Posts

Week 16: Sweden Blog Final

Image
Sweden, overall, has been a very interesting country to learn about. During the past couple months, we have learned about Sweden’s tectonic plates, earthquakes, volcanoes, mass wasting, fire danger, coastal erosion, extreme weather events, etc. Each week, it was prevalent that Sweden does not experience most of these things mentioned. The two dangers that occur the most in Sweden are sea level rise which in turn leads to coastal flooding and erosion.  Around the world, countries are seeing sea level rise. Global warming is causing this. With climate change, glaciers are melting causing the sea level to slowly rise. This is affecting all countries with a coastline. With the sea level rising, Sweden and other countries are experiencing coastal erosion and flooding. What is coastal erosion? " Coastal erosion is the process by which local sea level rise, strong wave action, and coastal flooding wear down or carry away rocks, soils, and/or sands along the coast." High tides and st...

Week 13: Sweden's Coastal Erosion

Image
            Coastal Erosion can be seen anywhere with a coastline since the sea level is rising. " Coastal erosion is the process by which local sea level rise, strong wave action, and coastal flooding wear down or carry away rocks, soils, and/or sands along the coast." High tides and strong waves can be seen every day and leads to the erosion of the coast.               Can coastal erosion be seen in Sweden? Yes, there is a substantial amount of coastal erosion seen in Sweden. " Land uplift is taking place in most of Sweden as a result of the melting of the massive land ice of the last ice age, but in the southernmost part of the country uplift has come to a halt. The ongoing rise in sea level is therefore leading to substantial coastal erosion along Sweden’s southern coast where the land consists of easily eroded soils." Climate change is the main cause of this. With glaciers melting all over the worl...

Week 10: Extreme Weather Events in Sweden

Image
        What are extreme weather events? " Extreme events are occurrences of unusually severe weather or climate conditions that can cause devastating impacts on communities and agricultural and natural ecosystems. Weather-related extreme events are often short-lived and include heat waves, freezes, heavy downpours, tornadoes, tropical cyclones and floods."          With some research, it appears that Sweden does not experience any extreme weather events often, but occasionally they do get heat waves. Sweden's last heatwave occurred this past July. Temperatures ranged from 85-95. With it being dry in some places, wildfire warnings were put into place. Sweden advised residents to stay inside and if outside to frequently rest in shaded areas.  Below is a map of Europe's temperatures during the heatwave this past summer.  https://crisis24.garda.com/alerts/2022/07/sweden-heatwave-forecast-across-southern-sweden-throu...

Week 8: Mass Wasting in Sweden

Image
          What are mass wasting events? Mass wasting events include landslides, mudslides, rockslides, etc. Mass wasting events can be connected to other natural disasters like earthquakes and flooding. Sweden does have some mass wasting. In the last couple of years Sweden has experienced a couple of serious landslides. With heavier precipitation occurring in the country the risk of landslides happening has increased heavily.  Sweden knows this can become a big problem in the future, so they have put efforts in place so when they so occur, they are not as bad as others.            Putting measures into place before a landslide occurs can be very beneficial. In past cases in Sweden, when efforts were made before hand, the cleanup cost was significantly less, as well as injuries that were sustained. Sweden's efforts include stabilization of areas at risk and good drainage being put into place where areas may get more rain.  ...

Week 5: Sweden and Volcanoes

Image
         What is a volcano? According to NASA, "A  volcano  is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption." A volcano can be very scary, considering when they erupt, they spew lava everywhere, and can burn anything in sight. Now what exactly causes volcanoes? Again, according to NASA, "Volcanoes occur when material significantly warmer than its surroundings is erupted onto the surface of a planet or moon from its interior. On Earth, the erupted material can be liquid rock ("lava" when it's on the surface, "magma" when it's underground), ash, cinders, and/or gas." Another question might be- where are the most active volcanoes? I have included a picture below, that you can look at to see where volcanoes are located all over the world. In certain areas of the world, volcanoes can greatly affect the area and the...

Week 3: Sweden's Earthquakes and Seismicity

Image
    As you can see from the map below, Sweden, (circled in blue) has a very low earthquake percentage. From what was discussed last week, Sweden has a low seismicity area. Very little can be found on big earthquakes happening in Sweden. With that being said, Sweden does have its little shakers. To repeat from last week, m ost of Sweden's Earthquakes are felt in the south-west by Lake  Vanern, as well as Norr Botten, and along the north-east coast. Sweden's low seismicity is thanks to that it is located in a very old and secure part of earth's crust. The earthquakes felt in the country are very small making them insignificant and non-damage causing.  https://ec.europa.eu/research-and-innovation/en/horizon-magazine/mapping-europes-earthquake-risk https://www.stralsakerhetsmyndigheten.se/contentassets/4e89ae88294f451dadb6cc4d7d0dbb57/earthquake-activity-in-sweden.pdf

Week 2: Sweden and Tectonic Plates

Image
    As seen below, Sweden, (circled in blue), is located on the Eurasian Tectonic Plate. Sweden does also have some fault lines. They are estimated to be of late-glacial age. The biggest fault being 150km in length. These fault lines were developed in the Precambrian, meaning the earliest eon in history. Recent patterns of the seismic data still show that the forces which produced the fault could still be active.      While Sweden is on the Eurasian Plate, and has its faults, it has a low seismicity area. Most of Sweden's Earthquakes are felt in the south-west by Lake  Vanern, as well as Norr Botten, and along the north-east coast.  https://earthhow.com/7-major-tectonic-plates https://www.tandfonline.com/doi/abs/10.1080/11035897809452533?journalCode=sgff19 https://www.stralsakerhetsmyndigheten.se/contentassets/4e89ae88294f451dadb6cc4d7d0dbb57/earthquake-activity-in-sweden.pdf