Elements at muriwai - yr13

1,863 views

Published on

Elements at muriwai for use with the muriwai workbook.

Published in: Education
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,863
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
28
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Elements at muriwai - yr13

  1. 1. Elements at Muriwai Pg 16 and 17
  2. 2. ELEMENTS CURRENTS • Strong rip currents due to high energy beach • Force of waves sideways affect seafloor TIDES • Highest tide is 4.3m (compared to 3.3m at St Leonards) • Occurs when sun and moon are in line and the gravitational pull is the greatest (full moon) SEDIMENT • 2 main types – black iron sand (titanomagnetite) and lighter coloured white sand (quartz and feldspar). Only 5% produced by erosion, majority brought in by longshore drift from volcanic regions in the South • Iron sand is smaller in diameter (0.25mm) compared to quartz grains (0.5mm) • Both are light enough to be picked up by the wind
  3. 3. ELEMENTS ROCK TYPE • The headland is composed of Manuka Breccia which is a conglomerate (mixture) of sandstone with volcanic intrusions BIOTA • Headland vegetation is pohutukawa, manuka trees and flax which have adapted to extreme weather conditions • Sand dunes have minimal vegetation. Spinifex, pingao and marram grass grow on the dunes trapping sediment • Endangered tohera shellfish beds • Gannet colony on Motutara Stack • Fur seals on Oaia Island
  4. 4. WATER ELEMENTS
  5. 5. LAND ELEMENTS
  6. 6. CLIMATIC ELEMENTS
  7. 7. BIOTIC ELEMENTS
  8. 8. Wind Rose pg 17 • A wind rose is a diagram that tell us information about wind in an area. It tells us – Direction of wind – Force or speed of wind – How long the wind blew at that speed/direction
  9. 9. How to draw a wind rose pg 17 • Draw a small circle (or an octagon if you prefer) in the middle of page or area given • Mark in your 4 main compass points with dashes • Calculate a scale e.g. 1cm = 5 knots • Draw a key e.g. 3-15 knots Over 15 knots • Rule out bars in the direction wind blew for the length of time (%) it blew. Shade in bar the appropriate wind speed
  10. 10. Climate Graph pg 18 • Plot the information given in the table at the top of page 18 on to the climate graph outline • Look for some reminders of appropriate conventions of a climate graph on the next slide….
  11. 11. Left hand axis shows temp, axis is labelled with degrees celsius Title includes LOCATION and GRAPH TYPE Points for the temperature are plotted in the MIDDLE of a column and joined with a SMOOTH curve Temperature is shown using a LINE graph and is done using RED Right hand axis shows rainfall. Axis is labelled with mm Rainfall is shown using a BAR graph and is shaded in BLUE Months are represented down the bottom with a letter
  12. 12. Significance of climate • Below the climate graph write 2-3 sentences describing the significance of climate to the natural environment at Muriwai.

×