Marine Science: Water and Weather
These robots come to the rescue after a disaster:
- In this unit, we learned about severe weather disasters and their repercussions. According to Murphy, explain how reducing the initial emergency response by one day can reduce the overall recovery by 1000 days? “If the initial responders can get in, save lives, mitigate whatever flooding danger there is, that means the other groups can get in to restore the water, the roads, the electricity, which means then the construction people, the insurance agents, all of them can get in to rebuild the houses, which then means you can restore the economy, and maybe even make it better and more resilient to the next disaster.” What she is saying is by having the robots we will have a more efficient and MUCH fasted way of supplying help. These machines will be able to help us on the spot when needed most, rather then waiting around for help.
- Explain the two different types of UAVs and how they are used.The two types of UAV used are Rotorcraft and the Hummingbird. They are used by being able to see the damage from angels we normally would not be able to see. They allow us to see the images a lot closer as well as fly over a higher angel that we weren’t able to do before. They help process the data from all over so new research can be created.
- Explain why unmanned marine vehicles are so useful—provide specific examples or facts from the video. Most of the world is covered in water. By having the marine bots would allow us to get information that we normally would not be able to have access to. For bridges, your pipelines, your ports -- wiped out. And if you don't have a port, you don't have a way to get in enough relief supplies to support a population. But by having these it would then allow you to have access to all the things that you will need to survive. We could’ve used the during the tsunami in Japan.
- Murphy ends her talk by saying, “It’s not about the robots. It’s about the data.” What does she mean by this? How is this pertinent to severe weather disasters? What she is trying to say is that we clearly need these machines. We are missing out by now using them more to our advantage. The data clearly shows that by having them it would be able to save our lives and help us with weather hazards that may occur.
How we wrecked the ocean
- Jackson shares what he calls “his little depressing story” about coral reefs in Jamaica following a hurricane. He claims destruction such as that in Jamaica is only getting worse. Please elaborate on why it is getting worse, being sure to tie
in natural weather catastrophes to your answer. Due to the high winds from the hurricane it caused everything to die off. Not only that but because there was over-fishing this caused the there to be less sea life. There is no longer any source of protection for the fish to live in now that the reefs have been destroyed.
- Explain what red tides are and the impact they have. A red tide is a discoloration of seawater caused by a bloom of toxic red dinoflagellates. Basically what happens is all the nutrients from the sea floor from massive storms build up and come to the surface for us to see. They can be very harmful to us and marine life. Due to the toxicity in the water they can cause. respiratory irritation in humans.
- Climate change has been a topic repeatedly mentioned in our study of Marine Science. How does Jackson express the impact that climate change has on corals? Based on how he uses it, what do you infer the word symbiosis to mean? Basically what happens during climate change is, when the temperature is rising the ocean heats up. Because of this it causes the corals to get bleached. Corals are unable to live in warm climate waters. Once all color pigmentation has left the coral it starts to slowly die off. Using the term symbiosis normally means that the environment is able to balance a way of living out that benefits 2 parties. In this case Jackson says that “the overfishing, the pollution and the climate change -- is that each thing doesn't happen in a vacuum. But there are these, what we call, positive feedbacks, the synergies among them that make the whole vastly greater than the sum of the parts.” Which pretty much means that all these things aren’t taking place at once. Therefore they will be restored eventually.
- Jackson says, “The really scary things though are the physical, chemical, oceanographic things that are happening.” What does he mean by this? As the surface of the ocean gets warmer, the water is lighter when it's warmer, it becomes harder and harder to turn the ocean over. I think he means that due to this it can cause major issues with the marine animals.