiting for boats to save them, but not everyone comes out alive.

Hear this audio:

The man says: "Hey Gabriela, deal with what I'll tell you now, there was three children at the boat with me, one of them asked me to pick up a doll that was floating, and I went to grab the doll. It wasn't a doll, it was a baby, a dead baby."

It's the reality of what's happening in Brazil right now when you're reading this.

Sadly, I can't share more than one video here on Tumblr, but theres an audio of a woman thanking her parents for everything, saying she loved them and asking them to take care of her dog Maicon, in the audio, she said she didn't feel her legs, that she felt like she was hallucinating, that the water was almost at her chin, that she was about to die, that her other dog died. After the woman spoke, the sound of the roof breaking and falling was heard in the background, sounds of water splashing, and after the audio was sent, she died, submerged in the ruins of her own underwater house.

We can't do much, but if whoever is seeing this post could donate for help, it would be a step closer to salvation of more and more people.

Here's the link if you want to donate for Rio Grande do Sul: Vakinhahttps://www.vakinha.com.br › a-ma...A Maior Campanha Solidária do RS

https://www.google.com/url?q=https://www.vakinha.com.br/vaquinha/a-maior-campanha-solidaria-do-rs%3F&sa=U&sqi=2&ved=2ahUKEwjAgrybp_yFAxUiHbkGHRWMDbIQFnoECDAQAQ&usg=AOvVaw2z2py3rN07FmWV4NePVuOS

Thanks for reading this post, even if only a few people.

[pinyonrice]

Extremely cool website where you can download historical georeferenced USGS topographic maps and use in GIS software- and you don't need an Esri account download it! The extent of the maps don't go very far outside of the U.S. though

link -> https://livingatlas.arcgis.com/topomapexplorer

Here's a close-up of the grand canyon stitched with four different topo maps made in 1886.

I've been looking at reservoirs and comparing them to see how drastically rivers have changed, along with other natural features that have changed

Detroit, OR 1929 (prior to the construction of the Detroit dam) vs 1956 (a few years after the dam's completion). Had no idea that there used to be a railway there, and some buildings were swallowed up when the river was flooded (i.e. the ranger station in the east portion of the lake)

anyhoo, I'm having a blast looking at old maps- going to explore the appalacians to find historic evidence of mountain top removal next, and then examples of eminent domain being used in less affluent and white areas (looking at YOU interstate-10 Bexar county)

[justinspoliticalcorner]

Gabrielle Canon at The Guardian:

A large earthquake struck the northern California coast on Thursday morning, rattling communities and activating emergency alerts for both shaking and tsunami risks just before 11am local time. Registered as a magnitude 7.0 and originating near the town of Ferndale in Humboldt county, the quake could be felt in San Francisco more than 260 miles (418km) away. Roughly 1.3 million people felt the quake , according to initial estimates provided by the US Geological Survey (USGS), which also reported that risks to human life remained low. “That is an earthquake with quite a lot of energy,” the climate scientist Daniel Swain said of the temblor during a discussion shared on YouTube, adding that it was somewhat similar to other earthquakes that have occurred in the region over the last decade. Cellphones buzzed throughout the region, warning of the incoming shaking and offering ample time to brace and cover. Tsunami alerts also rang out for at least 5.3 million people on the California coast and into Oregon, warning of large waves, strong currents and coastal flooding that could persist through the afternoon.

Following the alert, Bay Area Rapid Transit trains were held and underground stations were cleared as major delays were announced throughout the system, and the San Francisco fire department began evacuating the beaches. The tsunami warning was withdrawn shortly after noon as officials announced the highest risks had subsided. ���One challenge with tsunami hazards is you don’t always know what you’re going to get,” Swain said, explaining why the alarm was raised and then abruptly withdrawn. “If it’s going to be big it may be too late to get people out of harm’s way.” But some experts in the emergency management field were critical of how the warnings were rolled out, especially to residents in the San Francisco Bay area. Swain pointed to the potential for warning-fatigue to set in when alerts aren’t adequately explained as some in the region voiced concerns about confusion caused by inconsistent messaging and directions as some warnings were canceled.

A 7.0 magnitude earthquake struck the Northern California coastline today.

I think this is a way of saying it’s God’s punishment for electing Donald Trump.

[rjzimmerman]

Coastal flooding (no storm), shallow groundwater exposure and erosion (unimpeded model case) for one meter of sea-level rise and observed vertical land motion (VLM) across the Southeast Atlantic coast.

Excerpt from this report from the US Geological Survey:

A study led by USGS outlines a multifaceted climate-driven crisis facing communities along the Southeast Atlantic coast of the United States. As sea level rises, increased flooding, land subsidence, beach erosion, and rising groundwater levels threaten the safety, property, and infrastructure of millions.

While previous research has largely focused on flooding, the new study highlights additional threats such as groundwater hazards, land subsidence, and beach erosion. These hazards, often underappreciated in climate discussions, will be amplified by sea levels projected to rise by one meter over the next century. The study estimates that up to 70% of coastal residents and $1 trillion in property could face challenges from shallow and emerging groundwater. This risk is 15 times greater than the exposure to daily tidal flooding alone.

Storm activity, which is becoming more intense with climate change, adds another layer of complexity. The study projects that storm-driven flooding over the next century, including storm surge and wave-driven water levels, could expose roughly 50% of coastal residents and $770 billion in property to severe flooding, an increase by an order of magnitude compared to daily flood impacts.  

The study also warns of dramatic shoreline changes, with up to 80% of present-day beaches at risk of being completely eroded. This loss would not only devastate ecosystems and tourism but also weaken natural flood defenses, leaving coastal areas more vulnerable. Compounding these issues is the high rate of land subsidence already affecting more than one million residents in the region. This gradual sinking of the ground will intensify flooding and groundwater hazards, further challenging adaptation efforts.

[mountrainiernps]

Volcano Week

Be Geohazard Aware! Eruptions on volcanoes like Mount Rainier are complicated by the glaciers covering them. During an eruption, glacial ice can melt and mix with rock, ash, and other volcanic materials to form powerful flows of mud and debris. Lahars (volcanic mudflows), post-lahar sedimentation, and flooding can have greater effects on downstream populations than the eruptions themselves, and these hazards can persist for years after the eruption is over. These geohazards can occur during eruptions, after large landslides, even without an active volcanic eruption.

Smaller seasonal debris flows can also be caused by sudden outbursts of glacial water, by intense precipitation, or embankment failure. While detection and warning models are improving, it is important to always be aware of your surroundings. Remember, if you notice a sudden change in water levels, feel the ground rumble, or hear a loud roaring sound, move to higher ground immediately! If you see signs of a debris flow or other geohazard activity, please report it to a ranger.

Mount Rainier is an active volcano with the potential for future eruptions, but eruptions do not happen without warning. The USGS Cascades Volcano Observatory (CVO) carefully monitors Mount Rainier and other Cascade Range volcanoes. Follow the link for Current Alerts for U.S. Volcanos and click the "CVO" tab for Cascade Range volcano updates.

NPS Photo, 2011. A ranger leans against one of the massive boulders left behind from a debris flow along Tahoma Creek. ~kl

[meteorologistaustenlonek]

@USGS - "Communities affected by Hurricane #Milton can monitor flooding and weather conditions, often in real-time, using several USGS tools. For links to these resources and more, visit:"

[allthegeopolitics]

“Heavy rains and torrents of cold lava and mud flowing down a volcano's slopes on Indonesia’s Sumatra island triggered flash floods that killed at least 37 people and more than a dozen others were missing, officials said Sunday” That’s a terrible tragedy.

How do cold lavas work?

Here's an explanation by the USGS:

https://www.usgs.gov/programs/VHP/lahars-move-rapidly-down-valleys-rivers-concrete/

[zuko-kitty]

Heyyo fellow users! Do you want real time, constantly updating maps of flooding, black outs, road closures, land slides, and other important things? Use ArcGIS! NASA, NOAA, USGS, and so many more organizations have free, constantly updating maps through GIS.

These maps also rely on users to report in what satellites and (extremely overwhelmed) ground teams can't evaluate. Rescue teams, hospitals, and other emergency responders use this data to identify safe routes and places of highest need, so if you can provide extra info, please do!

https://www.usgs.gov/special-topics/hurricane-helene

Friday Sept 27:

Millions are without power this morning and underwater.

Do not go into floodwaters. It is not safe. There is debris, animals, pathogens, and god knows what else in the water.

[draft-9264]

Natural Disasters In The USA: What Are They And How To ...

Moovazhttps://www.moovaz.com › blog › all-about-natural-dis...

Oct 28, 2021 — The most potent natural catastrophes that took place in the US include hurricanes, tornadoes, floods, droughts, volcanoes, tsunamis and wildfires.

4.5(147)

How can climate change affect natural disasters?

USGS (.gov)https://www.usgs.gov › faqs › how-can-climate-change-a...

With increasing global surface temperatures the possibility of more droughts and increased intensity of storms will likely occur.

DRAFT

[ultraheydudemestuff]

Dey Road Bridge or High Street Bridge

1335 W. High St.

Defiance. OH 43512

The Dey Road Bridge, a.k.a. High Street Bridge, is a historic truss bridge which carries Dey Road over the Tiffin River 0.35 miles east of U.S. Route 24, west of Defiance in Noble Township, Defiance County, Ohio. Built in the early 1900s, it has been designated a historic site and is listed on the National Register of Historic Places. Dey road was petitioned for as a public road in 1832 In what was then Williams county by Samuel Dey who owned the land to the north of the bridge. In 1835, an early toll bridge across the Tiffin was built at the nearby community of Brunersburg. but it was soon destroyed by a flood and replaced by a bridge built in 1882. The current bridge is a Pratt through truss bridge that was manufactured and built in 1906 by the Massillon Bridge Company of Toledo, Ohio, at a cost of $3,967.50. Built on concrete supports, it is constructed primarily of iron. In 1907, it became a local landmark for surveying purposes when a USGS surveyor placed a benchmark on its northwestern abutment.

The Pratt through truss has diagonals in tension and its verticals in compression, except for the hip verticals adjacent to the inclined end posts. It was the most popular through truss built on highways in the late 19th and early 20th centuries. This one span bridge extends 170 feet and is 16 feet wide. It is set on concrete abutments. The top chords and end posts are composed of two channels a top plate and lacing while the posts have two channels with lacing. Like many of the bridges built during this time it has pin-connections.

This bridge provided a vital Tiffin River crossing for 39 years and was replaced by the prestressed concrete bridge to the south in 1995 at a cost of $1,130,000. Preservation was encouraged by the federal highway administration program known as the "enhancement program” in 1997 at a cost of $237,000. On February 5, 1999, the bridge was listed with the National Register of Historic Places, qualifying because of its historically significant engineering. By that time, the bridge was vacant and not in use. Now known as the "Old Dey Bridge", the bridge is closed to road traffic, although pedestrians are still permitted to use it. The bridge is one of several locations included as points of interest on a proposed Defiance city strategic plan.

[spacetimewithstuartgary]

Mangroves Are Losing Their Resilience

Mangrove forests are an iconic feature of the Florida Everglades, their half-submerged roots forming tunnels for kayaking tourists. Beyond their beauty, these trees are important for humans and sea life alike. They stabilize coastlines, slow the movement of tides, store carbon, and help protect against erosion from storm surges. Their tangled root system provides shelter for fish and other organisms.

Mangroves are known to be able to withstand intense flooding, but a new study published in Remote Sensing of Environment found that the increasing frequency and intensity of storms are threatening their resilience. The researchers used data from Landsat satellites to analyze mangrove conditions in Florida from January 1999 through April 2023. They found that as stronger hurricanes hit more often, some mangrove forests are losing their natural capacity to recover.

“Our monitoring has shown a significant increase in the area of mangroves that have lost their natural recovery capacity following recent hurricanes, such as Irma in 2017 and Ian in 2022,” said Zhe Zhu, a co-author of the study and a former member of the USGS-NASA Landsat science team.

Previous studies have often analyzed a particular disturbance, such as a hurricane, and tracked any losses of mangrove forests after the storm hit. For example, the photo below, acquired by the G-LiHT (Goddard Lidar, Hyperspectral and Thermal Imager), shows mangroves in southern Florida damaged by Hurricane Irma. In the new study, the researchers sought a more complete picture of how mangrove conditions have changed over time, hoping for insight into how these trees recover.

The researchers created four categories of mangrove conditions: healthy, disturbed, recovering, and declining. A healthy mangrove forest shows no change when hit by a storm. A disturbed mangrove is affected by a storm, but it rebounds to a healthy state within the same growing season. A recovering mangrove takes longer than one growing season to rebound. A declining mangrove is one that does not recover naturally after a disturbance but instead faces long-term decline.

The benefit of this satellite-based approach is that it allows for continuous monitoring of mangrove conditions. Researchers can capture disturbances as they happen. They used a machine learning algorithm to classify mangrove conditions, which can be continually updated as new Landsat data becomes available. It can also provide early identification of the signs of a declining mangrove, alerting land managers as to where they should focus their efforts.

“Our research aims to provide an early warning system for mangrove decline, helping to identify areas at risk before irreversible loss occurs,” Zhu said.

One of the clearest ways to visualize the changing resilience of mangrove forests is to compare the recovery from different disturbances. The maps at the top of this page, composed using the Landsat-based algorithm, indicate the condition of mangroves in the southern Everglades National Park bordering the Gulf of Mexico.

The maps show mangrove status before and after Hurricane Wilma in 2005 and Hurricane Irma in 2017, both of which were Category 5 storms. While most damaged mangroves experienced natural recovery after Hurricane Wilma, mangroves in the aftermath of Irma saw a large area of decline (indicated in orange on the map), including some that ultimately became “ghost forests”—a forest of dead trees.

In future work, the researchers hope to expand the study area and work toward a system to monitor mangrove conditions worldwide. Meanwhile, they plan to fine-tune the current algorithm to better understand the different drivers of mangrove change.

“By identifying whether changes are driven by extreme weather events, rising sea levels, or human activities, we can provide more targeted insights for conservation and management strategies in a rapidly changing environment,” Zhu said.

NASA Earth Observatory image by Lauren Dauphin, using data from Yang, Xiucheng, et al. (2024). Story by Madeleine Gregory, Landsat Science Outreach Team.

[livingmeatloaf]

[image ID: a colorful infographic titled "Why is the..." with three branching paths - Water, Sky, Earth - and "so... :" Small relevant hand-drawn illustrations accompany each question. Links go to United States based resources addressing each weather concern.

Why is the sky so:

Hazy? AirNow.gov

Dark'n stormy? Weather.gov

Weird? NASA.gov

Why is the water so:

smelly/gross/weird? Mywaterway.epa.gov

Not where it's meant to be? See below.

Are you at the beach? (this branches off into many answers, all following water questions go from this one)

If yes, and Too little water where there should be? Tsunami.gov * if water at the beach dramatically recedes, run inland immediately

If no, and Too little water where there should be? Drought.gov

If yes, and Too much water where there shouldn't be? NOAA.gov; Digital coast*, Storm Prediction Center, National Hurricane Center. *Sea level rise viewer and coastal flood exposure mapper

If no, and Too much water where there shouldn't be? Ready.gov/floods, Weather.gov

Why is the earth so:

Shaky? USGS, earthquakes.usgs.gov

Shaky and the sky is weird? USGS, Volcano Hazard Program, usgs.gov/programs/VHP

Moving downhill? Usgs, Landslide Hazard Program, US Landslide Inventory, usgs.gov/programs/landslide-hazards; National Avalanche Center, avalanche.org

In a separate box at the bottom: For a wide range of disasters and emergencies, including many not mentioned here, visit Ready.gov for information on how to get prepared before they happen. The FEMA app also allows you to receive real-time weather and emergency alerts, send a notifications to loved ones, locate emergency shelters in your area, get prepared this strategies and more.

Quakeandqiver.com is credited in purple text along one side. End ID.]

Noticed something a little funky in the world around you and want to figure out what's up? Especially if there might be something you ought to be doing about it? Not sure what information sources to trust these days? If you're in the US, federal agencies like NOAA, USGS, EPA and more collect massive amounts of scientific data every day, much of which is publicly available online - if you know where to look.

A PDF version with clickable links is available for free on my itchio page (quakeandquiver); I'll add a direct link in a reblog.

[andronetalks]

Hurricanes potentially spread more than a hundred invasive species to Florida

Florida Phoenix – The Phoenix Flyer By: Mitch Perry – December 11, 2024 1:56 pm Recent hurricanes and associated flooding may have transported hundreds of nonnative species into Florida and Georgia, according to maps prepared by the U.S. Geological Survey (USGS). A preliminary map for Hurricane Helene indicates that 222 nonnative species “had the potential to spread due to storm-related flooding,…

[andrewtheprophet]

Another earthquake before the Sixth Seal: Revelation 6

Another Earthquake Rattles New Jersey: USGS A small earthquake shook New Jersey again on Thursday, the U.S. Geological Survey confirmed. Posted Thu, Aug 8, 2024 at 2:07 pm ET Dozens of quakes have rattled the state since the 4.8 quake in April. (USGS) Another earthquake has struck New Jersey. (USGS) NORTH JERSEY, NJ — As Tropical Storm Debby targets the Garden State with possible flooding,…