Scienceblogtwo

In the summer of 2022, the US saw record-breaking heat waves that stressed electricity grids, put millions of the most vulnerable Americans in uncomfortable and occasionally lethal conditions, and triggered a flurry of health alerts and warnings. Summers that are oppressively hot and humid will occur more frequently if current patterns continue. This is the key finding of a collection of recent climate estimates produced by scientists from the NASA Jet Propulsion Laboratory (JPL) and several universities. Colin Raymond, a researcher at JPL, and colleagues used projections from 20 climate models to determine how much heat stress Americans may experience between 2075 and 2099 on the hottest summer days in relation to recorded norms between 1980 and 2005. If we assume a high-end emissions scenario and the world's temperature rises by 3°C to 5°C by 2075, the top 1% of summer days for heat stress will occur for a quarter to half of the summer. That's a big adjustment, Raymond contin...

In Jiangxi Province, China, Poyang Lake regularly changes in size between the winter and summer seasons. Lake water levels are often low in the winter. The largest freshwater lake in the nation then fills up as a result of summer rains from the Yangtze River. However, in the summer of 2022, the lake has not risen. In fact, the lake dried up early and water levels dropped to levels not seen in decades as a result of a protracted heat wave and drought that affected much of the Yangtze River Basin. The month of July 2022 Poyang Lake, July 10, 2022, annotated. For a larger, higher-resolution view, click the image. the month of August 2022 Poyang Lake, August 27, 2022, annotated. For a larger, higher-resolution view, click the image. On June 23, Poyang Lake reached its highest water levels of the year (as measured at the Xingzi Station). According to the Jiangxi Hydrological Monitoring Center, following that, the lake's water levels dropped quickly due to the combination of high tempera...

Pakistan has seen the worst floods in ten years as a result of the intense summer monsoon rainfall. According to the nation's National Disaster Management Authority, many more have been injured in addition to the more than 1,300 fatalities. Extreme flooding that has devastated more than 1 million homes has forced hundreds of thousands of people from their homes. The Operational Land Imagers aboard Landsat 9 on June 25, August 28, and September 5, 2022, and aboard Landsat 8 on September 5, 2022, collected the natural-color satellite photos on this page. The Main Nara Valley Drain has been breached, as seen in the detailed image (below). This canal runs roughly 160 kilometers (100 miles) to the north from Lake Manchar, which is seen in the lower portion of the picture, to Lake Hamal. In Sindh province, one of the regions most severely affected by flooding, the lake is located west of the Indus River. Sindh has already gotten more rain this year than it does on usual. Government offic...

The world's ocean basins have been largely quiet and free of tropical cyclones for the majority of 2022. Typhoon Hinnamnor, which quickly spun up to category-5 status in the Western Pacific Ocean last week, disturbed the calm. The storm's route has been unpredictable thus far, and it's not yet certain whether it will make landfall. On August 31, 2022, late in the morning, an astronaut at the International Space Station captured the image above. On September 1, 2022, NASA's Aqua spacecraft took a natural-color picture of Hinnamnor using the Moderate Resolution Imaging Spectroradiometer (MODIS). In spite of the fact that the typhoon in the photograph appeared to be moving toward Taiwan, it had already begun to shift north and away from the island. The U.S. Joint Typhoon Warning Center reported that Hinnamnor had sustained winds of 115 knots (140 miles/220 kilometers per hour) with gusts as high as 140 knots (160 miles/260 kilometers per hour) at the time of the MODIS imag...

In a study of roughly 2.3 million Europeans, negative correlations between cold weather and heart disease fatalities, particularly in underprivileged areas, were discovered. At the ESC Congress 2022, the recent research was presented. [1] In people with cardiac problems, excessive deaths from heart disease and stroke have been linked to hot weather.                                                                            The University of Oslo in Norway's Professor Stefan Agewall, the study's lead author, stated: "Climate change is causing both an increase in the average world temperature and extreme cold in specific locations. Intense heatwaves across Europe during the summer of 2003 resulted in over 70,000 additional deaths. [2] Excess hospital admissions and mortality are related to cold weather...

The second-largest reservoir in the country, Lake Powell, is currently at its lowest elevation since it was filled in the middle of the 1960s. The aerial perspective is depressing. Lake Powell, a crucial part of the western U.S. water supply, is currently only 26 percent full. Since 1967, this is the lowest point. The lake's surface had a water elevation of 3,533.3 feet on August 22, 2022. More than 166 feet lower than "full pool" (elevation 3,700 feet). Parts of Lake Powell are visible in the natural-color satellite photos on this page, taken by the Landsat spacecraft in the summers of 2017 and 2022. The photos from 2017 were taken by the Operational Land Imager on Landsat 8, while those from 2022 were taken by the Operational Land Imager-2 on Landsat 9. Southeast Utah and northeastern Arizona share a boundary with Lake Powell; the majority of the area depicted is in Utah. Visit the Earth Observatory feature World of Change: Water Level in Lake Powell for a year-by-year ...

A thorough 3D analysis of a large electrical discharge that ascended 50 miles into space above an Oklahoma thunderstorm has revealed new details about the mysterious atmospheric phenomena known as giant jets. The Oklahoma discharge carried 100 times as much electrical charge as a regular thunderstorm lightning bolt, making it the most potent enormous jet that has been analyzed to date. An estimated 300 coulombs of electrical charge were transferred by the enormous jet from the thunderstorm into the ionosphere, which is at the lower border of space. Less than five coulombs are typically carried by a typical lightning bolt between a cloud and the earth or within a cloud. Streamers of plasma that were relatively chilly (about 200 degrees Celsius/400 degrees Fahrenheit) were present in the upward discharge. It also included structures known as leaders, which are extremely hot and reach temperatures of more than 8,000 degrees Fahrenheit (4,400 degrees Celsius). According to the correspondin...

Although the ozone hole over Antarctica is well known, few people are aware that the protective ozone in the stratosphere periodically breaks down over the Arctic, depleting the ozone layer there. Prior to that, it occurred in the spring of 2011 and most recently in the months of spring 2020. Climate scientists have recorded weather abnormalities every time the ozone layer has been breached, which has affected the whole northern hemisphere. Those springtimes were extremely warm and dry in Siberia, central and northern Europe, Russia, and especially in the former Soviet Union. However, there were other places, like the arctic regions, where it was damp. These meteorological irregularities were especially noticeable in 2020. Additionally, that spring in Switzerland was abnormally warm and dry. Climate research is divided on the issue of whether the loss of stratospheric ozone causes the observed weather anomalies. Another factor is the stratospheric polar vortex, which develops in the wi...

According to a new research published today in the inaugural issue of Environmental Research: Climate, a new open access magazine, the imbalance of energy on Earth is the most crucial indicator of the scope and consequences of climate change. Kevin Trenberth, a renowned researcher at the National Center for Atmospheric Research (NCAR), and Lijing Cheng, a climate scientist and co-author, have created a new comprehensive inventory of all the different sources of surplus heat on Earth. In order to identify the imbalance, he looked at energy changes in the climate system's components of the atmosphere, ocean, land, and ice from 2000 to 2019. He then compared these changes to radiation at the top of the Earth's atmosphere. According to Trenberth, whose paper was published today, "the net energy imbalance is calculated by looking at how much heat is absorbed from the Sun and how much is able to radiate back into space. It is not yet possible to measure the imbalance directly; t...