Showing posts with label climate. Show all posts
Showing posts with label climate. Show all posts

Tuesday, February 23, 2021

Climate Change has Knock-On Impacts that are far-ranging

Scientific studies indicate that extreme weather events such as blizzards, heat waves, and powerful storms are likely to become more frequent or more intense with human-induced climate change, as we observe changes in temperature, precipitation, storms, floods, and droughts.

Climate change may not cause a particular storm, but resulting rising sea levels can worsen storm surge impact. In 2012, a three meter storm surge from Hurricane Sandy hit New York City at high tide, making the water almost 5 meters higher than average at the tip of Manhattan. Flooding destroyed neighborhoods and beaches in outer boroughs. The sea level in this area is rising by more than an inch each decade -- twice as fast as the global average -- and is predicted to rise 11 to 21 inches by 2050. To prepare, the city is implementing coastal resiliency measures: An innovative project will create more green spaces for city residents as well as a system of flood walls, berms, and retractable barriers for boost storm protection.



Over at the NYT, we read:

One-third of oil production in the nation was halted. Drinking-water systems in Ohio were knocked offline. Road networks nationwide were paralyzed and vaccination efforts in 20 states were disrupted.

The crisis carries a profound warning. As climate change brings more frequent and intense storms, floods, heat waves, wildfires and other extreme events, it is placing growing stress on the foundations of the country's economy: Its network of roads and railways, drinking-water systems, power plants, electrical grids, industrial waste sites and even homes. Failures in just one sector can set off a domino effect of breakdowns in hard-to-predict ways....

Sewer systems are overflowing more often as powerful rainstorms exceed their design capacity. Coastal homes and highways are collapsing as intensified runoff erodes cliffs. Coal ash, the toxic residue produced by coal-burning plants, is spilling into rivers as floods overwhelm barriers meant to hold it back. Homes once beyond the reach of wildfires are burning in blazes they were never designed to withstand... The vulnerabilities show up in power lines, natural-gas plants, nuclear reactors and myriad other systems. Higher storm surges can knock out coastal power infrastructure. Deeper droughts can reduce water supplies for hydroelectric dams. Severe heat waves can reduce the efficiency of fossil-fuel generators, transmission lines and even solar panels at precisely the moment that demand soars because everyone cranks up their air-conditioners...

Power outages in extreme weather could render hospitals and transportation systems inert when needed most. Crop declines could lead to hunger and higher food prices. More CO2 in the air could make staple crops like barley and soy less nutritious. Occupational hazards such as risk of heatstroke will rise, especially among those who work outside: farmers and construction workers who keep us fed and our infrastructure up to par will be hardest hit. Labor could shift to dawn and dusk, times when more disease-­carrying insects are out. and sleep deprivation from shift work is a known health hazard. Hotter days, more rain, and higher humidity will produce more ticks, which spread infectious diseases like Lyme disease.

We continue to see extreme weather and climate events increasing, and new and stronger evidence confirms that some of these increases are related to human activities that impact the global climate. There has been a sizable upward trend in the number of storms causing large financial and other losses -- and the knock-on effects are wide and varied.


Tuesday, September 10, 2019

UAS-Based Radar Suite for Sounding and Mapping Glaciers

Emily Arnold, Assistant Professor of Aerospace Engineering at the University of Kansas, was awarded a five-year, $609,000 National Science Foundation grant to customize an unmanned helicopter with two radar arrays so she can explore Greenland’s Helheim Glacier in 2021.

Carrying two bespoke radars powered by the aircraft's electrical system, the professor and her fellow researchers plan to not only map the glacial surfaces, but probe hundreds of meters into the ice. This kind of detailed data collection is not possible with satellite imagery, which covers great expanses but with less precision/far less resolution than low-altitude radar grid mapping. The UAV will operant in an environment of extreme cold temperatures with winds that can reach 55 knots — all while carrying a 10-pound payload. The specifications are for a mission endurance longer than 25 minutes. This means hardware more capable than the typical off-the-shelf solution.

Arnold and her other University of Kansas collaborators aim to gather data that will help scientists better understand the physics and dynamics of ice. “We want to know what [glaciers'] contribution is to global sea level rise” will be, says Arnold.

See the details here: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1848210

Monday, October 15, 2018

Microsoft is getting into the lumber business

To help offset carbon, Microsoft plans to plant hundreds of acres of native trees in Ireland over the next few years -- the largest corporate investment in Irish forestry in a decade. The plan by Microsoft will focus on native trees, such as Pedunculate Oak, Downy Birch, Common Alder, and Scots Pine. This will help to offset Irish greenhouse gas emissions.


Thursday, December 4, 2014

Followup: iOS 8 + iPhone 6 = Portable Weather Station

With the iPhone six array of sensors, it is no wonder scientists are jumping on board. For example, OpenSignal is putting the barometer to use as old-fashioned weather sensors. Their app will download to any iPhone with iOS 8, with Apple’s two newest handsets you can take pressure readings, which Open Signal will plop into its crowdsourced weather map. Those readings combined with the barometric pressure measurements of Android users can then be used to give an ever-updating look at the pressure changes in your area. The data is also being sent off to climatologists, such as the University of Washington’s Cliff Mass, who are exploring ways of incorporating crowdsourced smartphone readings into future meteorology models.

Even add-on components are becoming available. Soon crowd-sourced real-time weather data will supplement satellite information to give us a better picture of our atmosphere. So you can do more than make satellite calls.

Interested in this technology? Read more here...

And, of course, sign up now for US national weather alerts...