Tuesday, May 31, 2011
Parts of Project
I have nearly finished my first World map for El Nino and Morgan has finished the El Nino Natural Disaster Info Sheet. We still have the World map for La Nina, the Info Sheet for La Nina Natural Disaster and Australia Map for El Nino and La Nina.
Monday, May 16, 2011
Exam Prep
1. 1032 hPa
2. Western Australia
3. North West Victoria.
4. The wind in New Zealand is a lot faster than to Australia.
5. May
6. Northern Hemisphere.
7. July and August.
8. 27.5 degrees Celsius and 100mm
9. 14 N
2. Western Australia
3. North West Victoria.
4. The wind in New Zealand is a lot faster than to Australia.
5. May
6. Northern Hemisphere.
7. July and August.
8. 27.5 degrees Celsius and 100mm
9. 14 N
Tuesday, May 10, 2011
2.4 Questions
1. A flood is water that inundates land which is normally dry.
2. Flash flooding is when rivers and streams are unable to cope with the sudden volume of water caused by heavy downpour. Urban areas are especially vulnerable due to the drainage systems which can become overloaded, resulting in flooding.
3. The inland rivers generally cover thousands of square kilometres in water lasting weeks, whereas the Coastal River systems tend to be short and fast flowing, generally lasting from a few hours to a few days.
4. Flooding affects farms, when it comes to stock and crops, but it also destroys infrastructures like roads and railway lines.
5. The town of Katherine received 374 millimetres of rain while the surrounding catchment area received between 400 and 500 millimetres over a short period of time (48 hours). The catchment was already saturated from previous weeks rainfall so most of the new rainfall ran off into the river which quickly caused a flood. The reason it was considered worse than the 2006 flood was because the 1998 flood peaked at 20.3 Metres above its usual flow level, where in 2006 it only peaked at 19 Metres.
6.
Economic: The flood would of impacted the Economy in Katherine due to the damage caused by the flooding, which cost a lot of money in repair costs.
Social: The social impact was bad because it caused 500 businesses and 1170 homes to be evacuated and Four people were killed as well as flooding the Whole town.
Environmental: The flooding can drown plants and crops and livestock.
7.
b) The Coastal gradient was a lot smaller than compared to the Inland River Catchment Gradient.
c) The gradient in a Coast area is a lot smaller so the water hasn't got that much land to pass through before it is cleared, compared to the inland river systems which have thousands of kilometres to pass through.
10. I had just moved to the town called Katherine, I decided to buy the local Motel because it seemed to be just about the only place tourists would be able to stay meaning it would be money well spent, if not profitable. Little did I know that it was in one of the worse areas if a flood were to occur. It was almost February of 1998, and one of the worst floods I've ever seen hit. 2 Metres of water came rushing through taking cars with it. As soon as I saw the water I knew the damage would be devastation. We moved to the highest floor in the motel avoiding the water, but we could hear it as it seeped through the doors and open windows flooding the motel below us. We came outside to see people crying at the loss of their possessions and one person actually asking why the floods had taken his son. It was truly one of the worse days that Katherine had seen.
2. Flash flooding is when rivers and streams are unable to cope with the sudden volume of water caused by heavy downpour. Urban areas are especially vulnerable due to the drainage systems which can become overloaded, resulting in flooding.
3. The inland rivers generally cover thousands of square kilometres in water lasting weeks, whereas the Coastal River systems tend to be short and fast flowing, generally lasting from a few hours to a few days.
4. Flooding affects farms, when it comes to stock and crops, but it also destroys infrastructures like roads and railway lines.
5. The town of Katherine received 374 millimetres of rain while the surrounding catchment area received between 400 and 500 millimetres over a short period of time (48 hours). The catchment was already saturated from previous weeks rainfall so most of the new rainfall ran off into the river which quickly caused a flood. The reason it was considered worse than the 2006 flood was because the 1998 flood peaked at 20.3 Metres above its usual flow level, where in 2006 it only peaked at 19 Metres.
6.
Economic: The flood would of impacted the Economy in Katherine due to the damage caused by the flooding, which cost a lot of money in repair costs.
Social: The social impact was bad because it caused 500 businesses and 1170 homes to be evacuated and Four people were killed as well as flooding the Whole town.
Environmental: The flooding can drown plants and crops and livestock.
7.
b) The Coastal gradient was a lot smaller than compared to the Inland River Catchment Gradient.
c) The gradient in a Coast area is a lot smaller so the water hasn't got that much land to pass through before it is cleared, compared to the inland river systems which have thousands of kilometres to pass through.
10. I had just moved to the town called Katherine, I decided to buy the local Motel because it seemed to be just about the only place tourists would be able to stay meaning it would be money well spent, if not profitable. Little did I know that it was in one of the worse areas if a flood were to occur. It was almost February of 1998, and one of the worst floods I've ever seen hit. 2 Metres of water came rushing through taking cars with it. As soon as I saw the water I knew the damage would be devastation. We moved to the highest floor in the motel avoiding the water, but we could hear it as it seeped through the doors and open windows flooding the motel below us. We came outside to see people crying at the loss of their possessions and one person actually asking why the floods had taken his son. It was truly one of the worse days that Katherine had seen.
Weather Journal - 11th May 2011
11/05/11 Weather Report Partly clouded with altostratus'. The chance of late showers. Winds westerly averaging up to 35 km/h. Max 17. Min 7.
2.5 Question
1. A tropical cyclone is a storm system characterized by a large low-pressure centre and numerous thunderstorms that produce strong winds and heavy rain.
2. They occur anywhere in the tropics.
3. Queensland, Northern Territory and North Western Australia.
4. out of the 10 that form in the Australian region 6 of them cross the coastline.
5. Hurricanes or typhoons.
6. a. tropical b. moist c. heat d. high e. spiral f. surface
7. The eye is middle of the cyclone and it is calm and has clear sky.
8.
9. By moving over land, or move to cooler oceans, they tend to dissipate or lose energy as the supply of warm, moist air is no longer present.
2. They occur anywhere in the tropics.
3. Queensland, Northern Territory and North Western Australia.
4. out of the 10 that form in the Australian region 6 of them cross the coastline.
5. Hurricanes or typhoons.
6. a. tropical b. moist c. heat d. high e. spiral f. surface
7. The eye is middle of the cyclone and it is calm and has clear sky.
8.
9. By moving over land, or move to cooler oceans, they tend to dissipate or lose energy as the supply of warm, moist air is no longer present.
2.8 Questions
1. a. i. 1017
ii. 1010
iii. 1018
iv. 1021
b. Adelaide
c. Melbourne will be experiencing fine weather but late rain and possible thunder storms.
d. i. trough
ii. ridge
iii. trough
e. Hobart because it is in a lower pressure area and winds travel into a low and clockwise around it.
Tuesday, May 3, 2011
Weather Journal - 4th May 2011
It is a cold dry day and the wind is coming from the south-west. The clouds in the sky are stratus. The air temperature is 20 degrees and there is a 40% chance of showers. 60% humidity.
Monday, May 2, 2011
2.1 Questions
1. A landslide is the movement of a mass of rock or sections of the Earth’s crust under the force of gravity.
2. Heavy rainfall, vibrations of Earthquakes and undercutting of banks and cliffs from waves or rivers.
3. The construction of roads or railways on hillsides and mining activities.
4. An earthquake is a violent or sudden shaking of the ground, causing great destruction, as a result of movements within the earth’s crust. They are measured on the Richter scale.
5. Intra-plated tension
6. Every 15 months, and they are too small to be noticed by people and communities.
7. 13 people were killed and thousands of buildings had damage taken to them.
8. Landslides are on the Earth’s crust and earthquakes are under the crust.
9. A tsunami is a really big wave that hits the shore and causes destruction.
10. Sudden shifting of continental plates, earthquake and landslides under the ocean.
11. Continental plates causes earthquake, forcing sea water above to rise, forming waves. Waves move rapidly in deep ocean reaching speeds of 800 kph. Then the waves head inland destroying everything in the path.
12. Shake, Drop and Roar.
13. An underwater earthquake measuring 9.3
14. 23 stations and it took 20 mins.
15. The waves are pushed up out of the ocean by the shallow water making the actual wave.
16. The United Nations responded by coordinating the development of a tsunami warning system for the Indian Ocean.
17. He is a geoscience professor and he provides tsunami warnings that could hit Australia.
18. a. 10°N 110ᵒE
b. i. 2 hours
ii. 9 hours
iii. 5 hours
iv. 9.5 hours
19. On the 30th of July, 1997 a catastrophic landslide occurred in the village of Thredbo. Two ski lodges collapsed and 18 people died. About 3,500 tonnes came down the slope. The Australian Government has spent $40 million to help all of Thredbo out with the rebuilding of the village.
20.
Deadly storms in the US
- at least 318 people have died, most of them in Alabama
- devastation has also been reported in Tennessee, Mississippi, Georgia and Virginia.
- a state emergency has been declared in 7 states and federal aid money is being sent to Alabama
- the causes include twisters, tornadoes and major storms
- millions of homes in Alabama are still without power
- some towns like Hackleburg have reported 90% damage
- 2,000 soldiers have joined the emergency workers as they continue to search for survivors.
- A twister was said to have been one mile wide
-
- devastation has also been reported in Tennessee, Mississippi, Georgia and Virginia.
- a state emergency has been declared in 7 states and federal aid money is being sent to Alabama
- the causes include twisters, tornadoes and major storms
- millions of homes in Alabama are still without power
- some towns like Hackleburg have reported 90% damage
- 2,000 soldiers have joined the emergency workers as they continue to search for survivors.
- A twister was said to have been one mile wide
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